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Circuit MCP Server

answering

Circuit is answering right now. Last checked 1 min ago. It exposes 4 tools.

Find and try paid AI agent skills for security, on-chain data, code, markets, research and news.

Uptime history 6 days of history · worst day 0%
6 days agonow
5.4%
Uptime 24h
5 of 92 checks
4
Tools
read from the server
286 ms
Response time
average over 24h
open, no key
Access
streamable-http

Circuit does not always answer

Over the last week it answered 10.6% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

run in your terminal
claude mcp add marketplace --transport http https://www.circuit.family/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "marketplace": {
      "url": "https://www.circuit.family/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.marketplace]
url = "https://www.circuit.family/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "marketplace": {
      "url": "https://www.circuit.family/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "marketplace": {
      "url": "https://www.circuit.family/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

recipes
list_recipes
Workflows that chain several skills (vet a token, install a dependency safely, screen untrusted input and more), with the cost of one run. Free.
skill
get_skill
Full details for one skill: input and output schema, a real example, price, 30-day usage, uptime, rating and how to pay for it. Free.
skills
find_skills
Search Circuit's paid AI agent skills by capability, e.g. 'phishing link', 'token price' or 'summarize a web page'. Returns each skill's id, price in USDG, summary and 30-day usage. Free.
try
try_skill
Run a skill once for free on a small input (text up to 500 characters). 3 free calls per day. Paid calls have no such limits.

Endpoints

URLTransportStateLatencyChecked
https://www.circuit.family/mcp streamable-http answering 245 ms 1 min ago

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Circuit — questions

Answers built from our own checks of this server.

What can Circuit do?
It exposes 4 tools, read directly from the server on our last check. Among them: find_skills, get_skill, list_recipes, try_skill. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Circuit working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 5 of 92 checks got a reply (5.4%), average response time 286 ms. The bar chart above shows every period we have measured.
How do I connect Circuit?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Circuit need an API key?
No. Circuit completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Circuit?
It answers our handshake in 286 ms on average, which is faster than 46% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.