Langfuse vs Raindrop
Which Developer Tools AI tool is better in 2026?
Langfuse
Open source LLM engineering platform for debugging, analyzing, and iterating on LLM applications
Raindrop
Sentry for AI agents — monitoring that catches silent failures in production
Side-by-side
Raindrop is the more established option (raised $15M), but Langfuse is cheaper to start.
| Metric | Langfuse | Raindrop |
|---|---|---|
| Taglinei | Open source LLM engineering platform for debugging, analyzing, and iterating on LLM applications | Sentry for AI agents — monitoring that catches silent failures in production |
| Foundedi | 2023🏆 | 2024 |
| HQi | DE | San Francisco, US |
| Employeesi | 11-50🏆 | 1-10 |
| Neuron scorei | 34 | 64🏆 |
| Total fundingi | $8M | $15M🏆 |
| Latest roundi | Series A · Jul 2024 | Seed · Dec 2025 |
| Valuationi | — | — |
| Cheapest paid plani | From $29/mo🏆 | Pricing not disclosed |
| Free plani | ✓ | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Free · From $29/mo | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Langfuse and Raindrop.
| Capability | Langfuse | Raindrop |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 3 (Python, JavaScript, TypeScript) | — |
| Free plan | ✓ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Langfuse
- Lower starting price ($29/mo)
- More mature (2023)
🔵 Strengths of Raindrop
- Has raised more capital ($15M vs $8M)
- Higher Neuron score (64 vs 34)
- Offers a free trial
- Newer company (2024)
Which should you choose?
Choose Langfuse if price matters most — it starts at Free · From $29/mo, which is friendlier for teams watching burn. Both AI Developer Tools tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Raindrop if you want the most established option — it has raised $15M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Langfuse vs Raindrop — which is better?
It depends on your priority. Langfuse is the leaner option; Raindrop has broader feature depth. See the side-by-side table above.
Is Langfuse cheaper than Raindrop?
Yes — Langfuse's cheapest paid plan is Free · From $29/mo, while Raindrop's is Free.
Do Langfuse and Raindrop offer free plans?
Langfuse: Yes, has a free plan. Raindrop: Yes, has a free plan.
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