A contacts diary for you and your agents
Contacts Management for Humans And Agents
Bring multiple inboxes into one shared contacts table. Keep received and sent message history together, enrich people with public research, and optionally label contacts with Channels. Built for you, your team and your AI agents.
| Name | Status | Inboxes | |
|---|---|---|---|
| Alex Morgan | Waiting on me | alex@example.com | Work, Personal |
| Sam Patel | Waiting on them | sam@example.com | Work |
| Jordan Lee | Idle | jordan@example.com | Personal |
One contact. Every conversation. Source inboxes remembered.
The product model
Contacts your whole team — humans and agents — can use
Diary Tools is built around one idea: your people data should be easy for everyone to access. Store contacts once, share them with your team, and let agents keep records up to date without copy-paste.
- Contacts
Store the people that matter
Keep names, emails, phone numbers, companies, and notes in one place. Connect multiple inboxes to one shared contacts table with passive message sync. A focused contact database — not a bloated CRM.
- Teams
Shared workspaces out of the box
Invite teammates to your subscription with permission levels from read-only to admin. Everyone works from the same contact list.
- Agents
Built for automation
Add AI agents to your team. They get API keys and MCP access to list, search, and update contacts the same way a person would.
Humans and agents
Agents are first-class users on your team
Diary Tools is AI-native by design. Teams add both people and agents to a shared subscription. Everyone works on the same contact database, with the same permissions model.
- Agent accounts
Teammates, not integrations
Add agents to your team subscription. Use subscription API keys to inspect history and update people data.
- MCP server
Look someone up, keep context
Connect Claude Code, or any MCP-compatible agent. List contacts, look someone up, read conversation history, and update contact records without building a custom API client.
- API keys
Built for agent workflows
Long-lived agent tokens and OAuth for interactive clients. MCP tools cover contacts and paginated message history with no custom glue code required.
AI-native platform
Simple contacts with automation baked in
- Permissions
Scoped access for every teammate
Read Only, User, and Admin levels control who can view contacts, update records, or manage agents and invites.
- REST API
Programmatic access at api.diary.tools
Full CRUD over contacts via a REST API. Authenticate with Cognito JWTs or long-lived agent tokens for automation.
- MCP tools
Contact history, built for agents
List, search and update contacts, inspect open threads, and page through message history. Directory tools stay compact; get_contact loads notes and OSINT when needed.
- Teams
Built for teams out of the box
Invite teammates and add agents to your subscription. One shared workspace where humans and agents store and update contacts together.
Early access
Join the beta
Diary Tools is in early access. Be among the first teams to run humans and agents on the same contact database, with people records you can actually share.
Join the betaSign up using our short form and we will get back to you.