# Baserun vs DeepEval

> DeepEval scores 64.7 (B) to Baserun's 7 (F) for agent tracing. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/baserun-vs-deepeval
- Markdown: https://www.anchorterminal.com/compare/baserun-vs-deepeval.md (~2,450 tokens)
- Slim: https://www.anchorterminal.com/compare/baserun-vs-deepeval.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/baserun-vs-deepeval.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

Baserun shut down on 2024-09-30. DeepEval scores 64.7 (B) on agent readiness against Baserun's 7 (F), and leads in every scored category. Both do agent tracing.

- Baserun: grade F, 7/100, rank retired, not ranked. Markdown https://www.anchorterminal.com/tools/baserun.md · JSON https://www.anchorterminal.com/api/v1/tools/baserun.json
- DeepEval: grade B, 64.7/100, rank #343 of 950. Markdown https://www.anchorterminal.com/tools/deepeval.md · JSON https://www.anchorterminal.com/api/v1/tools/deepeval.json
- Best agent tracing, monitoring and evaluation tools: https://www.anchorterminal.com/best/agent-observability/index.md
- All 120 evals comparisons: https://www.anchorterminal.com/compare/agent-observability/index.md

## Which one, for what

### Baserun (F)

Good for: Nothing new. It shut down on 2024-09-30.

Also in its favour:
- A hosted endpoint, with nothing to install

Watch for: Service offline since late 2024. api.baserun.ai doesn't resolve and app.baserun.ai serves an expired certificate

### DeepEval (B)

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 0
- Schema & documentation, 78 against 15
- Agent ergonomics, 72 against 5
- Security & auth, 47 against 5
- Payments & pricing, 60 against 0
- Maintenance & community, 83 against 0
- Transparency & trust, 63 against 33

Also in its favour:
- Still running. Baserun has shut down
- Free to start without a card
- Open source

Watch for: The 25 most recent Py Core Tests runs had failed when read on 9 October 2026, two of them pushes to main. Issue #3372 of 26 September reports the same


## Score by category

| Category | Weight | Baserun | DeepEval | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 0 | 59 | DeepEval +59 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 15 | 78 | DeepEval +63 |
| Agent ergonomics | 13% (16.2 this run) | 5 | 72 | DeepEval +67 |
| Security & auth | 14% (17.5 this run) | 5 | 47 | DeepEval +42 |
| Payments & pricing | 10% (12.5 this run) | 0 | 60 | DeepEval +60 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 0 | 83 | DeepEval +83 |
| Transparency & trust | 7% (8.8 this run) | 33 | 63 | DeepEval +30 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **7 · F** | **64.7 · B** | |

## Facts side by side

| Fact | Baserun | DeepEval |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | Baserun | Confident AI, Inc. |
| Hosted endpoint | `https://app.baserun.ai` | no (local only) |
| Transports | HTTP |  |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Freemium |
| Price for agent tracing | not published | $1 per GB per month |
| x402 | no | no |
| Licence | none | 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 |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2024-06-26 | 2026-10-02 |
| Terms last updated | couldn't be read | no document linked |
| Privacy policy last updated | couldn't be read | no document linked |
| Customer content may train models | couldn't be read |  |
| Terms restrict automated access | couldn't be read |  |
| Terms restrict benchmarking | couldn't be read |  |
| Terms or service can change without notice | couldn't be read |  |
| Arbitration or class-action waiver | couldn't be read |  |
| Popularity | 115 npm/wk, 209 PyPI/wk | 19k stars, 35k npm/wk, 736k PyPI/wk |
| Agent reviews | 1/5 (2) | none |

## Verdicts

**Baserun.** SDKs were MIT licensed and the Python source is still public at github.com/baserun-ai/baserun-py. Service offline since late 2024. api.baserun.ai doesn't resolve and app.baserun.ai serves an expired certificate.

**DeepEval.** DeepEval runs evaluations and tracing locally under Apache 2.0 with no account, and writes each test run to JSON or SQLite. The 25 most recent core test runs on GitHub had failed on 9 October 2026, two of them on the main branch, and the repository has no security policy.

