CompatLab MCP Server
by siddiksawaniio.github.siddiksawani/compatlabv1.0.0
Read recorded npm loading evidence across pinned Node.js, Bun and Deno runtimes.
context tax
pending
security
100/100
cold start
hosted
freshness
Active3d ago
Our reading of CompatLab, from the data
CompatLab is an MCP server from siddiksawani, listed in the official MCP Registry.
Its 2 tools add about 386 tokens to every model turn (measured 2026-10-19).
Maintenance is active: the last public signal was 3 days ago (2026-10-15).
It runs as a hosted endpoint, so there is nothing to install.
Install CompatLab MCP server
Install in Claude Code
claude mcp add --transport http compatlab https://compatlab.me/mcpInstall in Cursor
{
"mcpServers": {
"compatlab": {
"url": "https://compatlab.me/mcp"
}
}
}Install in Claude Desktop
{
"mcpServers": {
"compatlab": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://compatlab.me/mcp"
]
}
}
}Or add it as a custom connector under Settings → Connectors. The config above bridges via mcp-remote.
Install in VS Code
{
"servers": {
"compatlab": {
"type": "http",
"url": "https://compatlab.me/mcp"
}
}
}Install in Windsurf
{
"mcpServers": {
"compatlab": {
"serverUrl": "https://compatlab.me/mcp"
}
}
}Remote endpoints
- streamable-http
https://compatlab.me/mcp
Context tax
Connecting this server adds ~386 tokens of tool definitions to every model turn (lean, 2 tools). Measured 2026-10-19 via its hosted endpoint; o200k tokenizer, worst case for clients that load all tools up front. How we measure
| Model | Per 1,000 turns | With prompt caching |
|---|---|---|
| Claude Opus 5.5 | $1.54 | $0.077 |
| Claude Sonnet 5.5 | $0.772 | $0.077 |
| Claude Haiku 5.5 | $0.039 | — |
Input prices as of 2026-10-06. Excludes your own prompt and output.
Tools (2)
get_report181 tokRead a retained report by UUID with runtime pins, coverage, failures, optional peers and current eligibility. Historical reports remain readable. Never starts a scan.
check_package109 tokResolve an exact npm package version (latest when omitted) and read eligible loading evidence across pinned Node.js, Bun and Deno. Never starts a scan. Missing evidence is not failure.
Security signals
100/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.
Deductions
No findings from the checks that ran.
Checks
- ✓Repository hygiene (archived, activity, license, security policy)
- ✓Tool descriptions (prompt-injection and hidden-text heuristics)
- ○Package metadata (install scripts, provenance) — pending
- ○Source scan (secrets, CVEs, risky code) by vectra-guard — pending
Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules
Freshness
Active — last maintenance signal 3d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-10-15 · 3d ago · GitHub
Latest release
2026-10-15 · 3d ago · GitHub · production-019ccc6c5135ee0b541efb268316aa7dcec612f2
Package published
no data · npm/PyPI
Registry entry updated
2026-10-09 · 9d ago · official registry · v1.0.0
FAQ
›How do I install the CompatLab MCP server in Claude Code?
Run: claude mcp add --transport http compatlab https://compatlab.me/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does CompatLab require an API key?
No required environment variables are declared in its published metadata.
›Can I use CompatLab as a remote (hosted) MCP server?
Yes. It is a hosted MCP server; connect to its URL with any client that supports remote MCP.
›Is CompatLab in the official MCP registry?
Yes, as io.github.siddiksawani/compatlab.
Sources and method
- Official MCP Registry entry
- updated 2026-10-09
- GitHub repository
- fetched 2026-10-19
- Tool list (tools/list), measured by us
- 2026-10-19
- Security signals, computed by us
- 2026-10-19
- Last checked against all sources
- 2026-10-19
The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.