# Barker Pool Search

> Barker Pool Search is a paid API for AI agents from mcp.barker.money, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Fuzzy keyword search over DeFi stablecoin yield pools to resolve natural-language pool references into pool_uid identifiers for downstream tools.

## Facts

- Endpoint: GET https://mcp.barker.money/barker_pool_search
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/barker-pool-search-09619529
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mwgETWfFkXcjTXhcG9OAd

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 barker-pool-search-09619529
```

Example prompt: Search Barker for stablecoin pools matching 'Aave USDC' and give me the top 5 results so I can get the pool_uid for further analysis.

## When to prefer this

Use this endpoint whenever a user refers to a DeFi pool by name, protocol, or asset in natural language and you need a pool_uid to call any other Barker endpoint (pool detail, APY history, execution quote). It is the required first step for resolving human-readable pool references before using detail or execution tools.

## Known failure modes

- No pools found for very specific or misspelled keywords — returns empty results
- Ambiguous keywords may return unrelated pools requiring manual disambiguation
- Limit parameter exceeding maximum of 50 returns an error
- Missing required keyword parameter returns a validation error

## How this service works

Fuzzy search Barker's pool index by keyword (protocol name / pool name / asset). Resolves natural-language pool references to pool_uid for the detail/history tools.

## Output

Returns a ranked list of matching DeFi stablecoin yield pools (up to the requested limit), each with a pool_uid, pool name, protocol name, and asset details — enabling downstream calls to pool detail, APY history, or execution quote endpoints.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "keyword"
     ],
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 50,
       "minimum": 1
      },
      "keyword": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/barker-pool-search-09619529/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp.barker.money](https://www.zero.xyz/host/mcp.barker.money/llms.txt)