{
  "schema_version": "1",
  "generated_at": "2026-10-20T00:00:00Z",
  "tag": "m2m-payments",
  "count": 27,
  "entries": [
    {
      "id": "lightning-labs-l402-for-agents",
      "title": "The Future Is Now: Why L402 Is the Internet-Native Payments Protocol for Agents",
      "publisher": "Lightning Labs",
      "authors": [
        "Michael Levin"
      ],
      "date_published": "2026-03-11",
      "url": "https://lightning.engineering/posts/2026-03-11-L402-for-agents/",
      "type": "announcement",
      "category": "bitcoin-lightning",
      "summary": "Lightning Labs post explaining how L402 puts HTTP 402 Payment Required to work by pairing it with the Lightning Network and cryptographic authentication tokens. Any Lightning-enabled client can pay for and authenticate with an L402 API instantly, with no signup, API key or prior relationship, and the post covers updates to the L402 bLIP specification.",
      "tags": [
        "l402",
        "lightning",
        "bitcoin",
        "m2m-payments",
        "micropayments"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260703094933/https://lightning.engineering/posts/2026-03-11-L402-for-agents/"
    },
    {
      "id": "arxiv-lightning-micropayments-iot",
      "title": "Enabling Micro-payments on IoT Devices using Bitcoin Lightning Network",
      "publisher": "arXiv",
      "authors": [
        "Ahmet Kurt",
        "Suat Mercan",
        "Enes Erdin",
        "Kemal Akkaya"
      ],
      "date_published": "2020-12-19",
      "url": "https://arxiv.org/abs/2012.10576",
      "type": "research-paper",
      "category": "bitcoin-lightning",
      "summary": "Proposes a protocol that lets resource-constrained IoT devices use Lightning through a gateway node, with 3-of-3 multisignature channels so the device signs every channel operation. It was demonstrated on a Raspberry Pi in a toll-payment scenario.",
      "tags": [
        "lightning",
        "iot",
        "m2m-payments",
        "micropayments",
        "research"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260403081751/https://arxiv.org/abs/2012.10576"
    },
    {
      "id": "lightning-labs-l402-builders-guide",
      "title": "L402: Lightning HTTP 402 Protocol",
      "publisher": "Lightning Labs (Builder's Guide)",
      "authors": [],
      "date_published": null,
      "url": "https://docs.lightning.engineering/the-lightning-network/l402",
      "type": "docs",
      "category": "bitcoin-lightning",
      "summary": "Lightning Labs documentation presenting L402 as a standard for selling and buying digital resources that lets services charge for API endpoints in a way AI agents can easily use.",
      "tags": [
        "l402",
        "lightning",
        "m2m-payments",
        "micropayments"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261009034701/https://docs.lightning.engineering/the-lightning-network/l402"
    },
    {
      "id": "lightninglabs-l402-github",
      "title": "lightninglabs/L402",
      "publisher": "GitHub (Lightning Labs)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/lightninglabs/L402",
      "type": "repo",
      "category": "bitcoin-lightning",
      "summary": "Repository for L402, an open protocol for paying for and authenticating access to APIs over the Lightning Network. The server's 402 response carries a macaroon and a Lightning invoice, and the client re-sends the request with the macaroon and the payment preimage.",
      "tags": [
        "l402",
        "lightning",
        "macaroons",
        "m2m-payments"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260610015121/https://github.com/lightninglabs/L402"
    },
    {
      "id": "lightninglabs-aperture-github",
      "title": "lightninglabs/aperture",
      "publisher": "GitHub (Lightning Labs)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/lightninglabs/aperture",
      "type": "repo",
      "category": "bitcoin-lightning",
      "summary": "Aperture is an L402 reverse proxy for gRPC and REST backends that gates access behind Lightning payments. The repository states it is used in production by Lightning Loop.",
      "tags": [
        "l402",
        "lightning",
        "m2m-payments"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20250812194102/https://github.com/lightninglabs/aperture"
    },
    {
      "id": "lightning-bolts-github",
      "title": "lightning/bolts: BOLT: Basis of Lightning Technology (Lightning Network Specifications)",
      "publisher": "GitHub (lightning)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/lightning/bolts",
      "type": "spec",
      "category": "bitcoin-lightning",
      "summary": "Repository of the BOLT specifications, which define the Lightning Network layer-2 protocol for off-chain bitcoin transfer. They cover messaging, peer channel management, transactions, onion routing and invoices.",
      "tags": [
        "lightning",
        "bitcoin",
        "m2m-payments"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260704121535/https://github.com/lightning/bolts"
    },
    {
      "id": "l402-org",
      "title": "L402: native payments for MCP, AI agents, APIs and data",
      "publisher": "l402.org",
      "authors": [],
      "date_published": null,
      "url": "https://www.l402.org/",
      "type": "spec",
      "category": "bitcoin-lightning",
      "summary": "Site describing an offers-based L402 flow in which a server answers HTTP 402 with JSON payment offers and the client retries after payment. This is distinct from Lightning Labs’ macaroon-based L402 specification. The site does not name another publisher.",
