Siglio MCP server

by esigndev.com·com.esigndev/siglio-mcp·v1.0.4

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

C55/100grade C

What users say

No reviews yet

Safety scan

C55/100

Adoption

New

792 downloads/wk

Reviews

Nobody has reviewed Siglio yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

No tool declarations could be read from the package source. They show once the server is installed.

scanner v0.1.3 · 2026-09-19 · same rubric, same numbers if you re-run it

1 low

Code scan2 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitystatic API keys via environment variables6/15
Maintenanceno repository listed3/15
Maintainer identityno repository or website to verify2/10

Overall 55/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

Runs npx -y siglio-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add siglio-mcp -- npx -y siglio-mcp

Is Siglio MCP server safe?: With care: it is graded C, so read the findings first (55/100). Read the Siglio safety report
How do I install Siglio?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Siglio need an API key?: Yes. The registry entry asks for SIGLIO_API_KEY.
Is Siglio maintained?: The latest release is v1.0.4.
What can I use instead of Siglio?: Servers from other publishers that do the same job: Fluxmail MCP server, MCP server and MX Probe MCP server. Compare all Siglio alternatives.

Same job from other publishers: the closest match first, then the best rated.

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Local package. It runs on your machine, not through the gateway.

SIGLIO_API_KEYsecretYour Siglio API key. Sandbox keys start with sig_sandbox_ and live keys start with sig_live_. Get one at https://esigndev.com
SIGLIO_ALLOW_LIVESet to true to allow a live key. Without it, live keys are refused and only sandbox keys will run. Leave unset while testing.

Claim it to keep the listing current and reply to reviews. Claiming never changes the grade or hides a review.

Shows the safety grade and links back to this page. It updates itself after every scan and review.

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