Phospho
Open-source text analytics on LLM app messages, clustering and scoring conversations to surface what users actually do.
| Category | Observability & Tracing |
| Open source | Yes |
| Self-hostable | Yes |
| Pricing model | freemium |
| Pricing notes | OSS core; hosted tier with free plan |
| Framework integrations | openai-sdk, langchain, mistral |
| Funding / ownership | Y Combinator alum |
Pricing/feature source: https://phospho.ai