How to integrate Greptile MCP with Hermes

Connect Hermes to Greptile MCP. Search repo for security vulnerabilities across branches, summarize recent pull request comments and suggestions, and more using natural language, with authentication handled for you.

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Greptile MCP is a developer platform that indexes codebases, pull requests, and engineering knowledge. It helps teams find code quickly, review changes, and maintain reusable project context.

21 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 Greptile 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.

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What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,500+ 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 Greptile 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 Greptile

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

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

5. Done!

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

The Greptile MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Greptile account. It provides structured and secure access to your connected codebases, pull requests, code reviews, custom context, and engineering knowledge bases, so your agent can search technical knowledge, inspect code changes, trigger reviews, manage review rules, and analyze findings on your behalf.

  • Repository knowledge discovery: Have your agent discover connected repositories, browse their knowledge base documents, and search for specific symbols, endpoints, or engineering conventions.
  • Pull request investigation: Let the agent list and inspect pull requests or merge requests, including their metadata, statistics, comments, recent reviews, and cited summaries.
  • Code review management: Direct your agent to trigger a new code review for an existing pull request or merge request, then retrieve and track review runs.
  • Review context management: Instruct your agent to create, list, read, and search persistent review rules or learned patterns for your organization.
  • Engineering review analytics: Have your agent analyze review activity and search findings by repository, team, author, severity, security relevance, status, text, or date.

Way Forward

With Greptile 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 Greptile MCP action and event your agent gets out of the box.

Create custom context

Create a persistent review rule or pattern in the selected organization.

Get analytics overview

Get review analytics for repositories visible to the caller, optionally intersected by exact team, repository, and author filters.

Get code review

Get one code-review run by its stable id.

Get custom context

Get one saved review rule or pattern and up to 10 linked review-comment references.

Get knowledge base document

Read one current knowledge-base markdown document after listing its path.

Get me

Identify the caller and discover the organizations available to other tools.

Get merge request

Get one pull request or merge request with metadata, statistics, comments, up to 10 recent review records, and summary citations for the latest completed review.

List analytics filter options

List exact team names, repository names, or author logins available to the caller for analytics filters.

List analytics findings

List review findings visible to the caller, newest first, with optional exact scope, severity, security, stored-addressed-status, text, and date filters.

List code reviews

List code-review runs visible to the caller, newest first, optionally filtered by repository, PR number, or status.

List custom context

List saved review rules and learned patterns visible to the caller, newest first.

List knowledge base documents

List paths in one repository's current published knowledge base to map its documented subsystems before reading.

List knowledge bases

Discover repositories with reachable Greptile knowledge-base data; start here before asking how an unfamiliar repository works.

List merge request comments

List all matching comments for one pull request or merge request, newest first.

List merge requests

List merge requests and pull requests visible to the caller, newest first.

List pull requests

Alias of list_merge_requests with the same filters and result contract.

List repositories

List repositories visible to the caller in the selected organization, sorted by name.

Search custom context

Search visible custom-context bodies by case-insensitive substring, newest matches first.

Search greptile comments

Search Greptile-generated review comments by case-insensitive body substring across PR and CLI/headless reviews, newest first.

Search knowledge base

Search one repository's current knowledge base for a case-insensitive substring when you know the term, symbol, endpoint, or convention to investigate.

Trigger code review

Request a new asynchronous Greptile review for an existing GitHub pull request or GitLab merge request.

FAQ

Frequently asked questions

With a standalone Greptile MCP server, the agents and LLMs can only access a fixed set of Greptile tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Greptile 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 Greptile tools.

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

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