MCP V1 runs on your own machine — the client starts it, so there is no endpoint to ping. 40 installs a week from npm.
Sub-cent factual claim verification against live data sources.
Today is the operative word: we check MCP V1 every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mcp-v1 -- npx -y @636865636b73756d/mcp-v1
{
"mcpServers": {
"mcp-v1": {
"args": [
"-y",
"@636865636b73756d/mcp-v1"
],
"command": "npx"
}
}
}
[mcp_servers.mcp-v1]
command = "npx"
args = ["-y", "@636865636b73756d/mcp-v1"]
{
"mcpServers": {
"mcp-v1": {
"args": [
"-y",
"@636865636b73756d/mcp-v1"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"mcp-v1": {
"args": [
"-y",
"@636865636b73756d/mcp-v1"
],
"command": "npx"
}
}
}
Sub-cent factual claim verification against live data sources.
Fact-check claims against live web sources: verdict, consensus, cited sources, PII redaction.
Real-time fact-checking MCP. Verifies claims against live sources with structured verdicts.
Fact-check claims against independent sources — fast verdict or deep multi-step investigation.
Verify a vuln report's file/line/function claims against a real GitHub repo.
Verify a vuln report's file/line/function claims against a real GitHub repo.
Fact-check any claim with live web sources. Ed25519-signed receipts. Catches hallucinations.
Physics assistant: checked equations, live simulations, claims verified against arXiv papers
Answers built from our own checks of this server.