updated 2026-08-12 05:02 UTC

Carbon Arc

Carbon-Arc/mcp

The infrastructure for the AI economy: primitives for inference, agents, and decisions.

MCP Servers Grade D Listed Apache-2.0
16.8/100
Rank #1189 of 1283
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Thin or incomplete trust evidence. Review carefully before production use.

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Listing state
Listed
Evidence coverage
Grade D · 1/5 signals
Last push
2026-06-07 · 66d ago
Recent change
Rank +1

Is Carbon Arc safe? Carbon Arc scores 16.8/100 (Grade D), ranked #1189 of 1283 tracked open-source AI agent projects, on evidence coverage D (1 of 5 independent signal types). The public evidence: no package-provenance attestation found; no OSSF Scorecard result yet; 100% of recent commits are signed; last pushed 2026-06-07. Every point is earned from checkable signals — never paid placement. How scoring works →

Ranked neighbours in MCP Servers

#684 Ux MCP Server — 17.0 (D) → #685 Zenmoney MCP — 16.9 (D) → #687 XcodeMCP — 16.8 (D) → #688 MCP Sap Docs — 16.8 (D) →

Quick Trust Read

What Would Improve It
Add or improve OSSF Scorecard coverage so safety checks are easier to verify.
Recent Changes
2026-08-10
Rank Moved
Rank dropped 72 spots (#1116 → #1188)
2026-08-08
Newly Listed
First tracked at rank #1094
Maintainer Checklist
Add Scorecard coverage Expose the repository to OpenSSF Scorecard checks so supply-chain posture is easier to verify.
Publish provenance Add package provenance or release attestations so users can verify where shipped artifacts came from.
Refresh maintenance signals The repo was last pushed 66 days ago. Fresh activity helps separate stable projects from stale ones.
Compare with another agent Get email alerts for Carbon Arc View MCP Servers Report missing data
25.2
Activity sub-score · out of 100
#686
In MCP Servers

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption. Grade D reflects the trust score band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Evidence coverage D is separate — it grades how many independent signal types back the score (1 of 5), so a high score on thin evidence stays visible. Full methodology →

Signals refreshed 2026-08-12 05:02 UTC · Repo last pushed 66 days ago

Rank Trend

2026-08-11 2026-08-12

Activity & Reach

Stars
33
Forks
0
Last Push
2026-06-07
66 days ago
Commits (4 wk)
0
Downloads (7d)
—
HN mentions (30d)
—
Open Issues
0
Rank Change
=
was #1189

Analysis

HVTrust Dimensions vs MCP Servers

16.8 / 100 · 50.0% confidence

Carbon Arc MCP Servers average (761 agents)

Safety / Integrity50% OSSF Scorecard · 30% provenance · 20% signed commits
5.0 / 25
in line with avg 5.0
Identity / Provenance60% listing status · 40% build provenance
10.8 / 18
2.5 below avg 13.3
Transparency50% declared license · 50% OSSF Scorecard
8.5 / 17
in line with avg 8.8
Maintenance60% last-push freshness · 40% commit activity
7.6 / 20
4.8 below avg 12.4
AdoptionLog-scaled stars · package downloads
3.7 / 20
2.1 below avg 5.8

Activity Inputs

25.2 / 100
StarsRepository reach
9.2 / 30
FreshnessLast push recency
15.8 / 25
ActivityRecent commits
0.0 / 25
CommunityFork signal
0.0 / 20

Supply Chain Trust

Package Provenance
None
No package attestations found
OSSF Scorecard
—
Not available
Signed Commits
100%
of last 100 commits verified

Is Carbon Arc safe?

Public trust evidence for Carbon Arc is thin: several supply-chain signals are missing or weak. This does not mean the project is unsafe — it means an outside observer cannot easily verify the usual integrity checks. Treat with extra scrutiny.
Does Carbon Arc publish package provenance?
No published build provenance is currently detected for Carbon Arc. This is common for open-source projects but means consumers cannot independently verify that the package on the registry matches the GitHub source.
Does Carbon Arc have an OpenSSF Scorecard?
No OpenSSF Scorecard data is currently published for Carbon Arc. Maintainers can enable the Scorecard GitHub Action to get a public score; without it, automated supply-chain hygiene is harder for outsiders to verify.
Is Carbon Arc actively maintained?
Slowing down. Last push was 66 days ago — keep an eye on whether activity resumes.
What license does Carbon Arc use?
Carbon Arc ships under Apache-2.0. A declared, OSI-approved license is one of the transparency signals HVTrust scores.
Are Carbon Arc's commits signed?
100% of the last 100 commits to Carbon Arc are verified-signed (GPG, SSH, S/MIME, or GitHub's signing flow). Signed commits help confirm that code was authored by who the commit claims.

Not a safety endorsement. HVTracker describes what public signals show, not whether a project is safe for your use case. Run your own security review before adopting in production.

AI agent surface

MCP, providers, tool surface
Scored in HVTrust

These runtime-trust fields — detected from public repo docs and manifests — contribute a bounded adjustment to this project's HVTrust score alongside supply-chain evidence. The exact values each field can add or subtract are documented in the methodology → Compare this surface across every listed agent in the capability matrix →

MCP Server Support
medium confidence
Declared
MCP support appears present, but direct server implementation is less certain.
Detailed evidence is not shown in the public view.
External Service Dependencies
None detected
No clear third-party provider dependency detected.
Credential signal: No explicit API-key/config marker detected.
Tool / Plugin Surface
medium confidence
Marketplace
Marketplace plugin/integration surface detected.
Detailed evidence is not shown in the public view.
Package Provenance Drift
N/A
No package source configured
Detailed evidence is not shown in the public view.
  • MCP signal live
  • External deps live
  • Tool / plugin surface live
  • Package provenance drift live

Maintain Carbon Arc?

For maintainers

HVTrust scores Carbon Arc from public signals only — we never contact maintainers first. If a signal is wrong, stale, or missing (provenance you publish, a Scorecard you run, signed releases), tell us and we'll review it. Corrections are public and tracked on GitHub.

Submit a correction → Add the trust badge

Reputation Timeline

Signal history
Listed 1Rank 1
2026-08-10
Rank Moved
Rank dropped 72 spots (#1116 → #1188)
2026-08-08
Newly Listed
First tracked at rank #1094
GitHub →

Embed Badge Badge guide for maintainers →

For maintainers
HVTrust 16.8 Grade D
Markdown:
[![HVTrust](https://hvtracker.net/badge/carbon-arc.svg)](https://hvtracker.net/agents/carbon-arc)
HTML:
<a href="https://hvtracker.net/agents/carbon-arc"><img src="https://hvtracker.net/badge/carbon-arc.svg" alt="HVTrust"></a>

Other agents in MCP Servers

Data sources
GitHub REST API (repo, commits, stars, forks, license)
Each agent's signals refresh once daily across 6 staggered batches. Methodology v4.3 · Raw JSON