{"id":"d9fd4e1b-a9f8-425f-a0c2-51b42c6c0664","shortId":"8xXSYu","kind":"x402","title":"Search Stack Overflow and StackExchange sites via x402 micropayment for $0.005 per query.","tagline":"Search Stack Overflow and StackExchange sites via x402 micropayment for $0.005 per query.","description":"The Scout Stack Overflow endpoint (`/scout/stackoverflow`) lets AI agents and applications search Stack Overflow and other StackExchange sites for Q&A content, paying $0.005 per call in USDC on Base via the x402 protocol. It returns questions with scores, answer counts, view counts, tags, and whether an accepted answer exists.\n\nThe endpoint accepts a required query string parameter `q` along with optional parameters for pagination (`per_page`, 1–50, default 10), sort order (`relevance`, `votes`, `activity`, `creation`), and target StackExchange site (defaults to `stackoverflow` but can be changed to any StackExchange community). This is one endpoint within the broader Scout multi-source intelligence API, which covers 19+ platforms including GitHub, Hacker News, arXiv, npm, PyPI, Reddit, X/Twitter, and more.\n\nPayment is handled via the x402 protocol — the endpoint returns HTTP 402 with a payment challenge that x402-compatible clients resolve automatically. Alternative access methods include a broker API (with a free API key providing $0.05 credit), an MCP server at mcp.hugen.tokyo, and a Python SDK (`pip install x402-pay`) for one-line access without wallet integration.","tags":[],"capabilities":["stackoverflow-search","stackexchange-search","qa-search","x402-micropayment","sort-by-relevance","sort-by-votes","sort-by-activity","sort-by-creation","per-page-pagination","multi-site-stackexchange"],"categories":["search","developer-tools"],"synonyms":["stack overflow search","stackexchange search","programming Q&A search","coding questions API","stack overflow API","developer Q&A","technical Q&A search","stackoverflow query"],"warnings":["No dedicated documentation page found (/docs, /api, /pricing all return 404)","Response schema is inferred from the x402 challenge sample — actual response fields may differ","Full answer body text availability is unconfirmed; the sample only shows question-level metadata"],"endpointUrl":"https://scout.hugen.tokyo/scout/stackoverflow","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"},"payTo":"4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z","amount":"5000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}]},"qualityScore":"0.720","qualityRationale":"Full OpenAPI schema with clear parameter definitions and a live 402 challenge confirming the endpoint works. The sample response in the challenge is minimal (only one result shown) and no dedicated docs page exists, but the schema and pricing are well-documented. Response body schema is inferred from the challenge sample rather than formally 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x402-pay\n\nimport x402_pay\nresult = x402_pay.get(\n  'https://scout.hugen.tokyo/scout/stackoverflow?q=async+await&sort=votes&per_page=5'\n)\nprint(result.json())","exampleRequest":{"url":"https://scout.hugen.tokyo/scout/stackoverflow?q=async+await&sort=votes&per_page=5&site=stackoverflow","method":"GET"},"exampleResponse":{"count":1,"query":"async await","source":"stackoverflow","results":[{"score":1250,"title":"How to use async/await in JavaScript","answers":8,"accepted":true}]},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint searches Stack Overflow and other StackExchange sites for Q&A, returning questions with score, answers, views, and tags","source_url":"https://scout.hugen.tokyo"},{"claim":"Payment required is $0.005 USDC per call via x402 on Base","source_url":"https://scout.hugen.tokyo/scout/stackoverflow"},{"claim":"Scout API covers 19+ platforms including Reddit, Hacker News, GitHub, Stack Overflow, arXiv, npm, PyPI, X/Twitter, YouTube, 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