INDIVIDUAL MCP TOOL

verify_document_hash

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

free-sign.comnone authenticationAvailability not checked

LIVE ENDPOINT

https://free-sign.com/mcp

No auth detected

Connect to this endpoint to inspect the live schema for verify_document_hash and invoke it with your own arguments.

{}

Inferred read-only · medium confidence · heuristic, not a guarantee.

No write-capable action terms were found; this is not proof that invocation has no side effects.

CONNECT WITH APPROVAL

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.free-sign]
url = "https://free-sign.com/mcp"
enabled = true

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: free-sign
Remote MCP URL: https://free-sign.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "free-sign": {
      "url": "https://free-sign.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "free-sign": {
      "type": "http",
      "url": "https://free-sign.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

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

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

create_signing_envelope — Create a FreeSign envelope from a PDF 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.
get_ots_proof — Return the .
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 and per-envelope seq contiguity are checked.