How to integrate Proabono MCP with Mastra AI

This guide walks you through connecting Proabono to Mastra AI using the Composio tool router. By the end, you'll have a working Proabono agent that can list all active subscriptions for a customer, create a new subscription for acme corp, show overdue invoices for a specific customer through natural language commands. This guide will help you understand how to give your Mastra AI agent real control over a Proabono account through Composio's Proabono MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Basic

Proabono is a smart subscription management platform that automates billing and recurring payments. It streamlines your subscription operations and customer lifecycle.

67 Tools

Introduction

This guide walks you through connecting Proabono to Mastra AI using the Composio tool router. By the end, you'll have a working Proabono agent that can list all active subscriptions for a customer, create a new subscription for acme corp, show overdue invoices for a specific customer through natural language commands.

This guide will help you understand how to give your Mastra AI agent real control over a Proabono account through Composio's Proabono MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Proabono with

OpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKLlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • Set up your environment so Mastra, OpenAI, and Composio work together
  • Create a Tool Router session in Composio that exposes Proabono tools
  • Connect Mastra's MCP client to the Composio generated MCP URL
  • Fetch Proabono tool definitions and attach them as a toolset
  • Build a Mastra agent that can reason, call tools, and return structured results
  • Run an interactive CLI where you can chat with your Proabono agent

What is Mastra AI?

Mastra AI is a TypeScript framework for building AI agents with tool support. It provides a clean API for creating agents that can use external services through MCP.

Key features include:

  • MCP Client: Built-in support for Model Context Protocol servers
  • Toolsets: Organize tools into logical groups
  • Step Callbacks: Monitor and debug agent execution
  • OpenAI Integration: Works with OpenAI models via @ai-sdk/openai

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

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

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS
1

Prerequisites

Before starting, make sure you have:
  • Node.js 18 or higher
  • A Composio account with an active API key
  • An OpenAI API key
  • Basic familiarity with TypeScript
2

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard and create an API key.
  • You need credits or a connected billing setup to use the models.
  • Store the key somewhere safe.
Composio API Key
  • Log in to the Composio dashboard.
  • Go to Settings and copy your API key.
  • This key lets your Mastra agent talk to Composio and reach Proabono through MCP.
3

Install dependencies

bash
npm install @composio/core @mastra/core @mastra/mcp @ai-sdk/openai dotenv

Install the required packages.

What's happening:

  • @composio/core is the Composio SDK for creating MCP sessions
  • @mastra/core provides the Agent class
  • @mastra/mcp is Mastra's MCP client
  • @ai-sdk/openai is the model wrapper for OpenAI
  • dotenv loads environment variables from .env
4

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key_here

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates your requests to Composio
  • COMPOSIO_USER_ID tells Composio which user this session belongs to
  • OPENAI_API_KEY lets the Mastra agent call OpenAI models
5

Import libraries and validate environment

typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({
  apiKey: composioAPIKey as string,
});
What's happening:
  • dotenv/config auto loads your .env so process.env.* is available
  • openai gives you a Mastra compatible model wrapper
  • Agent is the Mastra agent that will call tools and produce answers
  • MCPClient connects Mastra to your Composio MCP server
  • Composio is used to create a Tool Router session
6

Create a Tool Router session for Proabono

typescript
async function main() {
  const session = await composio.create(
    composioUserID as string,
    {
      toolkits: ["proabono"],
    },
  );

  const composioMCPUrl = session.mcp.url;
  console.log("Proabono MCP URL:", composioMCPUrl);
What's happening:
  • create spins up a short-lived MCP HTTP endpoint for this user
  • The toolkits array contains "proabono" for Proabono access
  • session.mcp.url is the MCP URL that Mastra's MCPClient will connect to
7

Configure Mastra MCP client and fetch tools

typescript
const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      nasdaq: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

console.log("Fetching MCP tools from Composio...");
const composioTools = await mcpClient.getTools();
console.log("Number of tools:", Object.keys(composioTools).length);
What's happening:
  • MCPClient takes an id for this client and a list of MCP servers
  • The headers property includes the x-api-key for authentication
  • getTools fetches the tool definitions exposed by the Proabono toolkit
8

Create the Mastra agent

typescript
const agent = new Agent({
    name: "proabono-mastra-agent",
    instructions: "You are an AI agent with Proabono tools via Composio.",
    model: "openai/gpt-5",
  });
What's happening:
  • Agent is the core Mastra agent
  • name is just an identifier for logging and debugging
  • instructions guide the agent to use tools instead of only answering in natural language
  • model uses openai("gpt-5") to configure the underlying LLM
9

Set up interactive chat interface

typescript
let messages: AiMessageType[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end.\n");

