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SPECIFICTION
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Contact Book

monicacrm.com

From €8.33/mo Free plan WebAPI
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Spec score 9.1 #4 of 26 in Personal CRM Software

What it is

Contact Book is a personal CRM for capturing contact details, logging interactions and keeping track of gifts, life events and follow-ups. Profiles can hold emails, phones, companies, addresses, birthdays, social links, food preferences, allergies and how you met someone. A shared screen brings together profiles, a relationship graph, a timeline, life events, gifts, follow-ups and a journal. Users can import and export information, export everything or delete an account through self-service settings. The service is available on the web and offers HTTP API, CLI and MCP access to the same data and access rules. The operator says its application servers and database are hosted in Germany. Public endpoints use TLS 1.3, database disks are encrypted at rest, and backups are encrypted before leaving the primary host. Daily database snapshots are retained for 30 days, stored in another physical location, and restore tests are performed quarterly. The operator says it does not sell user data or share it with advertisers. Contact Book has a free plan; Standard costs €10 per month or €100 per year. Email and calendar sync are not offered.

Spec sheet

What it does
Contact Book is a personal CRM for capturing contacts, recording interactions, tracking gifts and life events, and managing follow-ups.Read 15 Oct 2026 · monicacrm.com
Purpose
Contact Book is a personal CRM for capturing contacts, logging interactions, tracking gifts and life events, and managing follow-ups.Read 30 Sep 2026 · monicacrm.com
Audience
The product is built for solo users keeping a personal CRM, including people managing friends, family, networks, parents, freelancers, and volunteers.Read 30 Sep 2026 · monicacrm.com
API
A REST API is available at the /xapi2/data endpoints with bearer personal-access-token authentication.Read 15 Oct 2026 · monicacrm.com
Integrations
The integration surface includes GraphQL, WebSockets, outgoing signed webhooks, and client libraries for multiple programming languages.Read 30 Sep 2026 · monicacrm.com
Privacy
The operator says it does not sell user data, share it with advertisers, or run third-party analytics or session recording on logged-in pages.Read 30 Sep 2026 · monicacrm.com
Support
The founders say they answer support emails themselves, and the imprint says monitored contact addresses are usually answered within one working day.Read 30 Sep 2026 · monicacrm.com
Headquarters
GermanyRead 28 Sep 2026 · monicacrm.com
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.Read 15 Oct 2026 · monicacrm.com
Authentication providers
Users may be able to sign in with Google, LinkedIn, GitHub, or Microsoft accounts instead of a password.Read 30 Sep 2026 · monicacrm.com
Authentication security
Passwords use Argon2id hashing, magic links are single-use and expire after 30 minutes, and sessions can be revoked per device.Read 15 Oct 2026 · monicacrm.com
Backups
Daily database snapshots are retained for 30 days in a separate physical location and restores are tested quarterly.Read 15 Oct 2026 · monicacrm.com
CLI
A single-file Python command-line client supports CSV, NDJSON, table output, retries, dry runs and idempotency keys.Read 15 Oct 2026 · monicacrm.com
Client libraries
Single-file libraries are listed for Python, TypeScript, JavaScript, Go, Java, Rust, C#, C++, PHP, Ruby, Kotlin, Swift, Dart, Elixir and Clojure.Read 15 Oct 2026 · monicacrm.com
Contact profiles
Profiles can include emails, phones, companies, addresses, birthdays, social links, food preferences, allergies and how two people met.Read 15 Oct 2026 · monicacrm.com
Data export and deletion
Users can export all account data and delete their account from settings without contacting support.Read 15 Oct 2026 · monicacrm.com
Data ownership
Users can export everything or delete their account through self-service account settings.Read 30 Sep 2026 · monicacrm.com
Documentation depth
The documentation covers every exposed endpoint, with curl, JavaScript, TypeScript and WebSocket examples for each model.Read 15 Oct 2026 · monicacrm.com
Encryption
Public endpoints use TLS 1.3, database disks are encrypted at rest, and backups are encrypted before leaving the primary host.Read 15 Oct 2026 · monicacrm.com
Founder background
Finn Glas describes himself as a German technical founder building his second company.Read 15 Oct 2026 · finnmglas.com
Founder education
Finn Glas says he studied physics at Karlsruhe Institute of Technology.Read 15 Oct 2026 · finnmglas.com
Founder prior company
Finn Glas lists NextStepHR as a bootstrapped software startup he exited after serving a PwC customer.Read 15 Oct 2026 · finnmglas.com
Founder technical profile
His GitHub profile lists senior full-stack development, Rust, Python, TypeScript and Linux work.Read 15 Oct 2026 · github.com
