payment-ready until 2026-09-14
Budget-capped x402 tools for AI agents: session_create enforces a hard spend cap with receipts; verified_route vets x402 providers by real usage; pre_trade_check is a one-call pre-trade safety verdict. 17 free crypto/market-data tools alongside. USDC on Base (standard x402) and Stellar via SDK.
Pay from $0.01 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
listed 2026-09-07 · no on-chain settlement recorded yet
VERDICT
ranking generation 3solid 86/100 #172 of 283 in Data by measured score
What the score read on this service: status online, 100% uptime 24h (no 30d window yet), 132ms response p95, x402 compliance 14 of 14, $0.01 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).
| SERVICE | BAND | SCORE | UPTIME 30D | VOL 30D |
|---|---|---|---|---|
| API Acre | strong | 99 | 99.8% | --- |
| AgentFund US Economic, SEC & On-Chain Data | strong | 98 | 100% | --- |
| KR Crypto Intelligence | strong | 98 | 100% | --- |
| SuVerse Pay | strong | 98 | 100% | --- |
| WebberSites x402 Data API | strong | 98 | 100% | --- |
5 of 282 other ranked services in Data · see the whole category
ASSESSMENT
updated 3h agoThe 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 100%
- uptime 24h
- -
- uptime 7d
- -
- uptime 30d
- -
- uptime 90d
- -
- response p95
- 132ms
- avg response
- 132ms
- total checks
- 1
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (14/14)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.01 (p58 in Data)
- price (min)
- $0.01
- category percentile (min)
- p58 in Data
- endpoints / prices
- 3 / 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.
- domain age
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
traction $0.00 30d · 0 buyers
- volume 30d
- $0.00
- buyers 30d
- 0
- settlements 30d
- 0
- measured since
- --- (start of our harvest window)
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
- settled via
- -
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-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /tools/pre_trade_check/call | AgentPay tool call | $0.01 | Base | USDC | header |
| GET | /tools/session_create/call | AgentPay tool call | $0.01 | Base | USDC | header |
| GET | /tools/verified_route/call | AgentPay tool call | $0.01 | Base | USDC | header |
3 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /tools/pre_trade_check/call returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i 'https://agentpay.tools/tools/pre_trade_check/call'
// 402 response (captured by monitor) · 3 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://agentpay.tools/tools/verified_route/call",
"description": "AgentPay tool call",
"outputSchema": {
"input": {
"type": "object",
"required": [
"need"
],
"properties": {
"need": {
"type": "string",
"description": "What the agent needs, e.g. 'dex pair liquidity', 'crypto prices'"
},
"chain": {
"type": "string",
"default": "",
"description": "Optional chain filter: 'base', 'arbitrum', 'arbitrum-stack'. Empty = all chains."
},
"budget_usd": {
"type": "number",
"default": 1,
"description": "Max USDC the agent will pay the downstream tool per call"
}
}
},
"errors": [
{
"body": {
"error": "<summary>",
"reason": "<machine-readable reason>"
},
"when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)",
"retry": "Re-request the challenge and pay again",
"status": 402
},
{
"body": {
"detail": [
{
"loc": [
"body"
],
"msg": "<what is wrong>",
"type": "<error type>"
}
]
},
"when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422",
"retry": "Fix the body and retry with a fresh payment",
"status": 422
},
{
"body": {
"detail": "Tool '<name>' not found"
},
"when": "Unknown tool name",
"status": 404
},
{
"body": {
"error": "Rate limit exceeded"
},
"when": "Rate limited (per-IP and per-wallet limits)",
"retry": "Back off and retry after a minute",
"status": 429
},
{
"body": {
"tool": "<name>",
"error": "Tool execution failed",
"payment_status": "refund_pending"
},
"when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call",
"status": 502
},
{
"body": {
"detail": "<what is unavailable>"
},
"when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)",
"retry": "Retry shortly",
"status": 503
}
],
"output": {
"need": "dex pair liquidity",
"chain": null,
"catalog": {
