Glassbox Framework MCP Server
by thebarmaeffectio.github.TheBarmaEffect/glassbox-frameworkv1.0.3
Runtime constitutional verification for AI answers — claim reasoning, ECS, red team, audits.
context tax
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security
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cold start
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freshness
Maintained35d ago
Install Glassbox Framework MCP server
Install in Claude Code
claude mcp add glassbox-framework -e ANTHROPIC_API_KEY='<anthropic-api-key>' -- npx -y @glassbox-framework/mcpInstall in Cursor
{
"mcpServers": {
"glassbox-framework": {
"command": "npx",
"args": [
"-y",
"@glassbox-framework/mcp"
],
"env": {
"ANTHROPIC_API_KEY": "<anthropic-api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"glassbox-framework": {
"command": "npx",
"args": [
"-y",
"@glassbox-framework/mcp"
],
"env": {
"ANTHROPIC_API_KEY": "<anthropic-api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"glassbox-framework": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@glassbox-framework/mcp"
],
"env": {
"ANTHROPIC_API_KEY": "<anthropic-api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"glassbox-framework": {
"command": "npx",
"args": [
"-y",
"@glassbox-framework/mcp"
],
"env": {
"ANTHROPIC_API_KEY": "<anthropic-api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| ANTHROPIC_API_KEY | yes | yes | Your Anthropic API key (sk-ant-...). Required for the claim extractor, red team, constitution engines, and ECS coherence checks. One v1 tool (generate_trust_card) works without an API key — it's pure assembly + deterministic audit hashing. |
| GLASSBOX_MODEL | — | — | Override the Claude model used by the verification engines. Defaults to claude-sonnet-4-6. |
| GLASSBOX_MAX_TOKENS | — | — | Per-engine-call max-tokens cap. Defaults to 2048; raise for verifying long-form content. |
| GLASSBOX_ECS_MODE | — | — | ECS aggregation mode: arithmetic (weighted mean, default) or geometric (stricter — any zero dimension collapses the total). |
Freshness
Maintained — last maintenance signal 35d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-09-04 · 35d ago · GitHub
Latest release
2026-08-11 · 59d ago · GitHub · integrations-v0.1.0
Package published
no data · npm/PyPI
Registry entry updated
2026-05-25 · 5mo ago · official registry · v1.0.3
FAQ
›How do I install the Glassbox Framework MCP server in Claude Code?
Run: claude mcp add glassbox-framework -e ANTHROPIC_API_KEY='<anthropic-api-key>' -- npx -y @glassbox-framework/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Glassbox Framework require an API key?
Yes. It expects ANTHROPIC_API_KEY, of which 1 is a secret.
›Can I use Glassbox Framework as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Glassbox Framework in the official MCP registry?
Yes, as io.github.TheBarmaEffect/glassbox-framework.