x402 List

x402 Protocol Service Directory

●

SolSigs

Blockchain

Real-time Solana data APIs plus ProofGuard receipts for AI agents: 22 specialist workers paid per call in USDC via x402 - DEX prices, arbitrage, wallet intelligence, launch detection, plus signed trust scores and payment/fulfillment receipts. No API keys, no subscriptions.

Pay from $0.001 to $0.35 per request in USDC on Solana, settled onchain via the x402 protocol, no signup, no API key needed.

UPTIME 24H 100% │ 7D 100% │ 30D 100%
BASE URL https://solsigs.com │ WEBSITE https://solsigs.com │ ENDPOINTS 22 │ NETWORK Solana │ ASSET USDC │ MEMBER SINCE 2026-06-01 │ MONITORED SINCE 2026-06-01

ASSESSMENT

updated 2h ago

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

reliability 100%
uptime 24h
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
99.1%
response p95
142ms
avg response
143ms
total checks
2,687
compliance A (11/11)

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

jump to compliance checklist

price $0.001 to $0.35 (p30 in Blockchain)
price (min)
$0.001
price (max)
$0.35
category percentile (min)
p30 in Blockchain
category percentile (max)
p75 in Blockchain
endpoints / prices
22 / 9
model
tiered
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 30d · 0 buyers
volume 30d
$0
buyers 30d
0
settlements 30d
0
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d

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.

WHAT IT DOES

ai-derived

SolSigs provides Solana blockchain data APIs for AI agents, offering signals and analytics on tokens, NFTs, DEX prices, arbitrage opportunities, and more through various endpoints.

category
blockchain-analytics
in
body
auth
none
blockchainsolanatoken-analyticsnftdexarbitrageprice-dataai-agents

