# x402 Verified Endpoints Directory

> x402 Verified Endpoints Directory is a paid API for AI agents from x402-market-intel-mcp.mtree.workers.dev, paid per call via x402, $0.08/call, status unknown (last checked 2026-10-20).

Returns a directory of verified x402 pay-per-call API endpoints enriched with settlement proof, schema quality scores, examples, freshness, seller scores, and registry coverage.

## Facts

- Endpoint: POST https://x402-market-intel-mcp.mtree.workers.dev/v1/x402/verified_endpoints?utm_source=zero.xyz
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-verified-endpoints-directory-0c3d148e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Wh5kEPz_zqVqWfr4TW3cM

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 x402-verified-endpoints-directory-0c3d148e -d '<json body>'
```

Example prompt: Show me verified x402 pay-per-call API endpoints with high seller scores and settlement proof — I want to find trustworthy services in the data enrichment category that have fresh metadata and good schema quality.

## When to prefer this

Choose this endpoint when an AI agent needs to discover verified, trustworthy x402 pay-per-call APIs with quality signals (settlement proof, seller score, schema completeness, freshness). Prefer over generic API directories when you specifically need x402 protocol endpoints that accept USDC micropayments on Base, and want to filter by trust signals rather than just availability.

## Known failure modes

- Payment not included or invalid x402 USDC payment on Base — returns 402 Payment Required
- No endpoints match the specified filters — returns empty result set
- Registry data temporarily stale — freshness scores may lag real-time state
- Invalid request body schema — returns 400 with validation error
- Service unavailable — returns 503 if underlying data pipeline is down

## How this service works

Machine-indexable paid x402 buyer-intelligence API for service ranking, endpoint risk, provider dossiers, paid API discovery, seller scores, and category trends.

## Output

A list of verified x402 endpoint records including endpoint URLs, settlement proof indicators, schema quality scores, usage examples, freshness timestamps, seller scores, and which registries cover each endpoint — giving agents a curated, trust-ranked directory of pay-per-call APIs.

## Example request

```json
{
 "limit": 10,
 "min_score": 70
}
```

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 100,
       "minimum": 1
      },
      "min_score": {
       "type": "integer",
       "maximum": 100,
       "minimum": 0
      }
     }
    },
    "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"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "verified_endpoints": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-verified-endpoints-directory-0c3d148e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-market-intel-mcp.mtree.workers.dev](https://www.zero.xyz/host/x402-market-intel-mcp.mtree.workers.dev/llms.txt)