How to integrate Payhere MCP with Codex

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

Payhere logoPayhere
Api Key

Payhere is a simple online payment platform for creating and sharing payment links. It makes collecting payments fast and hassle-free for businesses and freelancers.

13 Tools

Introduction

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

Also integrate Payhere 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 1000+ 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 Payhere 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 dashboard.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 Payhere MCP server, and what's possible with it?

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

Conclusion

You've successfully integrated Payhere with Codex using Composio's MCP server. Now you can interact with Payhere 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 Payhere operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1000+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

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

Supported Tools

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

Create Hook

Tool to subscribe to a REST hook for receiving webhook events.

Create Plan

Tool to create a new payment plan in PayHere.

Delete Hook

Tool to remove a REST hook listener subscription.

Get Current Company

Tool to fetch company information for the currently authenticated user.

Get Current Company Stats

Tool to fetch payment statistics for the last 30 days with comparison data from the preceding 30-day period (30-60 days ago).

Get User

Tool to fetch information on the currently authenticated user.

List Customers

Tool to list all customers from Payhere, ordered chronologically with most recent first.

List REST Hooks

Tool to list all active REST hooks subscriptions for the authenticated company.

List Payments

Tool to list all payments ordered chronologically, most recent first.

List Plans

Tool to list all plans in your PayHere account.

List subscriptions

Tool to list all subscriptions ordered chronologically by most recent payment first.

Update Current Company

Tool to update the company information for the currently authenticated user.

Update Plan

Tool to update an existing plan's configuration and settings.

FAQ

Frequently asked questions

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

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 Payhere tools.

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

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