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: "> ",
});

rl.prompt();

rl.on("line", async (userInput: string) => {
  const trimmedInput = userInput.trim();

  if (["exit", "quit", "bye"].includes(trimmedInput.toLowerCase())) {
    console.log("\nGoodbye!");
    rl.close();
    process.exit(0);
  }

  if (!trimmedInput) {
    rl.prompt();
    return;
  }

  messages.push({
    id: crypto.randomUUID(),
    role: "user",
    content: trimmedInput,
  });

  console.log("\nAgent is thinking...\n");

  try {
    const response = await agent.generate(messages, {
      toolsets: {
        proabono: composioTools,
      },
      maxSteps: 8,
    });

    const { text } = response;

    if (text && text.trim().length > 0) {
      console.log(`Agent: ${text}\n`);
        messages.push({
          id: crypto.randomUUID(),
          role: "assistant",
          content: text,
        });
      }
    } catch (error) {
      console.error("\nError:", error);
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    console.log("\nSession ended.");
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main().catch((err) => {
  console.error("Fatal error:", err);
  process.exit(1);
});
What's happening:
  • messages keeps the full conversation history in Mastra's expected format
  • agent.generate runs the agent with conversation history and Proabono toolsets
  • maxSteps limits how many tool calls the agent can take in a single run
  • onStepFinish is a hook that prints intermediate steps for debugging

Complete Code

Here's the complete code to get you started with Proabono and Mastra AI:

typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({ apiKey: composioAPIKey as string });

async function main() {
  const session = await composio.create(composioUserID as string, {
    toolkits: ["proabono"],
  });

  const composioMCPUrl = session.mcp.url;

  const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      proabono: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

  const composioTools = await mcpClient.getTools();

  const agent = new Agent({
    name: "proabono-mastra-agent",
    instructions: "You are an AI agent with Proabono tools via Composio.",
    model: "openai/gpt-5",
  });

  let messages: AiMessageType[] = [];

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: "> ",
  });

  rl.prompt();

  rl.on("line", async (input: string) => {
    const trimmed = input.trim();
    if (["exit", "quit"].includes(trimmed.toLowerCase())) {
      rl.close();
      return;
    }

    messages.push({ id: crypto.randomUUID(), role: "user", content: trimmed });

    const { text } = await agent.generate(messages, {
      toolsets: { proabono: composioTools },
      maxSteps: 8,
    });

    if (text) {
      console.log(`Agent: ${text}\n`);
      messages.push({ id: crypto.randomUUID(), role: "assistant", content: text });
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main();

Conclusion

You've built a Mastra AI agent that can interact with Proabono through Composio's Tool Router. You can extend this further by:
  • Adding other toolkits like Gmail, Slack, or GitHub
  • Building a web-based chat interface around this agent
  • Using multiple MCP endpoints to enable cross-app workflows
TOOLS

Supported Tools

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

Anonymize Customer

Tool to anonymize a customer for GDPR compliance.

Bill Customer

Tool to trigger billing for a customer.

Create Customer

Tool to create or declare a customer in ProAbono via the Backoffice API.

Create Feature

Tool to create a new feature in ProAbono via the Backoffice API.

Delete Customer

Tool to delete a customer from ProAbono by ID.

Delete Offer

Tool to delete an offer from ProAbono by ID.

Delete Pricing Table

Tool to delete a pricing table from ProAbono by its ID.

Delete Pricing Table Offer

Tool to delete a pricing table offer via the ProAbono Backoffice API.

Delete Subscription Discount

Tool to delete a subscription discount via the Backoffice API.

Enable Webhook

Tool to enable a webhook in ProAbono via the Notification API.

Get Customer by ID

Tool to retrieve a single customer by ID from ProAbono Backoffice API.

Get Customer Billing Address

Tool to retrieve a customer's billing address via the Backoffice API.

Get Customer Billing Address by Reference

Tool to retrieve the billing address for a customer by reference from ProAbono API.

Get Customer by Reference

Tool to retrieve a customer by their reference identifier from ProAbono API.

Get Customer Payment Settings

Tool to retrieve customer payment settings via the Backoffice API.

Get Discount

Tool to retrieve a discount by ID via the Backoffice API.

Get Feature by ID

Tool to retrieve a feature by ID from ProAbono Backoffice API.

Get Feature by Reference

Tool to retrieve a single feature by its reference from ProAbono API.

Get Invoice

Tool to retrieve a specific invoice or credit note by ID from ProAbono.

Get Offer by ID

Tool to retrieve a single offer by its ID from ProAbono Backoffice API.

Get Subscription by Customer Reference

Tool to retrieve a subscription by customer reference from ProAbono.

Get Subscription Creation Quote

Tool to get a pricing quote for creating a new subscription without actually creating it.

Get Usage Record

Tool to retrieve a single usage record for a specific feature and customer combination from ProAbono.

Get Usages for Customer

Tool to retrieve usage data for customers from ProAbono.

