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Viewcaller MCP Server

answering

Viewcaller is answering right now. Last checked 2 min ago. It exposes 2 tools.

ViewCaller: Find any phone number, have more information about your contacts & much more. Phone.

Uptime history 13 days of history
13 days agonow
100.0%
Uptime 24h
91 of 91 checks
2
Tools
read from the server
295 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Viewcaller 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 2 min ago.

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

Available tools 2

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

api
get_api_v1_getCountryCode
Returns a list of all countries supported by the ViewCaller API, including country name, dialing code, ISO codes, population, area, and GDP information. Billing per call: 1 Credits.
get_api_v1_search
Searches for contact information and identifies the name associated with a given phone number Billing per call: 1 Credits.

Endpoints

URLTransportStateLatencyChecked
https://mcp.jojapi.com/viewcaller streamable-http answering 168 ms 2 min ago

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Viewcaller — questions

Answers built from our own checks of this server.

What can Viewcaller do?
It exposes 2 tools, read directly from the server on our last check. Among them: get_api_v1_getCountryCode, get_api_v1_search. 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 Viewcaller 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 295 ms. The bar chart above shows every period we have measured.
How do I connect Viewcaller?
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 Viewcaller need an API key?
No. Viewcaller completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Viewcaller?
It answers our handshake in 295 ms on average, which is faster than 57% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.