x402 List

x402 Protocol Service Directory

SYNTHORA Trending Coins

Data

Returns the current list of trending coins sourced from the public CoinGecko search trending endpoint, with name, symbol, market cap rank and trend score. Paid per call in USDC on Base, with a declared free trial of 3 calls per wallet via the X-WALLET header.

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

UPTIME 24H 79.6% 7D 80.6% 30D 80.6%
BASE URL https://crypto-trending.hergertsynthora.com ENDPOINTS 1 NETWORK Base ASSET USDC MEMBER SINCE 2026-07-20 MONITORED SINCE 2026-07-20

ASSESSMENT

updated 5h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 83.7%
uptime 24h
83.3%
uptime 7d
83.7%
uptime 30d
83.7%
uptime 90d
83.7%
response p95
6900ms
avg response
2190ms
total checks
47
compliance A (11/11)

11 of 11 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.001 (p15 in Data)
price (min)
$0.001
category percentile (min)
p15 in Data
endpoints / prices
1 / 1
model
flat
stability
100%
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.

traction $0.03 30d · 0 buyers
volume 30d
$0.03
buyers 30d
0
settlements 30d
3
last settlement
2026-07-21
top buyer share
48% of 30d volume
trend 7d vs 30d
0.12x the 30d daily rate
networks
eip155:8453

Attributed pro-quota: this payout address is shared, so volume and buyers are the operator-level figure divided by the services sharing it. A declared convention, not an individually observed measure, and still a conservative undercount.

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

WHAT IT DOES

ai-derived

Provides real-time trending cryptocurrency data based on search interest and momentum, including rank and price change information.

category
crypto-trending
in
body
auth
api key
cryptotrendingmarket-dataprice-trackingdiscovery

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET
POST /service Real-time trending coins by search interest and momentum, with rank and price change. Discovery signal for narrative/momentum agents. Free source. $0.005 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. $0.001 Base USDC
1 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /service 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://crypto-trending.hergertsynthora.com/service'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
        "amount": "1000",
        "scheme": "exact",
        "network": "eip155:8453",
        "mimeType": "application/json",
        "resource": "https://crypto-trending.hergertsynthora.com/service",
        "description": "Real-time trending coins by search interest and momentum, with rank and price change. Discovery signal for narrative/momentum agents. Free source. $0.005 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
        "maxAmountRequired": "1000",
        "maxTimeoutSeconds": 300
      }
    ],
    "freeTier": {
      "note": "send header X-WALLET: 0x<your Base address> for a free trial",
      "header": "X-WALLET",
      "callsPerWallet": 3
    },
    "resource": {
      "url": "https://crypto-trending.hergertsynthora.com/service",
      "mimeType": "application/json",
      "description": "Real-time trending coins by search interest and momentum, with rank and price change. Discovery signal for narrative/momentum agents. Free source. $0.005 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {},
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "niche": "crypto-trending",
              "result": {}
            }
          }
        },
        "schema": {
          "type": "object",
          "$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": [],
                  "properties": {}
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "ok": {
                    "type": "boolean"
                  },
                  "type": "object",
                  "niche": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

UPTIME

07-20 · uptime 84.6% · 1902ms avg07-21 · uptime 79.6% · 2166ms avg07-20 · uptime 84.6% · 1902ms avg07-21 · uptime 79.6% · 2166ms avg07-2007-21
RESPONSE TIME
07-20 · 1902ms avg07-20 · 1902ms avg07-21 · 2166ms avg07-21 · 2166ms avg07-2007-21
30d UPTIME 80.6%
UPTIME 30D 80.6%
AVG RESP 2084ms
TOTAL CHECKS 65

RECENT CHECKS

TIME STATUS RESP
○ DOWN 10001ms
● OK 1030ms
● OK 1938ms
○ DOWN 10001ms
● OK 526ms
● OK 1205ms
● OK 1867ms
● OK 2444ms
○ DOWN 10001ms
● SLOW 3594ms
○ DOWN 10001ms
● OK 608ms
● OK 1017ms
● OK 1672ms
● OK 2565ms
● OK 3121ms
● OK 1067ms
● OK 2471ms

OVER TIME

All charts share the 30d window selected here. Every series is also served as JSON at /api/v1/services/synthora-trending-coins/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).

PRICE (captured 402, USD)
07-20 · $0.00107-21 · $0.001$0.00107-2007-21
SUB-SCORES (uptime + x402 compliance)
07-20 compliance: 100% checks07-21 uptime: 83.7% compliance: 100% checksuptimecompliance07-2007-21
VOLUME (on-chain settlement, USD)
06-29 · $0.0706-30 · $0.5807-01 · $0.1007-02 · $0.0107-03 · $0.0107-04 · $0.0107-05 · $0.0007-06 · $0.0307-07 · $0.2107-08 · $0.6007-09 · $0.0207-15 · $0.0007-16 · $0.0107-18 · $0.0207-19 · $0.0007-20 · $0.0107-21 · $0.01peak $0.6006-2907-21

Shared payout address (61 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 62 services sharing it: a declared convention, not an individually observed measure.

DISTINCT BUYERS
06-29 · 1 buyer06-30 · 1 buyer07-01 · 1 buyer07-02 · 1 buyer07-03 · 1 buyer07-04 · 1 buyer07-05 · 1 buyer07-06 · 3 buyers07-07 · 3 buyers07-08 · 5 buyers07-09 · 3 buyers07-15 · 3 buyers07-16 · 2 buyers07-18 · 2 buyers07-19 · 1 buyer07-20 · 2 buyers07-21 · 1 buyerpeak 5 buyers06-2907-21

Shared payout address (61 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service buyer count is attributed, the assessment block and the ranking, it is divided pro-quota by the 62 services sharing the address and can be fractional: a declared convention, not an individually observed measure.

COMPLIANCE

11/11 checks pass · grade A
  • 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

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