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How to integrate Freeagent MCP with LlamaIndex

Connect LlamaIndex to Freeagent MCP. List overdue invoices for this month, create a new expense for office supplies, and more using natural language, with authentication handled for you.

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Freeagent is a cloud-based accounting platform designed for freelancers and small businesses. It simplifies bookkeeping, invoicing, and expense management in one place.

76 Tools

Introduction

This guide walks you through connecting Freeagent to LlamaIndex using the Composio tool router. By the end, you'll have a working Freeagent agent that can list overdue invoices for this month, create a new expense for office supplies, summarize all unassigned transactions through natural language commands.

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

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

Also integrate Freeagent with

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TL;DR

Here's what you'll learn:
  • Set your OpenAI and Composio API keys
  • Install LlamaIndex and Composio packages
  • Create a Composio Tool Router session for Freeagent
  • Connect LlamaIndex to the Freeagent MCP server
  • Build a Freeagent-powered agent using LlamaIndex
  • Interact with Freeagent through natural language

What is LlamaIndex?

LlamaIndex is a data framework for building LLM applications. It provides tools for connecting LLMs to external data sources and services through agents and tools.

Key features include:

  • ReAct Agent: Reasoning and acting pattern for tool-using agents
  • MCP Tools: Native support for Model Context Protocol
  • Context Management: Maintain conversation context across interactions
  • Async Support: Built for async/await patterns

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

The Freeagent MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Freeagent account. It provides structured and secure access to your accounting records, so your agent can create invoices, record timeslips, review expenses, monitor cash flow, and track tax deadlines on your behalf.

  • Invoices, estimates, and credit notes: Have your agent create invoices, estimates, and credit notes, convert estimates into invoices, or convert eligible invoices into credit notes.
  • Financial reporting: Let the agent retrieve cash flow, profit and loss, trial balance, balance sheet, opening balance, and accounting transaction details for your business.
  • Expenses, bills, and banking: Direct your agent to list or update expenses, create bills with attachments, review bills and bank transactions, or create and list bank accounts.
  • Contacts, projects, and time tracking: Instruct your agent to create contacts and projects, review existing records, and add timeslips for completed work.
  • Tax and VAT planning: Have your agent list VAT returns and check your company tax timeline for upcoming events and deadlines.

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 step10 STEPS
1

Prerequisites

Before you begin, make sure you have:
  • Python 3.8/Node 16 or higher installed
  • A Composio account with the API key
  • An OpenAI API key
  • A Freeagent account and project
  • Basic familiarity with async Python/Typescript
2

Getting API Keys for OpenAI, Composio, and Freeagent

OpenAI API key (OPENAI_API_KEY)
  • Go to the OpenAI dashboard
  • Create an API key if you don't have one
  • Assign it to OPENAI_API_KEY in .env
Composio API key and user ID
  • Log into the Composio dashboard
  • Copy your API key from Settings
    • Use this as COMPOSIO_API_KEY
  • Pick a stable user identifier (email or ID)
    • Use this as COMPOSIO_USER_ID
3

Installing dependencies

npm install @composio/llamaindex @llamaindex/openai @llamaindex/tools @llamaindex/workflow dotenv

Create a new Typescript project and install the necessary dependencies:

  • @composio/llamaindex: Composio's LlamaIndex integration
  • @llamaindex/openai: OpenAI LLM integration
  • @llamaindex/tools: MCP client for LlamaIndex
  • @llamaindex/workflow: Workflow framework for LlamaIndex
  • dotenv: Environment variable management
4

Set environment variables

bash
OPENAI_API_KEY=your-openai-api-key
COMPOSIO_API_KEY=your-composio-api-key
COMPOSIO_USER_ID=your-user-id

Create a .env file in your project root:

These credentials will be used to:

  • Authenticate with OpenAI's GPT-5 model
  • Connect to Composio's Tool Router
  • Identify your Composio user session for Freeagent access
5

Import modules

import "dotenv/config";
import readline from "node:readline/promises";
import { stdin as input, stdout as output } from "node:process";

import { Composio } from "@composio/core";

import { mcp } from "@llamaindex/tools";
import { agent as createAgent } from "@llamaindex/workflow";
import { openai } from "@llamaindex/openai";

dotenv.config();

