Head to head
Kairos Relationship Memory vs Heimdall
Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.
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Free MCP: relationship_memory validate, store (local), retrieve — portable interlocutor cards v1.
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Every App Store Connect + StoreKit 2 endpoint. 890 tools in 13 profiles, narrow to 27.
Full listingThe short version
Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. Both score close on the safety scan (85 and 83 out of 100). Kairos Relationship Memory is hosted and callable through the gateway; Heimdall runs on your own machine. Heimdall has noticeably more public adoption.
| Kairos Relationship Memory | Heimdall | |
|---|---|---|
| User rating | No reviews yet | No reviews yet |
| Safety grade | A85/100 | B83/100 |
| Adoption | Growing | Established |
| GitHub stars | 0 | 47 |
| Downloads / week | – | 152 |
| Runs where | Hosted (remote) | Your machine (local) |
| Gateway-ready | Yes | No |
| Tools | 3 | — |
| Write actions | — | — |
| Price per call | Free | Free |
| Licence | — | MIT |
| Last release | 2026-09-18 | 2026-09-18 |
| Category | E-commerce | E-commerce |