PayAPI Market

Research Brief API (x402)

Micropay research for agents: outline 0.01 USDC or full brief 0.02 USDC on Base. Taskmarket-shaped markdown scaffold.

Listed · $0.01–$0.02 USDC/request · 5 endpoints / 2 tools · Intelligence · base network · x402 protocol

Networks: Base (accepted)

Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.

url https://payapi.market/mcp

About this API

Research Brief API (x402) is listed in the Intelligence category with pricing at $0.01–$0.02 USDC/request.

Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.

This API exposes 5 endpoints.

How to call this API

Every protected route returns HTTP 402 with x402 payment requirements. An agent pays the stated USDC amount on Base and retries with the payment header. No API keys, no accounts. Browse the marketplace or list your own API.

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