How to integrate Ramp MCP with Pydantic AI

This guide walks you through connecting Ramp to Pydantic AI using the Composio tool router. By the end, you'll have a working Ramp agent that can download last month's statement as pdf, list all transactions over $500 this week, get details of your virtual cards through natural language commands. This guide will help you understand how to give your Pydantic AI agent real control over a Ramp account through Composio's Ramp MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

Get started for freeGet a demo
Ramp logoRamp
Oauth2

Ramp is a finance automation platform for tracking business expenses and income. It helps you manage spending and gain actionable insights into your company's finances.

88 Tools

Introduction

This guide walks you through connecting Ramp to Pydantic AI using the Composio tool router. By the end, you'll have a working Ramp agent that can download last month's statement as pdf, list all transactions over $500 this week, get details of your virtual cards through natural language commands.

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

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

Also integrate Ramp with

OpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • How to set up your Composio API key and User ID
  • How to create a Composio Tool Router session for Ramp
  • How to attach an MCP Server to a Pydantic AI agent
  • How to stream responses and maintain chat history
  • How to build a simple REPL-style chat interface to test your Ramp workflows

What is Pydantic AI?

Pydantic AI is a Python framework for building AI agents with strong typing and validation. It leverages Pydantic's data validation capabilities to create robust, type-safe AI applications.

Key features include:

  • Type Safety: Built on Pydantic for automatic data validation
  • MCP Support: Native support for Model Context Protocol servers
  • Streaming: Built-in support for streaming responses
  • Async First: Designed for async/await patterns

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

The Ramp MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Ramp account. It provides structured and secure access to your company's financial data, so your agent can fetch transactions, analyze card activity, generate statements, manage departments, and retrieve detailed expense information on your behalf.

  • Comprehensive transaction tracking: Instantly pull lists of all your business transactions or your own card activity, making it easy to monitor expenses and spot anomalies.
  • Card management and insights: Retrieve details about specific Ramp cards or see all cards assigned to you, including limits, status, and cardholder info for better financial oversight.
  • Automated statement generation: Ask your agent to generate and download account statements in multiple formats (PDF, CSV, JSON) for reporting or bookkeeping.
  • Department and organizational management: Create new departments or fetch detailed department profiles to help structure your expense tracking and categorize spending.
  • Detailed transaction analysis: Dive into specific transactions to get merchant information, receipts, dispute details, and accounting codes for audit and compliance purposes.

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:
  • Python 3.9 or higher
  • A Composio account with an active API key
  • Basic familiarity with Python and async programming
2

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard and create an API key. You'll need credits to use the models, or you can connect to another model provider.
  • Keep the API key safe.
Composio API Key
  • Log in to the Composio dashboard.
  • Navigate to your API settings and generate a new API key.
  • Store this key securely as you'll need it for authentication.
3

Install dependencies

bash
pip install composio pydantic-ai python-dotenv

Install the required libraries.

What's happening:

  • composio connects your agent to external SaaS tools like Ramp
  • pydantic-ai lets you create structured AI agents with tool support
  • python-dotenv loads your environment variables securely from a .env file
4

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates your agent to Composio's API
  • USER_ID associates your session with your account for secure tool access
  • OPENAI_API_KEY to access OpenAI LLMs
5

Import dependencies

python
import asyncio
import os
from dotenv import load_dotenv
from composio import Composio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerStreamableHTTP

load_dotenv()
What's happening:
  • We load environment variables and import required modules
  • Composio manages connections to Ramp
  • MCPServerStreamableHTTP connects to the Ramp MCP server endpoint
  • Agent from Pydantic AI lets you define and run the AI assistant
6

Create a Tool Router Session

python
async def main():
    api_key = os.getenv("COMPOSIO_API_KEY")
    user_id = os.getenv("USER_ID")
    if not api_key or not user_id:
        raise RuntimeError("Set COMPOSIO_API_KEY and USER_ID in your environment")

    # Create a Composio Tool Router session for Ramp
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["ramp"],
    )
    url = session.mcp.url
    if not url:
        raise ValueError("Composio session did not return an MCP URL")
What's happening:
  • We're creating a Tool Router session that gives your agent access to Ramp tools
  • The create method takes the user ID and specifies which toolkits should be available
  • The returned session.mcp.url is the MCP server URL that your agent will use
7

