aid: opik
name: Opik
description: >
  Opik is an open-source LLM evaluation, testing, and tracing platform developed
  by Comet ML that enables developers to debug, evaluate, and monitor LLM
  applications, RAG systems, and agentic workflows. The platform provides a REST
  API for logging traces and spans, running automated evaluations with LLM-as-a-judge
  metrics, managing datasets and experiments, and tracking production performance.
  Opik supports over 40 framework integrations including LangChain, LlamaIndex,
  and OpenAI, and is available as a self-hosted open-source deployment or as a
  managed cloud service on Comet's platform.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/opik/refs/heads/main/apis.yml
created: "2026-06-13"
modified: "2026-06-13"
specificationVersion: "0.19"
tags:
  - LLM
  - Evaluation
  - Observability
  - Tracing
  - Open Source
  - LLMOps
  - RAG
  - AI
  - Machine Learning
  - Monitoring
apis:
  - aid: opik:opik-rest-api
    name: Opik REST API
    description: >
      The Opik REST API provides programmatic access to all platform capabilities
      including logging traces and spans from LLM applications, managing datasets
      and experiment items, running evaluations, storing feedback scores, and
      accessing project data. The API is available for both the open-source
      self-hosted deployment and the managed Opik Cloud service, with authentication
      handled via API keys and workspace headers for cloud users.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://www.comet.com/docs/opik/reference/rest-api/overview
    baseURL: https://www.comet.com/opik/api/v1
    tags:
      - LLM
      - Tracing
      - Evaluation
      - Datasets
      - Experiments
    properties:
      - type: Documentation
        url: https://www.comet.com/docs/opik/reference/rest-api/overview
      - type: OpenAPI
        url: openapi/opik-rest-api-openapi.yml
common:
  - type: Website
    url: https://www.comet.com/site/products/opik/
  - type: Documentation
    url: https://www.comet.com/docs/opik/
  - type: GitHubOrg
    url: https://github.com/comet-ml
  - type: LinkedIn
    url: https://www.linkedin.com/company/comet-ml
  - type: Blog
    url: https://www.comet.com/site/blog/
  - type: Pricing
    url: https://www.comet.com/site/pricing/
  - type: StatusPage
    url: https://status.comet.com/
  - type: X
    url: https://x.com/cometml
  - type: Changelog
    url: https://www.comet.com/docs/opik/changelog
  - type: SDKDocumentation
    url: https://www.comet.com/docs/opik/python-sdk-reference/
  - type: GitHubRepository
    url: https://github.com/comet-ml/opik
  - type: Slack
    url: https://chat.comet.com
  - type: Plans
    url: plans/opik-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/opik-rate-limits.yml
  - type: FinOps
    url: finops/opik-finops.yml
  - type: Vocabulary
    url: vocabulary/opik-vocabulary.yml
  - type: JSONLDContext
    url: json-ld/opik-context.jsonld
  - type: JSONSchema
    url: json-schema/opik-trace.json
  - type: JSONSchema
    url: json-schema/opik-span.json
  - type: JSONSchema
    url: json-schema/opik-experiment.json
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com