Coinbase AgentKit packages wallet actions for agents
A toolkit for agents that need to hold and spend onchain, adjacent to x402 payers.
protocol
x402
Open HTTP-native payment protocol that uses status 402 and stablecoin settlement, originally published by Coinbase.
Machine: /v1/intelligence/entity/x402 · Graph: /v1/graph/entities/x402
Graph relationships
- agent402
- agentkit
- agentpay
- base
- bazaar
- cdp
- cloudflare
- coinbase
- evt-base-l2-fees-enable-micropayments
- evt-cdp-x402-discovery-resources
- evt-cloudflare-monetization-gateway-x402
- evt-coinbase-x402-2025-05-06
- evt-foundry-csv-profile-live
- evt-hn-pay-per-crawl-discussion
- evt-linux-foundation-x402-intent-2026-04-02
- evt-linux-foundation-x402-operational-2026-07-14
Timeline
Coinbase AgentKit adds launch-day support for OpenAI’s Agents SDK
Wallet actions and agent orchestration were joined on the same calendar day.
x402.org quickstart is the buyer/seller on-ramp
The first hour of a new seller still starts at docs, not at a marketplace ranking.
x402.org is the public protocol home
Docs host and test facilitator are different roles. Mainnet facilitation is called out separately.
Coinbase introduces x402: stablecoin payments over HTTP 402
An open protocol that turns Payment Required into a machine-payable API primitive.
Cheap L2 fees are the economic precondition x402 keeps citing
Coinbase’s x402 launch note argued that cent-level L2 fees revive HTTP micropayments.
Ethereum’s Pectra upgrade lands on mainnet
L1/L2 fee and account features are plumbing for micropayments.
Hacker News immediately linked Cloudflare’s 402 crawl experiment to x402
Community comments are signals, not facts. This thread shows protocol awareness among builders.
CDP publishes machine-readable x402 resource discovery
The Bazaar-style discovery API is how agents find payable HTTP resources.
@x402/core becomes the reference TypeScript client/server SDK
Package cadence is a developer-activity signal for the protocol’s real adoption, not GitHub stars.
Third-party x402 directories appear beside official Bazaar
Indexing competition is a discovery-layer market of its own.
x402 seller docs distinguish test facilitator from CDP mainnet
x402.org facilitator is for testnets; mainnet examples point at Coinbase CDP and PayAI.
x402 seller docs list Solana alongside Base
The protocol is not Base-only even if Foundry’s first rail is.
PayAI publishes a public facilitator home
Facilitator competition is now a market-structure fact, not only a docs footnote.
PayAI appears as an alternative x402 facilitator in official seller docs
Facilitator competition is now documented next to CDP in the x402 seller path.
x402 HTTP transport specifies 402 headers, not body-only protocol
PAYMENT-REQUIRED, PAYMENT-SIGNATURE and PAYMENT-RESPONSE carry the protocol.
Stripe documents MPP as an internet-native way for agents to pay
PaymentIntents, Shared Payment Tokens and stablecoins without a checkout UI.
Agent wallets converge on stablecoins plus policy limits
Visa tokens, x402 USDC and MPP SPTs are different wrappers on the same control problem.
Agent commerce protocols proliferate beyond crypto-native stacks
Stripe ACP, Visa Intelligent Commerce, MPP and x402 now sit in one landscape.
x402 Foundation language appears as multi-vendor governance
Cloudflare describes a coalition via the x402 Foundation rather than Coinbase-only control.
Linux Foundation announces it is launching the x402 Foundation
Coinbase contributes the protocol toward vendor-neutral governance.
Paid MCP is still an overlay, not a core MCP feature
The protocol gives tools/list and tools/call. Payment is someone else’s 402.
Cloudflare Monetization Gateway puts x402 on any edge-protected resource
One control plane to charge for pages, datasets, APIs and MCP tools in stablecoins.
Linux Foundation announces operational launch of the x402 Foundation
Forty member organisations listed. Stewardship is now described as active.
Foundry CSV Profile remains a live x402 experiment, not independent revenue
First-party disclosure: this is our own seller infrastructure, not a third-party endorsement.
Circle opens a keyless x402 Discovery API for the Agent Marketplace
One unauthenticated GET now returns live USDC-payable services with payment terms and call schemas.
Machine Economy Daily — 10 September 2026
Agents can now query a public x402 catalog; card networks started shared agent-identity work. Listing count is still not demand.