Initialize the Pydantic AI Agent

python
# Attach the MCP server to a Pydantic AI Agent
ramp_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
agent = Agent(
    "openai:gpt-5",
    toolsets=[ramp_mcp],
    instructions=(
        "You are a Ramp assistant. Use Ramp tools to help users "
        "with their requests. Ask clarifying questions when needed."
    ),
)
What's happening:
  • The MCP client connects to the Ramp endpoint
  • The agent uses GPT-5 to interpret user commands and perform Ramp operations
  • The instructions field defines the agent's role and behavior
8

Build the chat interface

python
# Simple REPL with message history
history = []
print("Chat started! Type 'exit' or 'quit' to end.\n")
print("Try asking the agent to help you with Ramp.\n")

while True:
    user_input = input("You: ").strip()
    if user_input.lower() in {"exit", "quit", "bye"}:
        print("\nGoodbye!")
        break
    if not user_input:
        continue

    print("\nAgent is thinking...\n", flush=True)

    async with agent.run_stream(user_input, message_history=history) as stream_result:
        collected_text = ""
        async for chunk in stream_result.stream_output():
            text_piece = None
            if isinstance(chunk, str):
                text_piece = chunk
            elif hasattr(chunk, "delta") and isinstance(chunk.delta, str):
                text_piece = chunk.delta
            elif hasattr(chunk, "text"):
                text_piece = chunk.text
            if text_piece:
                collected_text += text_piece
        result = stream_result

    print(f"Agent: {collected_text}\n")
    history = result.all_messages()
What's happening:
  • The agent reads input from the terminal and streams its response
  • Ramp API calls happen automatically under the hood
  • The model keeps conversation history to maintain context across turns
9

Run the application

python
if __name__ == "__main__":
    asyncio.run(main())
What's happening:
  • The asyncio loop launches the agent and keeps it running until you exit

Complete Code

Here's the complete code to get you started with Ramp and Pydantic AI:

python
import asyncio
import os
from dotenv import load_dotenv
from composio import Composio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerStreamableHTTP

load_dotenv()

async def main():
    api_key = os.getenv("COMPOSIO_API_KEY")
    user_id = os.getenv("USER_ID")
    if not api_key or not user_id:
        raise RuntimeError("Set COMPOSIO_API_KEY and USER_ID in your environment")

    # Create a Composio Tool Router session for Ramp
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["ramp"],
    )
    url = session.mcp.url
    if not url:
        raise ValueError("Composio session did not return an MCP URL")

    # Attach the MCP server to a Pydantic AI Agent
    ramp_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
    agent = Agent(
        "openai:gpt-5",
        toolsets=[ramp_mcp],
        instructions=(
            "You are a Ramp assistant. Use Ramp tools to help users "
            "with their requests. Ask clarifying questions when needed."
        ),
    )

    # Simple REPL with message history
    history = []
    print("Chat started! Type 'exit' or 'quit' to end.\n")
    print("Try asking the agent to help you with Ramp.\n")

    while True:
        user_input = input("You: ").strip()
        if user_input.lower() in {"exit", "quit", "bye"}:
            print("\nGoodbye!")
            break
        if not user_input:
            continue

        print("\nAgent is thinking...\n", flush=True)

        async with agent.run_stream(user_input, message_history=history) as stream_result:
            collected_text = ""
            async for chunk in stream_result.stream_output():
                text_piece = None
                if isinstance(chunk, str):
                    text_piece = chunk
                elif hasattr(chunk, "delta") and isinstance(chunk.delta, str):
                    text_piece = chunk.delta
                elif hasattr(chunk, "text"):
                    text_piece = chunk.text
                if text_piece:
                    collected_text += text_piece
            result = stream_result

        print(f"Agent: {collected_text}\n")
        history = result.all_messages()

if __name__ == "__main__":
    asyncio.run(main())

Conclusion

You've built a Pydantic AI agent that can interact with Ramp through Composio's Tool Router. With this setup, your agent can perform real Ramp actions through natural language. You can extend this further by:
  • Adding other toolkits like Gmail, HubSpot, or Salesforce
  • Building a web-based chat interface around this agent
  • Using multiple MCP endpoints to enable cross-app workflows (for example, Gmail + Ramp for workflow automation)
This architecture makes your AI agent "agent-native", able to securely use APIs in a unified, composable way without custom integrations.
TOOLS

Supported Tools

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

Create Department

Tool for creating a new department in your Ramp organization.