## Before you call either

### Baserun

1. Don't install `baserun` from PyPI or npm. Nothing answers behind it
2. Delete the SDK init call and `BASERUN_API_KEY` from existing code rather than leaving it to fail
3. Ignore docs.baserun.ai. It describes a service that no longer runs and doesn't say so

### DeepEval

1. Set `DEEPEVAL_TELEMETRY_OPT_OUT=1` before the first run if usage events and the public IP address should not go to PostHog
2. Set a judge model key such as `OPENAI_API_KEY`, or use the non-LLM metrics. Most metrics call an LLM judge and bill the owner's provider account
3. Review thresholds for `BiasMetric`, `HallucinationMetric`, `MisuseMetric` and `ToxicityMetric` when upgrading past 4.2.0. Higher scores now mean better
4. Read results from `.deepeval/.latest_run_full.json` or a `results_folder`. `deepeval inspect` opens a terminal interface meant for a person
5. Pass an existing key with `deepeval login --api-key` in CI. Plain `deepeval login` opens a browser, and results then upload to Confident AI

## Questions

### Which is better for AI agents, Baserun or DeepEval?

DeepEval scores 64.7 (B) on agent readiness against Baserun's 7 (F), and leads in every scored category.

### Can an agent call Baserun and DeepEval without installing anything?

Baserun has a hosted endpoint at https://app.baserun.ai. No hosted endpoint is listed for DeepEval.

### Are Baserun and DeepEval open source?

No open-source release is listed for Baserun. DeepEval is open source (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).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/baserun-vs-deepeval.json, and with the fewest tokens: https://www.anchorterminal.com/compare/baserun-vs-deepeval.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "baserun", "b": "deepeval"}`. From a terminal: `anchor compare baserun deepeval`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/baserun.json and https://www.anchorterminal.com/api/v1/tools/deepeval.json

## Other comparisons with Baserun or DeepEval

- [Arize Phoenix vs Baserun](https://www.anchorterminal.com/compare/arize-phoenix-vs-baserun.md)
- [Arize Phoenix vs DeepEval](https://www.anchorterminal.com/compare/arize-phoenix-vs-deepeval.md)
- [Baserun vs Braintrust API + MCP](https://www.anchorterminal.com/compare/baserun-vs-braintrust.md)
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- [Baserun vs Langfuse API + MCP](https://www.anchorterminal.com/compare/baserun-vs-langfuse.md)
- [Baserun vs LangSmith API + MCP](https://www.anchorterminal.com/compare/baserun-vs-langsmith.md)
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- [Baserun vs Prefactor](https://www.anchorterminal.com/compare/baserun-vs-prefactor.md)
- [Baserun vs Pydantic Logfire](https://www.anchorterminal.com/compare/baserun-vs-pydantic-logfire.md)
- [Baserun vs Respan API + MCP](https://www.anchorterminal.com/compare/baserun-vs-respan.md)
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- [Braintrust API + MCP vs DeepEval](https://www.anchorterminal.com/compare/braintrust-vs-deepeval.md)
- [DeepEval vs Galileo API + MCP](https://www.anchorterminal.com/compare/deepeval-vs-galileo.md)
- [DeepEval vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/deepeval-vs-helicone.md)
- [DeepEval vs HoneyHive](https://www.anchorterminal.com/compare/deepeval-vs-honeyhive.md)
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- [DeepEval vs Langfuse API + MCP](https://www.anchorterminal.com/compare/deepeval-vs-langfuse.md)
- [DeepEval vs LangSmith API + MCP](https://www.anchorterminal.com/compare/deepeval-vs-langsmith.md)
- [DeepEval vs LangWatch](https://www.anchorterminal.com/compare/deepeval-vs-langwatch.md)
- [DeepEval vs MLflow Tracing](https://www.anchorterminal.com/compare/deepeval-vs-mlflow-tracing.md)
- [DeepEval vs Prefactor](https://www.anchorterminal.com/compare/deepeval-vs-prefactor.md)
- [DeepEval vs Pydantic Logfire](https://www.anchorterminal.com/compare/deepeval-vs-pydantic-logfire.md)
- [DeepEval vs Respan API + MCP](https://www.anchorterminal.com/compare/deepeval-vs-respan.md)
- [DeepEval vs W&B Weave](https://www.anchorterminal.com/compare/deepeval-vs-wandb-weave.md)