"scanned": 117,
"after_vetting": 114,
"real_providers": 41,
"unique_wallets": 38,
"biggest_factory": {
"pay_to": "0x2bb72231eed3",
"listings": 72
},
"sybil_collapsed": 73
},
"vetting": "swept 17 queries → 117 listings → collapsed 73 sybil listings → 41 real providers",
"survivors": [],
"budget_usd": "1",
"recommendation": {
"url": "https://otto.example/dex",
"name": "Otto AI",
"flags": [],
"pay_to": "0x0e84ddedaae6a7",
"network": "eip155:8453",
"quality": 3851,
"calls30d": 3246,
"payers30d": 200,
"price_usd": "0.001",
"ready_to_pay": {
"url": "https://otto.example/dex",
"accepts": {
"scheme": "exact",
"network": "eip155:8453"
},
"network": "eip155:8453",
"price_usd": "0.001"
}
}
}
},
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://agentpay.tools/tools/verified_route/call",
"tags": [
"routing",
"discovery",
"trust",
"trust-oracle",
"sybil-detection"
],
"mimeType": "application/json",
"description": "Buyer-side trust oracle for the x402 marketplace: 'I need X, budget $Y — which tool is real?' Sweeps the WHOLE catalog across many queries, collapses sybil/factory clusters (one wallet stamping many fake-distinct listings), ranks the genuinely-used survivors by unique-payer usage, and returns one vetted pick with a ready-to-pay challenge. The credit-bureau check an agent can't do in a single query.",
"serviceName": "AgentPay x402 Trust Oracle"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"parameters": {
"need": "dex pair liquidity",
"chain": "",
"budget_usd": 1
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"errors": [
{
"body": {
"error": "<summary>",
"reason": "<machine-readable reason>"
},
"when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)",
"retry": "Re-request the challenge and pay again",
"status": 402
},
{
"body": {
"detail": [
{
"loc": [
"body"
],
"msg": "<what is wrong>",
"type": "<error type>"
}
]
},
"when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422",
"retry": "Fix the body and retry with a fresh payment",
"status": 422
},
{
"body": {
"detail": "Tool '<name>' not found"
},
"when": "Unknown tool name",
"status": 404
},
{
"body": {
"error": "Rate limit exceeded"
},
"when": "Rate limited (per-IP and per-wallet limits)",
"retry": "Back off and retry after a minute",
"status": 429
},
{
"body": {
"tool": "<name>",
"error": "Tool execution failed",
"payment_status": "refund_pending"
},
"when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call",
"status": 502
},
{
"body": {
"detail": "<what is unavailable>"
},
"when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)",
"retry": "Retry shortly",
"status": 503
}
],
"output": {
"type": "json",
"example": {
"need": "dex pair liquidity",
"catalog": {
"scanned": 117,
"real_providers": 41,
"biggest_factory": {
"pay_to": "0x2bb72231eed3",
"listings": 72
},
"sybil_collapsed": 73
},
"vetting": "swept 17 queries → 117 listings → collapsed 73 sybil listings → 41 real providers",
"recommendation": {
"url": "https://otto.example/dex",
"name": "Otto AI",
"network": "eip155:8453",
"quality": 3851,
"calls30d": 3246,
"payers30d": 200,
"price_usd": "0.001",
"ready_to_pay": {
"url": "https://otto.example/dex",
"accepts": {
"scheme": "exact",
"network": "eip155:8453"
},
"network": "eip155:8453"
}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"bodyType",
"body",
"method"
],
"properties": {
"body": {
"type": "object",
"properties": {
"parameters": {
"type": "object",
"required": [
"need"
],
"properties": {
"need": {
"type": "string",
"description": "What the agent needs, e.g. 'dex pair liquidity', 'crypto prices'"
},
"chain": {
"type": "string",
"description": "Optional chain filter: 'base', 'arbitrum', 'solana'. Empty = all chains. Solana picks are discovery-only (probe coverage: Base only — on-chain delivery unverified)"
},
"budget_usd": {
"type": "number",
"description": "Max USDC to pay the downstream tool per call (default 1)"
}
}
}
}
},
"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"
}
}
}
}
},
"description": "Vet before you pay a stranger: sweep the x402 catalog, collapse sybil/factory listings, rank real providers by usage, and return ONE recommendation under budget with a ready-to-pay x402 challenge + a catalog dossier (scanned / real_providers / sybil_collapsed / biggest_factory)."