Create Inventory Item Accounting Field

Tool to create a new inventory item accounting field for tracking inventory categories.

Create Transaction Memo

Tool for uploading a new memo for a transaction in Ramp.

Create Mileage Reimbursement

Tool to create a mileage reimbursement in Ramp.

Create New Custom Accounting Field

Tool for creating a new custom accounting field.

Create Tax Code Accounting Field

Tool to create a new tax code accounting field in Ramp.

Create User Invite

Tool to create a user invite for onboarding new employees to Ramp.

Create Webhook Subscription

Tool to create a new webhook subscription for receiving event notifications from Ramp.

Deactivate User

Tool to deactivate a user in your Ramp organization.

Delete Accounting GL Account

Tool to delete a general ledger account from Ramp.

Delete Accounting Connection

Tool to disconnect the current active API-based accounting connection.

Delete Custom Accounting Field

Tool to delete a custom accounting field from Ramp.

Delete Accounting Inventory Item Option

Tool to delete an accounting inventory item option from Ramp.

Delete Tax Code Accounting Field

Tool to delete the tax code accounting field from Ramp.

Delete Accounting Tax Code Option

Tool to delete a tax code option from Ramp.

Delete Accounting Tax Rate

Tool to delete an accounting tax rate from Ramp.

Delete Accounting Vendor

Tool to delete an accounting vendor from Ramp.

Delete Custom Field Option

Tool to delete a custom accounting field option from Ramp.

Delete Inventory Item Field

Tool to delete the inventory item accounting field from Ramp.

Remove Users from Shared Limit

Tool to remove users from a shared spend limit in Ramp.

Delete Webhook Subscription

Tool to delete a webhook subscription by ID.

Fetch General Ledger Account

Tool to fetch a specific general ledger account by ID from Ramp.

Fetch Accounting Vendor

Tool to fetch a specific accounting vendor by ID from Ramp.

Fetch Custom Accounting Field

Tool for fetching a custom accounting field.

List General Ledger Accounts

Tool to list general ledger accounts from Ramp.

Fetch All Accounting Connections

Tool to fetch all accounting connections for the current Ramp business.

Get Accounting Connection

Tool to fetch the current active accounting connection for a Ramp account.

Fetch Accounting Connection By ID

Tool to fetch a specific accounting connection by ID from Ramp.

List Custom Accounting Fields

Tool to list custom accounting fields for coding transactions.

List Accounting Vendors

Tool to list accounting vendors from Ramp.

Get All Transactions

Get all the transactions.

Get Card

Tool for retrieving detailed information about a specific card.

Get Card Vault Resource

Tool to fetch a card's sensitive details from the vault.

Get Custom Field Option

Tool to fetch a custom accounting field option by its ID.

Get Department

Tool for retrieving detailed information about a specific department.

Get Inventory Item Field

Tool to fetch inventory item accounting field for the current accounting connection.

Get Memo

Tool to fetch a transaction memo.

Get Reimbursement Details

Tool for retrieving complete details of a specific reimbursement.

Get Spend Limit

Tool to fetch detailed information about a specific spend limit.

Get Statement

Tool for retrieving statement details or downloading statements.

Get Transaction Details

Tool for retrieving complete details of a specific transaction.

Get User

Tool to retrieve detailed information about a specific Ramp user by their ID.

Get Users Deferred Status

Tool for fetching the status of a deferred user task.

Get Vendor Details

Tool for retrieving detailed information about a specific vendor.

Get Webhook

Tool to retrieve detailed information about a specific webhook subscription by ID.

Issue Virtual Card

Tool for issuing virtual cards to users instantly.

List Accounting Inventory Item Options

Tool to list accounting inventory item options from Ramp.

List Accounting Tax Rates

Tool to list tax rates from Ramp's accounting integration.

List All Cards

Tool for listing all cards across the organization with optional filters.

List Departments

Tool for listing all departments in the organization.

List Memos

Tool for listing memos associated with transactions in your Ramp organization.

List Reimbursements

Tool for listing reimbursements with comprehensive filtering options.

List Statements

Tool for listing all statements with filtering options.

List Users

Tool for listing users in your Ramp organization with flexible filtering.

List Vendors

Tool for listing vendors with their spending information.

List Vendor Bank Accounts

Tool for listing bank accounts associated with a specific vendor.

List Vendor Contacts

Tool for listing contacts associated with a specific vendor.

List Vendor Credits

Tool to list all vendor credits for all vendors of a business.

List Webhooks

Tool for listing all webhook subscriptions for the organization.

Options for Custom Accounting Field

Tool for listing options for a given accounting field.

Update Accounting Connection

Tool to update an accounting connection's settings.

Update Card

Tool to update a card's properties including owner, display name, and spending restrictions.

Update Custom Field Option

Tool to update a custom accounting field option.

Update General Ledger Account

Tool to update a general ledger account in Ramp.

Update Inventory Item Field

Tool to update the inventory item accounting field for a Ramp connection.

Upload Accounting GL Accounts

Tool to batch upload general ledger accounts to Ramp.

Create Accounting Connection

Tool to register a new API-based accounting connection between Ramp and an accounting provider.

Upload Accounting Vendors

Tool to batch upload vendors to Ramp for coding transactions, bills, and purchase orders.

Upload Inventory Item Options

Tool to upload inventory item options for an active inventory item accounting field.

Create Physical Card

Tool to create a physical card asynchronously.

Reactivate Accounting Connection

Tool to reactivate a previously unlinked accounting connection by changing its status back to linked.

Reactivate User

Tool to reactivate a suspended user in your Ramp organization.

Submit Reimbursement Receipt

Tool to upload a receipt for a reimbursement.

Suspend Card

Tool to suspend a card by creating an async task that locks the card from use.

Terminate Card

Tool to permanently terminate a Ramp card.

Update Custom Accounting Field

Tool to update a custom accounting field.

Update Accounting Inventory Item Option

Tool to update an inventory item option in Ramp's accounting system.

Update Accounting Tax Code

Tool to update tax code accounting field.

Update Accounting Tax Code Option

Tool to update a tax code option in Ramp.

Update Accounting Tax Rate

Tool to update an accounting tax rate in Ramp.

Update Accounting Vendor

Tool to update an accounting vendor in Ramp.

Update Card Spending Limit

Tool for updating spending limits on a card.

Update Department

Tool for updating an existing department in your Ramp organization.

Update Spending Limit

Tool to update a spending limit in Ramp.

Update User

Tool to update an existing user in your Ramp organization.

Upload New Options for Custom Accounting Field

Tool for uploading new options for a given accounting field.

Upload Tax Code Options

Tool to upload tax code options to Ramp.

Upload Accounting Tax Rates

Tool to batch upload tax rates to Ramp.

FRAMEWORKS

How to build Ramp MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Ramp MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Ramp MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Ramp MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Ramp MCP with Claude Cowork

Codex logo

Codex

Use Ramp MCP with Codex

OpenClaw logo

OpenClaw

Use Ramp MCP with OpenClaw

Hermes logo

Hermes

Use Ramp MCP with Hermes

CLI logo

CLI

Use Ramp MCP with CLI

Google ADK logo

Google ADK

Use Ramp MCP with Google ADK

LangChain logo

LangChain

Use Ramp MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Ramp MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Ramp MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Ramp MCP with LlamaIndex

CrewAI logo

CrewAI

Use Ramp MCP with CrewAI

FAQ

Frequently asked questions

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

Yes, you can. Pydantic 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 Ramp tools.

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

Start with Ramp.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Ramp tool your agent needs.Free to start.

Start building
Customer stories

Teams ship real agents on Composio

GET STARTED FOR FREEBOOK A DEMO
agent.aiZoomLettaGleanHubSpotAWSWabi

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