# OpenDuet vs Zapia (slim)

> OpenDuet scores 49.5 (D) to Zapia's 17.3 (F) for assistants reached by message. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/openduet-vs-zapia.md (~3,850 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/openduet-vs-zapia.json · canonical https://www.anchorterminal.com/compare/openduet-vs-zapia
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-30
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

OpenDuet scores 49.5 (D) on agent readiness against Zapia's 17.3 (F), and leads in 5 of 7 scored categories. Zapia leads on maintenance & community. Both do assistants reached by message.

- OpenDuet: D 49.5, rank #962 of 1239 · https://www.anchorterminal.com/tools/openduet.min.md
- Zapia: F 17.3, rank #1196 of 1239 · https://www.anchorterminal.com/tools/zapia.min.md
- OpenDuet, good for A starting point for a developer or team who wants a proactive mail-and-calendar assistant they host and change, with approvals and audit, and who accepts a CopilotKit Intelligence account. Ahead on Reliability, 42 against 15; Schema & documentation, 58 against 0; Agent ergonomics, 52 against 0; Security & auth, 59 against 3; Transparency & trust, 68 against 58. Also Free to start without a card; Open source.
- Zapia, good for Spanish- and Portuguese-speaking users who want an assistant over their mail, calendar, Drive and WhatsApp in an app. Ahead on Maintenance & community, 56 against 37.

| Category | OpenDuet | Zapia |
| --- | --- | --- |
| Reliability (16%) | 42 | 15 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 58 | 0 |
| Agent ergonomics (13%) | 52 | 0 |
| Security & auth (14%) | 59 | 3 |
| Payments & pricing (10%) | 30 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 37 | 56 |
| Transparency & trust (7%) | 68 | 58 |

| Fact (where they differ) | OpenDuet | Zapia |
| --- | --- | --- |
| Kind | Agent harness | Platform |
| Vendor | CopilotKit (Tawkit, Inc.) | Brainlogic AI S.A.S. |
| Licence | MIT. Threads and memory need a CopilotKit Intelligence project, a separate service under CopilotKit's Self-Service Agreement | Closed service under Zapia's terms and conditions (Brainlogic AI SAS). No date was found on the terms. |
| Last release | none | 2026-10-12 |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | 2026-08-27 | 2026-10-05 |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | not found in the text |
| Popularity | 1.6k stars | none |
| Agent reviews | none | 2/5 (4) |