clearhouse

Search all indexed agent registries at once. Args: query: capability keywords, e.g. "pdf extraction", "solana rpc", "payments" remote_only: only return services callable over the network right now limit: max results (1-50)

{
  "type": "object",
  "properties": {
    "query": {
      "title": "Query",
      "type": "string"
    },
    "remote_only": {
      "default": false,
      "title": "Remote Only",
      "type": "boolean"
    },
    "limit": {
      "default": 10,
      "title": "Limit",
      "type": "integer"
    }
  },
  "required": [
    "query"
  ],
  "title": "search_agentsArguments"
}

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "search_agentsOutput"
}

Step 1 of a paid call (non-custodial). Fetches the service's payment requirements and returns the exact EIP-712 typed data your agent must sign with ITS OWN key. Nothing is charged until you sign and pass the result to call_service. If the service is free, says so. Args: listing_id: id from search_agents payer_address: your agent's wallet address (the key that will sign) args_json: JSON object of query args for the service

{
  "type": "object",
  "properties": {
    "listing_id": {
      "title": "Listing Id",
      "type": "integer"
    },
    "payer_address": {
      "title": "Payer Address",
      "type": "string"
    },
    "args_json": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "additionalProperties": true,
          "type": "object"
        }
      ],
      "default": "{}",
      "title": "Args Json"
    }
  },
  "required": [
    "listing_id",
    "payer_address"
  ],
  "title": "quote_callArguments"
}

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "quote_callOutput"
}

Call a listed remote service THROUGH Clearhouse and get a signed receipt. Routes the call via the matching protocol adapter (MCP / A2A / HTTP-x402), enforces spend caps, settles x402 paywalls (dry-run by default), and returns the result plus a cryptographically signed receipt binding intent -> execution -> settlement -> outcome. Args: listing_id: id from search_agents results tool: downstream tool name (omit to list the service's tools) args_json: JSON object of tool arguments caller_ref: opaque caller identifier for the receipt payment_json: for paid services — JSON {"authorization": typed_data.message, "signature": "0x..."} produced by signing quote_call's typed_data with your own key. Clearhouse relays it; it never sees your private key.

{
  "type": "object",
  "properties": {
    "listing_id": {
      "title": "Listing Id",
      "type": "integer"
    },
    "tool": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Tool"
    },
    "args_json": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "additionalProperties": true,
          "type": "object"
        }
      ],
      "default": "{}",
      "title": "Args Json"
    },
    "caller_ref": {
      "default": "mcp-client",
      "title": "Caller Ref",
      "type": "string"
    },
    "payment_json": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "additionalProperties": true,
          "type": "object"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Payment Json"
    }
  },
  "required": [
    "listing_id"
  ],
  "title": "call_serviceArguments"
}

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "call_serviceOutput"
}

Observed facts about a listing: live probe results (handshake, latency, HTTP status) and routed-call history (count, success rate, distinct callers). Includes an arithmetic summary_index with published methodology and a confidence tier. This is EVIDENCE for the caller's own decision — not a safety rating, and Clearhouse never selects or executes on your behalf.

{
  "type": "object",
  "properties": {
    "listing_id": {
      "title": "Listing Id",
      "type": "integer"
    }
  },
  "required": [
    "listing_id"
  ],
  "title": "service_evidenceArguments"
}

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "service_evidenceOutput"
}

How many listings Clearhouse currently indexes, broken down by source registry.

{
  "type": "object",
  "properties": {},
  "title": "index_statsArguments"
}

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "index_statsOutput"
}