# Marking

> Marking is information infrastructure for autonomous software. Agents, applications, and protocols use Marking to discover, pay for, stream, and verify live data and evidence-backed outcomes.

## Primary use cases

- Live market feeds for agents, trading systems, dashboards, and financial applications.
- Signed canonical updates that can be independently verified by consumers.
- x402-native payment access for account-light machine transactions.
- Time-bound data leases for streams and API access.
- Event and prediction-market outcome verification with signed attestations.
- Reputation and provenance surfaces for sources, publishers, and agents.

## Public pages

- Home: https://marking.fyi/
- Explorer: https://marking.fyi/explorer
- Documentation: https://marking.fyi/docs
- Status: https://marking.fyi/status
- Security: https://marking.fyi/security
- Privacy: https://marking.fyi/privacy
- Terms: https://marking.fyi/terms
- Console login: https://marking.fyi/login

## Agent integration surface

- REST snapshots and history.
- Seven-day OHLCV history derived from stored 1s and 1m candles.
- Funding-rate snapshots for BTC, ETH, and SOL perpetual markets.
- Top-of-book spread/depth snapshots, liquidity scores, and market-making/arbitrage signals.
- WebSocket live streams.
- Signed canonical update envelopes.
- Signed data leases.
- Verification endpoints for attestations and feed updates.
- x402 payment negotiation for paid access.

## Pay-as-you-go x402 services

- Market intelligence bundle: `GET https://api.marking.fyi/v1/payg/feeds/{feedId}/intelligence` for `btc-usd`, `eth-usd`, or `sol-usd`.
- Funding rates: `GET https://api.marking.fyi/v1/payg/feeds/{feedId}/funding`.
- Top of book: `GET https://api.marking.fyi/v1/payg/feeds/{feedId}/book`.
- Liquidity score: `GET https://api.marking.fyi/v1/payg/feeds/{feedId}/liquidity`.
- Market signal: `GET https://api.marking.fyi/v1/payg/feeds/{feedId}/signals`.

## Positioning

Marking is chain-aware but not chain-limited. A deployment network is an execution environment; the product is the information, trust, reputation, and payment layer.