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x402donghang Agent APIs

Data PAYMENT-READY

payment-ready until 2026-09-16

Pay-per-call agent APIs led by live crypto narrative research: recent X and web evidence, CoinGecko market context, structured JSON, and source URLs. Also provides bilingual context briefs, summarization, and OpenAI-compatible chat. USDC via x402 on Base and Solana; no account or API key.

Pay from $0.001 to $0.05 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

measured since 2026-08-13 (start of our harvest window) · $0.65 all-time · settled via coinbase

BASE URL https://x402donghang.duckdns.org │ WEBSITE https://x402donghang.duckdns.org/x402/ │ ENDPOINTS 8 │ NETWORK Base / Solana │ ASSET USDC │ MEMBER SINCE 2026-08-13 │ MONITORED SINCE 2026-08-13

VERDICT

ranking generation 3

mixed 74/100 #257 of 283 in Data by measured score

What the score read on this service: status offline, 96.4% uptime 30d, 914ms response p95, x402 compliance 13 of 13, $0.001 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 283 listings, this one among them. That set is wider than the 283 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN DATA

Other Data services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE	BAND	SCORE	UPTIME 30D	VOL 30D
StableEnrich	strong	96	100%	$2.0k
glim.sh	strong	95	100%	$52.19
SniperX•x402	strong	95	100%	$527.03
cn402	strong	93	100%	$39.13
API Acre	solid	92	99.8%	$34.05

5 of 282 other ranked services in Data · see the whole category

ASSESSMENT

updated 3h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 96.4%

uptime 24h: 0%
uptime 7d: 89.5%
uptime 30d: 96.4%
uptime 90d: 96.5%
response p95: 914ms
avg response: 501ms
total checks: 2,217

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (13/13)

13 of 13 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.001 to $0.05 (p10 in Data)

price (min): $0.001
price (max): $0.05
category percentile (min): p10 in Data
category percentile (max): p60 in Data
endpoints / prices: 8 / 5
model: tiered
stability: 0%

risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age: 4899d
registrar: Gandi SAS
hosting: custom
domain created: 2013-04-12

Identity facts, not a risk score.

traction $0.483 30d · 5 buyers

volume 30d: $0.483
buyers 30d: 5
settlements 30d: 50
measured since: 2026-08-13 (start of our harvest window)
last settlement: 2026-09-05
top buyer share: 85% of 30d volume
trend 7d vs 30d: 0.00x the 30d daily rate
networks: eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time: $0.65
settlements all-time: 62
median settlement 30d: $0.01
max settlement 30d: $0.02
settled via: coinbase ($0.48, 50 tx)

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

CHANGES

10 in 30d

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes schema changed 6d ago (10 in 30d)

schema changed · 6d ago

endpoint added POST /x402/v1/crypto-intel

endpoint added POST /x402/v1/single-brief

endpoint added POST /x402/v1/token-dd

endpoint added POST /x402/v1/watchlist-brief

schema added POST /x402/v1/crypto-intel exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}

schema added POST /x402/v1/crypto-intel exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added POST /x402/v1/single-brief exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}

schema added POST /x402/v1/single-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added POST /x402/v1/token-dd exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}

schema added POST /x402/v1/token-dd exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added POST /x402/v1/watchlist-brief exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}

schema added POST /x402/v1/watchlist-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema changed · 7d ago

schema removed POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema removed POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema removed POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema changed · 7d ago

schema removed POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema removed POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema removed POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema changed · 9d ago

schema removed POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema removed POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema removed POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema added POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema changed · 9d ago

schema removed POST /x402/v1/chat/completions exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema removed POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema removed POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema removed POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema added POST /x402/v1/chat/completions exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema added POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema added POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema added POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

price changed · 9d ago

POST /x402/v1/chat/completions · eip155:8453 · USDC: 20000 → 1000

POST /x402/v1/chat/completions · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 20000 → 1000

schema changed · 14d ago

schema removed POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema removed POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema removed POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added POST /x402/v1/crypto-brief exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema added POST /x402/v1/crypto-radar exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema added POST /x402/v1/summarize exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema changed · 16d ago

schema changed · 17d ago

Amounts are on-wire atomic units in the named asset.

