> ## Documentation Index > Fetch the complete documentation index at: https://docs.postinger.dev/llms.txt > Use this file to discover all available pages before exploring further. # Verify API credentials and inspect project, expiry and effective permissions > Requires a valid active API key, with no resource permission required. Does not return credentials. ## OpenAPI ````yaml /api-reference/openapi.json get /auth/session openapi: 3.1.0 info: title: Postinger Public API version: 1.0.0 description: >- Project-scoped API keys. JSON bodies up to 100 KB. Upload media directly to the returned R2 URL, then complete the upload. Rate limits are shared by all keys in the project. Scheduling requires posts-publish in addition to posts-write. A paused key returns 403 with error.code api_key_paused. servers: - url: https://api.dev.postinger.dev/public/v1 security: [] paths: /auth/session: get: tags: - Authentication summary: >- Verify API credentials and inspect project, expiry and effective permissions description: >- Requires a valid active API key, with no resource permission required. Does not return credentials. operationId: getSession responses: '200': description: Success headers: X-Request-Id: schema: type: string description: Request identifier for troubleshooting. Cache-Control: schema: type: string const: no-store X-RateLimit-Limit: schema: type: integer description: Project-wide limit, when supplied by the rate limiter. X-RateLimit-Remaining: schema: type: integer description: Remaining project requests, when supplied by the rate limiter. content: application/json: schema: type: object required: - data - meta properties: data: $ref: '#/components/schemas/Session' meta: type: object required: - requestId properties: requestId: type: string '400': description: Request failed. Check error.code and meta.requestId. headers: X-Request-Id: schema: type: string description: Request identifier for troubleshooting. Cache-Control: schema: type: string const: no-store X-RateLimit-Limit: schema: type: integer description: Project-wide limit, when supplied by the rate limiter. X-RateLimit-Remaining: schema: type: integer description: Remaining project requests, when supplied by the rate limiter. content: application/json: schema: type: object required: - error - meta properties: error: type: object required: - code - message properties: code: type: string message: anyOf: - type: string - type: array items: type: string meta: type: object required: - requestId properties: requestId: type: string '401': description: Request failed. Check error.code and meta.requestId. headers: X-Request-Id: schema: type: string description: Request identifier for troubleshooting. Cache-Control: schema: type: string const: no-store X-RateLimit-Limit: schema: type: integer description: Project-wide limit, when supplied by the rate limiter. X-RateLimit-Remaining: schema: type: integer description: Remaining project requests, when supplied by the rate limiter. content: application/json: schema: type: object required: - error - meta properties: error: type: object required: - code - message properties: code: type: string message: anyOf: - type: string - type: array items: type: string meta: type: object required: - requestId properties: requestId: type: string '403': description: Request failed. Check error.code and meta.requestId. headers: X-Request-Id: schema: type: string description: Request identifier for troubleshooting. Cache-Control: schema: type: string const: no-store X-RateLimit-Limit: schema: type: integer description: Project-wide limit, when supplied by the rate limiter. X-RateLimit-Remaining: schema: type: integer description: Remaining project requests, when supplied by the rate limiter. content: application/json: schema: type: object required: - error - meta properties: error: type: object required: - code - message properties: code: type: string message: anyOf: - type: string - type: array items: type: string meta: type: object required: - requestId properties: requestId: type: string '404': description: Request failed. Check error.code and meta.requestId. headers: X-Request-Id: schema: type: string description: Request identifier for troubleshooting. Cache-Control: schema: type: string const: no-store X-RateLimit-Limit: schema: type: integer description: Project-wide limit, when supplied by the rate limiter. X-RateLimit-Remaining: schema: type: integer description: Remaining project requests, when supplied by the rate limiter. content: application/json: schema: type: object required: - error - meta properties: error: type: object required: - code - message properties: code: type: string message: anyOf: - type: string - type: array items: type: string meta: type: object required: - requestId properties: requestId: type: string '409': description: Request failed. Check error.code and meta.requestId. headers: X-Request-Id: schema: type: string description: Request identifier for troubleshooting. Cache-Control: schema: type: string const: no-store X-RateLimit-Limit: schema: type: integer description: Project-wide limit, when supplied by the rate limiter. X-RateLimit-Remaining: schema: type: integer description: Remaining project requests, when supplied by the rate limiter. Retry-After: schema: type: integer description: Present for idempotency_in_progress; wait before retrying. content: application/json: schema: type: object required: - error - meta properties: error: type: object required: - code - message properties: code: type: string message: anyOf: - type: string - type: array items: type: string meta: type: object required: - requestId properties: requestId: type: string '413': description: >- JSON body exceeds the 100 KB limit. This can be rejected before the controller, so the public error envelope is not guaranteed. '429': description: Request failed. Check error.code and meta.requestId. headers: X-Request-Id: schema: type: string description: Request identifier for troubleshooting. Cache-Control: schema: type: string const: no-store X-RateLimit-Limit: schema: type: integer description: Project-wide limit, when supplied by the rate limiter. X-RateLimit-Remaining: schema: type: integer description: Remaining project requests, when supplied by the rate limiter. Retry-After: schema: type: integer description: Seconds before retrying. content: application/json: schema: type: object required: - error - meta properties: error: type: object required: - code - message properties: code: type: string message: anyOf: - type: string - type: array items: type: string meta: type: object required: - requestId properties: requestId: type: string '500': description: Request failed. Check error.code and meta.requestId. headers: X-Request-Id: schema: type: string description: Request identifier for troubleshooting. Cache-Control: schema: type: string const: no-store X-RateLimit-Limit: schema: type: integer description: Project-wide limit, when supplied by the rate limiter. X-RateLimit-Remaining: schema: type: integer description: Remaining project requests, when supplied by the rate limiter. content: application/json: schema: type: object required: - error - meta properties: error: type: object required: - code - message properties: code: type: string message: anyOf: - type: string - type: array items: type: string meta: type: object required: - requestId properties: requestId: type: string '503': description: Request failed. Check error.code and meta.requestId. headers: X-Request-Id: schema: type: string description: Request identifier for troubleshooting. Cache-Control: schema: type: string const: no-store X-RateLimit-Limit: schema: type: integer description: Project-wide limit, when supplied by the rate limiter. X-RateLimit-Remaining: schema: type: integer description: Remaining project requests, when supplied by the rate limiter. content: application/json: schema: type: object required: - error - meta properties: error: type: object required: - code - message properties: code: type: string message: anyOf: - type: string - type: array items: type: string meta: type: object required: - requestId properties: requestId: type: string security: - ApiKey: [] components: schemas: Session: $schema: https://json-schema.org/draft/2020-12/schema type: object properties: apiVersion: type: string const: v1 project: type: object properties: id: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ name: type: string required: - id - name key: type: object properties: 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)$ name: type: string expiresAt: 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|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$ required: - id - name - expiresAt permissions: type: array items: type: string required: - apiVersion - project - key - permissions securitySchemes: ApiKey: type: http scheme: bearer bearerFormat: Postinger API key ```` ## Related topics - [API quickstart](/api-reference/quickstart.md) - [Retries, limits, and errors](/guides/retries-and-errors.md) - [Authentication and permissions](/guides/authentication.md) - [Connect with MCP](/mcp/quickstart.md) - [CLI quickstart](/cli/quickstart.md) This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.