> ## Documentation Index > Fetch the complete documentation index at: https://docs.parmanasystems.com/llms.txt > Use this file to discover all available pages before exploring further. # List approver keys > Every approver key the server trusts, or trusted, to sign approvals for policies that declare approvalSignals. ## OpenAPI ````yaml openapi.bundled.yaml GET /approval-issuers openapi: 3.1.0 info: title: Parmana API version: 1.0.0 description: > Parmana is an Execution Trust Infrastructure that ensures there is no gap between what humans decide and what AI systems do. The API enables creation, execution, verification, replay, and auditing of Business Transactions through cryptographically verifiable Execution Trust Records. **Every route requires a caller bearer key**, except the liveness/readiness probes and documentation/verification routes that must be reachable with no credential: GET /health, GET /ready, GET /openapi.yaml, GET /documentation, GET /reference, POST /refusal/verify, POST /execution-intents/verify, POST /audit/verify, GET /keys/{keyId}, and GET /.well-known/jwks.json. Send `Authorization: Bearer ` on every other request. Keys are issued by `scripts/generate-api-key.ts` and configured server-side via `PARMANA_API_KEYS`; only a hash of each key is ever held by the server, verified in constant time. A missing or invalid credential returns 401 before a Business Transaction is even constructed, independent of Policy evaluation and gateway attestation, see `packages/api/src/middleware/caller-auth.ts` and [Authentication](/api-reference/authentication). Local development may set `PARMANA_AUTH_DISABLED=true` to skip this middleware entirely; that flag must never be set in a real deployment. contact: name: Parmana Systems email: founder@parmanasystems.com license: name: Proprietary, source-available for evaluation only, see LICENSE url: https://github.com/pavancharak/AgentLabsBuildathon/blob/main/LICENSE servers: - url: https://parmana-api-real.vercel.app description: >- Production (real, deployed instance -- the docs site playground uses this by default) - url: http://localhost:3000 description: Local (packages/api, PORT env var, default 3000) security: - bearerAuth: [] tags: - name: Execution description: >- Executes a Business Transaction through the complete Execution Trust pipeline - name: Transactions description: Business Transaction creation and retrieval - name: Verification description: Deterministic verification of an Execution Trust Record - name: Receipts description: Cryptographically signed Execution Trust Receipts - name: Trust Records description: Execution Trust Record retrieval - name: Replay description: Deterministic replay of a recorded Execution Trust Record - name: Policies description: Policy existence/readability check - name: Policy Governance description: Maker-checker proposal, listing, approval, and rejection of policy changes - name: Approvers description: Maker-checker for the keys trusted to sign approvals, without a deploy - name: Refusal Records description: >- Durable, signed evidence that a policy decision rejected a transaction (RFC-0021) - name: Execution Intents description: >- A signed statement, stored before an action is released, of exactly what is about to be released, plus the operator tools to find and repair a released action that has no signed Trust Record (ADR-0012) - name: Audit description: >- Signed caller-authentication audit events, independently third-party-verifiable - name: System description: Operational endpoints paths: /approval-issuers: get: tags: - Approvers summary: List approver keys description: > Every approver key the server trusts, or trusted, to sign approvals for policies that declare approvalSignals. Keys listed in the server code come first (source code), then keys added through approver changes (source governed). Revoked keys are included and marked, so the list explains every approval ever verified. Requires a human credential (credentialHolderType USER). operationId: listApprovalIssuers responses: '200': description: The approver keys. content: application/json: schema: $ref: '#/components/schemas/approval-issuers-list-response.schema' examples: codeAndGoverned: summary: Real captured response value: issuers: - approverId: manager-charak1987 keyId: manager-charak1987-key-1 revoked: false source: code publicKeyPem: > -----BEGIN PUBLIC KEY----- MCowBQYDK2VwAyEAVMs/E6N2XEQfEEWlwMg0wRS0L4svbZ0W785aAxUP78M= -----END PUBLIC KEY----- - approverId: manager-priya keyId: manager-priya-key-1 publicKeyPem: > -----BEGIN PUBLIC KEY----- MCowBQYDK2VwAyEAEDuWHf+bbRY7J/Mr0RVmAKYHH5CDijTWhdnISXWLD6Y= -----END