---
title: "List agent versions for a project"
method: GET
path: "/v1/platform/sessions/{sessionID}/agent-versions"
tags: ["sessions"]
---

# List agent versions for a project

`GET /v1/platform/sessions/{sessionID}/agent-versions`

Returns all agent versions (commit SHAs) seen in the given tracing project, ordered by first_seen_at descending.

## Path parameters

- `sessionID` string, required

## Response `200`

Agent versions

- TracerSessionsAgentVersionResponse[]
  - `commit_sha` string
  - `first_seen_at` string

## Other responses

- `400` — Invalid session ID
- `401` — Unauthorized

---

[API](https://skmtc.net/langchain-ai/apis/langsmith.md) · [All operations](https://skmtc.net/langchain-ai/apis/langsmith/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/langchain-ai/langsmith/revisions/a0acb3a6a101/schema)