# x402 Server Directory Search

> x402 Server Directory Search is a paid API for AI agents from x402-secure-api.t54.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Browse and search a paginated, filterable directory of x402-protocol servers with validation status and scoring

## Facts

- Endpoint: POST https://x402-secure-api.t54.ai/x402/tools/get_available_resources
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-secure-api-t54-ai-a95e46a2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CUYV42PUXkDpqEaZcIJJt

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-secure-api-t54-ai-a95e46a2 -d '<json body>'
```

Example prompt: Search the x402 server directory for active finance-related APIs that have payment addresses, sorted by overall score descending, showing 10 results per page from the bazaar source.

## When to prefer this

Use this endpoint when you need to discover, search, or catalog x402-protocol servers — especially when filtering by validation status, payment address presence, or ranking by quality score. Prefer this over manual web searches when building integrations that need programmatic access to a structured, scored directory of x402 services from official (bazaar) or community (x402scan) sources.

## Known failure modes

- Payment required (402) if X-PAYMENT header is missing or invalid
- Empty results array if no servers match the search query or filters
- Invalid source value returns error or empty results
- Page number out of range returns empty results or error
- Invalid order_by field may cause a 400 error

## How this service works

Browse searchable directory of x402 servers with pagination, filtering, and sorting. Discover services, check validation status, and build server catalogs for integration. Price: $0.01 USDC per page

## Output

Returns a paginated list of x402 servers with total count, page metadata (page number, page size, total pages, has_next flag), and an array of resource entries including names, URLs, validation status, and scores.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "q": {
   "type": "string"
  },
  "page": {
   "type": "number",
   "description": "Page number (default: 1)"
  },
  "source": {
   "enum": [
    "bazaar",
    "x402scan"
   ],
   "type": "string"
  },
  "status": {
   "enum": [
    "active",
    "inactive",
    "unknown"
   ],
   "type": "string"
  },
  "order_by": {
   "enum": [
    "created_at",
    "last_validated",
    "name"
   ],
   "type": "string"
  },
  "has_payto": {
   "type": "boolean"
  },
  "order_dir": {
   "enum": [
    "asc",
    "desc"
   ],
   "type": "string"
  },
  "page_size": {
   "type": "number",
   "description": "Items per page (default: 50, max: 100)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "page": "number",
 "total": "number",
 "has_next": "boolean",
 "page_size": "number",
 "resources": "array",
 "total_pages": "number"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-secure-api-t54-ai-a95e46a2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-secure-api.t54.ai](https://www.zero.xyz/host/x402-secure-api.t54.ai/llms.txt)