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x402 Stack Overflow Search API
x402
x402 Stack Overflow Search API is a paid API for AI agents from workspace-x402-paywall.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Searches Stack Overflow questions and answers via a pay-per-call endpoint accepting USDC micropayments on Base or Solana mainnet
Price / call$0.005
Success—
StatusUnknown
How this service works
66 pay-per-call APIs: AI text/image generation ($0.01), Polymarket odds, crypto prices, DeFi yields, FX rates, weather, IP/geo, FBI wanted, SEC tickers, clinical trials, 250M academic papers, Stack Overflow, meme-coin launchpads (pump.fun, Clanker, Four.meme, SunPump), tokenized stocks, Solana top 100, and 40+ more. $0.005/call standard. USDC on Base and Solana via x402.
Output
Returns a JSON object containing Stack Overflow search results matching the query, potentially filtered to specific fields such as question title, answer content, votes, or other post metadata as specified by the fields parameter.
Example use cases
Debugging a runtime error
“Search Stack Overflow for 'Python TypeError: unhashable type list' and show me the most relevant questions and their accepted answers.”
Finding library usage examples
“Can you search Stack Overflow for 'React useEffect cleanup function' and return the question titles and any top-voted answers?”
Best practices for a framework
“Look up Stack Overflow for best practices on 'Django REST framework authentication' and summarize the top results for me.”
Technical details
Endpoint
GEThttps://workspace-x402-paywall.onrender.com/dev/stackoverflow?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to programmatically search Stack Overflow content on a pay-per-use basis without managing a Stack Exchange API key, and when the agent operates in a crypto-payment-enabled environment using x402 on Base or Solana mainnet.
Side effects
- Missing required 'q' parameter returns an error
- Payment not provided or insufficient USDC results in 402 Payment Required
- Query returns no results for obscure or misspelled terms
- Rate limiting or server unavailability on the hosted Render instance
- Invalid fields parameter may return incomplete or default field sets
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object"
}Tags
x402
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