Send real paper letters in the Czech Republic, ordinary or registered, via Česká pošta.
Setup
Choose your client, copy the config, then fill in any required environment variables.
Local
claude mcp add postbot --env POSTBOT_CP_USER='<POSTBOT_CP_USER>' --env POSTBOT_CP_PASSWD='<POSTBOT_CP_PASSWD>' --env POSTBOT_TEST='<POSTBOT_TEST>' -- npx -y @postbotcz/mcp~/.codex/config.toml
[mcp_servers.postbot]
command = "npx"
args = ["-y", "@postbotcz/mcp"]
env = { POSTBOT_CP_USER = "<POSTBOT_CP_USER>", POSTBOT_CP_PASSWD = "<POSTBOT_CP_PASSWD>", POSTBOT_TEST = "<POSTBOT_TEST>" }
# codex mcp add postbot --env POSTBOT_CP_USER='<POSTBOT_CP_USER>' --env POSTBOT_CP_PASSWD='<POSTBOT_CP_PASSWD>' --env POSTBOT_TEST='<POSTBOT_TEST>' -- npx -y @postbotcz/mcp~/.cursor/mcp.json
{
"mcpServers": {
"postbot": {
"command": "npx",
"args": [
"-y",
"@postbotcz/mcp"
],
"env": {
"POSTBOT_CP_USER": "<POSTBOT_CP_USER>",
"POSTBOT_CP_PASSWD": "<POSTBOT_CP_PASSWD>",
"POSTBOT_TEST": "<POSTBOT_TEST>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"postbot": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@postbotcz/mcp"
],
"env": {
"POSTBOT_CP_USER": "<POSTBOT_CP_USER>",
"POSTBOT_CP_PASSWD": "<POSTBOT_CP_PASSWD>",
"POSTBOT_TEST": "<POSTBOT_TEST>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"postbot": {
"command": "npx",
"args": [
"-y",
"@postbotcz/mcp"
],
"env": {
"POSTBOT_CP_USER": "<POSTBOT_CP_USER>",
"POSTBOT_CP_PASSWD": "<POSTBOT_CP_PASSWD>",
"POSTBOT_TEST": "<POSTBOT_TEST>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"postbot": {
"command": "npx",
"args": [
"-y",
"@postbotcz/mcp"
],
"env": {
"POSTBOT_CP_USER": "<POSTBOT_CP_USER>",
"POSTBOT_CP_PASSWD": "<POSTBOT_CP_PASSWD>",
"POSTBOT_TEST": "<POSTBOT_TEST>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"postbot": {
"command": "npx",
"args": [
"-y",
"@postbotcz/mcp"
],
"env": {
"POSTBOT_CP_USER": "<POSTBOT_CP_USER>",
"POSTBOT_CP_PASSWD": "<POSTBOT_CP_PASSWD>",
"POSTBOT_TEST": "<POSTBOT_TEST>"
}
}
}
}Remote
claude mcp add --transport http postbot https://postbot.cz/mcp~/.codex/config.toml
[mcp_servers.postbot]
url = "https://postbot.cz/mcp"
# codex mcp add postbot --url https://postbot.cz/mcp~/.cursor/mcp.json
{
"mcpServers": {
"postbot": {
"url": "https://postbot.cz/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"postbot": {
"type": "http",
"url": "https://postbot.cz/mcp"
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"postbot": {
"httpUrl": "https://postbot.cz/mcp"
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"postbot": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://postbot.cz/mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"postbot": {
"url": "https://postbot.cz/mcp"
}
}
}Environment variables
POSTBOT_CP_USERPOSTBOT_CP_PASSWDPOSTBOT_TEST
Replace the placeholders with your own credentials and keep them out of version control.