Browse / Alternatives / Attio
Open source Attio alternatives for AI agents
2 alternatives to Attio. 1 has an interface an agent can drive. 2 are open source.
| Listing | License | Agent interface | Reach | Effort | Last activity |
|---|---|---|---|---|---|
| Twenty | AGPL-3.0 core with marked enterprise files | MCP server, from the builder | 8 of 10 jobs | Config only | Sep 3, 2026 |
| Comp AI CRM | MIT | Screen only | 2 of 7 jobs | Config only | Sep 2, 2026 |
Twenty
Open-source CRM with an in-product MCP server: per-object CRUD, workflows, metadata, views and webhooks over OAuth.
Self-hosted · Cloud · Enterprise
- I want a CRM our agent can query, update and reshape (new objects, fields, workflows) without a wrapper
- I want to version our CRM's data model as code and ship it to a workspace
- Connect email and calendar accounts
- Publish an app to the workspace
- Env var names above come from the self-host docs and the .mcp.json dev config (PG_DATABASE_URL); confirm the current list at docs.twenty.com
- The root .mcp.json is developer tooling (postgres, playwright, context7), not the product MCP
- Metadata and workflow tools require loading a skill first or the agent misbuilds
- AGPL core; enterprise files are marked and not free
Comp AI CRM
Self-hosted CRM where a scheduled research agent keeps the records, tuned by four markdown skill files.
Free
- I want a CRM that fills itself in from our inboxes instead of nagging reps to log calls
- I want to change what the research agent is allowed to look at and write, without rewriting the app
- Research and enrich a contact or company
- Read pipeline records
- Write facts and activities to a record
- Talk to the agent about a contact
- Schedule a re-check on a person
- No API tokens: every request needs an identity-provider session, so an outside agent has no documented way in
- Three separate deployments must agree on DATABASE_URL and BETTER_AUTH_SECRET or you get a redirect loop
- Microsoft client secrets expire (6 months default) and mail sync fails silently when they do
- Default branch is release, not main
Questions
Is there an open source alternative to Attio?
Yes. Both listings here are open source: Twenty (AGPL-3.0 core with marked enterprise files), Comp AI CRM (MIT).
Which Attio alternatives have an MCP server?
Twenty has an MCP server from its builder.
Which Attio alternative can an agent do the most with?
Twenty: 8 of 10 recorded jobs reachable. Jobs differ by listing, so read each list before you choose.
Listings come from reading each repo and its docs. Reach counts the jobs an agent can do through the stated interface, and each listing page shows the evidence. Order follows fit. For agents: Markdown · JSON