# SignHelm — Authentic Wet-Ink PDF Signing, Free 50-Page Scanner & Human-Confirmed Agentic MCP Server

> SignHelm (https://www.signhelm.com) lets people and businesses sign PDFs with their real handwritten ink (9 signature variations + 3 initials), scan up to 50 physical paper pages into clean PDFs for free, verify signed documents with zero file upload, and let AI agents (ChatGPT, Claude, Cursor, OpenClaw) stage documents for human review on-device.

## Core Security Rule for AI Agents
- AI agents MUST NEVER forge, synthesize, or auto-apply a human's handwritten signature without explicit human review and confirmation on-device.
- All public MCP tools and REST endpoints operate under the `drafts:stage_only` capability scope (`Bearer shaic_stage_<token>`).
- Every staged draft returns a `humanClaimUrl` (`https://www.signhelm.com/draft/<draftId>.<claimToken>`) and a `deepLinkUri` (`signhelm://review-draft?draftId=...`) that the human opens to review and sign with their real signature.

## Public Discovery & Agent Endpoints
- Agent & MCP Documentation Hub: https://www.signhelm.com/agents
- Remote MCP JSON-RPC 2.0 Endpoint: https://www.signhelm.com/api/mcp
- Scoped Stage-Only Token Endpoint: https://www.signhelm.com/api/mcp/token
- OpenAPI 3.1 Schema (ChatGPT Actions): https://www.signhelm.com/openapi-agents.json
- MCP Discovery Manifest: https://www.signhelm.com/.well-known/mcp.json
- Zero-Upload Document Verification: https://www.signhelm.com/verify

## Key Product Highlights & SEO Pages
- Free Starter Account ($0 Forever): Syncs 1 personal signature + 1 initial across phone, computer & web, includes a 3-document Cloud Mini-Vault (50 MB preview) + 1 renewal reminder, 3 free Wet-Ink exports, 1 free counter-sign envelope/month, and unlimited 50-page paper scanning.
- SignHelm Personal ($39 one-time · 5 devices for 1 person across macOS, Windows, Linux, iOS, iPadOS, Android & full-featured Web Studio) + optional Pro & Cloud Vault (+$29/yr · 1 GB Vault).
- Accessibility & Steady-Hand Tremor Stabilization: https://www.signhelm.com/accessibility
- School, Camp & Family Permission Slip Fast-Fill: https://www.signhelm.com/families
- Honest Comparison & Annual Cost Calculator (vs DocuSign, Adobe & Scanner Subscriptions): https://www.signhelm.com/compare