MCP Server
MCP
Spiderbrain
By Deterministic context layer for your codebase: change impact, blast radius, answers with receipts.
Install
npx -y [email protected]Configuration Example
{
"remotes": [
{
"type": "streamable-http",
"url": "https://mcp.spiderbrain.ai/mcp",
"headers": [
{
"description": "Optional. This server implements the MCP OAuth flow (dynamic client registration and PKCE), so a client that supports it can connect with no token: leave this blank. For headless or CLI use, set 'Bearer sb_live_...' with an API key from your Spiderbrain dashboard. Either way the hosted brain requires an existing Spiderbrain account with an uploaded brain.",
"isSecret": true,
"placeholder": "Bearer sb_live_...",
"name": "Authorization"
}
]
}
],
"packages": [
{
"registryType": "npm",
"registryBaseUrl": "https://registry.npmjs.org",
"identifier": "spiderbrain",
"version": "0.2.3",
"runtimeHint": "npx",
"transport": {
"type": "stdio"
},
"packageArguments": [
{
"description": "Subcommand that starts the stdio MCP server. Without it the binary prints help to stdout and exits.",
"isRequired": true,
"value": "mcp",
"type": "positional"
}
],
"environmentVariables": [
{
"description": "Absolute path to the repository to serve, which must already contain a committed .spiderbrain/ folder. Set this: an MCP client's working directory is usually not your repository, and without it the server serves the working directory and reports that no understanding layer was found. Equivalent to passing --root.",
"isRequired": true,
"format": "filepath",
"name": "SPIDERBRAIN_ROOT"
},
{
"description": "Optional. Enables the cloud why-layer used by the sb_ask tool. The structural tools work offline without it.",
"isSecret": true,
"name": "SPIDERBRAIN_API_KEY"
},
{
"description": "Optional. Base URL of the public brain registry this server consults on the first tool call when the repository has no committed .spiderbrain/ folder. Defaults to https://spiderbrain.ai/registry.",
"name": "SPIDERBRAIN_REGISTRY"
}
]
}
]
}
mcp
model-context-protocol
streamable-http
npm
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