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Sigma MCP Connector

Name: Sigma MCP Connector
Author: sigmadev

Turn WordPress into a secure, role-scoped MCP server so Claude, Codex, VS Code, and Cursor AI can read and edit content via OAuth 2.0.

Sigma MCP Connector ranks #53,985 among WordPress.org plugins with 0+ active installations, is #1,409 of 1,585 in the Authentication category, and was last updated Sep 7, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Tested up to WP 7.0.5 (Current: 7.1.1)

v1.0.0 Current Version v1.0.0

Updated 1 week ago Last Update on 07 Sep, 2026

Refreshed 10 hours ago Last Refreshed on

#1,409 of 1,585 in Authentication Downloads -12.9% this week Actively maintained

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Rank

#53,985

— No change

Active Installs

-4%

KW Avg Position

121

— No change

Downloads

271

+16 today

Support Resolved

— No change

Rating

Review 0 out of 5

0 (0 reviews)

Next Milestone 10

Total Progress 30%

0+ 10+

28,499

Ranks to Climb

Growth Needed

8,000,000

Active Installs

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Rank Changes

Current #53,985

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

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Plugin Details

Version: 1.0.0
Last Updated: Sep 07, 2026
Requires WP: 6.0+
Tested Up To: 7.0.5
PHP Version: 8.0 or higher
Author: sigmadev

Support & Rating

Rating: ☆ ☆ ☆ ☆ ☆ 0
Reviews: 0
Support Threads: 0
Resolved: 0%

Keywords

AI Claude codex mcp oauth

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Frequently Asked Questions

Common questions about Sigma MCP Connector

No, not automatically. Sigma MCP Connector does not make outbound connections to any AI provider and does not phone home for analytics, licensing, or updates. It works the other way around: it turns your own WordPress site into an MCP server that a client you explicitly register can connect into — and only after a logged-in WordPress user explicitly approves an OAuth consent screen naming that specific client. From that point on, every request runs as that WordPress user, restricted to their existing WordPress role and capabilities, and is written to the Activity Log.

Exactly what the authorizing WordPress user's role allows — nothing more. Every one of the 27 tools is checked with current_user_can() against a specific WordPress capability on every single call, not just at connection time. Revoke the user's role, or revoke the token from the Connections page, and access stops immediately.

OAuth client registrations, tokens, and the activity log are stored in five plugin-owned database tables on your own WordPress database — nothing is sent off-site. You control log retention (or disable it) from the Activity Log screen.

Any MCP-aware client that supports OAuth 2.0 Authorization Code + PKCE — Claude.ai, Claude Desktop, Codex, VS Code (GitHub Copilot), and Cursor AI are documented in detail on the plugin's Documentation screen, with copy-paste config examples for each.

Yes. Deactivate or delete an OAuth client, or revoke an individual token or all tokens for a user, from Sigma MCP → Connections — access is checked on every request, so revocation takes effect immediately.

It works over HTTP for local development, but HTTPS is strongly recommended (and the admin screen will warn you) in production, since OAuth access and refresh tokens should never travel unencrypted.

Deactivating stops the OAuth/MCP endpoints and clears the scheduled log-purge cron job, but does not delete any data. Uninstalling (deleting) the plugin removes its database tables, options, and transients.