Iana Registries MCP Server
by cyanheadsio.github.cyanheads/iana-registries-mcp-serverv0.2.0
Find IANA ports, MIME types, HTTP codes/fields, URI schemes, PENs, BCP 47 tags, RFCs, any registry.
context tax
queued
security
queued
cold start
queued
freshness
Active7d ago
Install Iana Registries MCP server
Install in Claude Code
claude mcp add iana-registries -- npx -y @cyanheads/iana-registries-mcp-server run start:stdioInstall in Cursor
{
"mcpServers": {
"iana-registries": {
"command": "npx",
"args": [
"-y",
"@cyanheads/iana-registries-mcp-server",
"run",
"start:stdio"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"iana-registries": {
"command": "npx",
"args": [
"-y",
"@cyanheads/iana-registries-mcp-server",
"run",
"start:stdio"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"iana-registries": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@cyanheads/iana-registries-mcp-server",
"run",
"start:stdio"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"iana-registries": {
"command": "npx",
"args": [
"-y",
"@cyanheads/iana-registries-mcp-server",
"run",
"start:stdio"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| MCP_LOG_LEVEL | — | — | Sets the minimum log level for output (e.g., 'debug', 'info', 'warn'). |
| MCP_HTTP_HOST | — | — | The hostname for the HTTP server. |
| MCP_HTTP_PORT | — | — | The port to run the HTTP server on. |
| MCP_HTTP_ENDPOINT_PATH | — | — | The endpoint path for the MCP server. |
| MCP_AUTH_MODE | — | — | Authentication mode to use: 'none', 'jwt', or 'oauth'. |
Remote endpoints
- streamable-http
https://iana-registries.caseyjhand.com/mcp
Freshness
Active — last maintenance signal 7d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-10-02 · 7d ago · GitHub
Latest release
2026-10-02 · 7d ago · GitHub · v0.2.0
Package published
no data · npm/PyPI
Registry entry updated
2026-10-02 · 7d ago · official registry · v0.2.0
FAQ
›How do I install the Iana Registries MCP server in Claude Code?
Run: claude mcp add iana-registries -- npx -y @cyanheads/iana-registries-mcp-server run start:stdio. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Iana Registries require an API key?
No required environment variables are declared in its published metadata.
›Can I use Iana Registries as a remote (hosted) MCP server?
Yes — it offers both a hosted endpoint and a local stdio package.
›Is Iana Registries in the official MCP registry?
Yes, as io.github.cyanheads/iana-registries-mcp-server.