How to integrate Bolna 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 Bolna 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 Bolna 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 Bolna 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 Bolna

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

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

5. Done!

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

The Bolna MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Bolna account. It provides structured and secure access to your Bolna voice agent platform, so your agent can perform actions like listing agents, making phone calls, managing executions, and retrieving analytics on your behalf.

  • Automated voice call initiation: Let your AI agent instantly initiate phone calls using your Bolna conversational agents, streamlining outreach and support tasks.
  • Agent and phone number management: Effortlessly fetch and list all your Bolna agents or phone numbers, making it easy to review and organize your voice assets.
  • Real-time execution monitoring: Retrieve detailed information about specific call executions or monitor all executions for a given agent to track performance and outcomes.
  • Batch processing for agents: List and manage batch operations associated with your agents, supporting bulk workflows and campaign management.
  • Agent cleanup and maintenance: Quickly delete agents or batches that are no longer needed, keeping your Bolna environment organized and up to date.

Supported Tools & Triggers

Tools
Add Provider to BolnaTool to add a new telephony or voice service provider to your Bolna account.
Copy Bolna AgentTool to create a duplicate copy of an existing Bolna voice AI agent.
Create Bolna Voice AI Agent (v2)Tool to create a new Bolna Voice AI agent using the v2 API.
Create Bolna BatchTool to create a new outbound calling batch by uploading a CSV of contacts to obtain a batch_id.
Create Bolna KnowledgebaseTool to create a new knowledgebase for Voice AI agents to reference during conversations.
Create Template AgentTool to create a new Bolna Voice AI agent from a template.
Delete agent by idPermanently delete a Voice AI agent and all associated data including batches, executions, and configurations
Delete batch by idPermanently delete a batch campaign by its ID, removing it from the system.
Delete KnowledgebaseTool to permanently delete a knowledgebase from your Bolna account.
Fetch all batches by agent idRetrieve all batches associated with a specific Bolna Voice AI agent.
Get all agentsRetrieve all agents configured in your Bolna account Returns a comprehensive list of all voice agents with their configurations including: - Agent metadata (ID, name, type, status) - Task configurations (conversation settings, toolchains) - AI model settings (LLM, transcriber, synthesizer) - Webhook and phone number assignments - System prompts and guardrails This is useful for listing available agents, checking agent configurations, or finding specific agents by their properties.
Get execution by idRetrieve detailed information about a specific phone call execution by its ID.
Get knowledgebase by IDTool to retrieve details of a specific knowledgebase by its ID.
Get User InformationTool to retrieve information about the authenticated user.
Import Bolna AgentTool to import an existing Bolna voice AI agent by its ID.
List agents (paginated)Tool to retrieve a paginated list of all agents in your Bolna account.
List KnowledgebasesTool to retrieve all knowledgebases from your Bolna account.
List all phone numbersTool to list all phone numbers associated with your Bolna account.
List all providersRetrieve all providers associated with your Bolna account Returns a list of all configured providers including: - Provider IDs (unique identifiers) - Provider names (e.
List available voicesTool to list all available voices that can be utilized for Voice AI agents.
Make an outbound phone call from agentInitiate an outbound phone call using a configured Bolna Voice AI agent.
Remove Provider from Bolna AccountTool to remove a provider from your Bolna account by its key name.
Retrieve agent by idRetrieve complete configuration and details for a specific Bolna voice AI agent by its ID.
Retrieve agent execution detailsRetrieve detailed information about a specific execution (call/conversation) by an agent, including transcript, costs, duration, status, and telephony data
Retrieve agent execution statusRetrieve all executions for a specific agent with pagination and filtering support.
Retrieve Batch Details by IDRetrieve comprehensive details about a specific Bolna batch by its ID.
Retrieve batch execution listRetrieve all executions from a specific batch with pagination support.
Schedule Batch by IDSchedule a batch to execute at a specific time.
Search available phone numbersTool to search for available phone numbers that can be purchased for Bolna Voice agents.
Setup inbound call for agentAdd agent for inbound calls
Stop Agent CallsTool to stop all queued or scheduled calls for a specific Voice AI agent.
Stop batch by idStop a running batch by its ID.
Update Bolna Voice AI Agent (v2)Tool to update all settings and configuration of an existing Bolna Voice AI agent using the v2 API.

Way Forward

With Bolna 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.

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FAQ

What are the differences in Tool Router MCP and Bolna MCP?

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

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

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

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