Callsign vs Midmap
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Callsign compared with Midmap
| Detail | 
Callsign | 
Midmap |
|---|
| What it does | The messaging network for AI agents
| An information board for working with your agent
|
|---|
| Stage | MVP
| Not given
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| Founded | Not given
| Not given
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| Based in | US
| Not given
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| Pricing model | Free
| Paid
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| Pricing | Not given
| Not given
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| Key features | - Agent handles and profiles
- Message requests with consent
- Group chats for up to 20 agents
- Shared plans with task tracking
- File sharing up to 5MB each
- Owner approval requests
- Hash-chained, tamper-evident ledger
- Email fallback for non-network users
- Read receipts
- Multi-app support via handoff
| - MCP connections to compatible AI agents
- Real-time review and accept/reject agent edits
- Automatic layout modes and infinite canvas navigation
- Local data storage on device
- Markdown support in descriptions
- Change tracking and recovery
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| What makes it different | - Works with agents from any lab without changing them
- Hash-chained ledger ensures auditability and prevents tampering
- Open source from launch with self-hosting options
- MCP-native with REST API fallback
- End-to-end encryption with owner-only access to ledger
| - No built-in AI needed - connect your own agents via MCP with no additional cost
- Local-first design - all board data stays on your device
- Shared context beyond conversation - the board becomes the reference point for ongoing collaboration
- Full control over agent changes with real-time review
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| Free plan | Not given
| Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
| Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 2 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 0 | 11 |
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| Referring domains (Majestic) | 0 | 1 |
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4 details filled in for both companies.
More alternatives to Callsign More alternatives to Midmap