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Tern MCP Server

answering

Tern is answering right now. Last checked 4 min ago. It exposes 3 tools.

Resolve capability gaps: validate native MCPs, search live web, and record unmet demand.

Uptime history 21 days of history
21 days agonow
100.0%
Uptime 24h
91 of 91 checks
3
Tools
read from the server
288 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Tern every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

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 4 min ago.

run in your terminal
claude mcp add resolver --transport http https://mcp.tern0.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "resolver": {
      "url": "https://mcp.tern0.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.resolver]
url = "https://mcp.tern0.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "resolver": {
      "url": "https://mcp.tern0.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "resolver": {
      "url": "https://mcp.tern0.com/mcp"
    }
  }
}

Available tools 3

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

report
report_outcome
Report whether a resolver request actually worked and how much agent friction it required.
resolve
resolve
Resolve a real-world capability request. Search the official MCP Registry, actively validate public candidate MCP tool surfaces, then fall back to live web search when native coverage is weak or absent. Weak Registry matches never suppress capability-gap telemetry.
submit
submit_mandate
Record high-intent demand for a capability an agent wants fulfilled. Supplier contact and spending are not enabled yet.

Endpoints

URLTransportStateLatencyChecked
https://mcp.tern0.com/mcp streamable-http answering 343 ms 4 min ago

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Tern — questions

Answers built from our own checks of this server.

What can Tern do?
It exposes 3 tools, read directly from the server on our last check. Among them: report_outcome, resolve, submit_mandate. 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 Tern working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 288 ms. The bar chart above shows every period we have measured.
How do I connect Tern?
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 Tern need an API key?
No. Tern completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Tern?
It answers our handshake in 288 ms on average, which is faster than 59% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.