How to integrate Stack Ai MCP with Hermes

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Introduction

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.

This guide explains the easiest and most robust way to connect your Stack Ai account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

Also integrate Stack Ai with

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,000+ applications directly into their agent harness — including Hermes. It can:

  • Search and load tools from relevant toolkits on-demand, reducing context usage.
  • Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
  • Manage app authentication end-to-end with zero manual overhead.

Integrating Stack Ai with Hermes

Using Composio Connect CLI

1. Install the Composio CLI

Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

bash
curl -fsSL https://composio.dev/install | bash
Hermes authenticating with Composio

2. Authenticate

Once the CLI is installed, ask Hermes to authenticate with Composio.

3. Connect to Stack Ai

Ask your agent to connect to Stack Ai, or simply request any Stack Ai-related task. Hermes will prompt you to authenticate and authorize access.

4. Done. You're all set with a new Stack Ai connection.

Using Composio Connect MCP

1. Get your MCP URL and API Key

Go to dashboard.composio.dev and copy your Connect MCP URL and API key.

Copy MCP URL and API key from Composio dashboard

2. Open the Hermes config file

bash
nano ~/.hermes/config.yaml

3. Add the Composio Connect MCP server

bash
mcp_servers:
  composio:
    url: "https://connect.composio.dev/mcp"
    headers:
      x-consumer-api-key: "YOUR_COMPOSIO_API_KEY"
    connect_timeout: 60
    timeout: 180

Save with Ctrl + O, Enter, then exit with Ctrl + X.

4. Restart your Hermes agent

Once restarted, ask your agent to connect to Stack Ai or request any Stack Ai-related task. It will prompt you to authenticate and authorize access.

5. Done!

What is the Stack Ai MCP server, and what's possible with it?

The Stack Ai MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Stack Ai account. It provides structured and secure access so your agent can perform Stack Ai operations on your behalf.

Supported Tools & Triggers

Tools
Check HealthTool to check the health status of the Stack AI API.
Get Action InputsTool to retrieve the input schema for a specific provider action in Stack AI.
Get Action Output SchemaTool to retrieve the output parameters schema for a Stack.
Get Connector Type SchemaTool to retrieve the configuration schema for a specific connector type in Stack AI.
Get License StatusTool to retrieve the current Stack AI license status.
Get Provider DetailsTool to retrieve details of a specific Stack AI tool provider.
Get Provider Action DetailsTool to get details of a specific action for a provider.
Get Provider IconTool to fetch a provider icon image by provider identifier.
Get Provider Trigger DetailsTool to retrieve detailed information about a specific trigger for a provider.
Get RootTool to retrieve information from the Stack AI API root endpoint.
Get Trigger Details From ProviderTool to retrieve detailed information about a specific trigger from a provider.
Get Trigger InputsTool to retrieve the input parameters for a trigger as a JSON schema.
Get Trigger OutputsTool to retrieve the output schema for a specific trigger in Stack AI.
List Connector TypesTool to list all available connector types from Stack AI.
List Stack AI IntegrationsTool to list all available Stack AI integrations.
List Permission GroupsTool to list all permission groups with their associated permissions.
List PermissionsTool to list all available permissions in Stack AI.
List Provider TriggersTool to get all available triggers for a specific provider.
List Stack AI ActionsTool to list all available Stack AI tool actions.
List Stack AI ProvidersTool to list all Stack AI tool providers (integrations).
List Stack AI Built-in ToolsTool to list all Stack AI built-in tools.
List Stack AI TriggersTool to list all available Stack AI tool triggers.

Way Forward

With Stack Ai connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.

From here, you can extend Hermes further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
  • Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.

If you run into trouble or want to share what you've built, join the community or check out the Docs for deeper configuration options.

How to build Stack Ai MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Stack Ai MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Stack Ai MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Stack Ai MCP with Claude Code

Codex logo

Codex

Use Stack Ai MCP with Codex

OpenClaw logo

OpenClaw

Use Stack Ai MCP with OpenClaw

CLI logo

CLI

Use Stack Ai MCP with CLI

Google ADK logo

Google ADK

Use Stack Ai MCP with Google ADK

LangChain logo

LangChain

Use Stack Ai MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Stack Ai MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Stack Ai MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Stack Ai MCP with LlamaIndex

CrewAI logo

CrewAI

Use Stack Ai MCP with CrewAI

FAQ

What are the differences in Tool Router MCP and Stack Ai MCP?

With a standalone Stack Ai MCP server, the agents and LLMs can only access a fixed set of Stack Ai tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Stack Ai and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Hermes?

Yes, you can. Hermes 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 Stack Ai tools.

Can I manage the permissions and scopes for Stack Ai while using Tool Router?

Yes, absolutely. You can configure which Stack Ai 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.

How safe is my data with Composio Tool Router?

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 Stack Ai data and credentials are handled as safely as possible.

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