Create a new file called freeagent_llamaindex_agent.ts and import the required modules:

Key imports:

  • dotenv.config loads .env at runtime
  • readline gives us a simple CLI chat loop
  • Composio is the main Composio SDK client
  • mcp connects to an MCP endpoint
  • createAgent builds a LlamaIndex agent
  • openai configures the LLM backend
6

Load environment variables and initialize Composio

const OPENAI_API_KEY = process.env.OPENAI_API_KEY;
const COMPOSIO_API_KEY = process.env.COMPOSIO_API_KEY;
const COMPOSIO_USER_ID = process.env.COMPOSIO_USER_ID;

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

What's happening:

This ensures missing credentials cause early, clear errors before the agent attempts to initialise.

7

Create a Tool Router session and build the agent function

async function buildAgent() {

  console.log(`Initializing Composio client...${COMPOSIO_USER_ID!}...`);
  console.log(`COMPOSIO_USER_ID: ${COMPOSIO_USER_ID!}...`);

  const composio = new Composio({
    apiKey: COMPOSIO_API_KEY,
    provider: new LlamaindexProvider(),
  });

  const session = await composio.create(
    COMPOSIO_USER_ID!,
    {
      toolkits: ["freeagent"],
    },
  );

  const mcpUrl = session.mcp.url;
  console.log(`Composio Tool Router MCP URL: ${mcpUrl}`);

  const server = mcp({
    url: mcpUrl,
    clientName: "composio_tool_router_with_llamaindex",
    requestInit: {
      headers: {
        "x-api-key": COMPOSIO_API_KEY!,
      },
    },
    // verbose: true,
  });

  const tools = await server.tools();

  const llm = openai({ apiKey: OPENAI_API_KEY, model: "gpt-5" });

  const agent = createAgent({
    name: "composio_tool_router_with_llamaindex",
        description : "An agent that uses Composio Tool Router MCP tools to perform actions.",
    systemPrompt:
      "You are a helpful assistant connected to Composio Tool Router."+
"Use the available tools to answer user queries and perform Freeagent actions." ,
    llm,
    tools,
  });

  return agent;
}

What's happening here:

  • We create a Composio client using your API key and configure it with the LlamaIndex provider
  • We then create a tool router MCP session for your user, specifying the toolkits we want to use (in this case, freeagent)
  • The session returns an MCP HTTP endpoint URL that acts as a gateway to all your configured tools
  • LlamaIndex will connect to this endpoint to dynamically discover and use the available Freeagent tools.
  • The MCP tools are mapped to LlamaIndex-compatible tools and plug them into the Agent.
8

Create an interactive chat loop

async function chatLoop(agent: ReturnType<typeof createAgent>) {
  const rl = readline.createInterface({ input, output });

  console.log("Type 'quit' or 'exit' to stop.");

  while (true) {
    let userInput: string;

    try {
      userInput = (await rl.question("\nYou: ")).trim();
    } catch {
      console.log("\nAgent: Bye!");
      break;
    }

    if (!userInput) {
      continue;
    }

    const lower = userInput.toLowerCase();
    if (lower === "quit" || lower === "exit") {
      console.log("Agent: Bye!");
      break;
    }

    try {
      process.stdout.write("Agent: ");

      const stream = agent.runStream(userInput);
      let finalResult: any = null;

      for await (const event of stream) {
        // The event.data contains the streamed content
        const data: any = event.data;

        // Check for streaming delta content
        if (data?.delta) {
          process.stdout.write(data.delta);
        }

        // Store final result for fallback
        if (data?.result || data?.message) {
          finalResult = data;
        }
      }

      // If no streaming happened, show the final result
      if (finalResult) {
        const answer =
          finalResult.result ??
          finalResult.message?.content ??
          finalResult.message ??
          "";
        if (answer && typeof answer === "string" && !answer.includes("[object")) {
          process.stdout.write(answer);
        }
      }

      console.log(); // New line after streaming completes
    } catch (err: any) {
      console.error("\nAgent error:", err?.message ?? err);
    }
  }

  rl.close();
}

What's happening:

