XSDHub vs eryx
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
XSDHub compared with eryx
| Detail | 
XSDHub | 
eryx |
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| What it does | XML validation and schema tools for developers
| WebAssembly sandbox for running untrusted Python safely
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| Stage | Not given
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| Founded | Not given
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| Based in | NL
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| Pricing model | Freemium
| Open source
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| Pricing | Free: unlimited individual XML checks, local validation, no account required. Pro: US$19/month (US$190/year), batch 25 files, 10 cloud projects, 10 schemas, 300 validations + 250 invoices/day. Team: US$49/month (US$490/year), batch 100 files, 50 shared projects, 100 schemas, 5 seats, 1,000 validatio
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| Key features | - Free local XML syntax and formatting checks
- XSD 1.0 validation with local imports and includes
- Optional XSD 1.1 and ISO Schematron XPath 1.0 server validation
- Cloud schema projects with version control
- Batch validation up to 25 files (Pro) or 100 files (Team)
- API access with daily quotas
- Public HTTPS schema import and structural comparison
- EN 16931 and XRechnung invoice validation
- Multi-format invoice validation (Factur-X, KSeF, RO e-Factura, HR-CIUS)
| - Full CPython 3.14 with standard library
- Async callbacks from sandboxed code
- No filesystem or network unless allowed
- Fast startup in 1–5 milliseconds
- Embed from Python, JavaScript or Rust
- MCP server support
- gRPC server deployment
- Hosted execution over HTTP and WebSocket
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| What makes it different | - Browser-based validation runs locally without uploading documents by default
- Explicit server processing consent required for any upload
- Comprehensive e-invoice validation across six European formats
- Built with AI assistance and documented with primary references
| - Full CPython 3.14 running in WebAssembly
- Async callbacks between sandbox and host
- Extremely fast sandbox startup
- Works as MCP server for AI agents
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 4 | 6 |
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| Referring domains (Majestic) | 1 | 2 |
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4 details filled in for both companies.
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