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Rotate the signing key for this agent’s sub-vault. Always requires principal step-up. Completes atomically with a policy_version bump.

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Metadata

FieldValue
Namevault.rotateSigner
Categorytreasury
Required scopetreasury:rotate-signer
Idempotency key requiredno

​
Annotations

AnnotationValue
TitleRotate Vault Signer
Read-onlyno
Destructiveyes
Idempotentno
Open-worldno
Requires human approvalyes (step-up)

​
Input schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "new_signer_public_key": {
      "type": "string",
      "minLength": 1
    },
    "reason": {
      "default": "scheduled_rotation",
      "type": "string",
      "enum": [
        "scheduled_rotation",
        "compromised_key",
        "user_request",
        "device_change"
      ]
    },
    "step_up_sigil": {
      "type": "string",
      "minLength": 1
    }
  },
  "required": [
    "new_signer_public_key",
    "reason"
  ],
  "additionalProperties": false
}

​
Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "proposal_id": {
      "type": "string",
      "format": "uuid",
      "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"
    },
    "new_policy_version": {
      "type": "integer",
      "minimum": 0,
      "maximum": 9007199254740991
    },
    "enqueued_at": {
      "type": "string",
      "format": "date-time",
      "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$"
    }
  },
  "required": [
    "proposal_id",
    "new_policy_version",
    "enqueued_at"
  ],
  "additionalProperties": false
}

​
Auth

Caller’s grant must include the treasury:rotate-signer scope. Grants whose scope set is a superset of the required scope are accepted.

​
Request examples

# First call — no sigil: server returns step_up_url
curl -X POST https://mcp.glide.co/mcp/treasury \
  -H "Authorization: Bearer $GLIDE_GRANT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "vault.rotateSigner",
    "params": {
      "new_signer_public_key": "0x04a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
      "reason": "scheduled_rotation"
    }
  }'

# Second call — with redeemed sigil
curl -X POST https://mcp.glide.co/mcp/treasury \
  -H "Authorization: Bearer $GLIDE_GRANT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 2,
    "method": "vault.rotateSigner",
    "params": {
      "new_signer_public_key": "0x04a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2",
      "reason": "scheduled_rotation",
      "step_up_sigil": "eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9..."
    }
  }'

​
Response examples

Step-up required (always on first call) 
{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32003,
    "message": "signer rotation requires principal biometric approval",
    "data": {
      "reason_id": "step_up_required",
      "step_up_url": "https://app.glide.co/step-up/confirm?sigil=eyJhbGci..."
    }
  }
}
Success (after sigil redemption) 
{
  "jsonrpc": "2.0",
  "id": 2,
  "result": {
    "proposal_id": "f1e2d3c4-b5a6-4987-8765-432100fedcba",
    "new_policy_version": 12,
    "enqueued_at": "2026-05-04T14:30:00Z"
  }
}

​
Errors

Codereason_idMeaning
-32000unauthenticatedBearer token missing or expired.
-32001unauthorizedGrant does not include treasury:rotate-signer.
-32003step_up_requiredStep-up is always required. data.step_up_url contains the biometric approval URL.
-32602step_up_sigil_invalidSigil was already redeemed, expired, or minted for a different action (reason mismatch).
-32602invalid_paramsnew_signer_public_key is empty or malformed.
-32603internal_errorTransient fault. Retry from step 1 (get a fresh sigil).

​
Step-up flow

vault.rotateSigner always requires principal step-up. There is no threshold — every rotation, including scheduled ones, requires biometric approval. The sigil is bound to the reason field, so a sigil minted for grant_issue is rejected here.
  1. Call vault.rotateSigner with new_signer_public_key and reason. The server always returns -32003.
  2. Redirect the principal to data.step_up_url (Privy biometric). On success, Glide mints a one-time sigil bound to reason: "rotate_signer".
  3. Re-submit with step_up_sigil: "<sigil>". The server verifies the sigil’s expected_reason matches "rotate_signer" and that it was not already redeemed.
  4. On success, a multisig proposal is submitted on-chain. proposal_id can be tracked in the Actions inbox. new_policy_version is the post-rotation policy version.