Guides · Build and connect agents
How do I add the Strale MCP server to Claude Code?
Add Strale to Claude Code with one command. Free tools work without an API key, within 300 free calls a month per IP address across all free tools.
- MCP
- Shell, JSON
Steps
- Run the
claude mcp addcommand. - Or create
.mcp.jsonin your project root. - Add
STRALE_API_KEYfor paid tools (optional). - Ask Claude Code to use a Strale tool.
The solution
claude mcp add strale -- npx -y strale-mcp {
"mcpServers": {
"strale": {
"command": "npx",
"args": ["-y", "strale-mcp"],
"env": {
"STRALE_API_KEY": "${STRALE_API_KEY}"
}
}
}
} Then ask Claude Code:
Prompt
Validate this IBAN: DE89370400440532013000 How it works
The server gives Claude Code a few meta-tools. strale_search finds a tool by keyword, strale_execute runs it and strale_balance shows your wallet balance. Ask "what Strale tools can check financial data?" and it lists matches with their prices.
The server runs as a local process, and npx -y strale-mcp fetches the latest version. Leave the key out to use free tools only. The hosted server and every option are in Connect over MCP.
Tools in this guide
| Tool | Price per call |
|---|---|
| IBAN Validation | Free |
| Email Validation | Free |
| DNS Lookup | Free |
| JSON Repair | Free |