context-engine-ai is open source (MIT). The library is free forever — self-host it, embed it in your product, modify the source, no restrictions.
For teams that want managed infrastructure, we offer a hosted cloud API.
| Open Source | Pro | Team | Enterprise | |
|---|---|---|---|---|
| Price | Free | $29/mo | $99/mo | Custom |
| Library (npm) | Yes | Yes | Yes | Yes |
| Self-hosted | Yes | Yes | Yes | Yes |
| Local TF-IDF embeddings | Yes | Yes | Yes | Yes |
| SQLite storage | Yes | Yes | Yes | Yes |
| PostgreSQL + pgvector | Bring your own | Managed | Managed | Dedicated |
| OpenAI embeddings | Bring your own key | Included | Included | Included |
| Cloud API | — | Yes | Yes | Yes |
| Events/month | Unlimited (self-hosted) | 50,000 | 500,000 | Unlimited |
| Context namespaces | 1 | 5 | Unlimited | Unlimited |
| API keys | — | 2 | 10 | Unlimited |
| Dashboard & analytics | — | Yes | Yes | Yes |
| Webhook streaming | — | — | Yes | Yes |
| SSO / SAML | — | — | Yes | Yes |
| Support | GitHub Issues | Email (48h) | Priority (24h) | Dedicated + SLA |
| On-premise deployment | — | — | — | Yes |
No. The npm package has every feature — SQLite, PostgreSQL, local embeddings, OpenAI embeddings, HTTP server, CLI, MCP server. Nothing is held back.
A hosted endpoint (https://api.context-engine.dev/v1) so you don't have to run infrastructure. We manage the database, embeddings, scaling, and backups. You get an API key and a dashboard.
Yes. MIT license. No attribution required (though appreciated).
Each call to ingest() or POST /ingest counts as one event. Deduplicated events (merges) count as one event total, not per merge.
Yes — 2 months free on annual plans. Pro: $290/year. Team: $990/year.
Email oneiro-dev@proton.me with your use case and expected event volume.
Open Source — start now:
npm install context-engine-aiCloud API — sign up for early access:
Email oneiro-dev@proton.me with subject line "Cloud API Access" to join the waitlist. Early adopters get 3 months free on any paid plan.