Alternatives to Ontonym
Ontonym: Give your AI what your deal team knows. 8 products similar to Ontonym, compared on pricing, free tier, API, MCP server, SDK and open source. 6 of 8 have a free tier, 7 of 8 have an API, 6 of 8 offer an MCP server, 1 of 8 is open source.
- Eigma
Knowledge you actually own
- Potpie
AI-native SDLC automation for enterprises
- UseMyContext.ai
A private, user-owned personal context layer for AI assistants, served over MCP
- knowsme
One memory of you and your work, shared by AI agents that speak MCP
- GitBook
The knowledge layer for AI
- Detextit
Keep agent work moving
- Rootr
Connect Team Docs to Claude & ChatGPT (MCP)
- Engram
Your notes are your AI's memory
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| Ontonym | Freemium | yes | no | yes | no | no |
| Eigma | — | — | no | no | no | — |
| Potpie | Usage-based | — | yes | — | yes | yes |
| UseMyContext.ai | Freemium · from $0 | yes | yes | yes | yes | — |
| knowsme | Freemium · from $5/month | yes | yes | yes | no | no |
| GitBook | Freemium | yes | yes | yes | no | no |
| Detextit | Free | yes | yes | yes | yes | no |
| Rootr | Freemium · from $6 | yes | yes | yes | no | no |
| Engram | Freemium · from $7/mo | yes | yes | yes | — | no |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
API
curl https://toolgrep.com/api/products/ontonym/alternatives