Virtual phone numbers for SMS verification, OTP receipt, and number management.
Setup
Choose your client, copy the config, then fill in any required environment variables.
Local
claude mcp add quackr --env QUACKR_API_KEY='<QUACKR_API_KEY>' -- npx -y quackr-mcp~/.codex/config.toml
[mcp_servers.quackr]
command = "npx"
args = ["-y", "quackr-mcp"]
env = { QUACKR_API_KEY = "<QUACKR_API_KEY>" }
# codex mcp add quackr --env QUACKR_API_KEY='<QUACKR_API_KEY>' -- npx -y quackr-mcp~/.cursor/mcp.json
{
"mcpServers": {
"quackr": {
"command": "npx",
"args": [
"-y",
"quackr-mcp"
],
"env": {
"QUACKR_API_KEY": "<QUACKR_API_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"quackr": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"quackr-mcp"
],
"env": {
"QUACKR_API_KEY": "<QUACKR_API_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"quackr": {
"command": "npx",
"args": [
"-y",
"quackr-mcp"
],
"env": {
"QUACKR_API_KEY": "<QUACKR_API_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"quackr": {
"command": "npx",
"args": [
"-y",
"quackr-mcp"
],
"env": {
"QUACKR_API_KEY": "<QUACKR_API_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"quackr": {
"command": "npx",
"args": [
"-y",
"quackr-mcp"
],
"env": {
"QUACKR_API_KEY": "<QUACKR_API_KEY>"
}
}
}
}Remote
claude mcp add --transport http quackr https://mcp.quackr.io/ --header 'Authorization: <AUTHORIZATION>'~/.codex/config.toml
[mcp_servers.quackr]
url = "https://mcp.quackr.io/"
http_headers = { Authorization = "<AUTHORIZATION>" }
# codex mcp add quackr --url https://mcp.quackr.io/~/.cursor/mcp.json
{
"mcpServers": {
"quackr": {
"url": "https://mcp.quackr.io/",
"headers": {
"Authorization": "<AUTHORIZATION>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"quackr": {
"type": "http",
"url": "https://mcp.quackr.io/",
"headers": {
"Authorization": "<AUTHORIZATION>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"quackr": {
"httpUrl": "https://mcp.quackr.io/",
"headers": {
"Authorization": "<AUTHORIZATION>"
}
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"quackr": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://mcp.quackr.io/",
"--header",
"Authorization:<AUTHORIZATION>"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"quackr": {
"url": "https://mcp.quackr.io/",
"headers": {
"Authorization": "<AUTHORIZATION>"
}
}
}
}Environment variables
QUACKR_API_KEY
Replace the placeholders with your own credentials and keep them out of version control.