
Agentscore
io.github.ThezenmonsterPublished by GitHub account Thezenmonsterv2.2.0Updated Oct 27, 2026
MCP security trust layer: scan packages, inspect repos, check exposure, monitor changes.
Overview
AgentScore MCP server that lets an assistant scan MCP packages for security issues, get allow/warn/block trust verdicts, and check incident exposure.
- What you can do
- Scan and rate packages: full security scan of install scripts, prompt injection, source patterns and provenance, plus a trust verdict with risk score
- Inspect a local repository for MCP dependencies and summarise verdicts for each detected package
- Generate or write a GitHub Actions Policy Gate workflow file into the repo for CI enforcement
- Incident response: find monitored MCP servers that depend on a given package, and query an abuse database for reported packages or agents
- Check whether a package is under continuous monitoring and view its scan history
- When to use it
- Useful when deciding whether an MCP package or server is safe to install, when auditing a repository's MCP dependencies, or when a dependency is compromised and you need to know which MCP servers are affected. Also fits teams that want to turn one-off checks into a CI policy gate.
- Requirements
- Runs locally over stdio, typically started with npx from the npm package @agentscore-xyz/mcp-server, so Node.js and network access are needed. The README states no API key and zero config; the manifest declares no environment variables or headers. Writing the CI workflow requires a GitHub repository.
Installation
In SourceWeft
- Open Agentscore in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
@agentscore-xyz/mcp-server
MCP security trust layer. Scan packages, get trust verdicts, inspect repo-wide MCP dependencies, generate Policy Gate setup, install the CI workflow directly, check incident exposure, and query the abuse database. Eight tools for MCP security decisions. No API key, zero config.
Scan any MCP package for security issues: agentscores.xyz
Quick Start
Claude Desktop
Add to your claude_desktop_config.json:
Cursor / Any MCP Client
What This Does
Your AI can now make security decisions about MCP packages:
You: "Is exa-mcp-server safe to install?"
Claude: calls get_verdict "Verdict: ALLOW. Score 90/100, LOW risk. No provenance attestations (published by personal account). 9 tools exposed including web_search_exa and crawling_exa."
You: "The axios package was compromised. Which MCP servers are affected?"
Claude: calls check_exposure "Multiple monitored MCP servers depend on axios, including exa-mcp-server, tavily-mcp, and figma-mcp."
You: "Scan @azure-devops/mcp for security issues"
Claude: calls scan_package "Score 75/100, MODERATE risk. Found: preinstall script modifying npm registry config. No provenance attestations."
You: "Check this repo for MCP dependencies"
Claude: calls check_my_repo "MCP dependencies found: 5. Two are warnings. Run generate_policy_gate_setup to turn these checks into a CI gate."
You: "Set up AgentScore Policy Gate for this repo"
Claude: calls install_policy_gate "The workflow file is written to
.github/workflows/agentscore-policy-gate.yml. Commit and push. GitHub OIDC will auto-provision the repo on first run."
Available Tools
From Ad-Hoc Scans To CI Enforcement
The MCP server now bridges one-off package checks into the sticky product:
- Run
check_my_repoto see every MCP package used in a repo. - Run
generate_policy_gate_setupto preview the OIDC-based GitHub Actions workflow. - Run
install_policy_gateto write the workflow file directly into the repo. - Commit and push. The first run auto-provisions through GitHub OIDC.
That turns "is this package safe?" into "this repo now enforces MCP dependency policy on every PR."
Risk Levels
What the Scanner Checks
- Install scripts (postinstall/preinstall hooks with network calls or code execution)
- Prompt injection patterns in package metadata
- Suspicious URLs (sketchy TLDs, ngrok, raw IPs)
- Source code patterns (command injection, unsafe eval, hardcoded secrets)
- Publisher provenance (trusted publishing, attestations)
- Dependency count and metadata completeness
- MCP tool definitions extracted from published source
Monitoring
AgentScore continuously monitors hundreds of MCP packages. The check_exposure and monitor_status tools use this live dataset. When a package like axios gets compromised, you can instantly find which MCP servers are affected.
Links
- Website: agentscores.xyz
- API Docs: agentscores.xyz/docs
- Methodology: agentscores.xyz/methodology
Licence
MIT
Source: README.md at commit c6c930c
Tools
0Version history
1- v2.2.0LatestSep 16, 2026
Score
50% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts