| What it does | API for sending handwritten letters through AI agents and assistants
| WhatsApp API gateway for your own WhatsApp number with REST API, webhooks and bulk campaigns
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| Stage | Not given
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| Founded | Not given
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| Based in | DE
| RW
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| Pricing model | Not given
| Freemium
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| Pricing | Not given
| Plans start at $4.50 per month for one WhatsApp device, up to $79.00 per month. Free 3-day trial with no card required. Plans include unlimited messages, webhooks and campaigns. Yearly billing saves 20%.
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| Key features | - Agent policy configuration with send limits and approval settings
- Relationship management with contact details restricted from API
- Moment tracking for birthdays and anniversaries
- Letter quote and pricing with customizable upgrades
- Real-time send tracking with multiple status states
- Address request generation with privacy protection
- Webhook event system with signature verification
- OAuth support for custom connectors like Claude
| - Send text, images, documents, video, audio, locations and contact cards via REST API
- Real-time webhooks for incoming messages, delivery and read receipts
- Bulk campaigns with personalization and {{name}}-style variables
- Automatic keyword replies and 24/7 chatbot responses
- Account protection with human-like pacing and warm-up for new numbers
- Create and manage groups, add or remove members, get invite links
- Connect 1 to 25 WhatsApp numbers with separate keys and webhooks
- Full message and webhook logging with automatic STOP opt-outs
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| What makes it different | - Same API primitives used in the app itself
- Hands-on compliance with frequency limits and approval workflows
- Model Context Protocol integration for AI assistants
- Hosted MCP server with no installation required
| - No Meta approval or business verification required — link your existing number via QR code like WhatsApp Web
- Unlimited messages included in every plan, pay per device not per message
- Compatible with WaSender API so existing integrations keep working
- Free 3-day trial with no card required
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| Community votes | 0 | 2 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 4 ▲ +3 (up) since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 0 | 17 |
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| Referring domains (Majestic) | 0 | 5 |
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Maison Cartouche
WAservix