Connect FreeSign — Free e-signature and your agent gets 5 tools, among them create_signing_envelope, get_ots_proof, get_receipt. It answers at https://free-sign.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 5 September 2026; the last check, on 18 October 2026, succeeded.
Free e-signature for humans and AI agents — zero-document PDF signing from hashes only.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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 keypair locally and POSTs the public JWK to Inputs: document_sha256 |
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: "byterange"` commits to the signed document, `kin Inputs: envelope_id, anchor_id |
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. Inputs: envelope_id |
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 check Inputs: envelope_id |
verify_document_hash | Find FreeSign receipts matching a local document SHA-256 hash. Inputs: document_sha256 |
Every block below points at https://free-sign.com/mcp. Pick your client and copy.
claude mcp add --transport http freesign-free-e-signature https://free-sign.com/mcp
{
"mcpServers": {
"freesign-free-e-signature": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://free-sign.com/mcp"]
}
}
}{
"mcpServers": {
"freesign-free-e-signature": {
"url": "https://free-sign.com/mcp"
}
}
}{
"servers": {
"freesign-free-e-signature": {
"type": "http",
"url": "https://free-sign.com/mcp"
}
}
}{
"context_servers": {
"freesign-free-e-signature": {
"url": "https://free-sign.com/mcp"
}
}
}{
"mcpServers": {
"freesign-free-e-signature": {
"serverUrl": "https://free-sign.com/mcp"
}
}
}{
"mcpServers": {
"freesign-free-e-signature": {
"url": "https://free-sign.com/mcp"
}
}
}name: FreeSign — Free e-signature
version: 0.0.1
schema: v1
mcpServers:
- name: FreeSign — Free e-signature
type: streamable-http
url: https://free-sign.com/mcp{
"mcpServers": {
"freesign-free-e-signature": {
"httpUrl": "https://free-sign.com/mcp"
}
}
}{
"mcpServers": {
"freesign-free-e-signature": {
"type": "http",
"url": "https://free-sign.com/mcp"
}
}
}{
"mcpServers": {
"freesign-free-e-signature": {
"url": "https://free-sign.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Ffree-sign.com%2Fmcp&type=streamable_http&id=freesign-free-e-signature&name=FreeSign%20%E2%80%94%20Free%20e-signature
It answered our last check on 18 October 2026 in 164 ms. Over 10 checks since 5 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by free-sign.com and served from free-sign.com, the vendor's own domain: https://free-sign.com/mcp.
5, as returned by the server's own tools/list on 10 September 2026: create_signing_envelope, get_ots_proof, get_receipt, verify_audit_chain, verify_document_hash.
It answered our last check on 18 October 2026 in 164 ms. Over 10 checks since 5 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://free-sign.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.free-sign. Endpoint host: free-sign.com. ARD identifier: urn:air:com.free-sign:mcp:signing.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.