AIMarket

HISTOR pre-flight for an MCP server: its signed record in the HISTOR transparency log — when the tool set was first seen, whether it changed, what the pattern scan found. Never contacts the server asked about.

InferenceLiveeip155:8453Exactvia cdp
McpSecurityTransparency-logTrust
Calls · 30d
12↑ 91%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$0.51
Verified settled volume
63 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
14
Calls · 30d
Upstream's own call count for this endpoint, not ours.
13
Unique payers · 30d
Last called 2026-10-27 10:09Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x1218ff36C5d2e3B6A565CdB1A8B1AcCFc606Ad0a

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

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonAIMarket HubERC-8004

Accepts

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

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0x1218…6Ad0a. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x1218ff36C5d2e3B6A565CdB1A8B1AcCFc606Ad0a",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "endpoint": "https://mcp.redu.cloud/mcp"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "schema": {
          "type": "object",
          "required": [
            "status",
            "service",
            "source",
            "check"
          ],
          "properties": {
            "check": {
              "type": "object",
              "required": [
                "type",
                "checkedAt",
                "match"
              ],
              "properties": {
                "log": {
                  "type": "object",
                  "description": "the signed tree head the answer was given under"
                },
                "note": {
                  "type": "string"
                },
                "type": {
                  "type": "string",
                  "const": "histor.check/v1"
                },
                "match": {
                  "enum": [
                    "same",
                    "different",
                    "previously-observed",
                    "not-observed",
                    "not-listed",
                    "no-digest"
                  ],
                  "type": "string"
                },
                "query": {
                  "type": "object"
                },
                "issuer": {
                  "type": "string",
                  "description": "did:key of the log"
                },
                "target": {
                  "type": [
                    "object",
                    "null"
                  ],
                  "description": "the server HISTOR knows by this endpoint or name"
                },
                "observed": {
                  "type": [
                    "object",
                    "null"
                  ],
                  "description": "HISTOR's latest observation of its tool set"
                },
                "checkedAt": {
                  "type": "string",
                  "description": "ISO 8601 UTC"
                },
                "signature": {
                  "type": "object"
                },
                "patternScan": {
                  "type": "object",
                  "properties": {
                    "status": {
                      "type": "string"
                    }
                  }
                }
              },
              "description": "HISTOR's signed answer, histor.check/v1 (https://github.com/alexar76/histor/blob/main/docs/api.md)"
            },
            "source": {
              "type": "string",
              "description": "the HISTOR instance that answered"
            },
            "status": {
              "type": "string",
              "const": "ok"
            },
            "service": {
              "type": "string",
              "const": "histor-check"
            }
          }
        },
        "example": {
          "check": {
            "type": "histor.check/v1",
            "match": "no-digest",
            "target": {
              "name": "cloud.redu/mcp"
            },
            "checkedAt": "2026-10-25T18:18:52Z"
          },
          "source": "https://histor.modelmarket.dev",
          "status": "ok",
          "service": "histor-check"
        }
      }
    },
    "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": {
              "type": "object",
              "properties": {
                "name": {
                  "type": "string",
                  "description": "registry name, e.g. io.github.owner/server (send this or endpoint)"
                },
                "endpoint": {
                  "type": "string",
                  "description": "https URL of the MCP server (send this or name)"
                }
              }
            },
            "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",
              "required": [
                "status",
                "service",
                "source",
                "check"
              ],
              "properties": {
                "check": {
                  "type": "object",
                  "required": [
                    "type",
                    "checkedAt",
                    "match"
                  ],
                  "properties": {
                    "log": {
                      "type": "object",
                      "description": "the signed tree head the answer was given under"
                    },
                    "note": {
                      "type": "string"
                    },
                    "type": {
                      "type": "string",
                      "const": "histor.check/v1"
                    },
                    "match": {
                      "enum": [
                        "same",
                        "different",
                        "previously-observed",
                        "not-observed",
                        "not-listed",
                        "no-digest"
                      ],
                      "type": "string"
                    },
                    "query": {
                      "type": "object"
                    },
                    "issuer": {
                      "type": "string",
                      "description": "did:key of the log"
                    },
                    "target": {
                      "type": [
                        "object",
                        "null"
                      ],
                      "description": "the server HISTOR knows by this endpoint or name"
                    },
                    "observed": {
                      "type": [
                        "object",
                        "null"
                      ],
                      "description": "HISTOR's latest observation of its tool set"
                    },
                    "checkedAt": {
                      "type": "string",
                      "description": "ISO 8601 UTC"
                    },
                    "signature": {
                      "type": "object"
                    },
                    "patternScan": {
                      "type": "object",
                      "properties": {
                        "status": {
                          "type": "string"
                        }
                      }
                    }
                  },
                  "description": "HISTOR's signed answer, histor.check/v1 (https://github.com/alexar76/histor/blob/main/docs/api.md)"
                },
                "source": {
                  "type": "string",
                  "description": "the HISTOR instance that answered"
                },
                "status": {
                  "type": "string",
                  "const": "ok"
                },
                "service": {
                  "type": "string",
                  "const": "histor-check"
                }
              }
            }
          }
        }
      }
    }
  },
  "builder-code": {
    "info": {
      "s": [
        "cdp_sdk_server"
      ]
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "maxItems": 11,
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  },
  "eip2612GasSponsoring": {},
  "erc20ApprovalGasSponsoring": {}
}

Provenance

Seen in the source catalog
2026-10-27 10:09Z
Last indexed by Roundhouse
2026-10-29 01:30Z
Last enriched (probe, favicon, geo)
2026-10-02 05:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 404
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. 32 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 AIMarket 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=AIMarket'
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://modelmarket.dev/x402/histor-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.