PayAPI Market

PageWatch x402: page extraction and change monitors

Extract structured data from any public static HTML or JSON page (text, attr, list, table, price, events, page summary, links, JSONPath) as JSON/CSV/ICS for $0.002 per call, or create a 30-day page-change monitor with 15-minute checks, signed webhooks, RSS and JSON event feeds for $0.25 once. USDC on Base over x402 v2. Honours robots.txt, no JavaScript rendering, failed calls are not settled. Free tier (/v1/extract, 30 calls a day), OpenAPI at /openapi.json, MCP at /mcp.

1 of 2 routes settlement-verified · $0.002–$0.25 USDC/request · 2 endpoints · Data · 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

PageWatch x402: page extraction and change monitors is listed in the Data category with pricing at $0.002–$0.25 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 2 endpoints. Only the verified route has been tested by PayAPI Market. Other routes are unverified.

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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