{
  "schema_version": "1",
  "generated_at": "2026-10-20T00:00:00Z",
  "tag": "l402",
  "count": 16,
  "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": "lightning-labs-agent-tools-launch",
      "title": "The Agents Are Here and They Want to Transact: Powering the AI Economy with Lightning",
      "publisher": "Lightning Labs",
      "authors": [
        "Michael Levin"
      ],
      "date_published": "2026-02-11",
      "url": "https://lightning.engineering/posts/2026-02-11-ln-agent-tools/",
      "type": "announcement",
      "category": "bitcoin-lightning",
      "summary": "Launch post for Lightning Agent Tools: seven composable open-source skills that let AI agents run Lightning nodes, pay L402-gated APIs, host paid endpoints and query nodes via MCP. It also introduces lnget, an L402-aware command-line HTTP client.",
      "tags": [
        "lightning",
        "l402",
        "agent-wallets",
        "mcp",
        "bitcoin"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260908091514/https://lightning.engineering/posts/2026-02-11-ln-agent-tools/"
    },
    {
      "id": "lightning-labs-ai-for-all-langchain",
      "title": "AI for All: Powering APIs and Large Language Models with Lightning",
      "publisher": "Lightning Labs",
      "authors": [
        "Olaoluwa Osuntokun",
        "Michael Levin"
      ],
      "date_published": "2023-07-06",
      "url": "https://lightning.engineering/posts/2023-07-05-l402-langchain/",
      "type": "announcement",
      "category": "bitcoin-lightning",
      "summary": "Lightning Labs announcement of developer tools built on L402 and LangChain, including LangChainBitcoin. With these tools, agents can hold a Bitcoin balance, send and receive over Lightning, and pay for L402-gated APIs.",
      "tags": [
        "l402",
        "lightning",
        "bitcoin",
        "agent-wallets"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260422152959/https://lightning.engineering/posts/2023-07-05-l402-langchain/"
    },
    {
      "id": "lightning-agent-tools-github",
      "title": "lightninglabs/lightning-agent-tools",
      "publisher": "GitHub (Lightning Labs)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/lightninglabs/lightning-agent-tools",
      "type": "repo",
      "category": "bitcoin-lightning",
      "summary": "AI agent toolkit (skills plus an MCP server) for Lightning payments: node operation, L402 API payments, paid endpoint hosting and scoped macaroon credentials. Its default security model uses a remote signer that keeps private keys off the agent machine.",
      "tags": [
        "lightning",
        "l402",
        "agent-wallets",
        "mcp",
        "security"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260519020054/https://github.com/lightninglabs/lightning-agent-tools"
    },
    {
      "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": "lightning-labs-l402-protocol-specification",
      "title": "L402 Protocol Specification",
      "publisher": "Lightning Labs (Builder's Guide)",
      "authors": [],
      "date_published": null,
      "url": "https://docs.lightning.engineering/the-lightning-network/l402/protocol-specification",
      "type": "spec",
      "category": "bitcoin-lightning",
      "summary": "Specification of the abstract L402 HTTP and gRPC protocols. It defines the \"L402\" authentication scheme, which carries credentials as macaroon:preimage pairs.",
      "tags": [
        "l402",
        "lightning",
        "macaroons",
        "identity"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260702152123/https://docs.lightning.engineering/the-lightning-network/l402/protocol-specification"
    },
    {
      "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": "lightninglabs-langchainbitcoin-github",
      "title": "lightninglabs/LangChainBitcoin",
      "publisher": "GitHub (Lightning Labs)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/lightninglabs/LangChainBitcoin",
      "type": "repo",
      "category": "bitcoin-lightning",
      "summary": "Tools that give LangChain agents access to Bitcoin and the Lightning Network, including LLM agent BitcoinTools for an lnd node and an L402 HTTP API traversal wrapper.",
      "tags": [
        "lightning",
        "l402",
        "bitcoin",
        "agent-wallets"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20250714041334/https://github.com/lightninglabs/LangChainBitcoin"
    },
    {
      "id": "lightninglabs-lnget-github",
      "title": "lightninglabs/lnget",
      "publisher": "GitHub (Lightning Labs)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/lightninglabs/lnget",
      "type": "repo",
      "category": "bitcoin-lightning",
      "summary": "A wget/curl-style command-line client that pays L402 Lightning invoices automatically, caches the resulting tokens and retries the request. Per the docs it offers JSON output, a per-request spending cap and an MCP mode for agents.",
      "tags": [
        "l402",
        "lightning",
        "agent-wallets",
        "tools",
        "mcp"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260211194037/https://github.com/lightninglabs/lnget"
    },
    {
      "id": "lightning-agent-tools-l402-and-lnget",
      "title": "L402 and lnget (lightning-agent-tools docs)",
      "publisher": "GitHub (Lightning Labs)",
      "authors": [],
      "date_published": null,
      "url": "https://github.com/lightninglabs/lightning-agent-tools/blob/main/docs/l402-and-lnget.md",
      "type": "docs",
      "category": "bitcoin-lightning",
      "summary": "Lightning Labs guide on how agents use lnget to reach L402-gated endpoints, covering backend options (lnd, Lightning Node Connect, embedded Neutrino) and bounded per-request spending.",
      "tags": [
        "l402",
        "lightning",
        "agent-wallets",
        "security"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260320133408/https://github.com/lightninglabs/lightning-agent-tools/blob/main/docs/l402-and-lnget.md"
    },
    {
      "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": "l402apps-com",
      "title": "L402 Apps",
      "publisher": "L402 Apps",
      "authors": [],
      "date_published": null,
      "url": "https://www.l402apps.com/",
      "type": "directory",
      "category": "bitcoin-lightning",
      "summary": "Directory of apps and APIs presented as reachable through L402 payment gateways.",
      "tags": [
        "l402",
        "lightning",
        "directory"
      ],
      "verified_at": "2026-10-20",
      "featured": true,
      "last_checked": "2026-10-20",
      "http_status": 200,
      "archive_url": "http://web.archive.org/web/20260615114727/https://www.l402apps.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/"
    }
  ]
}