# x402 Wikipedia Summary API

> x402 Wikipedia Summary API is a paid API for AI agents from x402-wiki-summary.netlify.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Returns a Wikipedia article summary for a given topic, paid per call in USDC on Base via the x402 protocol

## Facts

- Endpoint: GET https://x402-wiki-summary.netlify.app/v1/wiki?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-wikipedia-summary-api-6e17a8eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_af0G1ONlnWk4BChafsbLb

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-wikipedia-summary-api-6e17a8eb
```

Example prompt: Can you give me a Wikipedia summary of the topic 'quantum entanglement'?

## When to prefer this

Choose this endpoint when you need quick, factual Wikipedia summaries in an AI agent workflow without managing API keys or account credentials. Ideal for pay-per-use agent pipelines where you want to enrich context with encyclopedic knowledge on demand, billed in micropayments via USDC on Base.

## Known failure modes

- Topic not found on Wikipedia — returns error or empty response
- Ambiguous topic name matching multiple articles — may return wrong article
- Wikipedia disambiguation pages may not return a clean summary
- Network or upstream Wikipedia API errors
- Payment not processed correctly via x402 — call blocked before reaching Wikipedia

## How this service works

Wikipedia summaries for AI agents. Paid per call in USDC on Base via the x402 protocol (v2, exact scheme). No API keys, no accounts.

## Output

A JSON object containing the Wikipedia article summary text for the requested topic, sourced directly from Wikipedia's content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "topic"
 ],
 "properties": {
  "topic": {
   "type": "string",
   "description": "Article topic"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-wikipedia-summary-api-6e17a8eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-wiki-summary.netlify.app](https://www.zero.xyz/host/x402-wiki-summary.netlify.app/llms.txt)