# Freeplay Observability API

**Canonical:** https://apis.io/apis/freeplay/freeplay-observability-api/  
**Provider:** Freeplay — https://apis.io/providers/freeplay/  
**Base URL:** https://app.freeplay.ai/api/v2  
**Documentation:** https://docs.freeplay.ai/developer-resources/api-reference

Freeplay Observability API is one of 15 APIs that [Freeplay](https://apis.io/providers/freeplay/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Observability. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

The Observability API from Freeplay — 9 operation(s) for observability.

## Operations (10)

| Method | Path | Summary |
|---|---|---|
| PATCH | `/api/v2/projects/{project_id}/sessions/id/{session_id}/metadata` | Update Session Metadata |
| DELETE | `/api/v2/projects/{project_id}/sessions/{session_id}` | Delete Session |
| POST | `/api/v2/projects/{project_id}/sessions/{session_id}/completions` | Record Completion |
| POST | `/api/v2/projects/{project_id}/sessions/{session_id}/traces/id/{trace_id}` | Record Trace |
| PATCH | `/api/v2/projects/{project_id}/sessions/{session_id}/traces/id/{trace_id}` | Update Trace by ID |
| PATCH | `/api/v2/projects/{project_id}/sessions/{session_id}/traces/id/{trace_id}/metadata` | Update Trace Metadata |
| PATCH | `/api/v2/projects/{project_id}/sessions/{session_id}/traces/otel-span-id/{otel_span_id_hex}` | Update Trace by OTEL Span ID |
| POST | `/api/v2/projects/{project_id}/completions/{completion_id}` | Update Completion |
| POST | `/api/v2/projects/{project_id}/completion-feedback/id/{completion_id}` | Add Completion Feedback |
| POST | `/api/v2/projects/{project_id}/trace-feedback/id/{trace_id}` | Add Trace Feedback |

## Machine-readable artifacts (8)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/freeplay/refs/heads/main/openapi/freeplay-observability-api-openapi.yml
- **Documentation** — https://docs.freeplay.ai/docs/freeplay-sdk
- **APIReference** — https://docs.freeplay.ai/developer-resources/api-reference
- **PostmanCollection** — https://raw.githubusercontent.com/api-evangelist/freeplay/refs/heads/main/collections/freeplay.postman_collection.json
- **OpenCollection** — https://raw.githubusercontent.com/api-evangelist/freeplay/refs/heads/main/collections/freeplay.opencollection.json
- **Documentation** — https://docs.freeplay.ai/getting-started/integrate
- **Documentation** — https://docs.freeplay.ai/docs/quick-start
- **Documentation** — https://freeplay.ai/blog/llm-evaluation

## Other Freeplay APIs (12)

- [Freeplay Agents API](https://apis.io/apis/freeplay/freeplay-agents-api/)
- [Freeplay Prompt Templates API](https://apis.io/apis/freeplay/freeplay-prompt-templates-api/)
- [Freeplay Test Runs API](https://apis.io/apis/freeplay/freeplay-test-runs-api/)
- [Freeplay Agent Datasets API](https://apis.io/apis/freeplay/freeplay-agent-datasets-api/)
- [Freeplay Configuration API](https://apis.io/apis/freeplay/freeplay-configuration-api/)
- [Freeplay Evaluation Criteria API](https://apis.io/apis/freeplay/freeplay-evaluation-criteria-api/)
- [Freeplay Insights API](https://apis.io/apis/freeplay/freeplay-insights-api/)
- [Freeplay Models API](https://apis.io/apis/freeplay/freeplay-models-api/)
- [Freeplay Prompt Datasets API](https://apis.io/apis/freeplay/freeplay-prompt-datasets-api/)
- [Freeplay Prompt Optimization API](https://apis.io/apis/freeplay/freeplay-prompt-optimization-api/)
- [Freeplay Review Queues API](https://apis.io/apis/freeplay/freeplay-review-queues-api/)
- [Freeplay Saved Searches API](https://apis.io/apis/freeplay/freeplay-saved-searches-api/)

## Tags

Observability

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/freeplay/freeplay-observability-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/freeplay/.