Market Data · x402

402Signal checks the endpoint, price and recipient before your agent pays, on x402 and…

by 402signal.com · discovered, not yet claimed by its owner · updated 2026-09-18

Not responding. This endpoint did not answer its last liveness check (2026-10-13). It may be temporarily down.

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

402Signal checks the endpoint, price and recipient before your agent pays, on x402 and MPP, and returns a signed record verifiable offline. $0.003 on Base, Solana, and Algorand only when a qualifying live offer is found; a miss is free. Seller payment is separate. Your agent keeps the wallet. Evidence enters the PQ Trust log on Algorand MainNet. require_route_binding=true adds a signed v4 receipt for buyer-side comparison before signing. Guide: https://402signal.com/developers#route-binding

Tags: bazaar

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/6820.json for the price and payment options.
Pay. Call GET https://402signal.com/route. 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, Solana, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.003 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, Solana, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=
Uptime: 0 of the last 1 checks answered
Calls (30d): 397 · 5 unique payers (third-party data from the public x402 Bazaar)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.003	0xa2604ae688228af8349363770351bfcec66d4fa0	60s
exact	Solana solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp	USDC	$0.003	C8qDYG8NTyvdY85gvGfs1WajwGhiLu6f1vi3JaG1r1iA	60s
exact	algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=	31566704	3000	N2JSJZCSORMYGYO2NSIYRUEMBFRHEOMYODVXV2MXYYHB5H2JVUGG6NJ4NQ	60s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xa2604ae688228af8349363770351bfcec66d4fa0",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "amountUsd": 0.003,
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "C8qDYG8NTyvdY85gvGfs1WajwGhiLu6f1vi3JaG1r1iA",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "3000",
    "amountUsd": 0.003,
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
    "payTo": "N2JSJZCSORMYGYO2NSIYRUEMBFRHEOMYODVXV2MXYYHB5H2JVUGG6NJ4NQ",
    "asset": "31566704",
    "amount": "3000",
    "maxTimeoutSeconds": 60
  }
]

Schemas

Output schema (JSON Schema)

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "need": "erc20 token balance",
          "url": "https://example.com/x402/balance"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "billing": {
            "amount_atomic": "3000",
            "asset": "USDC",
            "condition": "live_eligible_route_found",
            "display_amount": "$0.003",
            "model": "success_only_v1",
            "rail": "base",
            "settled": true,
            "settlement_attempted": true,
            "settlement_state": "settled"
          },
          "has_402_challenge": true,
          "health": {
            "has_402_challenge": true,
            "last_probe": "2026-08-29T22:00:00-04:00",
            "latency_ms": 87,
            "live": true,
            "status": 402
          },
          "latency_ms": 87,
          "live": true,
          "probed_at": "2026-08-29T22:00:00-04:00",
          "status": 402,
          "url": "https://example.com/x402/balance"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "anyOf": [
                {
                  "required": [
                    "need"
                  ]
                },
                {
                  "required": [
                    "url"
                  ]
                }
              ],
              "properties": {
                "need": {
                  "type": "string"
                },
                "require_route_binding": {
                  "description": "Opt in to a signed v4 route binding; implies require_transparency even if false. Default false; ordinary requests keep v3. A ranked winner that cannot bind may fall through to the next already-probed selectable bindable candidate; 503 route_binding_unavailable only when none remain. wrapExactAuthorize reports state=binding_unavailable with keep_calling_route true; policy working, not a crash. Buyer verifies raw response JSON with a pinned log key and compares the current seller request and challenge before signing. Expiry or changed terms do not undo a settled checking fee. Guide: https://402signal.com/developers#route-binding",
                  "type": "boolean"
                },
                "require_transparency": {
                  "description": "Require a durable leaf and signed checkpoint receipt on HTTP 200. Default false; require_route_binding=true also requires transparency. Receipt failure after settlement remains billed. Private replay records support bounded recovery of the original response; they are not long-term evidence storage. Keep your own copy outside public logs.",
                  "type": "boolean"
                },
                "url": {
                  "type": "string"
                }
              },
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "headers": {
              "additionalProperties": {
                "type": "string"
              },
              "type": "object"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "queryParams": {
              "additionalProperties": {
                "type": "string"
              },
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

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

null

Examples

curl

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

JavaScript

const res = await fetch("https://402signal.com/route");
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://402signal.com/route")
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: 402signal.com
Endpoint: https://402signal.com/route
Machine-readable: /resources/6820.json