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Contact Book
Germany
What it is
Contact Book is a personal CRM for recording contacts, interactions, gifts, life events, and follow-ups. Profiles can store emails, phones, companies, addresses, birthdays, social links, food preferences, allergies, and how you met someone. A single view combines profiles, a relationship graph, an interaction timeline, life events, gifts, follow-ups, and a journal. Follow-up reminders are included, while email and calendar sync are not. The service runs on the web and provides API, CLI, and MCP access to the same data and access rules. Users can import and export information, export everything, or delete an account through self-service settings. The operator says servers and databases are hosted in Germany, with TLS 1.3, encrypted storage, encrypted backups, daily snapshots, and quarterly restore tests. Contact Book has a free plan; Standard costs €10 per month or €100 per year.
For and against
For
- Free plan available
- Rich personal contact profiles
- Relationship graph and interaction timeline
- Follow-up reminders included
- Import and export supported
Against
- No email or calendar sync
- Paid Standard plan starts at €10/mo
- Web platform rather than mobile apps
- Built for solo personal CRM use
The verdict
Contact Book focuses on detailed relationship records and follow-up management, with web and programmatic access. Its free plan and export controls are useful, while missing email/calendar sync may matter to some users.
Who it suits
It suits solo users managing personal relationships, including friends, family, networks, parents, freelancers, and volunteers. People wanting reminders, interaction history, and data export can use it through the web or API.
Plans and prices
Free
Free plan; limits shown in product
Read 15 Oct 2026 · monicacrm.com
Standard monthly
Read 15 Oct 2026 · monicacrm.com
Standard annual
Read 15 Oct 2026 · monicacrm.com
On the record
- API
- A REST API is available at the /xapi2/data endpoints with bearer personal-access-token authentication.monicacrm.com · read 15 Oct 2026
- API data models
- Eleven models are exposed end to end, including contacts, activities, conversations, custom fields, gifts, journal entries, life events, notes, pets, relationships and reminders.monicacrm.com · read 15 Oct 2026
- Audience
- The product is built for solo users keeping a personal CRM, including people managing friends, family, networks, parents, freelancers, and volunteers.monicacrm.com · read 30 Sep 2026
- Authentication providers
- Users may be able to sign in with Google, LinkedIn, GitHub, or Microsoft accounts instead of a password.monicacrm.com · read 30 Sep 2026
- Authentication security
- Passwords use Argon2id hashing, magic links are single-use and expire after 30 minutes, and sessions can be revoked per device.monicacrm.com · read 15 Oct 2026
- Backups
- Daily database snapshots are retained for 30 days in a separate physical location and restores are tested quarterly.monicacrm.com · read 15 Oct 2026
- CLI
- A single-file Python command-line client supports CSV, NDJSON, table output, retries, dry runs and idempotency keys.monicacrm.com · read 15 Oct 2026
- Client libraries
- Single-file libraries are listed for Python, TypeScript, JavaScript, Go, Java, Rust, C#, C++, PHP, Ruby, Kotlin, Swift, Dart, Elixir and Clojure.monicacrm.com · read 15 Oct 2026
- Contact profiles
- Profiles can include emails, phones, companies, addresses, birthdays, social links, food preferences, allergies and how two people met.monicacrm.com · read 15 Oct 2026
- Data export and deletion
- Users can export all account data and delete their account from settings without contacting support.monicacrm.com · read 15 Oct 2026
- Data ownership
- Users can export everything or delete their account through self-service account settings.monicacrm.com · read 30 Sep 2026
- Documentation depth
- The documentation covers every exposed endpoint, with curl, JavaScript, TypeScript and WebSocket examples for each model.monicacrm.com · read 15 Oct 2026
- Encryption
- Public endpoints use TLS 1.3, database disks are encrypted at rest, and backups are encrypted before leaving the primary host.monicacrm.com · read 15 Oct 2026
- Founder background
- Finn Glas describes himself as a German technical founder building his second company.finnmglas.com · read 15 Oct 2026
- Founder education
- Finn Glas says he studied physics at Karlsruhe Institute of Technology.finnmglas.com · read 15 Oct 2026
- Founder prior company
- Finn Glas lists NextStepHR as a bootstrapped software startup he exited after serving a PwC customer.finnmglas.com · read 15 Oct 2026
- Founders
- Julia Yukovich and Finn Glas identify themselves as Contact Book co-founders.monicacrm.com · read 15 Oct 2026
- Founder technical profile
- His GitHub profile lists senior full-stack development, Rust, Python, TypeScript and Linux work.github.com · read 15 Oct 2026