see all changes for this service

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD	PATH	PRICE	NETWORK	ASSET	402 CHANNEL
POST	/x402/v1/chat/completions	$0.001	Base/Solana	USDC	header
POST	/x402/v1/crypto-brief	$0.01	Base/Solana	USDC	header
POST	/x402/v1/crypto-intel	$0.05	Base/Solana	USDC	header
POST	/x402/v1/crypto-radar	$0.02	Base/Solana	USDC	header
POST	/x402/v1/single-brief	$0.005	Base/Solana	USDC	header
POST	/x402/v1/summarize	$0.01	Base/Solana	USDC	header
POST	/x402/v1/token-dd	$0.01	Base/Solana	USDC	header
POST	/x402/v1/watchlist-brief	$0.05	Base/Solana	USDC	header

8 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /x402/v1/chat/completions returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request

curl -i -X POST 'https://x402donghang.duckdns.org/x402/v1/chat/completions'

// 402 response (captured by monitor) · 7 payloads · click to expand

[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x7F394b1E127CBCEA346979E552A4227328385B3d",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "DzUgGWEzssF472WRZNEmMmnTxZRA9QCbYMeoQVYMdSN3",
        "amount": "50000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402donghang.duckdns.org/x402/v1/watchlist-brief",
      "mimeType": "",
      "description": "Bulk bilingual EN/ZH crypto watchlist briefs as structured JSON for agents. Input an array of tickers (1-10). Output one bias/thesis/risks/actions brief per symbol — a multi-asset snapshot in a single call. $0.05 USDC per call."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "focus": "ETF flows, funding, key levels",
              "locale": "zh",
              "symbols": [
                "BTC",
                "ETH",
                "SOL"
              ]
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "items": [
                {
                  "bias": "中性偏多",
                  "risks": [
                    "流动性抽离",
                    "宏观突发"
                  ],
                  "symbol": "BTC",
                  "thesis": "短线结构未破，但杠杆拥挤限制上行弹性。",
                  "actions": [
                    "轻仓观察",
                    "避免追高"
                  ],
                  "bullets": [
                    "现货支撑仍在",
                    "资金费率偏贵",
                    "等待回踩再加仓"
                  ],
                  "timeframe": "波段",
                  "confidence": 0.62,
                  "invalidation": "跌破关键支撑并放量"
                }
              ],
              "product": "watchlist-brief",
              "disclaimer": "信息整理，非投资建议"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "symbols"
                  ],
                  "properties": {
                    "focus": {
                      "type": "string",
                      "description": "Optional shared focus: spot | perp | macro | news, max 300 characters"
                    },
                    "locale": {
                      "enum": [
                        "en",
                        "zh"
                      ],
                      "type": "string",
                      "description": "Output language; default zh"
                    },
                    "symbols": {
                      "type": "array",
                      "items": {
                        "type": "string",
                        "description": "Crypto ticker, e.g. BTC, ETH, SOL"
                      },
                      "maxItems": 10,
                      "minItems": 1,
                      "description": "Tickers to brief; one structured brief per symbol"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "a": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "App builder code"
            },
            "s": {
              "type": "array",
              "items": {
                "type": "string",
                "pattern": "^[a-z0-9_]{1,32}$"
              },
              "maxItems": 11,
              "description": "Service builder codes"
            },
            "w": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "Wallet builder code"
            }
          },
          "additionalProperties": false
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x7F394b1E127CBCEA346979E552A4227328385B3d",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "DzUgGWEzssF472WRZNEmMmnTxZRA9QCbYMeoQVYMdSN3",
        "amount": "5000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402donghang.duckdns.org/x402/v1/single-brief",
      "mimeType": "",
      "description": "Single-symbol bilingual crypto brief at a micro price point for agents. Input one ticker plus optional focus/context. Output concise bias/thesis/bullets/risks/actions. $0.005 USDC per call — cheap enough for per-token loops."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "focus": "spot",
              "locale": "zh",
              "symbol": "BTC"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "bias": "中性偏多",
              "risks": [
                "宏观事件",
                "流动性收缩"
              ],
              "symbol": "BTC",
              "thesis": "短线企稳，等待量能确认。",
              "actions": [
                "观察",
                "回踩分批"
              ],
              "bullets": [
                "现货支撑稳固",
                "杠杆尚未过热"
              ],
              "product": "single-brief",
              "timeframe": "波段",
              "confidence": 0.6,
              "disclaimer": "信息整理，非投资建议",
              "invalidation": "跌破关键支撑"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "symbol"
                  ],
                  "properties": {
                    "focus": {
                      "type": "string",
                      "maxLength": 64,
                      "description": "Optional focus: spot | perp | macro | news"
                    },
                    "locale": {
                      "enum": [
                        "en",
                        "zh"
                      ],
                      "type": "string",
                      "description": "Output language; default zh"
                    },
                    "symbol": {
                      "type": "string",
                      "maxLength": 20,
                      "minLength": 1,
                      "description": "Crypto ticker, e.g. BTC, ETH, SOL"
                    },
                    "context": {
                      "type": "string",
                      "maxLength": 6000,
                      "description": "Optional market notes or on-chain snapshot"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "a": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "App builder code"
            },
            "s": {
              "type": "array",
              "items": {
                "type": "string",
                "pattern": "^[a-z0-9_]{1,32}$"
              },
              "maxItems": 11,
              "description": "Service builder codes"
            },
            "w": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "Wallet builder code"
            }
          },
          "additionalProperties": false
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x7F394b1E127CBCEA346979E552A4227328385B3d",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "DzUgGWEzssF472WRZNEmMmnTxZRA9QCbYMeoQVYMdSN3",
        "amount": "10000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402donghang.duckdns.org/x402/v1/token-dd",
      "mimeType": "",
