# Oblique Markets Wikipedia Web Search

> Oblique Markets Wikipedia Web Search is a paid API for AI agents from api.oblique.markets, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Performs a Wikipedia-indexed web search and returns ranked title, URL, and snippet results with pagination support for AI agents.

## Facts

- Endpoint: POST https://api.oblique.markets/api/v1/paid/web-search
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/oblique-markets-wikipedia-web-search-e695d813
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cMfv_o51ztDNpWamMKko0

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 oblique-markets-wikipedia-web-search-e695d813 -d '<json body>'
```

Example prompt: Search Wikipedia for 'quantum entanglement' and give me the top 5 results with titles and snippets — start from the beginning.

## When to prefer this

Choose this endpoint when your agent needs free-text web search grounded in the Wikipedia knowledge base — ideal for factual lookups, encyclopedic background research, or when you need paginated, ranked results with snippets. Prefer this over general web search APIs when the target content is encyclopedic or when you want a bounded, predictable result set. It is cost-effective at $0.01 per call and integrates natively with x402 payment rails.

## Known failure modes

- Empty results if the query matches no Wikipedia entries
- Rate limiting or payment failure if USDC balance is insufficient
- Malformed request if query is missing or offset/limit are invalid types
- Partial or truncated snippets for very long Wikipedia articles
- Stale results if the Wikipedia index has not been recently updated

## How this service works

Use when an agent needs web search. Returns Bounded web search for agents over a public encyclopedic reference index: ranked title, URL and snippet results with offset/limit paging and a total count. $0.01.

## Output

Returns a list of ranked search results from the Wikipedia index, each containing a page title, URL, and text snippet, along with a total result count and the current offset/limit for pagination.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer"
  },
  "query": {
   "type": "string"
  },
  "offset": {
   "type": "integer"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "query": "Ada Lovelace",
  "source": "Wikimedia Wikipedia public search",
  "bounded": true,
  "results": [
   {
    "url": "https://en.wikipedia.org/wiki/Ada_Lovelace",
    "title": "Ada Lovelace",
    "snippet": "English mathematician and writer."
   }
  ],
  "metadata": {
   "limit": 1,
   "total": 1,
   "offset": 0,
   "returned": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/oblique-markets-wikipedia-web-search-e695d813/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.oblique.markets](https://www.zero.xyz/host/api.oblique.markets/llms.txt)