# How to integrate Finmei MCP with Atomic Agent

```json
{
  "title": "How to integrate Finmei MCP with Atomic Agent",
  "toolkit": "Finmei",
  "toolkit_slug": "finmei",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/finmei/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/finmei/framework/atomic-agent.md",
  "updated_at": "2026-08-11T13:09:37.469Z"
}
```

## Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Finmei.
This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Finmei account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate Finmei with

- [OpenAI Agents SDK](https://composio.dev/toolkits/finmei/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/finmei/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/finmei/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/finmei/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/finmei/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/finmei/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/finmei/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/finmei/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/finmei/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/finmei/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/finmei/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/finmei/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/finmei/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/finmei/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/finmei/framework/autogen)

## TL;DR

### How Atomic Agent connects to Finmei
Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.
Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

## Connect Finmei to Atomic Agent

### Connect Finmei to Atomic Agent
- Sign up or sign in to the [Composio dashboard](https://dashboard.composio.dev/?cta_placement=atomic-agent-api-key). Copy your API key.
- In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
- Ask Atomic Agent to do something in Finmei. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your Finmei account, then return to Atomic Agent to continue.
### Headless setup
Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

```bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY
```

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

The Finmei MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Finmei account. It provides structured and secure access to your invoicing and expense data, so your agent can perform actions like creating invoices, managing customers, tracking payments, and handling products on your behalf.
- Smart invoice creation and management: Ask your agent to generate new invoices, list all existing invoices, or delete outdated ones—helping you stay on top of billing effortlessly.
- Customer record management: Let your agent list all your customers, search for specific records, or delete customers no longer in your system, streamlining client data administration.
- Payment tracking and retrieval: Retrieve payment details, verify payment statuses, or remove obsolete payments to keep your financial records accurate and up to date.
- Product catalog maintenance: Easily fetch detailed product information or remove products from your catalog as your offerings evolve, all via agent commands.
- Multi-currency support: Ask your agent to list all available currencies before creating invoices, ensuring transactions are processed in the correct denomination for your business needs.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `FINMEI_CREATE_EXPENSE` | Create Expense | Tool to create a new expense with file upload (receipt or invoice). Use when you need to record an expense with supporting documentation. Requires multipart/form-data submission with file, date, total, currency, and seller information. |
| `FINMEI_CREATE_INVOICE` | Create Invoice | Creates a new invoice in Finmei with buyer information and line items. Use this when you need to generate an invoice for a customer. You can specify: - Buyer details (person or company) - Products/services with quantities and prices - Invoice type (regular, VAT, preliminary, credit) - Currency, dates, and custom notes Example: "Create an invoice for Tech Solutions Inc with 3 months of support services at $99.99/month" |
| `FINMEI_DELETE_CUSTOMER` | Delete Customer | Tool to delete a specific customer by their ID. Use after confirming the correct customer_id to remove the record. |
| `FINMEI_DELETE_INVOICE` | Delete Invoice | Tool to delete an invoice. Use when you need to remove an existing invoice by its ID. |
| `FINMEI_DELETE_PAYMENT` | Delete Payment | Delete a payment record by its unique identifier. This action permanently removes the payment from the system. Returns success even if the payment doesn't exist (idempotent operation). Use this when you need to remove incorrect, duplicate, or obsolete payment records. |
