# x402 Resource Summary

> x402 Resource Summary is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Summarizes a server's .well-known/x402 resources, pricing surface, supported networks, and available paths from its x402 discovery endpoint.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/resource-summary
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-delx-ai-a16b3646
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ukMr2-MVmOxwHXDznRMv1

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 api-delx-ai-a16b3646 -d '<json body>'
```

Example prompt: Can you pull up a summary of the x402 payment surface for api.example.com — what paths it exposes, what networks it supports, and what it charges?

## When to prefer this

Use this endpoint when an agent needs to understand what x402-enabled resources a server exposes before attempting to call or pay for them — particularly useful for dynamic x402 discovery, pricing checks, or building payment-aware routing logic. Prefer this over manual .well-known fetching when you want a structured, agent-readable summary rather than raw JSON.

## Known failure modes

- Target server does not have a .well-known/x402 endpoint — returns empty or error response
- Server is unreachable or returns non-200 status — fetch failure
- Malformed or non-standard x402 document — partial or unparseable summary
- Invalid or missing host URL input — validation error
- Rate limit or payment failure — 402 or 429 response

## How this service works

Read any server's x402 resources, payment networks, and canonical paths for $0.001 USDC. One single-fetch structured result, no API key.

## Output

A structured summary of the target server's .well-known/x402 discovery document, including available resource paths, pricing tiers, supported blockchain networks, and payment metadata — giving an agent a compact overview of what the server offers under the x402 protocol.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string"
  },
  "timeout": {
   "type": "integer",
   "maximum": 15,
   "minimum": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "status": 200,
   "networks": [
    "base"
   ],
   "resources": [
    {
     "networks": [
      "base"
     ],
     "resource": "https://api.delx.ai/api/v1/x402/page-extract",
     "tool_name": "util_page_extract"
    }
   ],
   "resource_count": 20
  },
  "tool_name": "util_x402_resource_summary"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-delx-ai-a16b3646/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)