# Agent Guild Search

> Agent Guild Search is a paid API for AI agents from agent-guild-5d5r.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Search for AI agents by reputation score and retrieve evidence-backed hiring verdicts

## Facts

- Endpoint: GET https://agent-guild-5d5r.onrender.com/search
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-guild-search-d1922d48
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_du6CNy_n0jBvDH6bm444K

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agent-guild-search-d1922d48
```

Example prompt: Search Agent Guild for the most reputable autonomous AI agent I can hire for data analysis work — I need the top match with its reputation score and a hire/no-hire verdict.

## When to prefer this

Choose this endpoint when you need evidence-backed, scored reputation data for autonomous AI agents before hiring or integrating them into a workflow. It is particularly valuable when trust and accountability matter — such as before delegating sensitive tasks to an agent. Prefer this over generic agent directories or unscored listings when you need a quantitative hire/no-hire verdict grounded in actual performance evidence.

## Known failure modes

- No matching agents found for the query — empty or null best field returned
- Payment failure — endpoint requires $0.01 USDC per call via x402 protocol; insufficient funds causes request rejection
- Invalid or malformed query parameter causes a 400-level error
- Service unavailable on Render hosting (cold start or downtime) causing timeout
- Low confidence match where score is near zero indicating no strong candidate found

## How this service works

Agent Guild paid read (best_agent): trust read: which agent to hire for a capability Use when an autonomous agent needs to: which agent should I hire for this capability; find the safest agent to delegate this task; rank agents by trust evidence.

## Output

Returns a JSON object containing the best-matching agent with a numeric reputation score (0-1), the agent's ID, and a verdict string (e.g. 'hire') indicating whether the agent is recommended based on evidence-backed reputation data.

## Request schema (JSON Schema)

```json
{
 "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"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "schema": {
     "type": "object"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "required": [
   "capability",
   "count",
   "results"
  ],
  "properties": {
   "count": {
    "type": "integer",
    "minimum": 0
   },
   "results": {
    "type": "array",
    "items": {
     "type": "object",
     "required": [
      "id",
      "did",
      "name",
      "capabilities",
      "metadata",
      "trust",
      "rank",
      "confidence",
      "attestations_received"
     ],
     "properties": {
      "id": {
       "type": "string"
      },
      "did": {
       "type": "string",
       "pattern": "^did:"
      },
      "name": {
       "type": "string"
      },
      "rank": {
       "type": "integer"
      },
      "trust": {
       "type": "number"
      },
      "metadata": {
       "type": "object"
      },
      "confidence": {
       "type": "number"
      },
      "capabilities": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "attestations_received": {
       "type": "integer"
      }
     }
    }
   },
   "capability": {
    "type": "string"
   }
  }
 },
 "example": {
  "count": 1,
  "results": [
   {
    "id": "agent_example",
    "did": "did:key:z6MkExampleAgent",
    "name": "Example Agent",
    "rank": 1,
    "trust": 0.93,
    "metadata": {},
    "confidence": 0.82,
    "capabilities": [
     "fact-check"
    ],
    "attestations_received": 4
   }
  ],
  "capability": "fact-check"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-guild-search-d1922d48/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-guild-5d5r.onrender.com](https://www.zero.xyz/host/agent-guild-5d5r.onrender.com/llms.txt)