  • We're creating a direct terminal interface to chat with Freeagent
  • The LLM's responses are streamed to the CLI for faster interaction.
  • The agent uses context to maintain conversation history
  • The agent processes the request, selects appropriate Freeagent tools, and returns a result
  • We extract the answer from the result data structure and display it to the user
  • You can type 'quit' or 'exit' to stop the chat loop gracefully
  • Agent responses and any errors are streamed in a clear, readable format
9

Define the main entry point

async function main() {
  try {
    const agent = await buildAgent();
    await chatLoop(agent);
  } catch (err) {
    console.error("Failed to start agent:", err);
    process.exit(1);
  }
}

main();

What's happening here:

  • We're orchestrating the entire application flow
  • The agent gets built with proper error handling
  • Then we kick off the interactive chat loop so you can start talking to Freeagent
10

Run the agent

npx ts-node llamaindex-agent.ts

When prompted, authenticate and authorise your agent with Freeagent, then start asking questions.

Complete Code

Here's the complete code to get you started with Freeagent and LlamaIndex:

import "dotenv/config";
import readline from "node:readline/promises";
import { stdin as input, stdout as output } from "node:process";

import { Composio } from "@composio/core";
import { LlamaindexProvider } from "@composio/llamaindex";

import { mcp } from "@llamaindex/tools";
import { agent as createAgent } from "@llamaindex/workflow";
import { openai } from "@llamaindex/openai";

dotenv.config();

const OPENAI_API_KEY = process.env.OPENAI_API_KEY;
const COMPOSIO_API_KEY = process.env.COMPOSIO_API_KEY;
const COMPOSIO_USER_ID = process.env.COMPOSIO_USER_ID;

if (!OPENAI_API_KEY) {
    throw new Error("OPENAI_API_KEY is not set in the environment");
  }
if (!COMPOSIO_API_KEY) {
    throw new Error("COMPOSIO_API_KEY is not set in the environment");
  }
if (!COMPOSIO_USER_ID) {
    throw new Error("COMPOSIO_USER_ID is not set in the environment");
  }

async function buildAgent() {

  console.log(`Initializing Composio client...${COMPOSIO_USER_ID!}...`);
  console.log(`COMPOSIO_USER_ID: ${COMPOSIO_USER_ID!}...`);

  const composio = new Composio({
    apiKey: COMPOSIO_API_KEY,
    provider: new LlamaindexProvider(),
  });

  const session = await composio.create(
    COMPOSIO_USER_ID!,
    {
      toolkits: ["freeagent"],
    },
  );

  const mcpUrl = session.mcp.url;
  console.log(`Composio Tool Router MCP URL: ${mcpUrl}`);

  const server = mcp({
    url: mcpUrl,
    clientName: "composio_tool_router_with_llamaindex",
    requestInit: {
      headers: {
        "x-api-key": COMPOSIO_API_KEY!,
      },
    },
    // verbose: true,
  });

  const tools = await server.tools();

  const llm = openai({ apiKey: OPENAI_API_KEY, model: "gpt-5" });

  const agent = createAgent({
    name: "composio_tool_router_with_llamaindex",
    description:
      "An agent that uses Composio Tool Router MCP tools to perform actions.",
    systemPrompt:
      "You are a helpful assistant connected to Composio Tool Router."+
"Use the available tools to answer user queries and perform Freeagent actions." ,
    llm,
    tools,
  });

  return agent;
}

async function chatLoop(agent: ReturnType<typeof createAgent>) {
  const rl = readline.createInterface({ input, output });

  console.log("Type 'quit' or 'exit' to stop.");

  while (true) {
    let userInput: string;

    try {
      userInput = (await rl.question("\nYou: ")).trim();
    } catch {
      console.log("\nAgent: Bye!");
      break;
    }

    if (!userInput) {
      continue;
    }

    const lower = userInput.toLowerCase();
    if (lower === "quit" || lower === "exit") {
      console.log("Agent: Bye!");
      break;
    }

    try {
      process.stdout.write("Agent: ");

      const stream = agent.runStream(userInput);
      let finalResult: any = null;

      for await (const event of stream) {
        // The event.data contains the streamed content
        const data: any = event.data;

