# DeepEval vs LangWatch (slim)

> LangWatch and DeepEval score within a point of each other for evaluations, 65.5 and 64.7 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/deepeval-vs-langwatch.md (~2,750 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/deepeval-vs-langwatch.json · canonical https://www.anchorterminal.com/compare/deepeval-vs-langwatch
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

LangWatch and DeepEval score within a point of each other on agent readiness, 65.5 (B) and 64.7 (B). DeepEval leads on reliability, agent ergonomics and payments & pricing. Both do evaluations.

- DeepEval: B 64.7, rank #343 of 950 · https://www.anchorterminal.com/tools/deepeval.min.md
- LangWatch: B 65.5, rank #318 of 950 · https://www.anchorterminal.com/tools/langwatch.min.md
- DeepEval, good for Teams that want evaluations in pytest or a CLI on their own machines, with agent, RAG, multi-turn and MCP metrics. Ahead on Reliability, 59 against 53; Agent ergonomics, 72 against 67; Payments & pricing, 60 against 40.
- 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 47; Maintenance & community, 90 against 83; Transparency & trust, 75 against 63. Also A hosted endpoint, with nothing to install; Runs on your own machine.

| Category | DeepEval | LangWatch |
| --- | --- | --- |
| Reliability (16%) | 59 | 53 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 78 | 87 |
| Agent ergonomics (13%) | 72 | 67 |
| Security & auth (14%) | 47 | 71 |
| Payments & pricing (10%) | 60 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 83 | 90 |
| Transparency & trust (7%) | 63 | 75 |

| Fact (where they differ) | DeepEval | LangWatch |
| --- | --- | --- |
| Kind | SDK + MCP | HTTP API |
| Vendor | Confident AI, Inc. | Reasoning Engine B.V. (LangWatch) |
| Hosted endpoint | no (local only) | `https://app.langwatch.ai` |
| Transports |  | HTTP, Streamable HTTP, SSE (legacy), stdio |
| Price for evaluations | not published | $0.0546 per 1M tokens |
| Licence | Apache 2.0 for the Python and TypeScript packages and the agent skills. Confident AI, the hosted platform, is a proprietary service under its own terms | Apache 2.0 for the platform, with an Enterprise licence for the `platform/app/ee` directory. The SDKs and the MCP server are MIT |
| Tools exposed | none | 101 |
| Terms last updated | no document linked | 2026-09-22 |
| Privacy policy last updated | no document linked | 2026-09-29 |
| 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 | 19k stars, 35k npm/wk, 736k PyPI/wk | 4.9k stars, 50k npm/wk, 87k PyPI/wk |