Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With the Echtpost MCP integration, Codex can list your templates, all without leaving the terminal or the app, whichever you prefer.
- UseBuildFeaturesTRIGGERSStart background agents from events across your connected appsFIREWALLNEWBlocks instructions hidden in tool results before your agent reads themINSTANTNEWAudio, video, search, browser and data tools, with no keys to manageOPTIMIZATIONLower cost per completed task with optimised tools and skills
- DOCS
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How to integrate Echtpost MCP with Codex
Connect Codex to Echtpost MCP. Show me all postcard templates available, list templates for confidential document delivery, and more using natural language, with authentication handled for you.
EchtpostApi Key
Echtpost is a secure digital communication platform for encrypted document and message exchange. It ensures confidential data stays private and protected during transmission.
1 Tools
Introduction
Also integrate Echtpost with
Why use Composio?
Apart from a managed and hosted MCP server, you will get:
- CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Large tool responses: Handle them to minimise context rot.
- Dynamic just-in-time access to 20,000 tools across 1700+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.
How to install Echtpost MCP in Codex
Run the setup command
Run this command in your terminal to add the Composio MCP server to Codex.
It will initiate the authentication in a browser window, authorize Codex to access your Composio account.
(Optional) Authenticate with OAuth
To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.
bash
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
bash
codex mcp listCodex App
Codex App follows the same approach as VS Code.
- Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
- Fill the header and Key fields with
{ "x-consumer-api-key" = "ck_*******" }. - The Key is the Composio API key, that you can find on dashboard.composio.dev
- Click on Authenticate and authorize Codex to your Composio account and you're all set.
- Restart and verify if it's there in
.codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }Try it
Ask Codex for a Echtpost task. The first time, Composio asks you to connect your Echtpost account.
For example, ask it to:
- "Show me all postcard templates available"
- "List templates for confidential document delivery"
- "Get preview links for secure message templates"
What is the Echtpost MCP server, and what's possible with it?
The Echtpost MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Echtpost account. It provides structured and secure access to your Echtpost templates, so your agent can perform actions like listing available postcard templates, retrieving template details, and preparing for secure document creation on your behalf.
- Comprehensive template retrieval: Instantly fetch all available postcard and document templates in your Echtpost account for quick reference and selection.
- Detailed template information: Allow your agent to access template names, descriptions, preview links, types, and creation timestamps to help you make informed decisions before sending confidential documents.
- Template ID lookup for card creation: Let your agent efficiently obtain the necessary template IDs required for creating and dispatching secure postcards or messages.
- Preview and validation of design assets: Preview templates visually and validate their suitability—ensuring every document meets your standards before sending.
Conclusion
You've successfully integrated Echtpost with Codex using Composio's MCP server. Now you can interact with Echtpost directly from your terminal, VS Code, or the Codex App using natural language commands.
Key benefits of this setup:
- Seamless integration across CLI, VS Code, and standalone app
- Natural language commands for Echtpost operations
- Managed authentication through Composio
- Access to 20,000+ tools across 1700+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various Echtpost operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
TOOLS
Supported Tools
Every Echtpost action and event your agent gets out of the box.
FRAMEWORKS
How to build Echtpost MCP Agent with another framework
Claude Code
Use Echtpost MCP with Claude Code
Claude Cowork
Use Echtpost MCP with Claude Cowork
OpenAI Agents SDK
Use Echtpost MCP with OpenAI Agents SDK
Claude Agent SDK
Use Echtpost MCP with Claude Agent SDK
Grok Bot
Use Echtpost MCP with Grok Bot
OpenClaw
Use Echtpost MCP with OpenClaw
Hermes
Use Echtpost MCP with Hermes
Atomic Agent
Use Echtpost MCP with Atomic Agent
Google ADK
Use Echtpost MCP with Google ADK
LangChain
Use Echtpost MCP with LangChain
Vercel AI SDK
Use Echtpost MCP with Vercel AI SDK
Mastra AI
Use Echtpost MCP with Mastra AI
LlamaIndex
Use Echtpost MCP with LlamaIndex
CrewAI
Use Echtpost MCP with CrewAI
Pydantic AI
Use Echtpost MCP with Pydantic AI
AutoGen
Use Echtpost MCP with AutoGen
MORE TOOLKITS
Explore Other Toolkits
Gmail
Oauth2
Gmail is Google's email service with powerful spam protection, search, and G Suite integration. It keeps your inbox organized and makes communication fast and reliable.
Gong
BasicOauth2
Gong is a platform for video meetings, call recording, and team collaboration. It helps teams capture conversations, analyze calls, and turn insights into action.
2chat
Api Key
2chat is an API platform for WhatsApp and multichannel text messaging. It streamlines chat automation, group management, and real-time messaging for developers.
Agent mail
Api Key
Agent mail provides AI agents with dedicated email inboxes for sending, receiving, and managing emails. It empowers agents to communicate autonomously with people, services, and other agents—no human intervention needed.
FAQ
Frequently asked questions
With a standalone Echtpost MCP server, the agents and LLMs can only access a fixed set of Echtpost tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Echtpost and many other apps based on the task at hand, all through a single MCP endpoint.
Yes, you can. Codex fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Echtpost tools.
Yes, absolutely. You can configure which Echtpost scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.
All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Echtpost data and credentials are handled as safely as possible.
Start with Echtpost.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Echtpost tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building