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://agentpay.tools/tools/session_create/call",
"description": "AgentPay tool call",
"outputSchema": {
"input": {
"type": "object",
"properties": {
"label": {
"type": "string",
"description": "Optional human-readable label for this session"
},
"max_spend": {
"type": "string",
"default": "0.10",
"description": "Hard budget cap in USDC for this session, e.g. '0.10'"
},
"agent_address": {
"type": "string",
"description": "Your wallet address (Stellar G... or EVM 0x...)"
}
}
},
"errors": [
{
"body": {
"error": "<summary>",
"reason": "<machine-readable reason>"
},
"when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)",
"retry": "Re-request the challenge and pay again",
"status": 402
},
{
"body": {
"detail": [
{
"loc": [
"body"
],
"msg": "<what is wrong>",
"type": "<error type>"
}
]
},
"when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422",
"retry": "Fix the body and retry with a fresh payment",
"status": 422
},
{
"body": {
"detail": "Tool '<name>' not found"
},
"when": "Unknown tool name",
"status": 404
},
{
"body": {
"error": "Rate limit exceeded"
},
"when": "Rate limited (per-IP and per-wallet limits)",
"retry": "Back off and retry after a minute",
"status": 429
},
{
"body": {
"tool": "<name>",
"error": "Tool execution failed",
"payment_status": "refund_pending"
},
"when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call",
"status": 502
},
{
"body": {
"detail": "<what is unavailable>"
},
"when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)",
"retry": "Retry shortly",
"status": 503
}
],
"output": {
"label": null,
"receipt": {
"network": "base",
"tx_hash": "0xabc...def",
"amount_usdc": "0.01"
},
"sdk_hint": "Use `from agentpay import Session` to enforce the max_spend cap client-side.",
"max_spend": "0.10",
"created_at": "2026-05-27T12:00:00Z",
"session_id": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
"gateway_url": "https://agentpay.tools",
"agent_address": "GBCVQCNFWPM3GDO4GPT4YEQ42ZHPY67QTJA3WN5ERQIKQDXKBX62SLNJ",
"tools_endpoint": "https://agentpay.tools/tools"
}
},
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://agentpay.tools/v1/session/create",
"tags": [
"budget",
"receipts",
"session",
"spend-control",
"agent-commerce"
],
"mimeType": "application/json",
"description": "A stateful, multi-chain spending session for AI agents. One session enforces a hard USDC budget cap across every tool call, with a verifiable receipt and running ledger for each payment — not a one-shot budget check, but persistent spend governance with a full audit trail. USDC on Base (standard x402) or Stellar (via the AgentPay SDK).",
"serviceName": "AgentPay Spend Cap & Receipts"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"label": "session",
"max_spend": "0.10",
"agent_address": "0x0000000000000000000000000000000000000000"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"errors": [
{
"body": {
"error": "<summary>",
"reason": "<machine-readable reason>"
},
"when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)",
"retry": "Re-request the challenge and pay again",
"status": 402
},
{
"body": {
"detail": [
{
"loc": [
"body"
],
"msg": "<what is wrong>",
"type": "<error type>"
}
]
},
"when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422",
"retry": "Fix the body and retry with a fresh payment",
"status": 422
},
{
"body": {
"detail": "Tool '<name>' not found"
},
"when": "Unknown tool name",
"status": 404
},
{
"body": {
"error": "Rate limit exceeded"
},
"when": "Rate limited (per-IP and per-wallet limits)",
"retry": "Back off and retry after a minute",
"status": 429
},
{
"body": {
"tool": "<name>",
"error": "Tool execution failed",
"payment_status": "refund_pending"
},
"when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call",
"status": 502
},
{
"body": {
"detail": "<what is unavailable>"
},
"when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)",
"retry": "Retry shortly",
"status": 503
}
],
"output": {
"type": "json",
"example": {
"receipt": {