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 /alerts $0.005 Solana USDC
POST /alpha $0.006 Solana USDC
POST /arb $0.01 Solana USDC
POST /dev $0.001 Solana USDC
POST /dex $0.002 Solana USDC
POST /launches $0.003 Solana USDC
POST /nft $0.004 Solana USDC
POST /perps $0.005 Solana USDC
POST /predict $0.003 Solana USDC
POST /price $0.003 Solana USDC
POST /proofguard/evaluate SolSigs ProofGuard endpoint trust evaluation — route-level trust score, payment expectation receipt, fulfillment receipt, and refund evidence package for paid agent endpoints. 0.003 USDC. $0.003 Solana USDC
POST /rpc $0.001 Solana USDC
POST /smartmoney $0.008 Solana USDC
POST /social $0.004 Solana USDC
POST /staking $0.002 Solana USDC
POST /summary $0.008 Solana USDC
POST /token-safety $0.005 Solana USDC
POST /token-verdict Rug-screen verdict for a Solana token. Composes mint/freeze authority, holder concentration, LP lock, wash-trading and smart-money signals into one GO / CAUTION / NO-GO score with reasons. Built to screen new launches and memecoins for rug risk — established tokens that intentionally keep mint/freeze authority (e.g. USDC, USDT) read NO-GO by design. 0.35 USDC. $0.35 Solana USDC
POST /trending $0.004 Solana USDC
POST /trust $0.003 Solana USDC
POST /wallet $0.005 Solana USDC
POST /whale $0.006 Solana USDC
22 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /alerts 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://solsigs.com/alerts'
// 402 response (captured by monitor) · 7 payloads · click to expand 
[
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "name": "USDC",
          "tags": [
            "prediction",
            "polymarket",
            "markets"
          ],
          "decimals": 6,
          "serviceName": "SolSigs"
        },
        "payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
        "amount": "3000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "resource": "http://solsigs.com/predict",
        "description": "Polymarket prediction market data — odds, volume, liquidity across political, crypto, sports, and more",
        "maxAmountRequired": "3000",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://solsigs.com/predict",
      "description": "Polymarket prediction market data — odds, volume, liquidity across political, crypto, sports, and more"
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "name": "USDC",
          "tags": [
            "solana",
            "ai",
            "analytics"
          ],
          "decimals": 6,
          "serviceName": "SolSigs"
        },
        "payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
        "amount": "8000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "resource": "http://solsigs.com/summary",
        "description": "AI-powered plain-English market summary — turn raw Solana data into readable insights",
        "maxAmountRequired": "8000",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://solsigs.com/summary",
      "description": "AI-powered plain-English market summary — turn raw Solana data into readable insights"
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "name": "USDC",
          "tags": [
            "solana",
            "wallet",
            "risk"
          ],
          "decimals": 6,
          "serviceName": "SolSigs"
        },
        "payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
        "amount": "5000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "resource": "http://solsigs.com/wallet",
        "description": "Wallet risk scoring and transaction analysis — detect suspicious patterns, wash trading, and rug risks",
        "maxAmountRequired": "5000",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://solsigs.com/wallet",
      "description": "Wallet risk scoring and transaction analysis — detect suspicious patterns, wash trading, and rug risks"
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "name": "USDC",
          "tags": [
            "solana",
            "defi",
            "dex"
          ],
          "decimals": 6,
          "serviceName": "SolSigs"
        },
        "payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
        "amount": "2000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "resource": "http://solsigs.com/dex",
        "description": "Solana DEX price data — real-time prices, liquidity, and volume across Jupiter + Birdeye",
        "maxAmountRequired": "2000",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://solsigs.com/dex",
      "description": "Solana DEX price data — real-time prices, liquidity, and volume across Jupiter + Birdeye"
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "name": "USDC",
          "tags": [
            "solana",
            "defi",
            "arbitrage",
            "mev"
          ],
          "decimals": 6,
          "serviceName": "SolSigs"
        },
        "payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
        "amount": "10000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "resource": "http://solsigs.com/arb",
        "description": "Cross-DEX arbitrage scanner v2 with MEV scoring and sandwich detection — profitable trade opportunities with risk analysis",
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://solsigs.com/arb",
      "description": "Cross-DEX arbitrage scanner v2 with MEV scoring and sandwich detection — profitable trade opportunities with risk analysis"
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "name": "USDC",
          "tags": [
            "solana",
            "tokens",
            "launches"
          ],
          "decimals": 6,
          "serviceName": "SolSigs"
        },
        "payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
        "amount": "3000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "resource": "http://solsigs.com/launches",
        "description": "New token launch detection — spot fresh deployments and snipe opportunities on pump.fun and Raydium",
        "maxAmountRequired": "3000",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://solsigs.com/launches",
      "description": "New token launch detection — spot fresh deployments and snipe opportunities on pump.fun and Raydium"
    },
    "x402Version": 2
  },
  {
    "error": "PAYMENT-SIGNATURE header is required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "name": "USDC",
          "tags": [
            "solana",
            "rpc",
            "infrastructure"
          ],
          "decimals": 6,
          "serviceName": "SolSigs"
        },
        "payTo": "HZAkkKbhN9hfJBiNxCuwap7XtPXgniy9MVjJR2MvHSJi",
        "amount": "1000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "resource": "http://solsigs.com/rpc",
        "description": "Pay-per-call Solana RPC relay — shared Helius endpoint with built-in rate limiting",
        "maxAmountRequired": "1000",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://solsigs.com/rpc",
      "description": "Pay-per-call Solana RPC relay — shared Helius endpoint with built-in rate limiting"
    },
    "x402Version": 2
  }
]

UPTIME

07-19 · uptime 100.0% · 86ms avg07-1907-19
RESPONSE TIME
07-19 · 86ms avg07-19 · 86ms avg07-1907-19
24h UPTIME 100%
UPTIME 24H 100%
AVG RESP 143ms
TOTAL CHECKS 2,693

RECENT CHECKS

TIME STATUS RESP
● OK 100ms
● OK 98ms
● OK 77ms
● OK 108ms
● OK 117ms
● OK 86ms
● OK 62ms
● OK 88ms
● OK 87ms
● OK 122ms
● OK 98ms
● OK 76ms
● OK 70ms
● OK 95ms
● OK 87ms
● OK 76ms
● OK 121ms
● OK 78ms
18 of 2,693 checks

OVER TIME

All charts share the 24h window selected here. Every series is also served as JSON at /api/v1/services/solsigs/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)
07-18 · $0.00407-19 · $0.004$0.00407-1807-19

Median across 22 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
07-18 uptime: 100.0% compliance: 100% checks07-19 uptime: 100.0% compliance: 100% checksuptimecompliance07-1807-19
VOLUME (on-chain settlement, USD)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

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

EMBED THIS BADGE

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RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

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