# Langfuse API + MCP vs Respan API + MCP (slim)

> Langfuse API + MCP has a score of 72.8 (BB) against Respan API + MCP's 65.9 (B). Both do obs traces. The largest gap is transparency & trust, 26 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/langfuse-vs-respan.md (~1,700 tokens) · this version ~330 tokens · JSON https://www.anchorterminal.com/compare/langfuse-vs-respan.json · canonical https://www.anchorterminal.com/compare/langfuse-vs-respan
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

Langfuse API + MCP has a score of 72.8 (BB) against Respan API + MCP's 65.9 (B). Both do obs traces. The largest gap is transparency & trust, 26 points.

- Langfuse API + MCP: BB 72.8, rank #66 of 452 · https://www.anchorterminal.com/tools/langfuse.min.md
- Respan API + MCP: B 65.9, rank #165 of 452 · https://www.anchorterminal.com/tools/respan.min.md
- Pick Langfuse API + MCP for reliability (+7), agent ergonomics (+8), payments & pricing (+10), transparency & trust (+26). Pick Respan API + MCP for nothing in particular.

| Category | Langfuse API + MCP | Respan API + MCP |
| --- | --- | --- |
| Reliability (16%) | 80 | 73 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 93 | 89 |
| Agent ergonomics (13%) | 74 | 66 |
| Security & auth (14%) | 65 | 66 |
| Payments & pricing (10%) | 40 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 88 | 85 |
| Transparency & trust (7%) | 87 | 61 |