api.nitrosend.com

# Nitrosend API > Multi-channel email marketing and newsletter automation API. Send email campaigns, build automation flows, manage contacts and segments, track events, and configure Brand Kit identity. ## MCP Server (AI Agents) Nitrosend exposes an MCP (Model Context Protocol) server for AI agents at: https://api.nitrosend.com/mcp ### Connecting by client Auth is OAuth 2.1, auto-discovered by the client. No API key needed — the agent opens a browser for sign-in. **Claude Code:** ```bash claude mcp add --transport http nitrosend https://api.nitrosend.com/mcp ``` **Claude Desktop / Claude.ai / Cowork:** Settings → Connectors → Add Custom Connector → `https://api.nitrosend.com/mcp` **ChatGPT:** Settings → Apps → Advanced settings → enable Developer mode, then Settings → Apps → Create app for a remote MCP server → `https://api.nitrosend.com/mcp` **Cursor**: ```json {"mcpServers": {"nitrosend": {"url": "https://api.nitrosend.com/mcp"}}} ``` **VS Code (Copilot)** — add to `.vscode/mcp.json`: ```json {"servers": {"nitrosend": {"type": "http", "url": "https://api.nitrosend.com/mcp"}}} ``` **Windsurf** — add to `~/.codeium/windsurf/mcp_config.json`: ```json {"mcpServers": {"nitrosend": {"serverUrl": "https://api.nitrosend.com/mcp"}}} ``` **Codex CLI:** ```bash codex mcp add nitrosend --url https://api.nitrosend.com/mcp codex mcp login nitrosend ``` **Gemini CLI** — add to `~/.gemini/settings.json`: ```json {"mcpServers": {"nitrosend": {"httpUrl": "https://api.nitrosend.com/mcp"}}} ``` **Zed**: ```json {"context_servers": {"nitrosend": {"url": "https://api.nitrosend.com/mcp"}}} ``` **Any other HTTP-capable MCP client:** Point at `https://api.nitrosend.com/mcp` using HTTP/Streamable HTTP transport. **stdio-only clients** (API key required): ```json {"command": "npx", "args": ["-y", "@nitrosend/mcp"], "env": {"NITROSEND_API_KEY": "nskey_live_..."}} ``` Example workflows: https://docs.nitrosend.com/guides/mcp-examples ### OAuth 2

openapi: 3.1.0 info: title: Nitrosend API version: 1.1.2 description: | Multi-channel marketing automation API. Send email campaigns, build automation flows, manage contacts and segments, track events, and configure your Brand Kit — all via a single REST API. ## Authentication All `/v1/my/*` endpoints require authentication via **Bearer token**. Three token types are accepted: 1. **API Key** — `Authorization: Bearer nskey_live_...` 2. **JWT** — `Aut