hive-mcp-ledger-bridge

Hive Civilization — EIP-712 over USB/DMK ledger-bridge MCP server.

Implements the same signer-backend contract that shisa-ai/shisad exposes through contrib/ledger-bridge. Ledger is a partner. This server complements shisad — it does not replace it.

Partner Doctrine

No overlap. The hardware tier remains Ledger's. The runtime policy tier remains shisad's. Hive contributes IntentEnvelope construction, hash verification, confirmation-level policy, and settlement attestation — all above the PEP, without modifying the ConfirmationLevel enum or the signer-backend contract.

Related MCP server: Cryptair MCP Server

ConfirmationLevel Enum

From the shisa-ai/shisad specification:

This server uses the enum verbatim. No extensions, no invented tiers.

Tools

ledger_intent_envelope_create

Build a signed-ready IntentEnvelope. The server produces the EIP-712 domain separator and intent_envelope_hash — the hash is what the Ledger device signs.

{
  "intent_id": "uuid-or-did-fragment",
  "agent_did": "did:hive:0xabc...",
  "action": "transfer",
  "target": "0xRecipientAddress",
  "amount": "1000.00",
  "chain_id": 8453,
  "nonce": 1,
  "deadline": 1777699200,
  "verifying_contract": "0x0000000000000000000000000000000000000000"
}

Response includes envelope, intent_envelope_hash, domain_separator, and suggested_confirmation_level.

ledger_intent_envelope_verify

Supply an IntentEnvelope body and an intent_envelope_hash. Returns match: true|false and the recomputed hash.

ledger_confirmation_level_query

{ "action": "transfer", "amount_usd": 50000 }

Returns the integer level and name. Useful for pre-call policy checks before routing to the ledger-bridge.

ledger_signed_authorization_attest

Record a Hive-side attestation that a device returned an ECDSA signature at L3 or L4. This is not on-chain settlement — it is an audit record that the intent_envelope_hash was device-countersigned.

{
  "intent_envelope_hash": "0xabc...",
  "agent_did": "did:hive:0xabc...",
  "confirmation_level": 4,
  "ecdsa_signature": "0xsignatureHex..."
}

ledger_partner_directory

Returns the full partner directory with URLs, roles, and contact information.

Endpoints

Connect

MCP endpoint: https://hiveledgerbridge.onrender.com/mcp (pairs with shisa-ai/shisad contrib/ledger-bridge + future hive-ledger-attest backend)

JSON-RPC 2.0 — tools/list

curl -s -X POST https://hiveledgerbridge.onrender.com/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

JSON-RPC 2.0 — ledger_intent_envelope_create

curl -s -X POST https://hiveledgerbridge.onrender.com/mcp \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc":"2.0","id":2,"method":"tools/call",
    "params":{
      "name":"ledger_intent_envelope_create",
      "arguments":{
        "intent_id":"550e8400-e29b-41d4-a716-446655440000",
        "agent_did":"did:hive:0xabc",
        "action":"transfer",
        "target":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "chain_id":8453,
        "nonce":1,
        "deadline":1777699200
      }
    }
  }'

Integration with shisad

shisa-ai/shisad routes trusted_display_authorization (L4) intents through contrib/ledger-bridge — the daemon POSTs an IntentEnvelope plus intent_envelope_hash to the bridge, the user reviews on the Ledger device, and the ECDSA signature returns to the daemon.

This server speaks the same IntentEnvelope / intent_envelope_hash vocabulary. A shisad deployment can use ledger_intent_envelope_create upstream of the bridge call, ledger_intent_envelope_verify on the returned hash, and ledger_signed_authorization_attest to anchor the device signature as a Hive Spectral receipt.

Operator policy continues to control ConfirmationLevel through the standard tools."x".confirmation.level config — no new mechanism required.

Infrastructure

License

MIT — see LICENSE.

Contact: steve@thehiveryiq.com

Hive Civilization Directory

Part of the Hive Civilization — agent-native financial infrastructure.

• Endpoint Directory: https://thehiveryiq.com

• Live Leaderboard: https://hive-a2amev.onrender.com/leaderboard

• Revenue Dashboard: https://hivemine-dashboard.onrender.com

• Other MCP Servers: https://github.com/srotzin?tab=repositories&q=hive-mcp

Brand: #C08D23