Founders
Julia Yukovich and Finn Glas identify themselves as Contact Book co-founders.Read 15 Oct 2026 · monicacrm.com
Funding disclosure
Contact Book's About page says Julia Yukovich previously raised more than €1.7 million for AICU GmbH; it does not state Contact Book funding.Read 15 Oct 2026 · monicacrm.com
Gifts
Gift ideas can be recorded and gifts can be marked as given or received with occasion and date.Read 15 Oct 2026 · monicacrm.com
GraphQL
An optional GraphQL endpoint is provided with depth and complexity limits.Read 15 Oct 2026 · monicacrm.com
Hosting
Application servers and the database are hosted in Germany on servers managed by the operator.Read 30 Sep 2026 · monicacrm.com
Hosting location
Application servers and databases are operated on servers in Germany under German law.Read 15 Oct 2026 · monicacrm.com
Interaction timeline
Each contact has notes and a structured history of meetings, calls, emails and events.Read 15 Oct 2026 · monicacrm.com
Journal
A standalone journal supports mood and topic tags for diary entries.Read 15 Oct 2026 · monicacrm.com
Licence
The terms reserve the software and design as the operator's intellectual property and prohibit copying, resale or redistribution, indicating a proprietary service rather than open-source software.Read 15 Oct 2026 · monicacrm.com
Life events
The product tracks birthdays, anniversaries, job changes, moves and milestones, including recurring yearly events.Read 15 Oct 2026 · monicacrm.com
Limit: hosted service
The product is operated as a hosted service; users do not run or maintain their own Contact Book server.Read 15 Oct 2026 · monicacrm.com
Limit: no email or calendar sync
The maker's comparison material states that Contact Book does not provide email or calendar synchronization.Read 15 Oct 2026 · monicacrm.com
Live updates
Edits are broadcast over WebSocket so changes appear across tabs in near real time.Read 15 Oct 2026 · monicacrm.com
Maker headquarters
The operator address is Lange Straße 14, 72461 Tailfingen, Germany.Read 15 Oct 2026 · monicacrm.com
Maker ownership
The legal operator is Finn Glas as a German sole proprietor.Read 15 Oct 2026 · monicacrm.com
MCP
Contact Book provides an MCP server compatible with clients such as Claude Desktop, Cursor and Cline.Read 15 Oct 2026 · monicacrm.com
Privacy practices
The operator says it does not sell data, share it with advertisers, or run third-party trackers on logged-in pages.Read 15 Oct 2026 · monicacrm.com
Refund policy
A paid-period charge can be refunded through account settings within the first 30 days.Read 15 Oct 2026 · monicacrm.com
Related company
AICU GmbH's site identifies the company as an EU-hosted, GDPR-compliant AI platform and lists Julia as its CEO in linked company materials.Read 15 Oct 2026 · aicuflow.com
Relationship data
The product includes profiles, a relationship graph, a timeline, life events, gifts, follow-ups, and a journal on the same screen.Read 30 Sep 2026 · monicacrm.com
Relationship graph
People can be linked as partners, parents, siblings, colleagues or mentors, with mirrored relationship records.Read 15 Oct 2026 · monicacrm.com
Reminders
Follow-up tasks are attached to contacts with a due date, message and completion state.Read 15 Oct 2026 · monicacrm.com
Third-party sign-in
Google, LinkedIn, GitHub and Microsoft sign-in options may be used, with only authorized identity details stored.Read 15 Oct 2026 · monicacrm.com
Webhooks
Outgoing webhooks use HMAC-signed JSON, exponential backoff, replay-safe timestamps and automatic disabling after sustained failures.Read 15 Oct 2026 · monicacrm.com
WebSocket API
The API supports subscriptions and CRUD operations over a WebSocket channel for real-time integrations.Read 15 Oct 2026 · monicacrm.com

Plans and prices

Free Free Read 30 Sep 2026 · monicacrm.com
Free Free Free plan; limits shown in product Read 15 Oct 2026 · monicacrm.com
Standard monthly €10 a month monthly Read 15 Oct 2026 · monicacrm.com
Standard annual €100 a year annually Read 15 Oct 2026 · monicacrm.com

Every Contact Book plan and price →

Strong points and limits

Strong points

  • Profiles include detailed personal and relationship information
  • Relationship graph, timeline and journal on one screen
  • Follow-up reminders and interaction history
  • Export everything or delete an account in settings
  • Free plan; Standard is €10 per month or €100 per year

Limits

  • Email and calendar sync are not offered
  • Web is the listed mobile app option

Who it suits

It suits solo users who want a personal CRM for friends, family, professional networks or people they support as parents, freelancers or volunteers. It may also suit users who want API or command-line access alongside web use.

Verdict

Contact Book combines contact profiles with relationship history and follow-up tracking. Its web and API access suit personal CRM use, but it does not sync email or calendars.

Where Specifiction places it

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