P0 x402 Market Index

Name: P0 x402 Market Index
Price: 0.008 USDC
Availability: InStock

Use when an agent needs the top x402 services tagged 'free'. Returns Retired route /in-free: now serves the live /in-x402 ranking, the top 25 x402 services tagged 'x402' by 30-day unique paying wallets.

TradingLiveeip155:8453Exactvia facilitator:payAI

https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free

x402BazaarRankFreeMarket-data

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 16 snapshots so far.

$5.61

Verified settled volume

458 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0080

Listed price

As published in the catalog. Always read the live 402 before paying.

—

Calls · 30d

Upstream's own call count for this endpoint, not ours.

—

Unique payers · 30d

Never called

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xECa891e34b3E5873181Fb779672564E198C55354

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment Required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xECa891e34b3E5873181Fb779672564E198C55354",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free",
      "description": "Use when an agent needs the top x402 services tagged 'free'. Returns Retired route /in-free: now serves the live /in-x402 ranking, the top 25 x402 services tagged 'x402' by 30-day unique paying wallets.",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {},
          "discoverable": true
        },
        "output": {
          "type": "object",
          "required": [
            "generatedAt",
            "data"
          ],
          "properties": {
            "data": {
              "type": "string"
            },
            "generatedAt": {
              "type": "string"
            }
          }
        }
      },
      "maxAmountRequired": "8000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free",
    "tags": [
      "x402",
      "bazaar",
      "rank",
      "free",
      "market-data"
    ],
    "type": "http",
    "method": "GET",
    "iconUrl": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/icon.png",
    "mimeType": "application/json",
    "description": "Use when an agent needs the top x402 services tagged 'free'. Returns Retired route /in-free: now serves the live /in-x402 ranking, the top 25 x402 services tagged 'x402' by 30-day unique paying wallets.",
    "serviceName": "P0 x402 Market Index"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {}
        },
        "output": {
          "type": "json",
          "example": {
            "data": "see the route description",
            "generatedAt": "2026-09-17T12:00:00.000Z"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {}
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type",
              "example"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "generatedAt",
                  "data"
                ],
                "properties": {
                  "data": {
                    "type": "string"
                  },
                  "generatedAt": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      },
      "discoverable": true
    }
  },
  "x402Version": 1,
  "already_paid": "Already transferred the price to payTo without a payment header? Call this same route again within 30 minutes and it serves the data (one transfer, one response). Matched this way: USDC, USDT or DAI on Base only; other transfers are never matched automatically: claim them with ?tx=<hash> (on /pay/check use ?payment_tx=<hash> instead, since its tx is the transaction being checked) on Base, Ethereum, Arbitrum or Polygon (USDC, USDT, DAI, WETH, cbBTC, WBTC, USDT0 where that chain has the token, or native ETH/POL), ?btc=<txid> (BTC), ?sol=<signature> (SOL, USDC, USDT), ?tron=<txid> (TRX, USDT TRC-20) or ?stx=<txid> (STX, sBTC); a direct transfer on any other chain, or of a token not named here, cannot be claimed — see other_assets.",
  "other_assets": {
    "evm": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free?tx=<0x hash>[&chain=base|ethereum|arbitrum|polygon]  (USDC, USDT, DAI, WETH, WBTC/cbBTC or the chain's native coin; the chain hint is optional — all four are searched)",
    "note": "Stablecoins are processed at face value; volatile crypto assets are automatically priced using Coinbase spot rates at the exact time of block confirmation.",
    "tron": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free?tron=<txid>  (USDT TRC20 or TRX, to TB9rHqT8yLxwdsWCb3zN2nvjc8wLhsUdaQ)",
    "solana": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free?sol=<signature>  (SOL, USDC or USDT, to FTbVqWwsfJJ5AuAwNDuCuzdpwCEJahu14HAUgAYcJHuq; native SOL at least 0.00065024 SOL so the transfer creates the account; claim within 2 days)",
    "stacks": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free?stx=<txid>  (STX or sBTC, to SP34GH04YTB01AMXF4CAQ10Y5B7G4E0119N99W986)",
    "bitcoin": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free?btc=<txid>  (to bc1qqwgyyqv6raq2jnghals2n2aujgwd4e9p64g4hr)"
  },
  "weekly_report": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/join",
  "free_alternative": "/sample",
  "pay_with_tx_hash": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free?tx=<your transaction hash>",
  "pay_without_x402": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/pay"
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.008USDC≈ $0.008 USD

on Base · exact scheme

Pay 0.008 USDC on Base to 0xECa8…55354. The signed payment is good for 5 minutes.

Paid to: 0xECa8…55354
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 8000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "bazaar": {
        "tags": [
          "x402",
          "bazaar",
          "rank",
          "free",
          "market-data"
        ],
        "category": "market-data",
        "serviceName": "P0 x402 Market Index"
      },
      "version": "2"
    },
    "payTo": "0xECa891e34b3E5873181Fb779672564E198C55354",
    "amount": "8000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "data": "see the route description",
          "generatedAt": "2026-09-17T12:00:00.000Z"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type",
            "example"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "generatedAt",
                "data"
              ],
              "properties": {
                "data": {
                  "type": "string"
                },
                "generatedAt": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "discoverable": true
  }
}

Provenance

Seen in the source catalog: 2026-10-19 19:23Z
Last indexed by Roundhouse: 2026-10-26 21:16Z
Last enriched (probe, favicon, geo): 2026-10-20 01:45Z
x402 version: 2
Max timeout: 300s
Liveness probe: HTTP 402

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 16 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service P0 x402 Market Index and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=P0%20x402%20Market%20Index'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.