MCP Observatory

CI-native security testing for MCP servers. Attack simulation, schema drift detection, and health scoring before agents depend on them.

MCP Servers HTML Listed MIT

Is MCP Observatory safe? Strong public trust posture, backed by multiple independent signals.

OSSF Scorecard 7.6 / 10
Provenance Attested
Signed commits 40%
Last push 4d ago
Compare MCP Observatory
Suggest a correction

In detail: MCP Observatory scores 82.6/100 (Grade A), ranked #118 of 1325 tracked open-source AI agent projects, on evidence coverage B (3 of 5 independent signal types). The public evidence: its packages ship with cryptographic provenance; OSSF Scorecard rates its supply-chain practices 7.6/10; 40% of recent commits are signed; last pushed 2026-09-22. Every point is earned from checkable signals — never paid placement. How scoring works →

How MCP Observatory compares in MCP Servers

  1. #50 XcodeBuildMCP 83.0 +0.4
  2. #51 Esa MCP Server 82.8 +0.2
  3. #52 MCP Observatory 82.6 this agent
  4. #53 AIquila — Nextcloud MCP Server 82.5 −0.1
  5. #54 Kubernetes MCP Server 82.2 −0.4

Bars show each HVTrust score; the tick marks MCP Observatory’s 82.6.

Where the 82.6 comes from

HVTrust dimensions vs the MCP Servers average

82.6 / 100 · 100.0% confidence

MCP Observatory MCP Servers average (775 agents)

Safety / Integrity50% OSSF Scorecard · 30% provenance · 20% signed commits
19.0 / 25
8.7 above avg 10.3
Identity / Provenance60% listing status · 40% build provenance
18.0 / 18
4.6 above avg 13.4
Transparency50% declared license · 50% OSSF Scorecard
15.0 / 17
2.8 above avg 12.2
Maintenance60% last-push freshness · 40% commit activity
17.3 / 20
5.3 above avg 12.0
AdoptionLog-scaled stars · package downloads
8.6 / 20
1.4 above avg 7.2

Quick Trust Read

What Would Improve It
Increase the share of verified signed commits for clearer maintainer identity.
Recent Changes
2026-09-23
Mcp Status Changed
Detected MCP server support changed: none → implemented
2026-09-23
Provenance Added
Package provenance attestation detected
2026-09-23
Grade Changed
Trust grade D → A
Maintainer Checklist
Increase signed commits Raise the share of verified-signed commits to make maintainer identity and release history easier to trust.
60.5
Activity sub-score · out of 100
#52

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption. Grade A reflects the trust score band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Evidence coverage B is separate — it grades how many independent signal types back the score (3 of 5), so a high score on thin evidence stays visible. Full methodology →

Signals refreshed 2026-09-26 12:32 UTC · Repo last pushed 4 days ago

Rank Trend

2026-08-11 2026-09-26

Activity & Reach

Stars
140
Forks
15
Last Push
2026-09-22
4 days ago
Commits (4 wk)
24
Downloads (7d)
383
npm
HN mentions (30d)
—
Open Issues
5
Rank Change
▼2
was #116

Analysis

Activity Inputs

60.5 / 100
StarsRepository reach
12.9 / 30
FreshnessLast push recency
24.4 / 25
ActivityRecent commits
17.4 / 25
CommunityFork signal
5.6 / 20

Supply Chain Trust

Package Provenance
Verified
npm attestation
OSSF Scorecard
7.6 / 10
OpenSSF Scorecard · scanned Sep 24, 2026
Signed Commits
40%
of last 100 commits verified
Binary-Artifacts 10
Branch-Protection 3
CI-Tests 10
CII-Best-Practices 0
Code-Review 0
Contributors 0
Dangerous-Workflow 10
Dependency-Update-Tool 10
Fuzzing 0
License 10
Maintained 10
Packaging 10
Pinned-Dependencies 9
SAST 9
Security-Policy 10
Signed-Releases -1
Token-Permissions 10
Vulnerabilities 10

