Postbye vs Klaracase
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Postbye compared with Klaracase
| Detail | 
Postbye | 
Klaracase |
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| What it does | Cancel subscriptions by certified mail with tracking and proof of delivery
| Legal research platform with API, MCP-Server and SDKs for German case law
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | US
| DE
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| Pricing model | Paid
| Freemium
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| Pricing | Not given
| Free: 0€/month (30 Credits, one-time, 30 days); Starter: 29€/month including 19% VAT (300 Credits/month); Professional: 79€/month including 19% VAT (1,000 Credits/month, API Budget prepaid at 9 ct per Credit); Enterprise: Custom pricing. Individual actions cost: Search 1 Credit, Full text of decisio
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| Key features | - Certified mail delivery with tracking
- Signed delivery proof via email
- Letters mailed every business day
- Legally valid cancellation letter
- Cancellation confirmation follow-up
- Company address database
- Money-back guarantee within 10 business days
- Typically delivered in 2 to 5 business days
| - REST API with OpenAPI documentation
- MCP-Server for AI assistant integration
- SDKs for five languages: JavaScript, TypeScript, Python, PHP, Go, Rust
- Semantic search with AI reranking
- Citation check for legal documents
- Reference network between court decisions
- Source anchoring to original documents with margin numbers
- Research map: single question returned as map of norms and decisions
- Agent Skills for Claude with research and citation checking
- Full-text access to German court decisions
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| What makes it different | - Certified mail with return receipt creates legally enforceable proof
- Removes need to call, email or navigate automated systems
- Handles companies with strict renewal cutoff policies
- Provides documented proof for dispute resolution
- Simple two-minute ordering process
| - Multiple access methods unified: REST API, MCP-Server, and SDKs all use the same token and access the same data
- Integrated with Claude and ChatGPT for AI-powered legal research
- Data processing in Germany with optional KI processing without external services for Enterprise
- No per-user pricing; shared credit allowance for entire organization
- Specialized German law focus with domain-specific API endpoints
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ▲ +2 (up) since last check | 5 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 0 | 10 |
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| Referring domains (Majestic) | 0 | 4 |
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5 details filled in for both companies.
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