Name: wikipedia
Price: 0.005 USDC
Availability: InStock

$ man wikipedia

PRICE / CALL

$0.005

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

CATEGORY

STATUS

● live

NAME

wikipedia — wikipedia api / encyclopedia lookup

SYNOPSIS

POST https://x402.org/v1/wikipedia
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

Wikipedia API / encyclopedia lookup. Title, summary, image, sections, Wikidata id, optional 25k-char extract. 300+ languages.

INPUT — request schema

property	type	description	req?
query	string	Search term or article title (e.g. 'Albert Einstein', 'mitochondria'). Resolved via MediaWiki search to the best-matching page.	required
language	string	Wiki language code (e.g. 'en', 'de', 'ja', 'es'). Default 'en'.	optional
full_text	boolean	If true, include a plain-text extract of the full article body (truncated to ~25k chars). Default false.	optional

OUTPUT — response shape

field	type	description
title	string	Article title as it appears on Wikipedia.
canonical_url	string	Canonical Wikipedia URL for the article page.
page_id	string	Numeric MediaWiki page identifier as a string.
wikidata_item	string	Wikidata Q-identifier linked to the article (e.g. Q42).
language	string	Wiki language code the article was fetched from (e.g. en, de, ja).
summary	string	Short plain-text lead extract summarizing the article.
description	string	Short Wikidata-style descriptor (e.g. "American physicist").
type	string	Page type reported by Wikipedia (standard, disambiguation, redirect, etc.).
thumbnail_url	string	URL of the small thumbnail image for the article, if one exists.
image_url	string	URL of the full-resolution lead image for the article, if one exists.
coordinates	object	Geographic coordinates for the subject with lat and lon fields, if applicable.
sections	array	Ordered list of article section headings with anchors and nesting level.
full_text	string	Plain-text article body, capped at 25k characters when the extract flag is set.
full_text_truncated	boolean	True when full_text was cut off at the 25k-character limit.

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.org/v1/wikipedia \
  -H 'Content-Type: application/json' \
  -d '{ }'

first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.

EXAMPLE 2 · mcp

# install once
claude mcp add x402 --command "npx x402-deployer-mcp"

# then ask Claude Code:
# "use the wikipedia tool to ..."

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

ADJACENT — other endpoints in webprobe

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mcp-tools-list	MCP tools-list / Model Context Protocol discovery / list MCP server tools / tools/list JSON-RPC / agent capability discovery / MCP catalo…	$0.005
sitemap-fetch	Sitemap fetcher / sitemap.xml parser / sitemap index resolver / SEO sitemap reader / robots.txt sitemap discovery / website URL inventory.	$0.005
wikipedia-lookup	Wikipedia API / encyclopedia lookup / structured article fetch.	$0.005
homoglyph-check	Homoglyph attack detector / Unicode lookalike scanner.	$0.003

/wikipedia(1)