How to integrate Parsio.io MCP with Codex

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Introduction

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Parsio.io MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

Also integrate Parsio.io with

Why use Composio?

Apart from a managed and hosted MCP server, you will get:

  • CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Large tool responses: Handle them to minimise context rot.
  • Dynamic just-in-time access to 20,000 tools across 870+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.

How to install Parsio.io MCP in Codex

Run the setup command

Run this command in your terminal to add the Composio MCP server to Codex.

Terminal

It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

Composio authentication page

(Optional) Authenticate with OAuth

To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.

bash
codex mcp login composio

Verify the connection

Run codex mcp list to confirm Composio appears as a registered MCP server.

bash
codex mcp list

Codex App

Codex App follows the same approach as VS Code.

  1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
  2. Fill the header and Key fields with { "x-consumer-api-key" = "ck_*******" }.
  3. The Key is the Composio API key, that you can find on connect.composio.dev
  4. Click on Authenticate and authorize Codex to your Composio account and you're all set.
Codex App MCP setup
  1. Restart and verify if it's there in .codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }

What is the Parsio.io MCP server, and what's possible with it?

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

Supported Tools & Triggers

Tools
Create HTML/Text DocumentTool to create and parse HTML or text documents via API.
Create MailboxTool to create a new mailbox with a specified name.
Create WebhookTool to create a new webhook for a mailbox with specified URL, event trigger, and settings.
Delete MailboxTool to delete a specific mailbox from your Parsio account.
Delete TemplatesTool to delete multiple templates by providing an array of template IDs.
Delete WebhooksTool to delete multiple webhooks from a mailbox.
Disable TemplatesTool to disable multiple templates by providing an array of template IDs.
Enable TemplatesTool to enable multiple templates by providing an array of template IDs.
Get DocumentTool to retrieve a specific document with parsed data as JSON.
Get Mailbox DetailsTool to retrieve details of a specific mailbox.
Get Parsed DataTool to get parsed data from a mailbox with optional date range filters and pagination.
Get Template DetailsTool to retrieve details of a specific parsing template by its ID.
Get Webhook DetailsTool to retrieve details of a specific webhook by its ID.
List Collected EmailsTool to list all collected email addresses from a specific mailbox.
List DocumentsTool to retrieve a list of documents from a specific mailbox.
List MailboxesTool to retrieve all mailboxes in the account.
List Table FieldsTool to list all table fields in a specific mailbox.
List Templates in MailboxTool to list all parsing templates associated with a specific mailbox.
List WebhooksTool to retrieve all webhooks configured for a specific mailbox.
Parse DocumentTool to trigger parsing of a specific document.
Skip DocumentsTool to skip multiple documents in a mailbox by providing document IDs.
Update Mailbox SettingsTool to update mailbox settings including name, email prefix, and processing options.
Update WebhookTool to update an existing webhook's configuration.
Upload FileTool to upload and parse PDF, HTML, CSV, TXT, DOCX, RTF or XML files (max 20MB) to a mailbox.

Conclusion

You've successfully integrated Parsio.io with Codex using Composio's MCP server. Now you can interact with Parsio.io directly from your terminal, VS Code, or the Codex App using natural language commands.

Key benefits of this setup:

  • Seamless integration across CLI, VS Code, and standalone app
  • Natural language commands for Parsio.io operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 870+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

  • Try asking Codex to perform various Parsio.io operations
  • Explore cross-app workflows by connecting more toolkits
  • Build automation scripts that leverage Codex's AI capabilities

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FAQ

What are the differences in Tool Router MCP and Parsio.io MCP?

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

Can I use Tool Router MCP with Codex?

Yes, you can. Codex 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 Parsio.io tools.

Can I manage the permissions and scopes for Parsio.io while using Tool Router?

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

Used by agents from

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