{
  "schema_version": "1",
  "generated_at": "2026-10-20T00:00:00Z",
  "tag": "x402",
  "count": 16,
  "entries": [
    {
      "id": "linux-foundation-x402-foundation-operational-launch",
      "title": "Linux Foundation Announces Operational Launch of x402 Foundation to Standardize Internet-Native Payments for AI Agents and Applications",
      "publisher": "The Linux Foundation",
      "authors": [],
      "date_published": "2026-07-14",
      "url": "https://www.linuxfoundation.org/press/linux-foundation-announces-operational-launch-of-x402-foundation-to-standardize-internet-native-payments-for-ai-agents-and-applications",
      "type": "announcement",
      "category": "payments",
      "summary": "Press release announcing the operational launch of the x402 Foundation under the Linux Foundation, with 40 founding members, to steward x402 as an open standard for internet-native payments by AI agents and applications.",
      "tags": [
        "x402",
        "m2m-payments",
        "agent-wallets"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260921055124/https://www.linuxfoundation.org/press/linux-foundation-announces-operational-launch-of-x402-foundation-to-standardize-internet-native-payments-for-ai-agents-and-applications"
    },
    {
      "id": "linux-foundation-launching-x402-foundation",
      "title": "Linux Foundation is Launching the x402 Foundation and Welcoming the Contribution of the x402 Protocol",
      "publisher": "The Linux Foundation",
      "authors": [],
      "date_published": "2026-04-02",
      "url": "https://www.linuxfoundation.org/press/linux-foundation-is-launching-the-x402-foundation-and-welcoming-the-contribution-of-the-x402-protocol",
      "type": "announcement",
      "category": "payments",
      "summary": "Press release, issued at MCP Dev Summit North America, announcing a new x402 Foundation to steward the open x402 protocol for payments over HTTP.",
      "tags": [
        "x402",
        "m2m-payments"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261015094937/https://www.linuxfoundation.org/press/linux-foundation-is-launching-the-x402-foundation-and-welcoming-the-contribution-of-the-x402-protocol"
    },
    {
      "id": "arxiv-a402-binding-payments-service-execution",
      "title": "A402: Binding Cryptocurrency Payments to Service Execution for Agentic Commerce",
      "publisher": "arXiv",
      "authors": [
        "Yue Li",
        "Lei Wang",
        "Kaixuan Wang",
        "Zhiqiang Yang",
        "Ke Wang",
        "Zhi Guan",
        "Jianbo Gao"
      ],
      "date_published": "2026-03-01",
      "url": "https://arxiv.org/abs/2603.01179",
      "type": "research-paper",
      "category": "payments",
      "summary": "Proposes A402, a trust-minimized payment architecture with Atomic Service Channels that bind cryptocurrency payments to service execution and result delivery. It addresses an atomicity gap the authors identify in x402.",
      "tags": [
        "x402",
        "security",
        "research"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260815005030/https://arxiv.org/abs/2603.01179"
    },
    {
      "id": "x402-whitepaper",
      "title": "x402: An open standard for internet-native payments",
      "publisher": "Coinbase Developer Platform",
      "authors": [
        "Erik Reppel",
        "Ronnie Caspers",
        "Kevin Leffew",
        "Danny Organ",
        "Dan Kim",
        "Nemil Dalal"
      ],
      "date_published": "2025-05-06",
      "url": "https://www.x402.org/x402-whitepaper.pdf",
      "type": "spec",
      "category": "payments",
      "summary": "Whitepaper describing x402, an HTTP-based protocol that uses onchain payments for agents, context retrieval and APIs. It explains why traditional rails fail for autonomous payments and how x402 works.",
      "tags": [
        "x402",
        "stablecoins",
        "m2m-payments"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260605201607/https://www.x402.org/x402-whitepaper.pdf"
    },
    {
      "id": "x402-org",
      "title": "x402",
      "publisher": "x402",
      "authors": [],
      "date_published": null,
      "url": "https://www.x402.org/",
      "type": "spec",
      "category": "payments",
      "summary": "Official x402 site, describing it as an open standard for internet-native payments that enables agentic payments at scale.",
      "tags": [
        "x402",
        "m2m-payments",
        "stablecoins"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261012224709/https://x402.org/"
    },
    {
      "id": "coinbase-x402-github",
      "title": "coinbase/x402",
      "publisher": "GitHub (Coinbase)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/coinbase/x402",
      "type": "repo",
      "category": "payments",
      "summary": "Reference repository for x402, \"a payments protocol for the internet. Built on HTTP.\"",
      "tags": [
        "x402",
        "m2m-payments"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260917165755/https://github.com/coinbase/x402"
    },
    {
      "id": "x402-bazaar-extension-docs",
      "title": "Bazaar (Discovery Layer)",
      "publisher": "x402 (docs.x402.org)",
      "authors": [],
      "date_published": null,
      "url": "https://docs.x402.org/extensions/bazaar",
      "type": "docs",
      "category": "payments",
      "summary": "Documentation for the x402 Bazaar extension. Facilitators can catalog payable HTTP endpoints and MCP tools and expose list and search discovery endpoints, so agents can find x402 resources together with their input/output schemas and prices.",
      "tags": [
        "x402",
        "directory",
        "m2m-payments",
        "interop"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261005104256/https://docs.x402.org/extensions/bazaar"
    },
    {
      "id": "x402-bazaar-spec-github",
      "title": "specs/extensions/bazaar.md",
      "publisher": "GitHub (x402 Foundation)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/x402-foundation/x402/blob/main/specs/extensions/bazaar.md",
