| What it does | One key for 585+ data APIs across reviews, jobs, real estate, e-commerce, travel and finance
| API for sending handwritten letters through AI agents and assistants
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| DE
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| Pricing model | Freemium
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| Key features | - 585+ production data APIs across 14 industries
- Single API key and unified credit pool
- Live playground for testing endpoints
- Continuous API monitoring and reliability
- MCP integration for AI assistants
- Credits never expire
- Failed calls are free (except verified SHEIN NOT_FOUND)
- Private endpoints available on request
- Data covers reviews, jobs, real estate, e-commerce, travel and finance
- Supports payment by card or cryptocurrency
| - 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
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| What makes it different | - One unified credit pool eliminates vendor lock-in and per-API subscriptions
- Continuously monitored endpoints ensure reliability and prevent integration breakage
- AI-ready with MCP integration requiring no glue code
- New APIs shipped weekly with customer requests prioritized
- Median support response time of 2 minutes
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 5 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 2 | 0 |
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| Citation Flow (Majestic) | 33 | 0 |
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| Referring domains (Majestic) | 38 | 0 |
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ReefAPI
Maison Cartouche