Reagent Lab MCP Server
by capybaristio.github.capybarist/reagentlabv0.1.0
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context tax
needs auth
security
97/100
cold start
hosted
freshness
Activetoday
Our reading of Reagent Lab, from the data
Reagent Lab is an MCP server from capybarist, listed in the official MCP Registry.
Its endpoint requires sign-in or an API key just to list tools, so we haven't measured its token cost; we never use real credentials.
Maintenance is active: the last public signal was in the last day (2026-10-18).
It runs as a hosted endpoint, so there is nothing to install.
Install Reagent Lab MCP server
Install in Claude Code
claude mcp add --transport http reagentlab https://api.reagentlab.capybaralabs.tech/mcpInstall in Cursor
{
"mcpServers": {
"reagentlab": {
"url": "https://api.reagentlab.capybaralabs.tech/mcp"
}
}
}Install in Claude Desktop
{
"mcpServers": {
"reagentlab": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://api.reagentlab.capybaralabs.tech/mcp"
]
}
}
}Or add it as a custom connector under Settings → Connectors. The config above bridges via mcp-remote.
Install in VS Code
{
"servers": {
"reagentlab": {
"type": "http",
"url": "https://api.reagentlab.capybaralabs.tech/mcp"
}
}
}Install in Windsurf
{
"mcpServers": {
"reagentlab": {
"serverUrl": "https://api.reagentlab.capybaralabs.tech/mcp"
}
}
}Remote endpoints
- streamable-http
https://api.reagentlab.capybaralabs.tech/mcp
Security signals
97/100 — 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 security policy (SECURITY.md)-3
Checks
- ✓Repository hygiene (archived, activity, license, security policy)
- ○Package metadata (install scripts, provenance) — pending
- ○Tool descriptions (prompt-injection and hidden-text heuristics) — 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 today. The newest of the signals below sets the band.
Last commit (default branch)
2026-10-18 · today · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-10-14 · 4d ago · official registry · v0.1.0
FAQ
›How do I install the Reagent Lab MCP server in Claude Code?
Run: claude mcp add --transport http reagentlab https://api.reagentlab.capybaralabs.tech/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Reagent Lab require an API key?
No required environment variables are declared in its published metadata.
›Can I use Reagent Lab 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 Reagent Lab in the official MCP registry?
Yes, as io.github.capybarist/reagentlab.
Sources and method
- Official MCP Registry entry
- updated 2026-10-14
- GitHub repository
- fetched 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.