CapabilityWire MCP Server

by jawauntb Your server? Claim it

answering

CapabilityWire is answering right now. Last checked 15 min ago. It exposes 4 tools.

A live, curated feed of new AI agent capabilities across MCP, SDKs, models, and APIs.

Uptime history 21 days of history · worst day 98%

21 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

294 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

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

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add capabilitywire --transport http https://api-production-22727.up.railway.app/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "capabilitywire": {
      "url": "https://api-production-22727.up.railway.app/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.capabilitywire]
url = "https://api-production-22727.up.railway.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "capabilitywire": {
      "url": "https://api-production-22727.up.railway.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "capabilitywire": {
      "url": "https://api-production-22727.up.railway.app/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.

capabilities

search_capabilities

Full-text-ish search over capability titles / summaries / tags. Returns up to `limit` matches.

capability

get_capability

Fetch a single capability event by id or slug.

mark

mark_seen

Mark a capability event as delivered to the calling subscriber. Records a delivery for analytics.

recent

list_recent_capabilities

List the most recent CapabilityWire events (SDKs, MCP servers, models, tools, libraries). Optionally filter by category or a since timestamp.

Endpoints

URL	Transport	State	Latency	Checked
https://api-production-22727.up.railway.app/mcp	streamable-http	answering	378 ms	15 min ago

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CapabilityWire — questions

Answers built from our own checks of this server.

What can CapabilityWire do?

It exposes 4 tools, read directly from the server on our last check. Among them: get_capability, list_recent_capabilities, mark_seen, search_capabilities. 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 CapabilityWire 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 294 ms. The bar chart above shows every period we have measured.

How do I connect CapabilityWire?

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 CapabilityWire need an API key?

No. CapabilityWire 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 CapabilityWire?

It answers our handshake in 294 ms on average, which is faster than 51% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.