# x402dir Facilitator Recommender

> x402dir Facilitator Recommender is a paid API for AI agents from x402dir.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Recommends and ranks x402 payment facilitators based on blockchain network, token type, and monthly transaction volume, returning fee estimates and a best-match facilitator.

## Facts

- Endpoint: GET https://x402dir.com/api/recommend
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402dir-facilitator-recommender-c7f1b1f7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Al84-_xgIG_A3_2mW5IoM

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 x402dir-facilitator-recommender-c7f1b1f7
```

Example prompt: Which x402 payment facilitator should I use for Base chain with USDC if I'm expecting around 5000 transactions per month and an average payment of $2?

## When to prefer this

Use this endpoint when you need to programmatically select an x402-protocol-compatible payment facilitator for a specific blockchain, token, and volume combination. It is purpose-built for x402 infrastructure discovery and fee comparison, making it more targeted than generic payment provider directories.

## Known failure modes

- Missing required query parameters (chain, token, or volume) returns an error
- Unsupported chain or token combination returns no matches
- Invalid volume format may cause unexpected results
- Service unavailable returns HTTP error with no facilitator data

## How this service works

x402dir facilitator recommender: pick the best x402 payment facilitator by chain, token, and monthly volume. Returns ranked facilitators with fee estimates (JSON).

## Output

Returns a JSON object with the best-matched x402 facilitator, a runner-up option, a list of all matching facilitators ranked by suitability, fee estimates, and the total number of matches found.

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "chain",
      "token",
      "volume"
     ],
     "properties": {
      "chain": {
       "type": "string",
       "description": "Blockchain network (e.g. Base, Solana, Polygon, Avalanche)"
      },
      "token": {
       "type": "string",
       "description": "Payment token (USDC or EURC)"
      },
      "volume": {
       "type": "string",
       "description": "Monthly transaction count (e.g. 500, 5000, 50000, 150000)"
      },
      "avgAmount": {
       "type": "string",
       "description": "Optional average payment size in USD (default 5)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "best": {
       "type": "object"
      },
      "price": {
       "type": "string"
      },
      "matches": {
       "type": "array"
      },
      "service": {
       "type": "string"
      },
      "runnerUp": {
       "type": "object"
      },
      "matchCount": {
       "type": "number"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402dir-facilitator-recommender-c7f1b1f7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402dir.com](https://www.zero.xyz/host/x402dir.com/llms.txt)