Common questions about MCP Observatory

Public supply-chain signals for MCP Observatory are strong: it has multiple independent trust indicators in place. This does not replace your own security review, but MCP Observatory carries less obvious unverified-evidence risk than projects with thin signals.
Does MCP Observatory publish package provenance?
Yes. MCP Observatory's package releases carry build provenance attestations, which cryptographically link the published package back to its source repository and CI workflow.
Does MCP Observatory have an OpenSSF Scorecard?
MCP Observatory has an OpenSSF Scorecard score of 7.6/10. The Scorecard checks for branch protection, signed releases, dependency updates, fuzzing, code review, and other supply-chain hygiene items. See the full check breakdown on this page.
Is MCP Observatory actively maintained?
Actively maintained. The repository was pushed to within the last 4 day(s).
What license does MCP Observatory use?
MCP Observatory ships under MIT. A declared, OSI-approved license is one of the transparency signals HVTrust scores.
Are MCP Observatory's commits signed?
40% of the last 100 commits to MCP Observatory 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
high confidence
Implemented
MCP Observatory appears to expose MCP server capabilities.
Detailed evidence is not shown in the public view.
External Service Dependencies
low confidence
None detected
No clear third-party provider dependency detected.
Credential signal: API keys or service config markers documented.
Tool / Plugin Surface
high confidence
1 tags
Broad capability areas detected.
  • code
Detailed evidence is not shown in the public view.
Package Provenance Drift
high confidence
Match
Published package metadata matches the tracked repo
Detailed evidence is not shown in the public view.
  • MCP signal live
  • External deps live
  • Tool / plugin surface live
  • Package provenance drift live
How this surface has changed

Detected changes to MCP Observatory's runtime surface and supply-chain posture, from daily public-signal snapshots. A change here means our detectors see something different — a genuinely changed capability, or better evidence of an existing one.

2026-09-23
Mcp Status Changed
Detected MCP server support changed: none → implemented
2026-09-23
Provenance Added
Package provenance attestation detected

Maintain MCP Observatory?

For maintainers

HVTrust scores MCP Observatory 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.

Reputation Timeline

Signal history
Rank 20HVTrust 3Grade 3Listed 2Scorecard 1Delisted 1Provenance 1MCP 1
2026-09-23
Mcp Status Changed
Detected MCP server support changed: none → implemented
2026-09-23
Provenance Added
Package provenance attestation detected
2026-09-23
Grade Changed
Trust grade D → A
2026-09-23
Rank Moved
Rank rose 507 spots (#617 → #110)
2026-09-23
HVTrust Changed
HVTrust up 49.7pts (33.2 → 82.9)
2026-09-22
Newly Listed
First tracked at rank #617
2026-09-21
Removed From Active Tracking
Removed from active tracking
2026-09-17
Rank Moved
Rank dropped 10 spots (#83 → #93)
2026-09-07
Grade Changed
Trust grade C → A
2026-09-07
Rank Moved
Rank rose 605 spots (#675 → #70)
2026-09-07
HVTrust Changed
HVTrust up 29.3pts (55.8 → 85.1)
2026-09-05
Rank Moved
Rank dropped 82 spots (#592 → #674)
2026-09-04
Rank Moved
Rank dropped 17 spots (#575 → #592)
2026-09-03
Rank Moved
Rank dropped 34 spots (#541 → #575)
2026-09-02
Scorecard Added
OSSF Scorecard: 7.6/10
2026-09-02
Grade Changed
Trust grade D → C
2026-09-02
Rank Moved
Rank rose 258 spots (#799 → #541)
2026-09-02
HVTrust Changed
HVTrust up 10.8pts (45.1 → 55.9)
2026-09-01
Rank Moved
Rank dropped 23 spots (#776 → #799)
2026-08-31
Rank Moved
Rank dropped 34 spots (#742 → #776)
2026-08-30
Rank Moved
Rank dropped 26 spots (#716 → #742)
2026-08-29
Rank Moved
Rank dropped 47 spots (#669 → #716)
2026-08-28
Rank Moved
Rank dropped 21 spots (#648 → #669)
2026-08-27
Rank Moved
Rank dropped 22 spots (#626 → #648)
2026-08-26
Rank Moved
Rank dropped 96 spots (#530 → #626)
2026-08-24
Rank Moved
Rank dropped 11 spots (#518 → #529)
2026-08-22
Rank Moved
Rank rose 10 spots (#530 → #520)
2026-08-17
Rank Moved
Rank rose 11 spots (#533 → #522)
2026-08-13
Rank Moved
Rank dropped 12 spots (#516 → #528)
2026-08-12
Rank Moved
Rank rose 10 spots (#526 → #516)
2026-08-10
Rank Moved
Rank dropped 18 spots (#509 → #527)
2026-08-08
Newly Listed
First tracked at rank #510

Embed Badge Badge guide for maintainers →

For maintainers
HVTrust 82.6 Grade A
Markdown:
[![HVTrust](https://hvtracker.net/badge/mcp-observatory.svg)](https://hvtracker.net/agents/mcp-observatory)
HTML:
<a href="https://hvtracker.net/agents/mcp-observatory"><img src="https://hvtracker.net/badge/mcp-observatory.svg" alt="HVTrust"></a>

Other agents in MCP Servers

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