Locate and invoke paid API endpoints with automatic USDC payment on Base.
npx skills add https://github.com/Tsin418/crypto-research-agent --skill x402-tsin418
Please help me install this Agent Skill. Skill: x402 Source: https://github.com/Tsin418/crypto-research-agent/tree/main/.agents/skills/x402 Command: npx skills add https://github.com/Tsin418/crypto-research-agent --skill x402-tsin418
x402 eliminates the friction of discovering which third-party paid API endpoints to use and figuring out how to pay for them, so you can fetch paid capabilities quickly and correctly.
Use case: You need a specific data enrichment or analysis endpoint but do not know which provider offers it or what it costs—search the bazaar, check requirements, then execute a paid call with the right HTTP method and JSON body.
Ask the AI to use x402 to search for a paid API for your task, check the best matching endpoint’s requirements, and then make a USDC-paid request to fetch the results.
High-intent search queries and answers about installing and using this skill.
To discover and call paid APIs using USDC on Base, you can search a paid API bazaar by keyword, inspect endpoint requirements via 402 probing, and execute paid requests automatically using npx awal x402 commands.
Finding third-party paid API endpoints without a known provider involves searching the API bazaar by keyword and filtering results by network, payment scheme, price, and asset to locate the correct service.
Yes, you can inspect a paid API's accepted method, price, payment schemes, network, and input/output schemas without paying by using endpoint details discovery via 402 probing.
To execute a paid API request with automatic USDC payment, you use npx awal x402 commands with structured JSON inputs, conforming to the endpoint's request method while setting max payment limits.
When searching the paid API bazaar, available filters include network, payment scheme, price, asset, and pay-to address, allowing you to narrow down relevant services by keyword.
Yes, x402 works with API endpoints requiring specific HTTP methods and JSON bodies, allowing you to pay-call a specific endpoint while conforming to its request method and schema.
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