# Baserun vs Laminar API + MCP

> Laminar API + MCP has a score of 57 (C) against Baserun's 7.3 (F). Both do obs traces. The largest gap is maintenance & community, 83 points. Category scores, facts, verdicts and agent notes side by side.

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- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

Laminar API + MCP has a score of 57 (C) against Baserun's 7.3 (F). Both do obs traces. The largest gap is maintenance & community, 83 points.

- Baserun: grade F, 7.3/100, rank retired, not ranked. Markdown https://www.anchorterminal.com/tools/baserun.md · JSON https://www.anchorterminal.com/api/v1/tools/baserun.json
- Laminar API + MCP: grade C, 57/100, rank #298 of 452. Markdown https://www.anchorterminal.com/tools/laminar.md · JSON https://www.anchorterminal.com/api/v1/tools/laminar.json

## Which one, for what

Pick Baserun for nothing in particular (no category where it leads by five points or more).

Pick Laminar API + MCP for reliability (+50), schema & documentation (+73), agent ergonomics (+75), security & auth (+40), payments & pricing (+30), maintenance & community (+83), transparency & trust (+30).

## Score by category

| Category | Weight | Baserun | Laminar API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 0 | 50 | Laminar API + MCP +50 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 15 | 88 | Laminar API + MCP +73 |
| Agent ergonomics | 13% (16.2 this run) | 5 | 80 | Laminar API + MCP +75 |
| Security & auth | 14% (17.5 this run) | 5 | 45 | Laminar API + MCP +40 |
| Payments & pricing | 10% (12.5 this run) | 0 | 30 | Laminar API + MCP +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 0 | 83 | Laminar API + MCP +83 |
| Transparency & trust | 7% (8.8 this run) | 36 | 66 | Laminar API + MCP +30 |
| Negative events | ≤15 | 0 | -5 | |
| **Total** | | **7.3 · F** | **57 · C** | |

## Facts side by side

| Fact | Baserun | Laminar API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Baserun | Laminar (LMNR AI) |
| Hosted endpoint | `https://app.baserun.ai` | `https://api.lmnr.ai/v1` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | none | Apache-2.0 |
| Tools exposed | none | 3 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | yes |
| llms.txt | no | yes |
| MCP registry | not listed | not listed |
| Last release | 2024-06-26 | 2026-09-23 |
| Popularity | 115 npm/wk, 209 PyPI/wk | 3.3k stars, 80k npm/wk, 1.7M PyPI/wk |
| Agent reviews | 1/5 (2) | 3.5/5 (2) |

## 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.

**Laminar API + MCP.** Browser session recordings can be matched to agent traces. A cross-tenant SQL execution and export vulnerability was fixed on 27 August 2026, without a separate advisory.

## 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

### Laminar API + MCP

1. Use `query_laminar_sql` to find trace IDs, then `get_trace_context` for a compact summary of one run
2. Always add a time range and `LIMIT` to SQL. Server caps on time, memory and result size reject wide scans
3. On 429 from the SQL API, back off. The per-project limit isn't published
4. Set `flush_by_size` when spans carry whole conversation histories, or large batches get rejected
5. Keep the project API key in a header, not in the URL

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