      "tags": [
        "l402",
        "lightning",
        "m2m-payments",
        "mcp"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260927044919/https://www.l402.org/"
    },
    {
      "id": "nostr-nip-90-data-vending-machine",
      "title": "NIP-90: Data Vending Machine",
      "publisher": "GitHub (nostr-protocol/nips)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/nostr-protocol/nips/blob/master/90.md",
      "type": "spec",
      "category": "bitcoin-lightning",
      "summary": "Nostr spec for on-demand computation ('money in, data out'). Customers publish job requests (kinds 5000-5999), service providers return results (6000-6999) and feedback (7000), and payment is typically made over Lightning. The spec itself is marked draft and 'unrecommended'.",
      "tags": [
        "nostr",
        "lightning",
        "m2m-payments",
        "micropayments"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261007111747/https://github.com/nostr-protocol/nips/blob/master/90.md"
    },
    {
      "id": "blackrock-machine-native-economy",
      "title": "The Machine-Native Economy: AI and Digital Assets",
      "publisher": "BlackRock",
      "authors": [
        "Robert Mitchnick"
      ],
      "date_published": "2026-10-05",
      "url": "https://www.blackrock.com/us/financial-professionals/insights/machine-native-economy",
      "type": "report",
      "category": "payments",
      "summary": "BlackRock insight arguing that LLMs and blockchains share a machine-native, token-based foundation and that agentic commerce requires machine-native payment rails. It states that stablecoins and native cryptoassets can serve as machine-native instruments for machine-to-machine payments.",
      "tags": [
        "stablecoins",
        "m2m-payments",
        "tokenization",
        "market-data"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261009205047/https://www.blackrock.com/us/financial-professionals/insights/machine-native-economy"
    },
    {
      "id": "waller-payments-age-ai-agents",
      "title": "Payments in the age of AI agents",
      "publisher": "Board of Governors of the Federal Reserve System (via BIS central bankers' speeches)",
      "authors": [
        "Christopher J. Waller"
      ],
      "date_published": "2026-09-29",
      "url": "https://www.bis.org/speeches/20261005-payments-age-ai-agents",
      "type": "regulatory",
      "category": "payments",
      "summary": "Speech by Federal Reserve Governor Christopher J. Waller at Sibos 2026 in Miami on how AI agents may shape payments. Published on the BIS central bankers' speeches site.",
      "tags": [
        "regulation",
        "m2m-payments",
        "stablecoins"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261008221104/https://www.bis.org/speeches/20261005-payments-age-ai-agents"
    },
    {
      "id": "ietf-draft-httpauth-payment",
      "title": "The \"Payment\" HTTP Authentication Scheme (draft-httpauth-payment-01)",
      "publisher": "IETF Datatracker",
      "authors": [
        "Brendan Ryan",
        "Jake Moxey",
        "Tom Meagher",
        "Jeff Weinstein",
        "Steve Kaliski"
      ],
      "date_published": "2026-09-09",
      "url": "https://datatracker.ietf.org/doc/draft-httpauth-payment/",
      "type": "spec",
      "category": "payments",
      "summary": "Internet-Draft defining a payment-method-agnostic HTTP authentication scheme for 402 flows: the server sends WWW-Authenticate: Payment with challenge parameters and the client retries with Authorization: Payment and a credential. Revision 01 is dated 2026-09-09 and is an active draft, not an RFC.",
      "tags": [
        "m2m-payments",
        "http",
        "standards",
        "interop"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261014085833/https://datatracker.ietf.org/doc/draft-httpauth-payment/"
    },
    {
      "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": "mastercard-agent-pay-for-machines",
      "title": "Mastercard launches Agent Pay for Machines to unlock super-fast, always-on payments",
      "publisher": "Mastercard",
      "authors": [],
      "date_published": "2026-06-10",
      "url": "https://www.mastercard.com/us/en/news-and-trends/press/2026/june/mastercard-launches-agent-pay-for-machines.html",
      "type": "announcement",
      "category": "payments",
      "summary": "Mastercard press release launching Agent Pay for Machines, a service for continuous, high-velocity agent-to-agent transactions and microtransactions. It lists more than 30 early supporters, including Adyen, Coinbase, Stripe and Tempo.",
      "tags": [
        "card-networks",
        "m2m-payments"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 403,
      "archive_url": "http://web.archive.org/web/20261003095645/https://www.mastercard.com/us/en/news-and-trends/press/2026/june/mastercard-launches-agent-pay-for-machines.html"
    },
    {
      "id": "arxiv-apex-agent-payment-execution",
      "title": "APEX: Agent Payment Execution with Policy for Autonomous Agent API Access",
      "publisher": "arXiv",
      "authors": [
        "Mohd Safwan Uddin",
        "Mohammed Mouzam",
        "Mohammed Imran",
        "Syed Badar Uddin Faizan"
      ],
      "date_published": "2026-04-02",
      "url": "https://arxiv.org/abs/2604.02023",
      "type": "research-paper",
      "category": "payments",
      "summary": "Research system that adapts HTTP 402-style payment gating to UPI-like real-time fiat workflows, with policy-governed spend control for autonomous agents calling APIs.",
