# FetchDelta

> Paid page freshness API for agents that monitor docs, release notes, pricing, and policy pages.

FetchDelta is a paid HTTP API for autonomous agents.
It provides two paid GET endpoints over x402 on Base mainnet USDC.

## Free discovery endpoints
- Docs: https://fetchdelta.com/docs
- Manifest: https://fetchdelta.com/manifest
- OpenAPI: https://fetchdelta.com/openapi.json
- Health: https://fetchdelta.com/health
- Free preview: https://fetchdelta.com/api/resolve/preview?url=https%3A%2F%2Fexample.com%2Fpost
- Landing page: https://fetchdelta.com

## Paid endpoints
- Resolve page to markdown: https://fetchdelta.com/api/resolve?url=https%3A%2F%2Fexample.com%2Fpost ($0.002)
- Diff page against previous snapshot: https://fetchdelta.com/api/diff?url=https%3A%2F%2Fexample.com%2Fpost ($0.004)

## Typical uses
- Docs and policy-page monitoring for agents
- Cheap webpage extraction into clean markdown
- Change detection for release notes, pricing pages, and listings

## Payment
- Network: eip155:8453
- Settlement asset: USDC
- Protocol: x402 over HTTP 402