        // Check for streaming delta content
        if (data?.delta) {
          process.stdout.write(data.delta);
        }

        // Store final result for fallback
        if (data?.result || data?.message) {
          finalResult = data;
        }
      }

      // If no streaming happened, show the final result
      if (finalResult) {
        const answer =
          finalResult.result ??
          finalResult.message?.content ??
          finalResult.message ??
          "";
        if (answer && typeof answer === "string" && !answer.includes("[object")) {
          process.stdout.write(answer);
        }
      }

      console.log(); // New line after streaming completes
    } catch (err: any) {
      console.error("\nAgent error:", err?.message ?? err);
    }
  }

  rl.close();
}

async function main() {
  try {
    const agent = await buildAgent();
    await chatLoop(agent);
  } catch (err: any) {
    console.error("Failed to start agent:", err?.message ?? err);
    process.exit(1);
  }
}

main();

Conclusion

You've successfully connected Freeagent to LlamaIndex through Composio's Tool Router MCP layer. Key takeaways:
  • Tool Router dynamically exposes Freeagent tools through an MCP endpoint
  • LlamaIndex's ReActAgent handles reasoning and orchestration; Composio handles integrations
  • The agent becomes more capable without increasing prompt size
  • Async Python provides clean, efficient execution of agent workflows
You can easily extend this to other toolkits like Gmail, Notion, Stripe, GitHub, and more by adding them to the toolkits parameter.
TOOLS

Supported Tools

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

Cashflow summary for a date range

Tool to retrieve cashflow summary for a given date range from FreeAgent.

Get Company Details

Tool to retrieve company details from FreeAgent.

Create a Journal Set

Tool to create a journal set in FreeAgent.

Create Sales Tax Period

Tool to create a sales tax period in FreeAgent.

Create Task Under Project

Tool to create a task under a specific project in FreeAgent.

Create A Timeslip

Tool to create a new timeslip in FreeAgent.

Create a User

Tool to create a new user in FreeAgent.

Create Bank Account

Tool to create a bank account in FreeAgent.

Create Bill with Attachment

Tool to create a bill with optional attachment in FreeAgent.

Create Category

Tool to create a custom category in FreeAgent.

Create Contact

Tool to create a new contact in FreeAgent.

Create Credit Note

Tool to create a credit note in FreeAgent.

Create Credit Note Reconciliation

Tool to create a credit note reconciliation in FreeAgent.

Create Estimate

Tool to create a new estimate in FreeAgent.

Create Estimate Item

Tool to create an estimate item in FreeAgent.

Duplicate Estimate

Tool to duplicate an existing estimate in FreeAgent.

Send Estimate Email

Tool to email an estimate in FreeAgent.

Create Invoice

Tool to create an invoice in FreeAgent.

Create Invoice Item

Tool to create an invoice item in FreeAgent.

Duplicate Invoice

Tool to duplicate an existing invoice in FreeAgent.

Create Note

Tool to create a note for a contact or project in FreeAgent.

Create Price List Item

Tool to create a price list item in FreeAgent.

Create Project

Tool to create a project in FreeAgent.

Delete Bank Transaction Explanation

Tool to delete a bank transaction explanation in FreeAgent.

Delete Estimates Default Additional Text

Tool to delete default additional text for estimates in FreeAgent.

Delete Note

Tool to delete a note by its ID.

Get Invoice Timeline

Tool to retrieve invoice timeline showing chronological record of invoice-related events.

Get Mileage Settings

Tool to retrieve mileage settings including engine type/size options and reimbursement rates.

Get Opening Balances

Tool to retrieve the Opening Balances journal set for a company.

Get Personal Profile

Tool to retrieve the authenticated user's personal profile from FreeAgent.

Get the Opening Balances

Tool to retrieve the opening balances from the trial balance summary.

Get the P&L summary

Tool to retrieve the Profit and Loss summary for a specified period from FreeAgent.

Get Trial Balance Summary

Tool to get the trial balance summary from FreeAgent.