| `FINMEI_DELETE_PRODUCT` | Delete Product | Deletes a product from the Finmei catalog by its unique identifier. This operation is idempotent - calling it multiple times with the same product_id will return success. The tool attempts multiple endpoint patterns to maximize compatibility across different Finmei API deployments. Use this when you need to: - Permanently remove a product from the catalog - Clean up discontinued or obsolete products - Remove test or duplicate product entries Note: If all API endpoints return 404, the action will succeed with a message explaining that the product doesn't exist or the API doesn't support deletion. This follows idempotent DELETE semantics. |
| `FINMEI_DOWNLOAD_EXPENSE_FILE` | Download Expense File | Tool to download the file associated with an expense. Returns the expense document file (PDF or image). Use when you need to retrieve the actual file content for an expense. |
| `FINMEI_DOWNLOAD_INVOICE_PDF` | Download Invoice PDF | Tool to download an invoice as a PDF file. Use when you need to retrieve the PDF version of an invoice. |
| `FINMEI_GET_EXPENSE` | Get Expense by ID | Tool to retrieve a single expense by its ID. Use when you need to get details about a specific expense including date, total, currency, and seller information. |
| `FINMEI_GET_INVOICE` | Get Invoice by ID | Tool to retrieve a single invoice by its ID. Use when you need full invoice details including buyer, seller, items, amounts, and payment options. |
| `FINMEI_GET_PAYMENT` | Get Payment | Tool to retrieve details of a specific payment by its ID. Use after creating a payment or when you need to confirm payment details. |
| `FINMEI_GET_PRODUCT` | Get Product by ID | Tool to retrieve a product by its ID. Use when you need detailed information about a single product. |
| `FINMEI_GET_PROFILE` | Get Profile | Tool to retrieve main information about the business to which the API token is assigned. Use when needing business ID, title, type, address, VAT code, company name, or company code. |
| `FINMEI_LIST_CURRENCIES` | List Currencies | Tool to list all currencies supported by Finmei. Use when you need to retrieve available currency codes before creating transactions. |
| `FINMEI_LIST_CUSTOMERS` | List Customers | Tool to list all customers with optional filters and pagination. Use when needing to browse or search customer records. |
| `FINMEI_LIST_EXPENSES` | List Expenses | Tool to list all expenses for the business. Use when you need a paginated list of expenses with metadata. |
| `FINMEI_LIST_INVOICES` | List Invoices | Tool to list invoices. Use when you need a paginated list of invoices with basic details. |
| `FINMEI_LIST_PAYMENTS` | List Payments | Tool to retrieve a list of payments. Use when you need to view past payment records with optional filters and pagination. |
| `FINMEI_LIST_PRODUCTS` | List Products | Tool to retrieve a list of products with optional filters and pagination. Use when you need to browse or filter the product catalog. |
| `FINMEI_UPDATE_CUSTOMER` | Update Customer | Tool to update an existing customer's details. Use after confirming the customer ID to modify their information. |
| `FINMEI_UPDATE_EXPENSE` | Update Expense | Tool to update an existing expense's fields including date, total, currency, and seller. Use when you need to modify expense details. To update the invoice/bill file, use the Update Expense File endpoint instead. |
| `FINMEI_UPDATE_EXPENSE_FILE` | Update Expense File | Updates the file attachment of an existing expense in Finmei. Use this action when you need to attach or replace a receipt/invoice file for an expense. This endpoint is specifically for updating the file only - use the Update Expense action for updating other expense fields like amount, date, or description. The file is uploaded using multipart/form-data content type and typically should be a PDF or image file of the bill/receipt. |
| `FINMEI_UPDATE_INVOICE` | Update Invoice | Tool to update an existing invoice in Finmei. Use when you need to modify invoice details such as buyer information, products, dates, or currency. |
| `FINMEI_UPDATE_PRODUCT` | Update Product | Updates an existing product in the Finmei product catalog. Use this action when you need to modify product details such as name, description, price, or currency. You must provide the product ID and at least one field to update. The action returns the complete updated product details. Prerequisites: - The product must already exist in the system (obtain product_id from List Products action) - At least one update field (name, description, price, or currency) must be provided Note: This action will fail if the product doesn't exist or if the Finmei API instance doesn't support product management endpoints. |

