Combines array elements into a single string using a specified delimiter. Access via MCP in Cursor or Windsurf, or call GET /v1/string/join directly. Pass ["apple", "banana", "cherry"] with delimiter "," to get "apple,banana,cherry". Essential for CSV generation, URL construction, and data serialization in AI workflows.
curl "https://tinyfn.io/v1/string/join" \
-H "X-API-Key: YOUR_API_KEY"const response = await fetch('https://tinyfn.io/v1/string/join', {
headers: { 'X-API-Key': 'YOUR_API_KEY' }
});
const data = await response.json();
console.log(data);import requests
response = requests.get('https://tinyfn.io/v1/string/join',
headers={'X-API-Key': 'YOUR_API_KEY'})
data = response.json()
print(data)Connect your AI agent (Claude, Cursor, Windsurf, etc.) to TinyFn's string tools:
{
"mcpServers": {
"tinyfn-string": {
"url": "https://tinyfn.io/mcp/string",
"headers": {
"X-API-Key": "YOUR_API_KEY"
}
}
}
}Send a GET request to /v1/string/join with your array and delimiter parameter. The tool concatenates all elements using your specified separator.
Yes, any string works as a delimiter including empty strings, spaces, newlines, or special characters like | or ;.
Null and undefined values are typically converted to empty strings before joining, but check your specific implementation for exact behavior.
AI agents can join code snippets, import statements, or function parameters into properly formatted strings for file generation or template construction.
Functionally identical in the join operation, but commas create CSV format while pipes work better for data that might contain commas internally.