      "description": "Structured token due-diligence card for agents. Input a ticker (optionally a contract/mint address). Output risk score/level, liquidity, holder concentration, red and green flags, and a clear verdict. $0.01 USDC per call."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "locale": "zh",
              "symbol": "SOL",
              "address": "0x1234567890abcdef1234567890abcdef12345678"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "symbol": "SOL",
              "product": "token-dd",
              "verdict": "Tradeable with standard risk controls.",
              "liquidity": "thick on major venues",
              "red_flags": [],
              "disclaimer": "Automated research snapshot, not financial advice.",
              "risk_level": "low-medium",
              "risk_score": 2.4,
              "green_flags": [
                "active development",
                "strong volume"
              ],
              "holder_concentration": "moderate"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "symbol"
                  ],
                  "properties": {
                    "focus": {
                      "type": "string",
                      "maxLength": 64,
                      "description": "Optional focus: liquidity | holders | security | narrative"
                    },
                    "locale": {
                      "enum": [
                        "en",
                        "zh"
                      ],
                      "type": "string",
                      "description": "Output language; default zh"
                    },
                    "symbol": {
                      "type": "string",
                      "maxLength": 20,
                      "minLength": 1,
                      "description": "Token ticker, e.g. SOL, HYPE"
                    },
                    "address": {
                      "type": "string",
                      "maxLength": 80,
                      "minLength": 20,
                      "description": "Optional contract/mint address for on-chain context"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "a": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "App builder code"
            },
            "s": {
              "type": "array",
              "items": {
                "type": "string",
                "pattern": "^[a-z0-9_]{1,32}$"
              },
              "maxItems": 11,
              "description": "Service builder codes"
            },
            "w": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "Wallet builder code"
            }
          },
          "additionalProperties": false
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x7F394b1E127CBCEA346979E552A4227328385B3d",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "DzUgGWEzssF472WRZNEmMmnTxZRA9QCbYMeoQVYMdSN3",
        "amount": "50000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402donghang.duckdns.org/x402/v1/crypto-intel",
      "mimeType": "",
      "description": "Three-in-one crypto intelligence for agents: funding regime, liquidation risk, and market sentiment for one symbol. Input ticker plus window. $0.05 USDC per call — funding + liquidation + sentiment in one shot."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "locale": "zh",
              "symbol": "BTC",
              "window": "24h"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "symbol": "BTC",
              "funding": {
                "detail": "perp basis healthy",
                "regime": "neutral-to-positive",
                "extreme": false
              },
              "product": "crypto-intel",
              "sentiment": {
                "label": "cautiously bullish",
                "score": 0.42,
                "drivers": [
                  "ETF inflows",
                  "lower volatility"
                ]
              },
              "confidence": 0.65,
              "disclaimer": "信息整理，非投资建议",
              "liquidation": {
                "note": "open interest moderate",
                "risk": "low",
                "trigger_zone": "below recent range low"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "symbol"
                  ],
                  "properties": {
                    "locale": {
                      "enum": [
                        "en",
                        "zh"
                      ],
                      "type": "string",
                      "description": "Output language; default zh"
                    },
                    "symbol": {
                      "type": "string",
                      "maxLength": 20,
                      "minLength": 1,
                      "description": "Crypto ticker, e.g. BTC, ETH, SOL"
                    },
                    "window": {
                      "enum": [
                        "1h",
                        "6h",
                        "24h",
                        "7d"
                      ],
                      "type": "string",
                      "description": "Analysis window; default 24h"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "a": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "App builder code"
            },
            "s": {
              "type": "array",
              "items": {
                "type": "string",
                "pattern": "^[a-z0-9_]{1,32}$"
              },
              "maxItems": 11,
              "description": "Service builder codes"
            },
            "w": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "Wallet builder code"
            }
          },
          "additionalProperties": false
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x7F394b1E127CBCEA346979E552A4227328385B3d",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "DzUgGWEzssF472WRZNEmMmnTxZRA9QCbYMeoQVYMdSN3",
        "amount": "10000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402donghang.duckdns.org/x402/v1/summarize",
      "mimeType": "",
      "description": "Bilingual EN/ZH summary API for a public URL or raw text. Returns structured summary, key points, and actions. $0.01 USDC per call. Lightweight fetch, no headless browser."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "这里是一段需要摘要的中文或英文正文……",
              "max_chars": 500
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "title": "标题（如有）",
              "source": {
                "type": "text",
                "chars_in": 1200
              },
              "actions": [
                "可执行动作1",
                "动作2",
                "动作3"
              ],
              "product": "summarize",
              "summary": "中文要点摘要……",
              "key_points": [
                "要点1",
                "要点2",
                "要点3"
              ]
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "Public http(s) URL to fetch and summarize (optional if text given)"
                    },
                    "text": {
                      "type": "string",
                      "description": "Raw text to summarize (optional if url given)"
                    },
                    "locale": {
                      "type": "string",
                      "description": "Default zh"
                    },
                    "max_chars": {
                      "type": "number",
