Standalone Substack CLI + 26-tool MCP server. Your IDE drafts the replies. Zero AI API keys.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add substack-ops --env SUBSTACK_SESSION_TOKEN='<SUBSTACK_SESSION_TOKEN>' -- uvx substack-ops~/.codex/config.toml
[mcp_servers.substack-ops]
command = "uvx"
args = ["substack-ops"]
env = { SUBSTACK_SESSION_TOKEN = "<SUBSTACK_SESSION_TOKEN>" }
# codex mcp add substack-ops --env SUBSTACK_SESSION_TOKEN='<SUBSTACK_SESSION_TOKEN>' -- uvx substack-ops~/.cursor/mcp.json
{
"mcpServers": {
"substack-ops": {
"command": "uvx",
"args": [
"substack-ops"
],
"env": {
"SUBSTACK_SESSION_TOKEN": "<SUBSTACK_SESSION_TOKEN>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"substack-ops": {
"type": "stdio",
"command": "uvx",
"args": [
"substack-ops"
],
"env": {
"SUBSTACK_SESSION_TOKEN": "<SUBSTACK_SESSION_TOKEN>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"substack-ops": {
"command": "uvx",
"args": [
"substack-ops"
],
"env": {
"SUBSTACK_SESSION_TOKEN": "<SUBSTACK_SESSION_TOKEN>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"substack-ops": {
"command": "uvx",
"args": [
"substack-ops"
],
"env": {
"SUBSTACK_SESSION_TOKEN": "<SUBSTACK_SESSION_TOKEN>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"substack-ops": {
"command": "uvx",
"args": [
"substack-ops"
],
"env": {
"SUBSTACK_SESSION_TOKEN": "<SUBSTACK_SESSION_TOKEN>"
}
}
}
}Environment variables
SUBSTACK_SESSION_TOKEN
Replace the placeholders with your own credentials and keep them out of version control.