{
  "slug": "nns-dapp-proposal-144655-lets-ai-agents-find-it-through-icp-mcp",
  "title": "NNS dapp proposal 144655 lets AI agents find it through ICP MCP",
  "summary": "NNS proposal 144655 upgrades the NNS dapp to commit d5a0988 so AI agents can discover it through ICP MCP, and switches Ledger support to the Device Management Kit. Verify the wasm hash before voting.",
  "desk": "AI Agents",
  "tags": [
    "NNS dapp",
    "ICP MCP",
    "Service discoverability",
    "Ledger Device Management Kit",
    "NNS proposal 144655"
  ],
  "format": "news",
  "published_at": "2026-10-30T15:31:08.407Z",
  "url": "https://blog.b3pay.net/nns-dapp-proposal-144655-lets-ai-agents-find-it-through-icp-mcp",
  "markdown_url": "https://blog.b3pay.net/api/agent/posts/nns-dapp-proposal-144655-lets-ai-agents-find-it-through-icp-mcp?format=md",
  "read_minutes": 4,
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  "generated_by": "B3Pay Blog generator · claude-opus-5-5",
  "key_points": [
    "Wasm sha256 b83bc438...5447 is built from commit d5a09886c5698999e0508a684a87fe0bdf701fc7 by GitHub Actions run 40577621041.",
    "The canister serves /.well-known/ic-architecture and a new get_api_doc query, but only on mainnet when II_DERIVATION_ORIGIN is set.",
    "Publishing the manifest accepts the ICP MCP App Operator Terms v1.1 for the NNS dapp.",
    "Ledger now connects through the Device Management Kit instead of the deprecated WebHID transport; the first page load is 12 KB smaller."
  ],
  "sources": [
    {
      "title": "Proposal 144655: Upgrade NNS Canister qoctq-giaaa-aaaaa-aaaea-cai",
      "url": "https://dashboard.internetcomputer.org/proposal/144655"
    },
    {
      "title": "nns-dapp release proposal-144655",
      "url": "https://github.com/dfinity/nns-dapp/releases/tag/proposal-144655"
    },
    {
      "title": "feat(backend): make the nns-dapp discoverable by AI agents (#8113)",
      "url": "https://github.com/dfinity/nns-dapp/pull/8113"
    },
    {
      "title": "feat(ledger): connect to the Ledger device through the Device Management Kit (#8116)",
      "url": "https://github.com/dfinity/nns-dapp/pull/8116"
    },
    {
      "title": "Service discoverability | ICP Developer Docs",
      "url": "https://docs.internetcomputer.org/guides/frontends/service-discoverability/"
    }
  ],
  "content_markdown": "NNS proposal 144655, published on October 30, 2026, upgrades the NNS dapp canister `qoctq-giaaa-aaaaa-aaaea-cai` to commit `d5a09886c5698999e0508a684a87fe0bdf701fc7`, which makes the dapp discoverable by AI agents through ICP MCP and moves Ledger hardware wallet support to Ledger's Device Management Kit. Neuron holders should verify the wasm hash before voting, and teams building agents can use the NNS dapp as a reference for the service discoverability layout.\n\n## What changed in proposal 144655\n\nThe proposal installs a wasm with sha256 hash `b83bc43862b91874ba06cb071e7b8cec33d7c782b814a0eca7f032d3192d5447`, built by GitHub Actions run `40577621041`. The matching GitHub release, tagged `proposal-144655`, lists the same commit and hash for `nns-dapp.wasm.gz`. The change log has two entries:\n\n- **Added:** \"Make the NNS dapp discoverable by AI agents, also through ICP MCP.\"\n- **Changed:** connect to the Ledger device through the Ledger Device Management Kit, which replaces the old transport that Ledger deprecated.\n\nThe commit log covers ten commits from `906b1cfb3` to `d5a09886c`. Besides the two features, it includes release and CI fixes: the release script now checks the wasm hash against the CI build log (#8020), `snsdemo` is pinned to a commit hash instead of a mutable tag (#8019), and the nightly and tag workflows get least-privilege permissions (#8055). It also bumps `candid` from 0.10.38 to 0.10.39 and updates IC Cargo dependencies to `release-2026-10-22_03-29-base`.\n\n### AI agent discovery (PR #8113)\n\nPR #8113 follows the ICP service discoverability guide. According to the PR, the canister now:\n\n- serves `/.well-known/ic-architecture` as `application/json`. The canister builds this manifest from its own canister ID at install and upgrade, and it lists only the nns-dapp canister;\n- exposes a new `get_api_doc` query method that returns a markdown guide (`rs/backend/src/api_doc.md`). A test checks that the guide names every method in `nns-dapp.did`;\n- takes a new `II_DERIVATION_ORIGIN` install argument, set only for mainnet, and serves it at `/.well-known/ii-derivation-origin` as `text/plain`. An agent that starts from `nns.internetcomputer.org` then gets the same principal as the web app.