# FastX402 Wikipedia Summary

> FastX402 Wikipedia Summary is a paid API for AI agents from fastx402.tools, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-22).

Fetches a concise Wikipedia summary, description, and article URL for a given topic or article title

## Facts

- Endpoint: GET https://fastx402.tools/wikipedia-summary?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fastx402-wikipedia-summary-6618b10c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hOsXZiKBVPId-fU2qhkTi

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 fastx402-wikipedia-summary-6618b10c
```

Example prompt: Can you pull the Wikipedia summary for 'Cloudflare' — I want the title, a short description, and the article link?

## When to prefer this

Choose this endpoint when you need a fast, factual, encyclopedic summary of a well-known entity, concept, person, place, or company without requiring a full web search. Ideal for enriching structured data pipelines, adding background context to reports, or answering 'what is X' questions grounded in Wikipedia's content. Prefer over a general web search when you want a clean, structured response (title, description, extract, URL) rather than raw HTML or multiple search results.

## Known failure modes

- Topic not found on Wikipedia — returns empty or error response
- Ambiguous topic name resolves to wrong article — agent should use the exact Wikipedia article title
- Rate limiting or service unavailability — returns HTTP error
- Misspelled topic returns no result or unrelated article

## How this service works

200 pay-per-call tools for AI agents, from $0.001 per request in USDC on Base or Solana with x402. No account, no API key.

## Output

Returns a JSON object containing the Wikipedia article title, a plain-text extract (multi-sentence summary), a short one-line description of the subject, and the canonical Wikipedia article URL.

## 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": [
      "topic"
     ],
     "properties": {
      "topic": {
       "type": "string",
       "description": "Wikipedia article title or topic to look up, e.g. \"Cloudflare\""
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "url": {
       "type": "string"
      },
      "title": {
       "type": "string"
      },
      "extract": {
       "type": "string"
      },
      "description": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://en.wikipedia.org/wiki/Cloudflare",
  "title": "Cloudflare",
  "extract": "Cloudflare, Inc. is an American web infrastructure and security company that provides content delivery network services, DDoS mitigation, Internet security, and distributed domain name server services.",
  "description": "American web infrastructure and security company"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fastx402-wikipedia-summary-6618b10c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fastx402.tools](https://www.zero.xyz/host/fastx402.tools/llms.txt)