"network": "eip155:8453",
"tx_hash": "0xee85d8dd374b5d1cb40bfa441086af557d356acc2bb4d5819f56331fce42adee",
"amount_usdc": "0.01"
},
"max_spend": "0.10",
"created_at": "2026-05-29T00:00:00Z",
"session_id": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
"gateway_url": "https://agentpay.tools",
"tools_endpoint": "https://agentpay.tools/tools"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"agent_address"
],
"properties": {
"label": {
"type": "string",
"description": "Optional human-readable session label"
},
"max_spend": {
"type": "string",
"description": "Hard budget cap in USDC, e.g. '0.10'"
},
"agent_address": {
"type": "string",
"description": "Paying agent's EVM wallet address"
}
}
},
"type": {
"type": "string"
},
"method": {
"type": "string"
},
"bodyType": {
"type": "string"
}
}
}
}
},
"description": "A stateful, multi-chain spending session for AI agents: a hard USDC budget cap across every tool call, with a verifiable receipt and running ledger per payment. Not a one-shot budget check — persistent spend governance with a full audit trail. USDC on Base (standard x402) or Stellar (via the AgentPay SDK)."
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://agentpay.tools/tools/pre_trade_check/call",
"description": "AgentPay tool call",
"outputSchema": {
"input": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"side": {
"enum": [
"long",
"short"
],
"type": "string",
"default": "long",
"description": "Trade direction (funding carry is side-aware)"
},
"symbol": {
"type": "string",
"description": "Asset to check, e.g. 'ETH', 'BTC', 'SOL'"
},
"size_usd": {
"type": "number",
"default": 10000,
"description": "Intended position size in USD (drives the slippage check)"
},
"token_address": {
"type": "string",
"description": "Optional ERC-20 contract address for the GoPlus security scan. Auto-resolved for major tokens; required for a full verdict on tokens the resolver doesn't know (otherwise security reads 'unknown' and caps the verdict at caution)"
}
}
},
"errors": [
{
"body": {
"error": "<summary>",
"reason": "<machine-readable reason>"
},
"when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)",
"retry": "Re-request the challenge and pay again",
"status": 402
},
{
"body": {
"detail": [
{
"loc": [
"body"
],
"msg": "<what is wrong>",
"type": "<error type>"
}
]
},
"when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422",
"retry": "Fix the body and retry with a fresh payment",
"status": 422
},
{
"body": {
"detail": "Tool '<name>' not found"
},
"when": "Unknown tool name",
"status": 404
},
{
"body": {
"error": "Rate limit exceeded"
},
"when": "Rate limited (per-IP and per-wallet limits)",
"retry": "Back off and retry after a minute",
"status": 429
},
{
"body": {
"tool": "<name>",
"error": "Tool execution failed",
"payment_status": "refund_pending"
},
"when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call",
"status": 502
},
{
"body": {
"detail": "<what is unavailable>"
},
"when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)",
"retry": "Retry shortly",
"status": 503
}
],
"output": {
"side": "long",
"symbol": "ETH",
"factors": {
"carry": {
"level": "caution",
"reason": "longs paying elevated funding",
"annualized_pct": 67.9,
"median_funding_pct": 0.062
},
"crowding": {
"level": "ok",
"reason": "positioning unremarkable",
"long_short_ratio": 1.4,
"oi_change_24h_pct": 3.2
},
"security": {
"level": "skipped",
"reason": "no token_address provided"
},
"liquidity": {
"level": "ok",
"reason": "fills within 0.011% of best ask",
"bucket_usd": 50000,
"slippage_pct": 0.011
}
},
"verdict": "caution",
"size_usd": 50000
}
},
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://agentpay.tools/tools/pre_trade_check/call",
"tags": [
"trading",
"trade",
"risk",
"slippage",
"pre-trade-check"
],
"mimeType": "application/json",
"description": "Pre-trade risk check for AI agents trading crypto: live orderbook slippage at YOUR size, side-aware funding carry, open-interest crowding, and optional contract security — composed into a single ok/caution/avoid verdict with per-factor reasons and raw data embedded. Answers 'is this trade sane?' before trading, not after. Replaces four API integrations plus the judgment layer.",
