MCP.Market

Carbon Arc MCP server

online · 96% uptime
by Carbon-Arc·io.github.Carbon-Arc/mcp·v0.1.0·33 stars
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The infrastructure for the AI economy: primitives for inference, agents, and decisions.

A87/100grade A
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Safety scan
A87/100

full report

Adoption
Growing

33 stars

Reviews

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

Carbon Arc tools

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

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 190ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenancelast push 112 days ago8/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 87/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Carbon Arc compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
87/100
higher than 73% of 48,255 servers
Uptime
96%
of our recent checks; the typical remote server answers 100%
Response time
87 ms
faster than 87% of 30,031 servers
GitHub stars
33
more than 92% of 28,688 servers

Install Carbon Arc in Claude Code, Cursor or VS Code

claude mcp add --transport http mcp https://mcp.carbonarc.ai
Add to Cursor

What the publisher says

From the Carbon Arc repository's README, as published. We do not edit it. Read it on GitHub

Carbon Arc MCP

  • Endpoint: https://mcp.carbonarc.ai (Streamable HTTP)
  • Auth: OAuth 2.0 + Dynamic Client Registration
  • Docs:

Getting access

To get an API Token:

  1. Sign up for Carbon Arc at
  2. Log into your account
  3. Get your API Token from your user profile

Questions or need help?

  • Support:
  • Sales:

Install via Cursor

  1. Open Cursor → Plugins → Browse Marketplace
  2. Search "Carbon Arc" → Install

License: Apache 2.0

Nothing above is checked by us. What we check is on the safety report.

Carbon Arc: common questions

Is Carbon Arc MCP server safe?
Yes, by our scan: it is graded A (87/100). Read the Carbon Arc safety report
How do I install Carbon Arc?
It runs remotely at mcp.carbonarc.ai. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Carbon Arc need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is Carbon Arc maintained?
The last commit was 150 days ago (2026-06-07). The latest release is v0.1.0.
Is Carbon Arc up?
96% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Carbon Arc compare with other MCP servers?
safety score 87/100 (higher than 73% of 48,255 servers); uptime 96% (of our recent checks; the typical remote server answers 100%); response time 87 ms (faster than 87% of 30,031 servers). Full comparison.