      "tags": [
        "m2m-payments",
        "research",
        "security"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260403123042/https://arxiv.org/abs/2604.02023"
    },
    {
      "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": "stripe-introducing-machine-payments-protocol",
      "title": "Introducing the Machine Payments Protocol",
      "publisher": "Stripe",
      "authors": [
        "Jeff Weinstein",
        "Steve Kaliski"
      ],
      "date_published": "2026-03-18",
      "url": "https://stripe.com/blog/machine-payments-protocol",
      "type": "announcement",
      "category": "payments",
      "summary": "Stripe blog post launching the Machine Payments Protocol (MPP), an open, internet-native standard for agent payments co-authored by Tempo and Stripe.",
      "tags": [
        "m2m-payments",
        "stablecoins",
        "agent-wallets"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261015094944/https://stripe.com/blog/machine-payments-protocol"
    },
    {
      "id": "visa-card-spec-sdk-mpp",
      "title": "Visa introduces card specification and SDK for Machine Payments Protocol",
      "publisher": "Visa",
      "authors": [],
      "date_published": "2026-03-18",
      "url": "https://corporate.visa.com/en/sites/visa-perspectives/innovation/visa-card-specification-sdk-for-machine-payments-protocol.html",
      "type": "announcement",
      "category": "payments",
      "summary": "Visa announcement of a card specification and SDK that enable card-based payments for autonomous agents within Stripe and Tempo's Machine Payments Protocol. It coincided with Tempo's mainnet launch.",
      "tags": [
        "card-networks",
        "m2m-payments"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": null
    },
    {
      "id": "cloudflare-pay-per-crawl",
      "title": "Introducing pay per crawl: Enabling content owners to charge AI crawlers for access",
      "publisher": "Cloudflare Blog",
      "authors": [],
      "date_published": "2025-07-01",
      "url": "https://blog.cloudflare.com/introducing-pay-per-crawl/",
      "type": "announcement",
      "category": "payments",
      "summary": "Cloudflare announcement of pay per crawl, which lets content owners charge AI crawlers for access using HTTP 402 responses. It is a machine-payable content model at CDN scale.",
      "tags": [
        "m2m-payments",
        "micropayments",
        "web-agents"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261016042320/https://blog.cloudflare.com/introducing-pay-per-crawl/"
    },
    {
      "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": "stripe-docs-mpp",
      "title": "MPP",
      "publisher": "Stripe Docs",
      "authors": [],
      "date_published": null,
      "url": "https://docs.stripe.com/payments/machine/mpp",
      "type": "docs",
      "category": "payments",
      "summary": "Stripe documentation on accepting agent payments with the Machine Payments Protocol: servers respond with HTTP 402 and payment details, and agents authorize payment and retry to receive the resource and a receipt.",
      "tags": [
        "m2m-payments",
        "stablecoins"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261014090103/https://docs.stripe.com/payments/machine/mpp"
    },
    {
      "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": "mpp-dev",
      "title": "MPP: Machine Payments Protocol",
      "publisher": "mpp.dev",
      "authors": [],
      "date_published": null,
      "url": "https://mpp.dev/",
      "type": "spec",
      "category": "payments",
      "summary": "Documentation hub for the Machine Payments Protocol, which standardizes HTTP 402 challenges, credentials and receipts for machine payments across methods including stablecoins, cards and Lightning. It publishes llms.txt, per-page Markdown, an MCP server card and an Agent Skills index.",
      "tags": [
        "m2m-payments",
        "stablecoins",
        "lightning",
        "interop"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261006012625/https://mpp.dev/"
    },
    {
      "id": "mpp-discovery",
      "title": "Discovery (MPP)",
      "publisher": "mpp.dev",
      "authors": [],
      "date_published": null,
      "url": "https://mpp.dev/advanced/discovery",
      "type": "docs",
      "category": "payments",
      "summary": "Explains how an MPP server advertises payment terms ahead of time in an OpenAPI 3.1 document, with paid operations annotated by x-payment-info, while the runtime 402 challenge remains authoritative.",
      "tags": [
        "m2m-payments",
        "openapi",
        "interop"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20261003141031/https://mpp.dev/advanced/discovery"
    },
    {
      "id": "mpp-services-directory",
      "title": "MPP services",
      "publisher": "mpp.dev",
      "authors": [],
      "date_published": null,
      "url": "https://mpp.dev/services",
      "type": "directory",
      "category": "payments",
      "summary": "Curated directory of APIs that accept MPP payments, also available as JSON at /api/services with per-endpoint payment intent, method, asset and amount.",
      "tags": [
        "m2m-payments",
        "directory",
        "stablecoins"
      ],
      "verified_at": "2026-10-20",
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260826050535/https://mpp.dev/services"
    },
    {
      "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
    }
  ]
}