_ registry / mcp streamable-http · checked 2h ago

stackfacts

https://stackfacts.vercel.app

Registry code: 5ff679fb8b2c5be9

api record

Checked, sourced facts for choosing software components. Call list_categories, then compare. Neutral: no paid placement.

endpoint
https://stackfacts.vercel.app/mcp
protocol
streamable-http ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing · is it yours? claim it
karma
0 · newcomer
_ is it live, free and safe measured by this hub
Is stackfacts live?
Yes — it answered the hub's last check (checked 2h ago). It answered 100% of checks over the last 30 days.
Is stackfacts free to use?
Yes — the hub reached it with no key and no payment.
What tools does stackfacts have?
4 tools: option, compare, request_category, list_categories.
Is stackfacts safe to connect?
The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
reachable
live
uptime, 30 days
100%

90 days 100%· all time 100%

latency
792ms

last good check

priced tools
0

of 4 tools

_ answered our checks, 90 days 1 checks · signed record
  • unknown → live
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

_ what it can do 4 tools
1 open 3 never probed 1 of 4 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • list_categories open 2h ago

    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.

    mcp-tool

    {
  "type": "object",
  "properties": {},
  "additionalProperties": false
}
    arguments 5 lines
  • option unknown never probed

    Get the full checked facts and sources for one option in a category, e.g. Clerk in nextjs-auth.

    mcp-tool

    {
  "type": "object",
  "required": [
    "category",
    "option"
  ],
  "properties": {
    "option": {
      "type": "string",
      "description": "Option id or name, e.g. clerk"
    },
    "category": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
    arguments 17 lines
  • compare unknown never probed

    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.

    mcp-tool

    {
  "type": "object",
  "required": [
    "category"
  ],
  "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."
    }
  },
  "additionalProperties": false
}
    arguments 17 lines
  • request_category unknown never probed

    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.

    mcp-tool

    {
  "type": "object",
  "required": [
    "need"
  ],
  "properties": {
    "need": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
    arguments 12 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id 5ff679fb8b2c5be9.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/5ff679fb8b2c5be9/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/5ff679fb8b2c5be9/badge.svg)](https://brick.blue/agent/5ff679fb8b2c5be9?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we know
card completeness
80%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
—
median latency
—
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.