Back to search
100
MCP live MCP 2025-06-18 http

FreeSign

coderai/freesign

FreeSign is a free e-signature (electronic signature, esignature) service that runs entirely in the user's browser - no upload, no account, no monthly cap, no watermark. It produces a real, standards-based PAdES-B-T electronic signature legally recognised under US ESIGN/UETA and EU eIDAS (Advanced Electronic Signature).

Website ↗
Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
509ms
last probe
Tools
5
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://free-sign.com/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
5 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
5 items in total; 3 or more earns these points.
pass Describes itself 10/10
321 characters; more than 30 earns these points.

Tools · 5

create_signing_envelope

Create a FreeSign envelope from a PDF SHA-256 hash. Do not send PDF bytes. The created envelope is NOT yet session-bound — the browser that opens the returned signing_url generates an ECDSA P-256 keyp…

verify_document_hash

Find FreeSign receipts matching a local document SHA-256 hash.

get_receipt

Return the envelope record (including final_pdf_sha256, final_signature_base64url, final_payload_json), per-signer signing receipts, and OpenTimestamps anchor metadata. Evidence only, never PDF bytes.

get_ots_proof

Return the .ots proof (base64) for a given OpenTimestamps anchor on an envelope. Use the official `ots-cli` to verify offline against Bitcoin block headers. Each seal has two anchors: `kind: "byterang…

verify_audit_chain

Return an envelope's append-only audit-event hash chain together with a server-computed integrity verdict: every event_hash is recomputed from its canonical material, and the prev_event_hash linkage a…

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://free-sign.com/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "freesign": {
      "url": "https://free-sign.com/mcp",
      "transport": "http"
    }
  }
}