      "type": "spec",
      "category": "payments",
      "summary": "Normative spec for the Bazaar extension. It covers facilitator validation of the discovery info and the optional GET /discovery/resources and /discovery/search APIs, which filter by type, payTo, scheme and network and paginate with offsets or cursors.",
      "tags": [
        "x402",
        "directory",
        "interop"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": null
    },
    {
      "id": "cdp-x402-bazaar",
      "title": "x402 Bazaar (Discovery Layer), CDP",
      "publisher": "Coinbase Developer Documentation",
      "authors": [],
      "date_published": null,
      "url": "https://docs.cdp.coinbase.com/x402/bazaar",
      "type": "docs",
      "category": "payments",
      "summary": "Coinbase's hosted Bazaar catalog of x402 resources seen by the CDP Facilitator. It offers a public paginated list, hybrid semantic search with price, network and asset filters, and an MCP interface. The read endpoints need no API key.",
      "tags": [
        "x402",
        "stablecoins",
        "directory",
        "mcp"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260712073149/https://docs.cdp.coinbase.com/x402/bazaar"
    },
    {
      "id": "x402scan-discovery-spec",
      "title": "x402scan Discovery & Registration Spec",
      "publisher": "GitHub (Merit Systems)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/Merit-Systems/x402scan/blob/main/docs/DISCOVERY.md",
      "type": "spec",
      "category": "payments",
      "summary": "Describes how x402scan discovers paid endpoints. It reads OpenAPI first, with per-operation x-payment-info pricing and a declared 402 response, and falls back to a /.well-known/x402 resource list. The live 402 challenge overrides static metadata.",
      "tags": [
        "x402",
        "openapi",
        "interop",
        "directory"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260130040413/https://github.com/Merit-Systems/x402scan/blob/main/docs/DISCOVERY.md"
    },
    {
      "id": "x402scan",
      "title": "x402scan: x402 Ecosystem Explorer",
      "publisher": "Merit Systems",
      "authors": [],
      "date_published": null,
      "url": "https://www.x402scan.com/",
      "type": "directory",
      "category": "payments",
      "summary": "Explorer and registry for x402 that tracks servers, transactions, buyers, merchants and facilitators across chains. It publishes an OpenAPI spec, an RFC 9727 api-catalog and a health endpoint. Most read API calls are paid via x402.",
      "tags": [
        "x402",
        "stablecoins",
        "directory",
        "market-data"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260812203604/https://www.x402scan.com/"
    },
    {
      "id": "402index",
      "title": "402 Index",
      "publisher": "402 Index",
      "authors": [],
      "date_published": null,
      "url": "https://402index.io/",
      "type": "directory",
      "category": "payments",
      "summary": "Protocol-agnostic directory of HTTP 402 paid APIs (L402, x402, MPP) with health probing, payment verification and semantic search. It exposes a JSON API, RSS, webhooks and an MCP server, and aggregates Bazaar, Satring, l402apps and MPP listings.",
      "tags": [
        "l402",
        "x402",
        "directory",
        "lightning",
        "stablecoins"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260825161802/https://402index.io/"
    },
    {
      "id": "402index-github",
      "title": "ryanthegentry/402index",
      "publisher": "GitHub (402 Index)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/ryanthegentry/402index",
      "type": "repo",
      "category": "payments",
      "summary": "MIT-licensed source for 402 Index, including an npm MCP server package, self-serve registration through a probe that validates the 402 challenge, and YAML listings accepted by pull request.",
      "tags": [
        "l402",
        "x402",
        "directory",
        "mcp"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": null
    },
    {
      "id": "satring",
      "title": "satring: Curated Paid API Directory for AI Agents",
      "publisher": "satring",
      "authors": [],
      "date_published": null,
      "url": "https://satring.com/",
      "type": "directory",
      "category": "payments",
      "summary": "Curated directory of paid APIs that accept L402, x402 (USDC on Base) or MPP. It has a free summary tier and paid bulk export, analytics and reputation, plus /.well-known/l402 and /.well-known/x402 payment descriptors and an agent.json.",
      "tags": [
        "l402",
        "x402",
        "directory",
        "lightning"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260711060251/https://satring.com/"
    },
    {
      "id": "x402-new",
      "title": "x402.new: The x402 Directory",
      "publisher": "x402.new",
      "authors": [],
      "date_published": null,
      "url": "https://x402.new/",
      "type": "directory",
      "category": "payments",
      "summary": "Directory of x402-payable APIs rebuilt from the public x402 discovery network. Each service page lists price, networks, method, inputs, an example response and 30-day call statistics. It offers paid featured placement.",
      "tags": [
        "x402",
        "stablecoins",
        "directory"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260403014505/https://x402.new/"
    },
    {
      "id": "hal-service-directory",
      "title": "Hal Service Directory",
      "publisher": "Hal",
      "authors": [],
      "date_published": null,
      "url": "https://directory.halmarket.dev/",
      "type": "directory",
      "category": "payments",
      "summary": "Marketplace directory of pay-per-call agent services that sellers price per call, paid over Lightning or USDC via x402. It publishes llms.txt and an OpenAPI description of the directory.",
      "tags": [
        "lightning",
        "x402",
        "directory",
        "m2m-payments"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": null
    }
  ]
}