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How to integrate Voiceflow MCP with Hermes

Connect Hermes to Voiceflow MCP. Start a voiceflow test run now, deploy latest voiceflow version to staging, and more using natural language, with authentication handled for you.

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Voiceflow is a platform for building, deploying, testing, and analyzing conversational AI agents. Use it to design voice and chat experiences with visual flows and real-time analytics.

20 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 Voiceflow 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 Voiceflow with

ChatGPTClaude CoworkAtomic Agent

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 Voiceflow 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 Voiceflow

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

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

5. Done!

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

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

Way Forward

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

Create Variable

Create one user-defined variable in a Voiceflow project environment and return its assigned ID and configuration.

Delete Variable

Permanently delete one user-defined variable by ID.

Export Environment

Return a complete JSON snapshot of one Voiceflow environment, including agent, workflows, tools, functions, variables, and knowledge-base records.

Get Agent Configuration

Return one project environment's agent configuration; optionally include its large global prompt and instructions.

Get Conversation State

Read a user's Voiceflow conversation variables, storage, and execution stack for a draft or published environment.

Get Transcript

Return one transcript with its full conversation logs, properties, evaluations, and recording URL.

Import Knowledge Document from URL

Crawl one public web URL into a Voiceflow knowledge base and return the created document and ingestion status.

List Agent Components

List playbooks, API tools, functions, project-level evaluations, MCP servers or tools, attached tools, or tests for a Voiceflow project and, where applicable, an environment.

List Environments

Return a project's environments, aliases, release history, and live traffic percentages.

List Knowledge Documents

Return all knowledge-base documents in one project environment with their IDs, sources, ingestion status, and chunking settings.

List Projects

Return every Voiceflow project in one workspace, including project IDs used by agent, runtime, and authoring tools.

List Variables

Return system and user-defined variables in one project environment with IDs, defaults, descriptions, and ownership flags.

List Workspaces

Return every Voiceflow workspace accessible to the connected account, including IDs needed to list projects.

Publish Environment

Publish a Voiceflow environment as a named release.

Query Knowledge Base

Retrieve relevant document chunks and optionally synthesize an answer from a project's draft or published Voiceflow knowledge base.

Query Project Analytics

Return one Voiceflow project-level analytics metric as a time series for a requested date range and interval.

Search Transcripts

Search a project's conversation transcripts by time, environment, version, session, and transcript-property filters, returning one bounded page.

Send Conversation Message

Send one text turn to a Voiceflow agent and return its typed response traces; this invokes the agent and may consume model usage.

Update Conversation Variables

Merge named variable values into one user's existing conversation state without replacing storage or the execution stack.

Update Variable

Update selected editable fields of one user-defined variable; omitted fields remain unchanged.

FRAMEWORKS

How to build Voiceflow MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Voiceflow MCP with ChatGPT

Claude Cowork logo

Claude Cowork

Use Voiceflow MCP with Claude Cowork

Atomic Agent logo

Atomic Agent

Use Voiceflow MCP with Atomic Agent

FAQ

Frequently asked questions

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

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

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