How to integrate PromptHub MCP with Hermes

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 PromptHub 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.

PromptHub logoPromptHub
Api Key

PromptHub is a prompt management platform for versioning, retrieving, and executing prompts through an API. It helps teams ship reliable AI features with traceable prompt changes and reusable prompt assets.

4 Tools

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 PromptHub 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 PromptHub 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 PromptHub 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 PromptHub

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

4. Done. You're all set with a new PromptHub 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 PromptHub or request any PromptHub-related task. It will prompt you to authenticate and authorize access.

5. Done!

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

The PromptHub MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your PromptHub account. It provides structured and secure access to your teams, projects, versioned prompts, and model configurations, so your agent can identify your current team, list projects, retrieve the latest committed prompts, and run projects on your behalf.

  • Team identification: Have your agent find the current PromptHub team associated with your connected account.
  • Project discovery: Let the agent list your team's projects and narrow them by group, model, or provider.
  • Latest prompt retrieval: Direct your agent to fetch a project's latest committed prompt and model configuration, including content from a selected branch.
  • Variable resolution: Instruct your agent to retrieve committed prompts with their variables resolved for immediate use.
  • Project execution: Have your agent run a committed project with optional variables and return the generated text along with usage, cost, and timing details.

Way Forward

With PromptHub 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.

TOOLS

Supported Tools

Every PromptHub action and event your agent gets out of the box.

Get Current Team

Return the current PromptHub team ID for the connected account.

Get Project Head

Retrieve a project's latest committed prompt and model configuration, with optional branch and variable resolution.

List Projects

List projects in a PromptHub team, optionally filtered by group, model, or provider.

Run Project

Execute a committed PromptHub project prompt with optional variables and return the generated text, usage, cost, and timing metadata.

FAQ

Frequently asked questions

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

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 PromptHub tools.

Yes, absolutely. You can configure which PromptHub 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 PromptHub data and credentials are handled as safely as possible.

Start with PromptHub.It takes 30 seconds.

Managed auth, hosted MCP servers, and every PromptHub tool your agent needs.Free to start.

Start building