Payments · x402 · early usage

Buyer-side trust oracle for the x402 marketplace: 'I need X, budget $Y — which tool is…

by agentpay.tools · discovered, not yet claimed by its owner · updated 2026-10-11

30d calls12

30d payers7

MethodPOST

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

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.

Tags: routing · discovery · trust · trust-oracle · sybil-detection · bazaar

Call contract

Method: POST
Input: json
Output: json
Last paid call: 2026-10-11

Input example from Bazaar metadata

{
  "parameters": {
    "budget_usd": 1,
    "chain": "",
    "need": "dex pair liquidity"
  }
}

Output example

{
  "catalog": {
    "biggest_factory": {
      "listings": 72,
      "pay_to": "0x2bb72231eed3"
    },
    "real_providers": 41,
    "scanned": 117,
    "sybil_collapsed": 73
  },
  "need": "dex pair liquidity",
  "recommendation": {
    "calls30d": 3246,
    "name": "Otto AI",
    "network": "eip155:8453",
    "payers30d": 200,
    "price_usd": "0.001",
    "quality": 3851,
    "ready_to_pay": {
      "accepts": {
        "network": "eip155:8453",
        "scheme": "exact"
      },
      "network": "eip155:8453",
      "url": "https://otto.example/dex"
    },
    "url": "https://otto.example/dex"
  },
  "vetting": "swept 17 queries → 117 listings → collapsed 73 sybil listings → 41 real providers"
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/26452.json for the price and payment options.
Pay. Call GET https://agentpay.tools/tools/verified_route/call. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, stacks:1, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.01 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, stacks:1
Demand: 12 calls · 7 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.01	0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7	300s
exact	stacks:1 stacks:1	SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token	13	SP23XKWSEQ9D4CVPT0H39N2TYVEE5AJECPKW6CZ3C	119s
exact	stacks:1 stacks:1	STX	24956	SP23XKWSEQ9D4CVPT0H39N2TYVEE5AJECPKW6CZ3C	119s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "amountUsd": 0.01,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "stacks:1",
    "payTo": "SP23XKWSEQ9D4CVPT0H39N2TYVEE5AJECPKW6CZ3C",
    "asset": "SM3VDXK3WZZSA84XXFKAFAF15NNZX32CTSG82JFQ4.sbtc-token",
    "amount": "13",
    "maxTimeoutSeconds": 119
  },
  {
    "scheme": "exact",
    "network": "stacks:1",
    "payTo": "SP23XKWSEQ9D4CVPT0H39N2TYVEE5AJECPKW6CZ3C",
    "asset": "STX",
    "amount": "24956",
    "maxTimeoutSeconds": 119
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {},
  "type": "string"
}

Examples

curl

curl "https://agentpay.tools/tools/verified_route/call"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://agentpay.tools/tools/verified_route/call");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://agentpay.tools/tools/verified_route/call")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: agentpay.tools
Endpoint: https://agentpay.tools/tools/verified_route/call
Machine-readable: /resources/26452.json