zFiniazFINIA

payment rail

Coinbase Developer Platform

Authenticated facilitator and discovery surface for x402 on Base.

Verified

Machine: https://api.zfinia.com/v1/graph/entities/cdp

Official links

Relationships

FromTypeToEvidence
cdpFACILITATESx402Verified
coinbaseOPERATEScdpVerified
evt-cdp-x402-discovery-resourcesDISCUSSEScdpObserved
evt-coinbase-agentkit-openai-agents-2025-03-11DISCUSSEScdpVerified
evt-coinbase-agentkitDISCUSSEScdpObserved
evt-coinbase-x402-2025-05-06DISCUSSEScdpVerified
evt-payai-facilitatorDISCUSSEScdpObserved
evt-x402-docs-seller-quickstartDISCUSSEScdpObserved
evt-x402-org-quickstartDISCUSSEScdpObserved

Recent events

  • PayAI appears as an alternative x402 facilitator in official seller docs

    x402 seller documentation lists facilitator.payai.network alongside CDP for mainnet examples. That is TIER_B evidence that facilitation is not a Coinbase monopoly even when Coinbase originated the protocol.

    ObservedSource

  • x402 seller docs distinguish test facilitator from CDP mainnet

    Official seller documentation instructs developers not to reuse https://x402.org/facilitator on mainnet routes. Production examples include the CDP facilitator at api.cdp.coinbase.com/platform/v2/x402 and facilitator.payai.network. Supported networks listed include Base mainnet eip155:8453 and Solana.

    ObservedSource

  • CDP publishes machine-readable x402 resource discovery

    Coinbase Developer Platform exposes x402 discovery endpoints, including resource listings and merchant-by-payTo queries. These indexes are observations of listed resources and optional quality fields such as recent calls and unique payers. They are not Foundry revenue and not proof of independent demand for any one seller.

    ObservedSource

  • Coinbase introduces x402: stablecoin payments over HTTP 402

    On 6 May 2025 Coinbase Developer Platform published x402. Servers return HTTP 402 with payment requirements; clients retry with a signed payment, typically USDC on cheap L2s such as Base. The announcement explicitly targets APIs, apps and AI agents. Documentation and a reference implementation were pointed at x402.org and GitHub.

    VerifiedSource

  • x402.org quickstart is the buyer/seller on-ramp

    The public x402 getting-started quickstart is the documented on-ramp for implementing a 402 server or client. It is TIER_B documentation evidence of how the protocol wants to be used.

    ObservedSource

  • Coinbase AgentKit adds launch-day support for OpenAI’s Agents SDK

    On 11 March 2025 Coinbase Developer Platform said AgentKit would support OpenAI’s Agents SDK on launch day, so developers could attach commercial/wallet capabilities to that orchestration kit. This is vendor documentation of an integration, not proof of independent paid volume.

    VerifiedSource

  • Coinbase AgentKit packages wallet actions for agents

    Coinbase open-sourced AgentKit so agents can perform wallet operations through a structured toolkit rather than raw key management in prompts. It sits next to CDP and x402: one stack for holding value, another for paying HTTP resources.

    ObservedSource

Source

verified · https://zfinia.com/methodology