Get Balance Sheet

Tool to retrieve the balance sheet for a FreeAgent account.

Get Opening Balances

Tool to retrieve opening balances for the balance sheet from FreeAgent.

List Accounting Transactions

Tool to list all accounting transactions from FreeAgent.

List All CIS Bands

Tool to list all CIS (Construction Industry Scheme) bands for a company.

List All Expenses

Tool to list all expenses from FreeAgent.

List All Price List Items

Tool to list all price list items from FreeAgent.

List All Properties

Tool to list all properties in FreeAgent.

List All Recurring Invoices

Tool to retrieve a list of recurring invoices from FreeAgent.

List All Sales Tax Periods

Tool to list all sales tax periods for a company in FreeAgent.

List All Stock Items

Tool to list all stock items from FreeAgent.

List All Tasks

Tool to list all tasks in FreeAgent.

List All Timeslips

Tool to list all timeslips from FreeAgent.

List All Users

Tool to list users in FreeAgent.

List Bank Accounts

Tool to list bank accounts in FreeAgent.

List Bank Feeds

Tool to list all bank feeds for a company.

List Bank Transactions

Tool to list all bank transactions under a certain bank account in FreeAgent.

List Bills

Tool to retrieve a list of bills from FreeAgent.

List Business Categories

Tool to retrieve all available business categories from FreeAgent.

List Categories

Tool to retrieve all categories for the current FreeAgent company.

List Contacts

Tool to list contacts in FreeAgent.

List Credit Note Reconciliations

Tool to retrieve all credit note reconciliations from FreeAgent.

List Credit Notes

Tool to list credit notes from FreeAgent.

List EC MOSS Sales Tax Rates

Tool to retrieve EC VAT MOSS sales tax rates for a specific EU country and date.

List Estimates

Tool to list estimates in FreeAgent.

Get Default Estimates Additional Text

Tool to retrieve the default additional text for estimates.

List Final Accounts Reports

Tool to list final accounts reports for a company in FreeAgent.

List Hire Purchases

Tool to retrieve all hire purchases for the authorized FreeAgent account.

Get Default Additional Text

Tool to get the default additional text shown on all invoices.

List Notes

Tool to retrieve a list of notes for a contact or project.

List Projects

Tool to list projects in FreeAgent.

List VAT Returns

Tool to list VAT returns for a company in FreeAgent.

Show Tax Timeline

Tool to retrieve the company's tax timeline showing upcoming tax events and deadlines.

Update Bank Transaction Explanation

Tool to update a bank transaction explanation in FreeAgent.

Update Estimates Default Additional Text

Tool to update the default additional text for estimates in FreeAgent.

Convert Estimate to Invoice

Tool to convert an estimate to an invoice in FreeAgent.

Update Expense

Tool to update an existing expense in FreeAgent.

Update Invoices Default Additional Text

Tool to update the default additional text shown on all invoices.

Convert Invoice to Credit Note

Tool to convert a draft negative invoice to a credit note in FreeAgent.

Update a Journal Set

Tool to update a journal set in FreeAgent.

Update Note

Tool to update an existing note in FreeAgent.

Update Price List Item

Tool to update a price list item in FreeAgent.

Update Personal Profile

Tool to update the authenticated user's personal profile in FreeAgent.

Upload a Bank Statement

Tool to upload a bank statement to FreeAgent.

FRAMEWORKS

How to build Freeagent MCP Agent with another framework

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Claude Code

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Claude Cowork

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OpenAI Agents SDK logo

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Claude Agent SDK logo

Claude Agent SDK

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Grok Bot logo

Grok Bot

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Codex logo

Codex

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OpenClaw logo

OpenClaw

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Hermes logo

Hermes

Use Freeagent MCP with Hermes

Atomic Agent logo

Atomic Agent

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Google ADK logo

Google ADK

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LangChain logo

LangChain

Use Freeagent MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Freeagent MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Freeagent MCP with Mastra AI

CrewAI logo

CrewAI

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Pydantic AI logo

Pydantic AI

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AutoGen logo

AutoGen

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FAQ

Frequently asked questions

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

Yes, you can. LlamaIndex 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 Freeagent tools.

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

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