# Wikipedia Article Lookup via Agent Tollgate Engine

> Wikipedia Article Lookup via Agent Tollgate Engine is a paid API for AI agents from skinwinking.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).

Fetches a Wikipedia article summary (title and extract) for a given topic or article title, paid per-call via x402 micropayment.

## Facts

- Endpoint: GET https://skinwinking.com/api/v1/data/wikipedia?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/wikipedia-article-lookup-via-agent-tollgate-engine-c27ead95
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dEcKUcaaNgvI348q9L8pS

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 wikipedia-article-lookup-via-agent-tollgate-engine-c27ead95
```

Example prompt: Can you pull the Wikipedia summary for 'Ethereum' in English so I can get a quick overview of what it is?

## When to prefer this

Choose this endpoint when an AI agent needs a quick, structured Wikipedia summary for a topic without scraping Wikipedia directly, and when micropayment-per-call billing via x402 (USDC on Base, Polygon, or Solana) is acceptable. Prefer it over raw web scraping when you want a clean title+extract JSON response without HTML parsing overhead. It's especially useful for grounding agent responses in encyclopedic factual context at minimal cost ($0.002 per call).

## Known failure modes

- Article not found for the given query — returns an error or empty result
- Ambiguous query matching multiple Wikipedia articles — may return the most prominent match or an error
- Unsupported language code — may fall back to English or return an error
- Payment failure over x402 — call not processed if USDC balance insufficient
- Rate or quota limits if many calls are made in rapid succession

## How this service works

50 pay-per-call tools for agents over x402 (USDC on Base, Polygon, Solana): crypto market data, token audits, indicators, swap routing, web extraction, DNS/WHOIS/email checks, FX, weather and AI text/image tools.

## Output

A JSON object containing the Wikipedia article's title and a plain-text extract (summary paragraph), e.g. {"title": "Bitcoin", "extract": "Bitcoin is the first decentralized cryptocurrency..."}. The extract is typically a few sentences to a paragraph of encyclopedic content.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "Topic or article title"
      },
      "lang": {
       "type": "string",
       "description": "Language code, default en"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "title": "Bitcoin",
  "extract": "Bitcoin is the first decentralized cryptocurrency..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/wikipedia-article-lookup-via-agent-tollgate-engine-c27ead95/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from skinwinking.com](https://www.zero.xyz/host/skinwinking.com/llms.txt)