openapi: 3.2.0
info:
  title: Agenta Open Telemetry API
  description: Agenta is an open-source LLMOps platform for prompt management, LLM evaluation, and LLM observability.
  termsOfService: https://agenta.ai/terms
  contact:
    name: Agenta Support
    url: https://agenta.ai/
    email: team@agenta.ai
  license:
    name: MIT
    url: https://github.com/Agenta-AI/agenta/blob/main/LICENSE
  version: '1.0'
servers:
- url: https://cloud.agenta.ai/api
  description: Agenta Cloud (US)
- url: https://eu.cloud.agenta.ai/api
  description: Agenta Cloud (EU)
security:
- ApiKeyAuth: []
tags:
- name: Open Telemetry
  description: Ingest LLM telemetry over OTLP/HTTP.
paths:
  /otlp/v1/traces:
    post:
      operationId: ingestOtlpTraces
      tags:
      - Open Telemetry
      summary: Ingest traces via OpenTelemetry OTLP/HTTP
      description: OpenTelemetry OTLP/HTTP trace ingestion endpoint. Send OTLP-formatted spans (typically protobuf or JSON over HTTP) here to record LLM telemetry. This is the recommended way to push observability data from instrumented applications and OpenTelemetry exporters.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/OtlpExportTraceServiceRequest'
          application/x-protobuf:
            schema:
              type: string
              format: binary
      responses:
        '200':
          description: Export accepted.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/OtlpExportTraceServiceResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
    get:
      operationId: otlpStatusCheck
      tags:
      - Open Telemetry
      summary: Status check for the OTLP traces endpoint
      responses:
        '200':
          description: The endpoint is available.
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    Error:
      type: object
      properties:
        detail:
          oneOf:
          - type: string
          - type: object
    OtlpExportTraceServiceRequest:
      type: object
      description: OTLP ExportTraceServiceRequest payload (resource spans). Mirrors the OpenTelemetry trace protocol; see the OpenTelemetry specification for the full structure.
      properties:
        resourceSpans:
          type: array
          items:
            type: object
            additionalProperties: true
    OtlpExportTraceServiceResponse:
      type: object
      properties:
        partialSuccess:
          type: object
          properties:
            rejectedSpans:
              type: integer
            errorMessage:
              type: string
  responses:
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    ApiKeyAuth:
      type: http
      scheme: bearer
      description: 'Agenta API key sent in the Authorization header. Generate keys from the Agenta web app under Settings > API keys. The value is passed as `Authorization: ApiKey <key>` (Bearer-style header credential).'