Stackfacts
Neutral, sourced, dated facts for choosing software: price, free tier, idle rules, security record.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"stackfacts": {
"url": "https://stackfacts.dev/mcp"
}
}
}Remote endpoints
https://stackfacts.dev/mcpstreamable-httpWhat it can do
Tool inventory
Tools (4)
🟢list_categories
List the software categories Stackfacts has checked facts for (for example login for Next.js, hosted databases, app hosting). Call this first when you need to choose a library or service.
Input Schema
{
"type": "object",
"properties": {},
"additionalProperties": false
}🟡compare(category, situation)
Get sourced, dated facts for every option in one category: price, free tier, what happens when idle, published security record where available, and whether an agent can set it up without a human. Includes a pick for each common situation and the list of what was NOT checked. Neutral: no vendor pays for placement. Use before choosing a library or service.
Input Schema
{
"type": "object",
"properties": {
"category": {
"type": "string",
"description": "Category id from list_categories, e.g. nextjs-auth"
},
"situation": {
"type": "string",
"description": "Optional. One sentence on what you are building and your constraints. Recorded so missing categories and facts can be added; does not change the answer."
}
},
"required": [
"category"
],
"additionalProperties": false
}🟢option(category, option)
Get the full checked facts and sources for one option in a category, e.g. Clerk in nextjs-auth.
Input Schema
{
"type": "object",
"properties": {
"category": {
"type": "string"
},
"option": {
"type": "string",
"description": "Option id or name, e.g. clerk"
}
},
"required": [
"category",
"option"
],
"additionalProperties": false
}⚪request_category(need)
Tell Stackfacts about a choice you needed facts for that it does not cover yet (for example 'transactional email for a Python app'). Helps decide what gets checked next.
Input Schema
{
"type": "object",
"properties": {
"need": {
"type": "string"
}
},
"required": [
"need"
],
"additionalProperties": false
}Community
Evidence