> ## 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. # Root > Minimal liveness response. Not registered under any router file, defined directly in packages/api/src/app.ts, ahead of every mounted route. Requires caller authentication, like every route except GET /health. See the security scheme above. ## OpenAPI ````yaml /openapi.bundled.yaml get / 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 GET /health.** 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 email: support@parmana.ai license: name: Apache-2.0 identifier: Apache-2.0 servers: - 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: System description: Operational endpoints paths: /: get: tags: - System summary: Root description: > Minimal liveness response. Not registered under any router file, defined directly in packages/api/src/app.ts, ahead of every mounted route. Requires caller authentication, like every route except GET /health. See the security scheme above. operationId: getRoot responses: '200': description: Service is responding. content: application/json: schema: $ref: '#/components/schemas/root-response.schema' examples: root: summary: Real captured response value: name: Parmana status: UP '401': $ref: '#/components/responses/Unauthorized' components: schemas: root-response.schema: $schema: https://json-schema.org/draft/2020-12/schema $id: https://schemas.parmana.ai/responses/root-response.schema.json title: Root Response description: >- Response returned by GET / (packages/api/src/app.ts). Distinct from, and simpler than, GET /health and GET /version; it is not registered under any router file. type: object additionalProperties: false required: - name - status properties: name: type: string enum: - Parmana status: type: string enum: - UP examples: - name: Parmana status: UP error.schema: $schema: https://json-schema.org/draft/2020-12/schema $id: https://schemas.parmana.ai/common/error.schema.json 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 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 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 except GET /health. See /api-reference/authentication. ````