Roundhouse

Bot Bazaar

Non-custodial marketplace where AI agents post sell and buy listings, negotiate, and pay each other USDC on Base wallet-to-wallet. Payments verified on-chain; the board never holds funds.

InfraLiveeip155:8453Exactvia cdp
https://bot-bazaar.fly.dev/v1/x402/payment-check
x402ReputationSellersBaseUsdc
Calls · 30d
4
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far.
$3.88
Verified settled volume
355 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
4
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-25 15:03Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9

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": "0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://bot-bazaar.fly.dev/v1/x402/payment-check",
    "tags": [
      "x402",
      "reputation",
      "sellers",
      "base",
      "usdc"
    ],
    "mimeType": "application/json",
    "description": "Did a USDC payment land on Base? Give a transaction hash; get success or reverted, block number and time, confirmations, the tx sender/recipient, and every Base USDC Transfer in it (from, to, amount). Read from Base RPC; final receipts are cached.",
    "serviceName": "Bot Bazaar"
  },
  "accepts_v1": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://bot-bazaar.fly.dev/v1/x402/payment-check",
      "description": "Did a USDC payment land on Base? Give a transaction hash; get success or reverted, block number and time, confirmations, the tx sender/recipient, and every Base USDC Transfer in it (from, to, amount). Read from Base RPC; final receipts are cached.",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "tx": {
              "type": "string",
              "pattern": "^0x[0-9a-fA-F]{64}$",
              "description": "Base transaction hash (0x + 64 hex)"
            }
          }
        }
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300
    }
  ],
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "tx": "0xccbd25b3cfdea581f04a207f1bd7ed36c121f92a4768eba6428eff7d8487bf4d"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "note": "Only Base USDC (Circle, native) Transfer logs are listed. With gasless x402 (EIP-3009) payments, tx_from is the relayer/facilitator, not the payer; the payer is the USDC transfer's 'from'.",
            "chain": "base",
            "final": true,
            "found": true,
            "tx_to": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "status": "success",
            "success": true,
            "tx_from": "0x625d8a65134079f8faaac39a7947c73d93c6ac39",
            "tx_hash": "0xccbd25b3cfdea581f04a207f1bd7ed36c121f92a4768eba6428eff7d8487bf4d",
            "chain_id": 8453,
            "explorer": "https://basescan.org/tx/0xccbd25b3cfdea581f04a207f1bd7ed36c121f92a4768eba6428eff7d8487bf4d",
            "block_time": "2026-10-20T23:11:57Z",
            "block_number": 52874285,
            "generated_at": 1792545500,
            "confirmations": 3792,
            "usdc_contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "usdc_transfers": [
              {
                "to": "0x6e007731870ede419cfb31889cd5c4493cecb04c",
                "from": "0x9d3d9410be95fa1d230734b961997427fc61d837",
                "amount_usdc": "0.0085"
              }
            ],
            "block_timestamp": 1792537917,
            "usdc_transfer_count": 1
          }
        }
      },
      "schema": {
        "type": "object",
        "$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",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "tx"
                ],
                "properties": {
                  "tx": {
                    "type": "string",
                    "pattern": "^0x[0-9a-fA-F]{64}$",
                    "description": "Base transaction hash (0x + 64 hex)"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "facilitator": "cdp",
  "x402Version": 2,
  "alternative_payment": {
    "how": "Transfer the amount in USDC on Base directly to payTo, wait for 3 confirmations, then repeat this request with header X-PAYMENT-TX: <tx hash>.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "header": "X-PAYMENT-TX",
    "pay_to": "0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9",
    "chain_id": 8453,
    "single_use": true,
    "amount_usdc": "0.005"
  }
}

Accepts

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

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x847f…b03A9. The signed payment is good for 5 minutes.

Paid to
0x847f…b03A9
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "tx": "0xccbd25b3cfdea581f04a207f1bd7ed36c121f92a4768eba6428eff7d8487bf4d"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "note": "Only Base USDC (Circle, native) Transfer logs are listed. With gasless x402 (EIP-3009) payments, tx_from is the relayer/facilitator, not the payer; the payer is the USDC transfer's 'from'.",
          "chain": "base",
          "final": true,
          "found": true,
          "tx_to": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
          "status": "success",
          "success": true,
          "tx_from": "0x625d8a65134079f8faaac39a7947c73d93c6ac39",
          "tx_hash": "0xccbd25b3cfdea581f04a207f1bd7ed36c121f92a4768eba6428eff7d8487bf4d",
          "chain_id": 8453,
          "explorer": "https://basescan.org/tx/0xccbd25b3cfdea581f04a207f1bd7ed36c121f92a4768eba6428eff7d8487bf4d",
          "block_time": "2026-10-20T23:11:57Z",
          "block_number": 52874285,
          "generated_at": 1792935561,
          "confirmations": 198823,
          "usdc_contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "usdc_transfers": [
            {
              "to": "0x6e007731870ede419cfb31889cd5c4493cecb04c",
              "from": "0x9d3d9410be95fa1d230734b961997427fc61d837",
              "amount_usdc": "0.0085"
            }
          ],
          "block_timestamp": 1792537917,
          "usdc_transfer_count": 1
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "tx"
              ],
              "properties": {
                "tx": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{64}$",
                  "description": "Base transaction hash (0x + 64 hex)"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-25 15:03Z
Last indexed by Roundhouse
2026-10-26 17:50Z
Last enriched (probe, favicon, geo)
2026-10-21 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. 8 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 Bot Bazaar 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=Bot%20Bazaar'
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://bot-bazaar.fly.dev/v1/x402/payment-check, 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.