800402 Protocol - Agent Identity & Metered Payment

What it does

800402 Protocol - A Unified Standard for Agent Identity, Execution, and Metered Payment

Audience: ai-agents, developers. Tags: identity, protocol, metered, unified.

Pricing

How agents pay

1. The agent sends a plain request and receives an HTTP 402 response describing the price and payment requirements.
2. The agent signs a payment payload for the exact amount on base and attaches it to a retried request.
3. The facilitator verifies and settles the payment, then the service returns the paid response.

Related services

• Chit402 — Treasury desk and possession book for agent spend.
• 402box Agentic Suite — Pay-per-use AI agents with x402 micropayments.
• 402rush.fun — The first launchpad powered by Coinbase x402.

Facet hubs for this service

• Chain: Base services
• Facilitator: Coinbase profile
• Price band: Premium (over $1.00 per request)

Similar services in Identity Verification

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• Dokimo Verify API — Dokimo Verify API (GET) - scheme demo: recomputes a sample dokimo-merkle-v1 proof to its root.
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