Siglio Mcp

com.esigndevPublished by esigndev.comv1.1.0Updated Oct 28, 2026

MCP server for Siglio. Lets an AI assistant send documents for e-signature by email or text.

VerifiedSTDIODesktop onlyProductivity & Workflow

Server details

Identifier: com.esigndev/siglio-mcp
Transport: STDIO
Runtime: Desktop only
Trust: Verified
Published: Sep 16, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to esigndev.com. It runs from a package rather than a hosted endpoint, so there is no endpoint to match against that domain.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Local MCP server for Siglio that lets an AI assistant send documents out for e-signature by email or text.

What you can do: Send documents for e-signature through Siglio, choosing email or text delivery.
Run against sandbox keys by default, with live sending only when explicitly enabled.
No individual tools are listed in the manifest, so the exact operations are not documented here.
When to use it: Use it when you want an assistant to hand documents to recipients for signing without leaving the chat, and you are comfortable starting in Siglio's sandbox before enabling live sending.
Requirements: Runs as a local stdio process installed from the npm package siglio-mcp, so Node.js is needed. Requires a Siglio API key in SIGLIO_API_KEY; sandbox keys start with sig_sandbox_ and live keys with sig_live_. Live keys are refused unless SIGLIO_ALLOW_LIVE is set to true. Desktop only.

Before you install

The server sends real documents to recipients by email or text once a live key is allowed, which is an outward-facing action. Keep SIGLIO_ALLOW_LIVE unset while testing so only sandbox keys run. The API key in SIGLIO_API_KEY is a secret; the README points to the provider site for obtaining one.

Installation

In SourceWeft

Open Siglio Mcp in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Tools

SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

v1.1.0LatestOct 2, 2026
v1.0.5Sep 23, 2026
v1.0.4Sep 16, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
License10 pts
Declare a license in the repository or the registry entry.