Signupgenius MCP server

by chrischall·io.github.chrischall/signupgenius-mcp·v2.0.0

SignUpGenius for Claude — sign-ups, slots, groups, and RSVPs. Free accounts or Pro API key.

B83/100grade B

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Safety scan

B83/100

Adoption

Growing

0 stars632 downloads/wk

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Nobody has reviewed Signupgenius 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

no findings

Code scan22 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
Maintenancelast push 1 days ago15/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Overall 83/100. 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 signupgenius-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add signupgenius-mcp -- npx -y signupgenius-mcp

Is Signupgenius MCP server safe?: Mostly: it is graded B (83/100). Read the Signupgenius safety report
How do I install Signupgenius?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Signupgenius need an API key?: Yes. The registry entry asks for SIGNUPGENIUS_PASSWORD, SIGNUPGENIUS_USER_KEY.
Is Signupgenius maintained?: The last commit was 2 days ago (2026-09-17). The latest release is v2.0.0.

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

SIGNUPGENIUS_EMAILSignUpGenius login email (recommended). Pair with SIGNUPGENIUS_PASSWORD for session mode — works on free accounts. No SSO/2FA.
SIGNUPGENIUS_PASSWORDsecretSignUpGenius password (recommended) — required iff SIGNUPGENIUS_EMAIL is set.
SIGNUPGENIUS_USER_KEYsecretSignUpGenius Pro API key (Pro Tools > API Management). Required only for slot REPORTS — Pro subscription needed.
SIGNUPGENIUS_NAMEFriendly account name used in startup logs.
SIGNUPGENIUS_BASE_URLOverride the default JSON API base (v2/k for key mode, v3 for session mode).
SIGNUPGENIUS_LEGACY_BASE_URLSession mode only: override the host for legacy /SUGboxAPI.cfm calls. Defaults to https://www.signupgenius.com.
SIGNUPGENIUS_LOGIN_URLSession mode only: override the login-form host. Defaults to https://www.signupgenius.com.
SIGNUPGENIUS_DISABLE_FETCHPROXYSet to 1 to skip the fetchproxy browser-extension fallback (missing creds become a hard error — useful in headless CI).
SIGNUPGENIUS_SESSION_CACHESet to false to disable the on-disk session cache and re-authenticate on every process start. Defaults to enabled.
SIGNUPGENIUS_SESSION_FILEAbsolute path for the session cache file. Defaults to $MCP_DATA_DIR/.signupgenius-mcp/session.json.

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

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