# Baserun vs LangSmith API + MCP (slim)

> LangSmith API + MCP has a score of 71.3 (BB) against Baserun's 7.3 (F). Both do obs traces. The largest gap is maintenance & community, 85 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/baserun-vs-langsmith.md (~1,600 tokens) · this version ~380 tokens · JSON https://www.anchorterminal.com/compare/baserun-vs-langsmith.json · canonical https://www.anchorterminal.com/compare/baserun-vs-langsmith
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

LangSmith API + MCP has a score of 71.3 (BB) against Baserun's 7.3 (F). Both do obs traces. The largest gap is maintenance & community, 85 points.

- Baserun: F 7.3, rank retired, not ranked · https://www.anchorterminal.com/tools/baserun.min.md
- LangSmith API + MCP: BB 71.3, rank #85 of 452 · https://www.anchorterminal.com/tools/langsmith.min.md
- Pick Baserun for nothing in particular. Pick LangSmith API + MCP for reliability (+81), schema & documentation (+71), agent ergonomics (+71), security & auth (+72), payments & pricing (+40), maintenance & community (+85), transparency & trust (+42).

| Category | Baserun | LangSmith API + MCP |
| --- | --- | --- |
| Reliability (16%) | 0 | 81 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 15 | 86 |
| Agent ergonomics (13%) | 5 | 76 |
| Security & auth (14%) | 5 | 77 |
| Payments & pricing (10%) | 0 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 0 | 85 |
| Transparency & trust (7%) | 36 | 78 |