Open-source e-signature with paid API and cloud hosting. See how ContractClaw delivers more — OTP verification, AI agent signing, and WhatsApp delivery — at a fraction of the cost.
| Feature | ContractClaw Sign | DocuSeal |
|---|---|---|
| Free tier | 5/mo forever | Self-hosted (free) |
| Per-document fee | $0 | $0.20/doc (API) |
| Starting price | $29/mo | $20/mo + $0.20/doc |
| OTP verification | ||
| QR code verification | ||
| RFC 3161 timestamp | ||
| AI agent signing | ||
| WhatsApp delivery | ||
| Contract analytics | ||
| Multi-party signing | ||
| India compliance (IT Act) | ||
| Global compliance (eIDAS/ESIGN) | ||
| Self-hosted option | ||
| White-label | ||
| API access | All plans | $20/mo + $0.20/doc |
| Bulk send | ||
| Template builder |
DocuSeal: $20/mo + $0.20/doc; 1,000 docs/mo costs $220/mo in API fees alone
ContractClaw: $29/mo flat with unlimited API calls and zero per-document charges
DocuSeal: Basic e-signature with no OTP, QR, or timestamping capabilities
ContractClaw: OTP + QR + RFC 3161 timestamps with India and global compliance built in
DocuSeal: Self-hosted requires your own servers, SSL, backups, and maintenance
ContractClaw: Fully managed cloud with 99.9% uptime SLA, plus self-hosted option available
| Contracts/mo | ContractClaw Sign | DocuSeal |
|---|---|---|
| 50 | $29/mo | $30 |
| 200 | $29/mo | $60 |
| 1000 | $29/mo | $220 |
ContractClaw Sign has zero per-document fees on all plans. Competitor pricing based on published rates.
We started by integrating DocuSeal — an open-source e-signature tool. The self-hosted version was free, but the moment we needed API access for our AI agents, costs jumped to $20/month plus $0.20 per document. At 1,000 documents per month, that is $220 in API fees alone — more expensive than DocuSign.
We then evaluated Documenso, another open-source option. Within a week of integration, we encountered four critical bugs: failed webhook deliveries, broken multi-party signing flows, timestamp inconsistencies, and silent PDF rendering failures. Rather than patching someone else's codebase forever, we built ContractClaw Sign from scratch — with OTP verification, QR codes, RFC 3161 timestamps, and AI agent signing as first-class features. Zero per-document fees. Zero compromise.
Export your DocuSeal templates and API integration code
Map DocuSeal API calls to ContractClaw API (similar REST patterns)
Configure verification and compliance settings for your use case
Test the integration and switch your API endpoint to ContractClaw
OTP verification, QR codes, AI agent signing, and WhatsApp delivery included. No credit card required.
Try ContractClaw Sign FreePricing and feature data verified as of 2026-03-15. We update this page regularly. If you spot an inaccuracy, let us know.