Roundhouse AI

clanker-banker.agentfetcher.workers.dev

Clanker Banker is an x402 API for AI agents (not a crypto token). Free /v1/resolve paywall co-pilot. Paid llm-pack $0.005, clean $0.002, extract $0.01 USDC on Base. @xClankerBanker

SearchLiveeip155:8453Exactvia cdp
https://clanker-banker.agentfetcher.workers.dev/v1/llm-pack
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 29 snapshots so far.
$0.27
Verified settled volume
25 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-12 23:55Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x4d31e7587179e202621169529effc69b7d48597b

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.

{
  "code": "PAYMENT_REQUIRED",
  "x402": {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x4d31e7587179e202621169529effc69b7d48597b",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://clanker-banker.agentfetcher.workers.dev/v1/llm-pack",
      "mimeType": "application/json",
      "description": "x402 probe surface for llm-pack. Real usage: POST JSON {url, maxTokens?}. Unpaid GET/POST → 402 with PAYMENT-REQUIRED. Supports optional X-Clanker-Bid-Usd."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "url": "https://example.com",
              "noCache": false,
              "maxTokens": 4000
            },
            "type": "http",
            "method": "GET",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "title": "Example Domain",
              "usage": "Paste markdown into your model context.",
              "markdown": "# Example Domain\n\nSource: https://example.com\n\n...",
              "truncated": false,
              "approxTokens": 120
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "required": [
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string",
                      "description": "Public URL to convert into token-budgeted LLM-ready markdown for model context / RAG"
                    },
                    "noCache": {
                      "type": "boolean",
                      "description": "Skip cache and re-fetch the page"
                    },
                    "maxTokens": {
                      "type": "number",
                      "description": "Token budget for packed markdown (500–32000, default 4000)"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  "error": "Payment required (x402 USDC on Base)",
  "quote": {
    "tool": "llm-pack",
    "price": "$0.005",
    "traffic": {
      "band": "shoulder",
      "hourUtc": 22
    },
    "listPrice": "$0.005",
    "amountAtomic": "5000"
  },
  "nextStep": {
    "url": "https://clanker-banker.agentfetcher.workers.dev/v1/llm-pack",
    "why": "Pay $0.005 USDC on Base, retry with PAYMENT-SIGNATURE, then use response.markdown. Unpaid requests do not fetch the target URL.",
    "body": {
      "url": "https://example.com",
      "maxTokens": 4000
    },
    "path": "/v1/llm-pack",
    "price": "$0.005",
    "action": "pay_x402_then_retry",
    "method": "POST",
    "settle": {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0x4d31e7587179e202621169529effc69b7d48597b",
      "client": "https://clanker-banker.agentfetcher.workers.dev/install/client.mjs",
      "network": "eip155:8453",
      "protocol": "x402"
    },
    "headers": {
      "optional": {
        "X-Clanker-Bid-Usd": "0",
        "X-Clanker-Max-Usd": "0.0100"
      },
      "required": {
        "Content-Type": "application/json"
      },
      "afterPayment": {
        "PAYMENT-SIGNATURE": "<signed x402 proof for amountAtomic>"
      }
    },
    "listPrice": "$0.005",
    "amountAtomic": "5000"
  },
  "freeProof": {
    "note": "No free live preview. The x402 accepts[] challenge is the offer.",
    "ofTargetUrl": false
  },
  "agentAction": {
    "asset": "USDC",
    "retry": {
      "url": "https://clanker-banker.agentfetcher.workers.dev/v1/llm-pack",
      "body": {
        "url": "https://example.com",
        "maxTokens": 4000
      },
      "method": "POST",
      "headers": {
        "Content-Type": "application/json",
        "PAYMENT-SIGNATURE": "<sign x402 exact amountAtomic on Base USDC>",
        "X-Clanker-Max-Usd": "0.0200"
      }
    },
    "action": "SETTLE_X402_AND_RETRY",
    "client": {
      "env": [
        "BUYER_PRIVATE_KEY",
        "CLANKER_MAX_USD=0.05",
        "CLANKER_BASE=https://clanker-banker.agentfetcher.workers.dev"
      ],
      "ready": "https://clanker-banker.agentfetcher.workers.dev/install/client.mjs",
      "oneLiner": "curl -s https://clanker-banker.agentfetcher.workers.dev/install/client.mjs -o client.mjs && npm i @x402/fetch @x402/evm viem && set BUYER_PRIVATE_KEY=0x… && node client.mjs https://example.com"
    },
    "expect": {
      "status": 200,
      "useField": "markdown"
    },
    "abortIf": [
      "Your spend cap < $0.005 (raise X-Clanker-Max-Usd / CLANKER_MAX_USD)",
      "No USDC on Base in the buyer wallet",
      "Missing BUYER_PRIVATE_KEY for x402 client"
    ],
    "costUsd": "$0.005",
    "network": "eip155:8453",
    "priority": 1,
    "amountAtomic": "5000"
  },
  "agentDecision": {
    "reason": "Settle $0.005 now, retry the same request. Probe is optional — pack is the primary SKU.",
    "shouldPay": true
  }
}

Accepts

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

0.005USDC≈ $0.005 USD
on Base · exact scheme

Pay 0.005 USDC on Base to 0x4d31…8597b. The signed payment is good for 5 minutes.

Paid to
0x4d31…8597b
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x4d31e7587179e202621169529effc69b7d48597b",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "url": "https://example.com",
          "noCache": false,
          "maxTokens": 4000
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "title": "Example Domain",
          "usage": "Paste markdown into your model context.",
          "markdown": "# Example Domain\n\nSource: https://example.com\n\n...",
          "truncated": false,
          "approxTokens": 120
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "required": [
                "url"
              ],
              "properties": {
                "url": {
                  "type": "string",
                  "description": "Public URL to convert into token-budgeted LLM-ready markdown for model context / RAG"
                },
                "noCache": {
                  "type": "boolean",
                  "description": "Skip cache and re-fetch the page"
                },
                "maxTokens": {
                  "type": "number",
                  "description": "Token budget for packed markdown (500–32000, default 4000)"
                }
              }
            },
            "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"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-12 23:55Z
Last indexed by Roundhouse
2026-09-12 00:01Z
Last enriched (probe, favicon, geo)
2026-09-12 22:45Z
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. 29 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 clanker-banker.agentfetcher.workers.dev 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=clanker-banker.agentfetcher.workers.dev'
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://clanker-banker.agentfetcher.workers.dev/v1/llm-pack, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

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