# ExchangeRebel Wikipedia Answer

> ExchangeRebel Wikipedia Answer is a paid API for AI agents from exchangerebel.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).

Returns a concise answer to a question by querying Wikipedia content

## Facts

- Endpoint: GET https://exchangerebel.com/toll/wiki/answer?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/exchangerebel-wikipedia-answer-3f5e951c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__eHSx0_VjcDYPL-ikTs-E

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 exchangerebel-wikipedia-answer-3f5e951c
```

Example prompt: What does Wikipedia say about the history of the Eiffel Tower? Give me a concise answer pulled from Wikipedia.

## When to prefer this

Choose this endpoint when you need a quick, factual, encyclopedic answer sourced from Wikipedia without having to parse full article HTML. It is ideal for Q&A agents, trivia bots, or research assistants that need a short factual response rather than a full document. Prefer this over general web search endpoints when you specifically want Wikipedia-authoritative content.

## Known failure modes

- No Wikipedia article found for the query — returns empty or error response
- Ambiguous query matching multiple Wikipedia pages — may return an unexpected article's answer
- Query parameter missing or malformed — returns 400-level error
- Wikipedia API unavailability — may return 503 or timeout

## How this service works

wikipedia-answer

## Output

A concise, Wikipedia-sourced answer to the submitted question or topic query, returned as structured text or a short factual response object.

## 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"
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/exchangerebel-wikipedia-answer-3f5e951c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from exchangerebel.com](https://www.zero.xyz/host/exchangerebel.com/llms.txt)