                      "description": "Target summary length in Chinese chars, default 500, max 1200"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "a": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "App builder code"
            },
            "s": {
              "type": "array",
              "items": {
                "type": "string",
                "pattern": "^[a-z0-9_]{1,32}$"
              },
              "maxItems": 11,
              "description": "Service builder codes"
            },
            "w": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "Wallet builder code"
            }
          },
          "additionalProperties": false
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x7F394b1E127CBCEA346979E552A4227328385B3d",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "DzUgGWEzssF472WRZNEmMmnTxZRA9QCbYMeoQVYMdSN3",
        "amount": "20000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402donghang.duckdns.org/x402/v1/crypto-radar",
      "mimeType": "",
      "description": "Live crypto narrative and sentiment radar for AI agents. Searches recent X posts and the web, adds a verifiable CoinGecko market snapshot, and returns structured signals, risks, watch items, and source URLs. Input ticker + 1h/6h/24h/7d window. $0.02 USDC per call."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "focus": "ETF flows, regulation, exploits, exchange flows, and market-moving narratives",
              "locale": "en",
              "symbol": "BTC",
              "window": "6h"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "risks": [
                "A low-volatility range can break sharply in either direction."
              ],
              "market": {
                "provider": "CoinGecko",
                "price_usd": 63821,
                "change_24h_pct": 0.19
              },
              "symbol": "BTC",
              "window": "6h",
              "product": "crypto-radar",
              "signals": [],
              "sources": [
                {
                  "url": "https://example.com/source",
                  "type": "web",
                  "title": "Source title"
                }
              ],
              "summary": "ETF-flow support is offset by cautious positioning and low volatility.",
              "sentiment": "mixed",
              "confidence": 0.74,
              "disclaimer": "Information only, not financial advice.",
              "narratives": [
                {
                  "name": "ETF flows",
                  "direction": "supportive",
                  "evidence_urls": [
                    "https://example.com/source"
                  ]
                }
              ],
              "watch_next": [
                "Confirmed exchange-flow changes",
                "A break of the observed range"
              ],
              "observed_at": "2026-08-13T07:30:00.000Z",
              "source_count": 1,
              "sentiment_score": 0.12
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "symbol"
                  ],
                  "properties": {
                    "focus": {
                      "type": "string",
                      "description": "Optional research focus, max 300 characters"
                    },
                    "locale": {
                      "enum": [
                        "en",
                        "zh"
                      ],
                      "type": "string",
                      "description": "Output language; default en"
                    },
                    "symbol": {
                      "type": "string",
                      "description": "Crypto ticker, e.g. BTC, ETH, SOL, HYPE, XRP, DOGE"
                    },
                    "window": {
                      "enum": [
                        "1h",
                        "6h",
                        "24h",
                        "7d"
                      ],
                      "type": "string",
                      "description": "Freshness window; default 6h"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "a": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "App builder code"
            },
            "s": {
              "type": "array",
              "items": {
                "type": "string",
                "pattern": "^[a-z0-9_]{1,32}$"
              },
              "maxItems": 11,
              "description": "Service builder codes"
            },
            "w": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "Wallet builder code"
            }
          },
          "additionalProperties": false
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x7F394b1E127CBCEA346979E552A4227328385B3d",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "DzUgGWEzssF472WRZNEmMmnTxZRA9QCbYMeoQVYMdSN3",
        "amount": "10000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402donghang.duckdns.org/x402/v1/crypto-brief",
      "mimeType": "",
      "description": "Bilingual EN/ZH crypto market brief as structured JSON for agents. Input symbol plus optional caller context. Output bias, thesis, evidence bullets, risks, invalidation, and actions. $0.01 USDC per call."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "locale": "zh",
              "symbol": "BTC",
              "context": "funding 转正，现货稳，合约多头拥挤"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "bias": "中性偏多",
              "risks": [
                "流动性抽离",
                "宏观突发"
              ],
              "symbol": "BTC",
              "thesis": "短线结构未破，但杠杆拥挤限制上行弹性。",
              "actions": [
                "轻仓观察",
                "避免追高"
              ],
              "bullets": [
                "现货支撑仍在",
                "资金费率偏贵",
                "等待回踩再加仓"
              ],
              "product": "crypto-brief",
              "confidence": 0.62,
              "disclaimer": "信息整理，非投资建议",
              "invalidation": "跌破关键支撑并放量"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "symbol"
                  ],
                  "properties": {
                    "focus": {
                      "type": "string",
                      "description": "Optional focus: spot | perp | macro | news"
                    },
                    "locale": {
                      "type": "string",
                      "description": "Default zh (Chinese brief)"
                    },
                    "symbol": {
                      "type": "string",
                      "description": "Ticker e.g. BTC / ETH / SOL / HYPE"
                    },
                    "context": {
                      "type": "string",
                      "description": "Optional market notes, news blurb, or on-chain snapshot (plain text)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "a": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "App builder code"
            },
            "s": {
              "type": "array",
              "items": {
                "type": "string",
                "pattern": "^[a-z0-9_]{1,32}$"
              },
              "maxItems": 11,
              "description": "Service builder codes"
            },
            "w": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$",
              "description": "Wallet builder code"
            }
          },
          "additionalProperties": false
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/x402donghang-agent-apis/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME

