Semiotic MCP server

by nteract·io.github.nteract/semiotic·v3.10.3

Verified React chart generation: select, validate, repair, render, and inspect charts through MCP.

B82/100grade B

What users say

No reviews yet

Safety scan

B82/100

not scanned yet

Adoption

Widely used

2.7k stars4.2k downloads/wk

Reviews

Nobody has reviewed Semiotic yet.

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

Tool list not cached yet. `describe` through the gateway fetches it live.

Not scanned yet. New registry listings are scanned within a day of import.

claude mcp add --transport http semiotic https://semiotic-mcp-server-481507046413.us-west1.run.app/mcp

Is Semiotic MCP server safe?: Mostly: it is graded B (82/100). Read the Semiotic safety report
How do I install Semiotic?: It runs remotely at semiotic-mcp-server-481507046413.us-west1.run.app. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Semiotic need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Semiotic maintained?: The last commit was in the last day (2026-09-19). The latest release is v3.10.3.
Is Semiotic up?: 100% of our last 3 checks got an answer. We check remote servers about four times a day.

With the gateway added, ask your agent for it by name:

agent prompt

call io.github.nteract/semiotic → <tool>

Free per call. Metered, capped by your key, logged for reliability.

https://semiotic-mcp-server-481507046413.us-west1.run.app/mcp

streamable-http

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.

[![mcp.market](https://mcp.market/badge/nteract-semiotic.svg)](https://mcp.market/server/nteract-semiotic)