| What it does | Turn your OpenAPI specification into a hosted MCP server
| Bulk phone number and email verification across 50+ platforms via API or no-code CSV upload
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| Stage | Startup
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Paid
| Paid
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| Pricing | Usage-based pricing with monthly capability allowances. Starter plan includes 10K monthly capabilities; additional capability packs can be purchased. Prices available in billing catalog.
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| Key features | - OpenAPI import and conversion to MCP tools
- Interactive testing playground for MCP tools
- Production observability with usage, latency, status, and error tracking
- Versioning with zero-downtime updates
- Custom domains and isolated MCP servers
- Authentication pass-through to existing backends
- White-label MCP server hosting
- No payload storage by default
| - Real-time verification against 50+ platforms
- No-code CSV/TXT upload interface
- REST API for automation and integration
- Support for 200+ countries
- Platform-specific detectors for messaging, social, crypto and carriers
- Activity detection (days active, last seen, profile data)
- Free single number checker tool
- Pay-as-you-go with no monthly fees
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| What makes it different | - No API modifications required; your backend remains the source of truth
- Deploy from API to live MCP server in minutes without building protocol infrastructure
- Request and response payloads are never stored; only operational metadata retained for monitoring
- Managed hosting, versioning, and custom domains included in plans
- Works with any MCP-compatible client including Claude, ChatGPT, Cursor, and VS Code
| - Supports 50+ platforms with a single API integration
- No platform login or QR code required for verification
- Both no-code and developer-ready options
- Real-time checks against live platform servers
- No data storage or marketing use of contact lists
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 3 ● no change since last check | 37 ● no change since last check |
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| Trust Flow (Majestic) | 9 | 6 |
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| Citation Flow (Majestic) | 31 | 44 |
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| Referring domains (Majestic) | 45 | 42 |
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0mcp
CheckNumber.AI