"serviceName": "AgentPay Pre-Trade Risk Check"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"parameters": {
"side": "long",
"symbol": "ETH",
"size_usd": 50000
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"errors": [
{
"body": {
"error": "<summary>",
"reason": "<machine-readable reason>"
},
"when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)",
"retry": "Re-request the challenge and pay again",
"status": 402
},
{
"body": {
"detail": [
{
"loc": [
"body"
],
"msg": "<what is wrong>",
"type": "<error type>"
}
]
},
"when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422",
"retry": "Fix the body and retry with a fresh payment",
"status": 422
},
{
"body": {
"detail": "Tool '<name>' not found"
},
"when": "Unknown tool name",
"status": 404
},
{
"body": {
"error": "Rate limit exceeded"
},
"when": "Rate limited (per-IP and per-wallet limits)",
"retry": "Back off and retry after a minute",
"status": 429
},
{
"body": {
"tool": "<name>",
"error": "Tool execution failed",
"payment_status": "refund_pending"
},
"when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call",
"status": 502
},
{
"body": {
"detail": "<what is unavailable>"
},
"when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)",
"retry": "Retry shortly",
"status": 503
}
],
"output": {
"type": "json",
"example": {
"side": "long",
"symbol": "ETH",
"factors": {
"carry": {
"level": "ok",
"reason": "carry unremarkable",
"median_funding_pct": 0.01
},
"crowding": {
"level": "ok",
"reason": "positioning unremarkable",
"long_short_ratio": 1.2
},
"security": {
"level": "skipped",
"reason": "no token_address provided"
},
"liquidity": {
"level": "ok",
"reason": "fills within 0.001% of best price",
"slippage_pct": 0.001
}
},
"verdict": "ok",
"size_usd": 50000
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"bodyType",
"body",
"method"
],
"properties": {
"body": {
"type": "object",
"properties": {
"parameters": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"side": {
"enum": [
"long",
"short"
],
"type": "string",
"description": "Trade direction (funding carry is side-aware; default long)"
},
"symbol": {
"type": "string",
"description": "Asset to check, e.g. 'ETH', 'BTC', 'SOL'"
},
"size_usd": {
"type": "number",
"description": "Intended position size in USD (drives the slippage check; default 10000)"
},
"token_address": {
"type": "string",
"description": "Optional ERC-20 address — adds a GoPlus security scan"
}
}
}
}
},
"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"
}
}
}
}
},
"description": "Pre-trade risk check for AI agents trading crypto: 'I want to long $X of SYMBOL — is now sane?' Live slippage at your size + side-aware funding carry + OI crowding + optional security scan → one ok/caution/avoid verdict with per-factor breakdown and raw components embedded."
}
},
"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/agentpay/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 100%
RESPONSE TIME
AVG RESP 275ms
PRICE (captured 402, USD)
Median across 3 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
VOLUME (on-chain settlement, USD)
DISTINCT BUYERS
COMPLIANCE
14/14 checks pass · grade Alast 402 captured 2026-09-07 · last up 2026-09-07
- 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 (12) live · click to expand
TIME STATUS RESP CAUSE
● OK 359ms
● OK 220ms
● OK 99ms
● OK 320ms
● OK 308ms
● OK 325ms
● OK 267ms
● OK 351ms
● SLOW 523ms
● OK 110ms
● OK 287ms
● OK 132ms
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/agentpay?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/agentpay.svg" alt="AgentPay listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/agentpay?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/agentpay?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/agentpay.svg?data=uptime" alt="AgentPay uptime on x402-list" height="28"> </a>