PUBLIC KEY----- revoked: false addedByChangeId: ba7c5827-5844-4069-94fc-9b438ef08f78 addedAt: '2026-09-28T19:05:59.738Z' source: governed '401': $ref: '#/components/responses/Unauthorized' '403': description: The caller is not a human credential (NON_HUMAN_CALLER_DENIED). content: application/json: schema: $ref: '#/components/schemas/error.schema' components: schemas: approval-issuers-list-response.schema: title: Approver Keys List Response description: >- Response of GET /approval-issuers: keys in code first, then keys added through approver changes, revoked ones included. type: object additionalProperties: false required: - issuers properties: issuers: type: array items: $ref: '#/components/schemas/approval-issuer.schema' error.schema: title: Error Response description: >- Shared error envelope produced by packages/api/src/middleware/error-handler.ts and by every route's inline validation checks. error is always a plain human-readable string (never a nested object). code is present only when the failure was a RuntimeError subclass reaching the centralized error handler (VerificationFailedError, ReceiptGenerationError, or an uncategorized RuntimeError); it is absent from every inline route-level check (businessTransactionId format/required checks) and from BusinessTransactionValidationError, PolicyValidationError, SignalValidationError, PolicyNotFoundError, DuplicateBusinessTransactionError, and the generic 500 fallback. POST /policies/validate does NOT use this envelope at all. See its own response schema. For the triggering condition and recommended caller action behind any specific error/code/status combination, see the Error catalog at /api-reference/error-catalog. type: object additionalProperties: false required: - error properties: error: type: string description: Human-readable error message. code: type: string description: >- Stable machine-readable error code. Only present for errors that reach the handler as a RuntimeError. examples: - RUNTIME_ERROR - VERIFICATION_FAILED - RECEIPT_GENERATION_FAILED - POLICY_DENIED - CAPABILITY_NOT_ALLOWED - RATE_LIMITED - AUDIT_UNAVAILABLE - SIGNING_UNAVAILABLE - CONNECTOR_NOT_REGISTERED - EXECUTION_RECORD_INCOMPLETE - EXECUTION_INTENT_UNAVAILABLE - EXECUTION_INTENT_RESULT_NOT_RECORDED - EXECUTION_INTENT_NOT_FOUND - EXECUTION_INTENTS_NOT_ENABLED - EXECUTION_INTENT_NOT_RESOLVABLE - EXECUTION_INTENT_RESOLUTION_INVALID - NON_HUMAN_CALLER_DENIED examples: - error: businessTransactionId must be a valid UUID. - error: >- Business Transaction 'eed2a972-1bf5-4166-8472-761f76fbf1b2' already exists. - error: >- Execution rejected: Vendor payment rejected because the assessed payment risk exceeds the maximum permitted threshold. code: RUNTIME_ERROR approval-issuer.schema: title: Approver Key description: >- An approver key the server trusts, or trusted, to sign approvals. source is code for keys listed in the server's code, and governed for keys added through approver changes. type: object additionalProperties: false required: - approverId - keyId - publicKeyPem - revoked - source properties: approverId: type: string keyId: type: string publicKeyPem: type: string description: Ed25519 public key, PEM (SPKI). revoked: type: boolean description: 'true: every approval signed with this key is refused.' source: type: string enum: - code - governed description: >- code: listed in createApprovalIssuerRegistry.ts, changed only by a deploy. governed: added through POST /approval-issuers/changes. addedByChangeId: type: string description: 'governed only: the approved change that added it.' addedAt: type: string format: date-time description: governed only. revokedByChangeId: type: string description: 'governed and revoked only: the approved change that revoked it.' revokedAt: type: string format: date-time description: governed and revoked only. responses: Unauthorized: description: >- Missing or invalid caller credential (StaticKeyAuthenticator returned no identity). Real captured response, packages/api/src/middleware/caller-auth.ts. content: application/json: schema: $ref: '#/components/schemas/error.schema' examples: authRequired: summary: Real captured response, missing or invalid Authorization header value: error: authentication required securitySchemes: bearerAuth: type: http scheme: bearer description: > Caller API key issued by scripts/generate-api-key.ts. Sent as Authorization: Bearer . Verified against a stored SHA-256 hash in constant time by packages/api/src/auth/StaticKeyAuthenticator.ts. Required on every route not listed as exempt in this document's top-level description. See /api-reference/authentication. ````