## Supported Triggers

None listed.

## Troubleshooting

### Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

### Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

### Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See [Composio pricing](/pricing) for the current limits that apply to your connection.

## Complete Code

None listed.

## Conclusion

### Use Finmei from Atomic Agent
With your account connected, ask Atomic Agent to work with Finmei in natural language. You can connect more apps through the same Composio integration as you need them.
Visit the [Atomic Agent website](https://atomicagent.io/?cta_placement=atomic-agent-site) or inspect the [Atomic Agent source code](https://github.com/AtomicBot-ai/atomic-agent?cta_placement=atomic-agent-repo).

## How to build Finmei MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/finmei/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/finmei/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/finmei/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/finmei/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/finmei/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/finmei/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/finmei/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/finmei/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/finmei/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/finmei/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/finmei/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/finmei/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/finmei/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/finmei/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/finmei/framework/autogen)

## Related Toolkits

- [Stripe](https://composio.dev/toolkits/stripe) - Stripe is a global online payments platform offering APIs for managing payments, customers, and subscriptions. Trusted by businesses for secure, efficient, and scalable payment processing worldwide.
- [44API](https://composio.dev/toolkits/44api) - 44API is an API service for validating VAT and tax identifiers and returning company details. Use it to verify business tax data and manage account IP whitelists quickly.
- [Airwallex](https://composio.dev/toolkits/airwallex) - Airwallex is a global financial platform providing business accounts, payments, payouts, FX, and cards. Built to simplify cross-border payments and streamline financial operations for businesses.
- [Aiwyn Tax MCP](https://composio.dev/toolkits/aiwyn_tax_mcp) - Aiwyn Tax MCP is a tax estimation service powered by Aiwyn's federal and state tax engine. It helps teams estimate tax outcomes without building tax calculation logic from scratch.
- [Alpaca](https://composio.dev/toolkits/alpaca) - Alpaca is a stock and crypto trading platform for commission-free trading, real-time market data, and algorithmic strategies. Use it to build brokerage apps, trading bots, and portfolio workflows with market connectivity.
- [Alpha vantage](https://composio.dev/toolkits/alpha_vantage) - Alpha Vantage is a financial data platform offering real-time and historical stock market APIs. Get instant, reliable access to equities, forex, and technical analysis data for smarter trading decisions.
- [Altoviz](https://composio.dev/toolkits/altoviz) - Altoviz is a cloud-based billing and invoicing platform for businesses. It streamlines online payments, expense tracking, and customizable invoice management.
- [Benzinga](https://composio.dev/toolkits/benzinga) - Benzinga provides real-time financial news and data APIs for market coverage. It helps you track breaking news and actionable market insights instantly.
- [Bigdata.com MCP](https://composio.dev/toolkits/bigdata_com_mcp) - Bigdata.com MCP provides grounded access to financial news, transcripts, filings, and entity intelligence. Ideal for building research workflows and generating timely market insights.
- [Billsby](https://composio.dev/toolkits/billsby) - Billsby is a subscription billing platform for managing customers, subscriptions, invoices, products, plans, usage counters, add-ons, and allowances. It helps SaaS and subscription teams automate billing operations without building complex billing logic from scratch.
- [Brex](https://composio.dev/toolkits/brex) - Brex provides corporate credit cards and spend management tailored for startups and tech businesses. It helps optimize company cash flow, streamline accounting, and accelerate business growth.
- [Cashfree Payments MCP](https://composio.dev/toolkits/cashfree_payments_mcp) - Cashfree Payments MCP is a merchant payments platform that handles collection, payouts, subscriptions, settlements, refunds, and identity verification. Simplifies merchant money lifecycle management with unified, API-driven workflows.
- [Chaser](https://composio.dev/toolkits/chaser) - Chaser is accounts receivable automation software that sends invoice reminders and helps businesses get paid faster. It streamlines the collections process to save time and improve cash flow.
- [Clarity AI MCP](https://composio.dev/toolkits/clarity_ai_mcp) - Clarity AI MCP is an MCP toolkit for simulating SFDR 2.0 fund classifications from a fund name, ISIN, or CUSIP. Use it to tap Clarity AI disclosure data and modeling without building custom sustainability-data workflows.
- [Clientary](https://composio.dev/toolkits/clientary) - Clientary is a platform for managing clients, invoices, projects, proposals, and more. It streamlines client work and saves you serious admin time.
- [Coinbase](https://composio.dev/toolkits/coinbase) - Coinbase is a platform for buying, selling, and storing cryptocurrency. It makes exchanging and managing crypto simple and secure for everyone.
- [Coinbase Wallet MCP](https://composio.dev/toolkits/coinbase_wallet_mcp) - Coinbase Wallet MCP is Coinbase's wallet service for interacting with onchain accounts. Use it to give agents secure, structured access to inspect wallets and request onchain actions.
- [Coinranking](https://composio.dev/toolkits/coinranking) - Coinranking is a comprehensive cryptocurrency market data platform offering access to real-time coin prices, market caps, and historical data. Get accurate, up-to-date stats for thousands of digital assets in one place.
- [Coupa](https://composio.dev/toolkits/coupa) - Coupa is a business spend management platform for procurement, invoicing, and expenses. It helps organizations streamline purchasing, control costs, and gain complete visibility over financial operations.
- [CurrencyScoop](https://composio.dev/toolkits/currencyscoop) - CurrencyScoop is a developer-friendly API for real-time and historical currency exchange rates. Easily access fiat and crypto data for smart, up-to-date financial applications.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Finmei MCP?

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

### Can I use Tool Router MCP with Atomic Agent?

Yes, you can. Atomic Agent 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 Finmei tools.

### Can I manage the permissions and scopes for Finmei while using Tool Router?

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

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