\n\nThe canister serves the two well-known files only when `II_DERIVATION_ORIGIN` is set, so beta, test and local deployments are not discoverable. An e2e test checks that a local deployment serves neither file.\n\nThe PR also states the legal effect: serving `/.well-known/ic-architecture` opts the app into ICP MCP and accepts the ICP MCP App Operator Terms v1.1, starting from the release that ships it. The guide says ICP MCP reads canister metadata or calls methods only on canisters listed in a valid manifest.\n\n### Ledger Device Management Kit (PR #8116)\n\nPR #8116 removes `@ledgerhq/hw-transport-webhid` and adds `@ledgerhq/device-management-kit` and `@ledgerhq/device-transport-kit-web-hid`. `LedgerIdentity.connect` now opens a DMK session wrapped in `DMKTransport`. The PR says the browser asks for the device only once and reuses it after that, the session closes 5 s after the last operation, and the DMK code loads only when a user connects a Ledger. The PR reports a first page load 12 KB smaller than before.\n\n## Who is affected and why it matters\n\n| Group | What changes for them |\n|---|---|\n| NNS voters | A frontend upgrade to vote on. It also opts the NNS dapp into the ICP MCP App Operator Terms v1.1. |\n| Ledger hardware wallet users | Same flows (transfer ICP, stake, dissolve, add a hotkey) over a new transport. One device prompt per browser. |\n| AI agent developers | An agent given only the NNS dapp URL can find the canister ID, read its Candid and call `get_api_doc`. |\n| ICP app teams | A production example of service discoverability Layers 1, 3 and 5 inside one Rust canister. |\n\nFor agent builders, an agent no longer needs a hard-coded canister ID for the NNS dapp, and the derivation origin file lets it act under the user's existing NNS dapp principal, so the dapp's current access control still applies.\n\nFor Ledger users, the old transport is deprecated and `@zondax/ledger-js` warns that its next major version rejects legacy transports, so this switch keeps hardware wallet support working. The PR author tested with a Nano S in Chrome on localhost against mainnet. The PR notes that a device test on beta with a real Ledger was still pending when it was opened.\n\n## What to do now\n\n**1. Verify the build before you vote.** These commands come from the proposal and run from the root of the nns-dapp repo:\n\n```bash\ngit fetch\ngit checkout \"d5a09886c5698999e0508a684a87fe0bdf701fc7\"\ngit merge-base --is-ancestor HEAD origin/main && echo \"OK\" || echo \"Commit is not on main branch!\"\n./scripts/docker-build\nsha256sum nns-dapp.wasm.gz\n# expect b83bc43862b91874ba06cb071e7b8cec33d7c782b814a0eca7f032d3192d5447\n```\n\n**2. Check the install argument.** This release adds `II_DERIVATION_ORIGIN` to the mainnet arguments. Read the text file and compare its hash with the proposal's `arg_hash`:\n\n```bash\ncat nns-dapp-arg-mainnet.did\ndidc encode \"$(cat nns-dapp-arg-mainnet.did)\" | xxd -r -p | sha256sum\n```\n\n**3. After execution, run the discoverability checks.** These are the acceptance tests from the service discoverability guide, with the app host filled in:\n\n```bash\ncurl -s https://nns.internetcomputer.org/.well-known/ic-architecture | jq '.canisters[].id'\nicp canister metadata qoctq-giaaa-aaaaa-aaaea-cai candid:service -e ic\ncurl -sf https://nns.internetcomputer.org/.well-known/ii-derivation-origin || echo \"default\"\n```\n\nThe first command should return only `qoctq-giaaa-aaaaa-aaaea-cai`, and the Candid output should list `get_api_doc`.\n\n**4. Copy the pattern for your own app.** The guide's checklist: generate `/.well-known/ic-architecture` at deploy time, since canister IDs differ per network. Exclude `/.well-known/*` from the SPA catch-all rewrite, keep `candid:service` metadata, expose `getApiDoc` or `get_api_doc`, and publish `/.well-known/ii-derivation-origin` only if you use a custom derivation origin. Like the NNS dapp, you can skip the files on non-mainnet deployments so test canisters stay hidden from agents.\n\n## Caveats\n\nThe discovery files appear only after the proposal is adopted and executed. Check the proposal page for the vote result. Publishing the manifest is an opt-in to the ICP MCP App Operator Terms, so app teams should read the terms before shipping the same files. Ledger testing in the PR was done on a Nano S. Other device models were not listed.",
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