Opik REST API
The Opik REST API powers Comet's open-source LLM observability and evaluation platform. All methods are used by the Opik SDKs and UI to log and query traces, spans, datasets, experiments, prompts, feedback scores, optimizations, guardrails, and more. OpenAPI 3.1.0, 247 paths / 309 operations across 41 tags. Auth is via an API key in the "authorization" header (no Bearer prefix) plus a "Comet-Workspace" header on Opik Cloud; the open-source/self-hosted deployment requires no auth.
Documentation
Specifications
Other Resources
Overlay
https://raw.githubusercontent.com/api-evangelist/comet/refs/heads/main/overlays/comet-opik-overlay.yaml
ErrorCatalog
https://raw.githubusercontent.com/api-evangelist/comet/refs/heads/main/errors/comet-error-codes.yml
Conventions
https://raw.githubusercontent.com/api-evangelist/comet/refs/heads/main/conventions/comet-conventions.yml
DataModel
https://raw.githubusercontent.com/api-evangelist/comet/refs/heads/main/data-model/comet-data-model.yml
Conformance
https://raw.githubusercontent.com/api-evangelist/comet/refs/heads/main/conformance/comet-conformance.yml
Lifecycle
https://raw.githubusercontent.com/api-evangelist/comet/refs/heads/main/lifecycle/comet-lifecycle.yml
APIsJSON
https://raw.githubusercontent.com/api-evangelist/comet/refs/heads/main/apis.yml