PayAPI Market

Liminal Spot Prices

Live crypto spot-price snapshots (USD) + fiat FX conversion for AI agents. $0.01 USDC per call on Base via the x402 protocol — no signup, no API key; unpaid calls return an HTTP 402 with exact pay ins

1 route settlement-verified · $0.01–$1 USDC/request · 1 endpoint · Finance · base network · x402 protocol

Verified routes

Other routes are unverified.

Networks: Base (settlement-verified)

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

Liminal Spot Prices is listed in the Finance category with pricing at $0.01–$1 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-10-18. View receipt on Basescan.

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 1 endpoint.

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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By Liminal Research