30d UPTIME 96.2%

RESPONSE TIME

AVG RESP 511ms

PRICE (captured 402, USD)

Median across 8 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)

price percentile in Data

site signals present (of 6)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)

DISTINCT BUYERS

COMPLIANCE

13/13 checks pass · grade A

last 402 captured 2026-09-08 · last up 2026-09-09

402 payload captured
accepts[] array present
payTo address recoverable
payTo at accepts[0].payTo (conformant shape)
payTo is a valid on-chain address
atomic price declared
atomic price in a sane range
asset (token) address declared
network resolves to CAIP-2
payment scheme declared
served over HTTPS
declares the current x402 version (2)
EIP-712 domain parameters present on every EVM entry
x402 v2 envelope delivered in the payment-required header

SITE PILLARS

homepage reachable
openapi doc
pricing page
llms.txt
robots.txt
terms page

recent checks (18) live · click to expand

TIME STATUS RESP CAUSE

23:16:01 UTC ○ DOWN 135ms network: fetch failed

17:15:01 UTC ○ DOWN 167ms network: fetch failed

11:14:02 UTC ○ DOWN 332ms network: fetch failed

05:13:01 UTC ○ DOWN 147ms network: fetch failed

23:12:02 UTC ○ DOWN 325ms network: fetch failed

17:11:01 UTC ○ DOWN 163ms network: fetch failed

11:10:02 UTC ○ DOWN 290ms network: fetch failed

05:09:01 UTC ○ DOWN 133ms network: fetch failed

23:08:03 UTC ○ DOWN 388ms network: fetch failed

17:07:01 UTC ○ DOWN 146ms network: fetch failed

11:06:02 UTC ○ DOWN 303ms network: fetch failed

05:05:01 UTC ○ DOWN 139ms network: fetch failed

23:04:03 UTC ○ DOWN 425ms network: fetch failed

17:03:01 UTC ○ DOWN 139ms network: fetch failed

11:02:02 UTC ○ DOWN 330ms network: fetch failed

05:01:01 UTC ○ DOWN 159ms network: fetch failed

23:00:01 UTC ○ DOWN 171ms network: fetch failed

18:59:01 UTC ○ DOWN 185ms network: fetch failed

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status

x402donghang Agent APIs uptime on x402-list — live uptime

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