Invalidate Customer

Tool to invalidate a customer by their reference.

Invalidate Customer by ID

Tool to invalidate a customer by their ProAbono internal ID.

List Balance Lines

Tool to list all balance lines from ProAbono.

List Businesses

Tool to list all businesses from ProAbono via the Backoffice API.

List Business Localization

Tool to list localization entries by business from ProAbono via the HostedPages API.

List Customer Moves

Tool to list all customer balance moves via the ProAbono Backoffice API.

List Customers

Tool to list all customers from ProAbono via the Backoffice API.

List Customers by Feature

Tool to list customers that have access to a specific feature via the ProAbono API.

List Discounts

Tool to list all discounts from ProAbono's Backoffice API.

List Features

Tool to list all features via the ProAbono Backoffice API.

List Features (V1)

Tool to retrieve all features from ProAbono API using the /v1/Features endpoint.

List Gateway Accounts

Tool to list payment gateway accounts from ProAbono Backoffice API.

List Gateway Permissions

Tool to list gateway permissions from ProAbono API.

List Gateway Requests

Tool to list gateway requests from ProAbono.

List Gateway Transactions

Tool to list gateway transactions from ProAbono.

List Invoice Lines

Tool to list all invoice lines from ProAbono via the Backoffice API.

List Invoices and Credit Notes

Tool to list all invoices and credit notes from ProAbono Backoffice API.

List Invoices by Customer Reference

Tool to list invoices for a specific customer by their reference identifier from ProAbono API.

List Offers

Tool to list all subscription offers (plans) from ProAbono Backoffice API.

List Payments

Tool to list all payments from ProAbono Backoffice API.

List Pricing Table Offers

Tool to list all pricing table offers via the ProAbono Backoffice API.

List Pricing Tables

Tool to list all pricing tables from ProAbono Backoffice API.

List Segment Localizations

Tool to list localization entries by segment from ProAbono Backoffice API.

List Segments

Tool to list all segments from ProAbono via the Backoffice API.

List Subscription Discounts

Tool to list all subscription discounts via the ProAbono Backoffice API.

List Subscription Features

Tool to list all subscription features via the ProAbono Backoffice API.

List Subscription Periods

Tool to list all subscription periods (billing cycles) from ProAbono Backoffice API.

List Subscriptions

Tool to list all subscriptions from ProAbono via the Backoffice API.

List Subscriptions (V1)

Tool to retrieve all subscriptions from ProAbono API using the /v1/Subscriptions endpoint.

List Tax Profile Exceptions

Tool to list tax profile exceptions from ProAbono Organization API.

List Tax Profiles

Tool to list all tax profiles from ProAbono via the Backoffice API.

List Upgrade Offers

Tool to retrieve offers available to upgrade an existing customer subscription.

List Webhook Notifications

Tool to list webhook notifications from ProAbono via the Notification API.

List Webhooks

Tool to list webhooks from ProAbono Notification API.

Quote Balance Line Creation

Tool to get a pricing quote for creating a balance line (one-time charge or credit).

Revoke Customer Portal Links

Tool to revoke encrypted customer portal links and generate new ones in ProAbono.

Update Business Billing Address

Tool to update business billing address via the Backoffice API.

Update Customer

Tool to update an existing customer in ProAbono via the Backoffice API.

Update Customer Billing Address

Tool to update the billing address for a customer in ProAbono via the API.

Update Customer Payment Settings

Tool to update payment settings for a specific customer in ProAbono.

Update Customer Shipping Address

Tool to update customer shipping address via the Backoffice API.

Update Feature

Tool to update an existing feature in ProAbono via the Backoffice API.

Update Tax Profiles

Tool to update an existing tax profile in ProAbono via the Backoffice API.

FRAMEWORKS

How to build Proabono MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Proabono MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Proabono MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Proabono MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Proabono MCP with Claude Cowork

Codex logo

Codex

Use Proabono MCP with Codex

OpenClaw logo

OpenClaw

Use Proabono MCP with OpenClaw

Hermes logo

Hermes

Use Proabono MCP with Hermes

CLI logo

CLI

Use Proabono MCP with CLI

Google ADK logo

Google ADK

Use Proabono MCP with Google ADK

LangChain logo

LangChain

Use Proabono MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Proabono MCP with Vercel AI SDK

LlamaIndex logo

LlamaIndex

Use Proabono MCP with LlamaIndex

CrewAI logo

CrewAI

Use Proabono MCP with CrewAI

FAQ

Frequently asked questions

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

Yes, you can. Mastra AI 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 Proabono tools.

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

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Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

Harsha Gaddipati
Harsha Gaddipati
Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya
Abhi Arya
Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave
Nirman Dave
CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu
Ryan Yu
Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola
Tomisin Jenrola
Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche
Jerome Leclanche
Co-Founder, Ingram Technologies