# LangWatch vs MLflow Tracing (slim)

> LangWatch scores 65.5 (B) to MLflow Tracing's 61.2 (C) for agent tracing. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/langwatch-vs-mlflow-tracing.md (~2,750 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/langwatch-vs-mlflow-tracing.json · canonical https://www.anchorterminal.com/compare/langwatch-vs-mlflow-tracing
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

LangWatch scores 65.5 (B) on agent readiness against MLflow Tracing's 61.2 (C), and leads in 4 of 7 scored categories. MLflow Tracing leads on reliability, agent ergonomics and payments & pricing. Both do agent tracing.

- LangWatch: B 65.5, rank #318 of 950 · https://www.anchorterminal.com/tools/langwatch.min.md
- MLflow Tracing: C 61.2, rank #476 of 950 · https://www.anchorterminal.com/tools/mlflow-tracing.min.md
- LangWatch, good for Teams that want tracing, evaluations and simulated-user agent tests in one open-source product, hosted in the EU or self-hosted, and that drive it from a coding assistant through MCP or the CLI. Ahead on Schema & documentation, 87 against 78; Security & auth, 71 against 40; Transparency & trust, 75 against 62. Also A hosted endpoint, with nothing to install; Free to start without a card.
- MLflow Tracing, good for Teams that already run MLflow or want Apache-2.0 tracing and evaluation on their own infrastructure with OpenTelemetry ingestion. Ahead on Reliability, 76 against 53; Agent ergonomics, 72 against 67; Payments & pricing, 60 against 40.

| Category | LangWatch | MLflow Tracing |
| --- | --- | --- |
| Reliability (16%) | 53 | 76 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 87 | 78 |
| Agent ergonomics (13%) | 67 | 72 |
| Security & auth (14%) | 71 | 40 |
| Payments & pricing (10%) | 40 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 90 | 88 |
| Transparency & trust (7%) | 75 | 62 |

| Fact (where they differ) | LangWatch | MLflow Tracing |
| --- | --- | --- |
| Vendor | Reasoning Engine B.V. (LangWatch) | MLflow Project (LF Projects, LLC) |
| Hosted endpoint | `https://app.langwatch.ai` | no (local only) |
| Transports | HTTP, Streamable HTTP, SSE (legacy), stdio | stdio, HTTP |
| Pricing | Freemium | Free |
| Licence | Apache 2.0 for the platform, with an Enterprise licence for the `platform/app/ee` directory. The SDKs and the MCP server are MIT | Apache-2.0 |
| Tools exposed | 101 | 26 |
| Last release | 2026-10-02 | 2026-10-06 |
| Terms last updated | 2026-09-22 | no document linked |
| Privacy policy last updated | 2026-09-29 | no document linked |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | yes |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | not found in the text |  |
| Popularity | 4.9k stars, 50k npm/wk, 87k PyPI/wk | 28k stars |