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Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add postals --env POSTALS_API_KEY='<POSTALS_API_KEY>' --env CLOUDFLARE_API_TOKEN='<CLOUDFLARE_API_TOKEN>' -- npx -y postals-mcp~/.codex/config.toml
[mcp_servers.postals]
command = "npx"
args = ["-y", "postals-mcp"]
env = { POSTALS_API_KEY = "<POSTALS_API_KEY>", CLOUDFLARE_API_TOKEN = "<CLOUDFLARE_API_TOKEN>" }
# codex mcp add postals --env POSTALS_API_KEY='<POSTALS_API_KEY>' --env CLOUDFLARE_API_TOKEN='<CLOUDFLARE_API_TOKEN>' -- npx -y postals-mcp~/.cursor/mcp.json
{
"mcpServers": {
"postals": {
"command": "npx",
"args": [
"-y",
"postals-mcp"
],
"env": {
"POSTALS_API_KEY": "<POSTALS_API_KEY>",
"CLOUDFLARE_API_TOKEN": "<CLOUDFLARE_API_TOKEN>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"postals": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"postals-mcp"
],
"env": {
"POSTALS_API_KEY": "<POSTALS_API_KEY>",
"CLOUDFLARE_API_TOKEN": "<CLOUDFLARE_API_TOKEN>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"postals": {
"command": "npx",
"args": [
"-y",
"postals-mcp"
],
"env": {
"POSTALS_API_KEY": "<POSTALS_API_KEY>",
"CLOUDFLARE_API_TOKEN": "<CLOUDFLARE_API_TOKEN>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"postals": {
"command": "npx",
"args": [
"-y",
"postals-mcp"
],
"env": {
"POSTALS_API_KEY": "<POSTALS_API_KEY>",
"CLOUDFLARE_API_TOKEN": "<CLOUDFLARE_API_TOKEN>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"postals": {
"command": "npx",
"args": [
"-y",
"postals-mcp"
],
"env": {
"POSTALS_API_KEY": "<POSTALS_API_KEY>",
"CLOUDFLARE_API_TOKEN": "<CLOUDFLARE_API_TOKEN>"
}
}
}
}Environment variables
POSTALS_API_KEYCLOUDFLARE_API_TOKEN
Replace the placeholders with your own credentials and keep them out of version control.