# How to integrate Navan MCP with Atomic Agent

```json
{
  "title": "How to integrate Navan MCP with Atomic Agent",
  "toolkit": "Navan",
  "toolkit_slug": "navan",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/navan/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/navan/framework/atomic-agent.md",
  "updated_at": "2026-11-12T05:35:28.632Z"
}
```

## Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,700+ apps through Composio, including Navan.
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 Navan account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate Navan with

- [ChatGPT](https://composio.dev/toolkits/navan/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/navan/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/navan/framework/hermes-agent)

## TL;DR

### How Atomic Agent connects to Navan
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 Navan to Atomic Agent

### Connect Navan 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 Navan. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your Navan 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 Navan MCP server, and what's possible with it?

The Navan MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Navan account. It provides structured and secure access to business travel, booking, expense, transaction, user, receipt, audit, and custom-field data, so your agent can review travel and expenses, retrieve receipts, update transactions, import trips, and inspect company activity on your behalf.
- Travel and booking management: Have your agent review company bookings with trip, status, type, and time filters, or import an external trip with its flight, hotel, rail, car, or black-car bookings.
- Expense and transaction tracking: Let the agent find card, manual, connect, repayment, adjustment, fee, rebate, dispute, and statement payment records, then update supported accounting, HR, and custom-field values.
- Receipt retrieval: Direct your agent to find transaction receipts and retrieve receipt, electronic-receipt, or missing-receipt affidavit links for expense records.
- Employee and company data: Instruct your agent to look up Expense users and TMC users, review custom-field definitions, and check the status of custom-field option changes.
- Audit and transaction activity: Have your agent review company audit events and inspect the activity history for individual transactions.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `NAVAN_DOWNLOAD_TRANSACTION_RECEIPT` | Download Transaction Receipt | Download a transaction receipt, electronic receipt, or missing-receipt affidavit. Navan redirects to a five-minute presigned URL; the redirect is followed immediately and the final PDF, JPEG, or PNG is returned as a file. |
| `NAVAN_GET_CUSTOM_FIELD` | Get Custom Field | Get one company Navan Expense custom-field definition by its provider field name. Use the custom-field name, such as customField1 or projects, rather than the field's display label. |
| `NAVAN_GET_CUSTOM_FIELD_JOB` | Get Custom Field Job | Get the current status, operation counts, timestamps, and up to 50 errors for an asynchronous Navan custom-field option job. |
| `NAVAN_GET_EXPENSE_USER` | Get Expense User | Get one eligible-company Navan Expense user by ID. Site-admin users are not returned and produce a not-found response. |
| `NAVAN_GET_TRANSACTION` | Get Transaction | Get one Navan Expense transaction by its ID for an ad-hoc lookup. The response preserves the concrete _type discriminator and provider-specific fields. Use the generic bulk-by-ID transaction action instead of repeatedly calling this action for a list of IDs. |
| `NAVAN_GET_TRANSACTION_RECEIPT_LINKS` | Get Transaction Receipt Links | Return seven-day presigned receipt, electronic-receipt, and affidavit URLs for one Navan Expense transaction. This endpoint returns JSON links and does not follow the separate receipt-download redirect. |
| `NAVAN_IMPORT_TRIP` | Import Trip | Import an external trip and any supplied flight, hotel, rail, car, or black-car bookings into Navan. |
| `NAVAN_LIST_ADJUSTMENTS` | List Adjustments | Return one cursor page of credit and debit adjustments for a documented date search and optional filters. Navan documents at least one single-date filter or matching date range for normal search. Dates are YYYY-MM-DD UTC, cannot precede the first day of the month two months before the current month, and ranges may not exceed 93 days. |
| `NAVAN_LIST_AUDIT_LOGS` | List Audit Logs | Return one cursor page of ERP and accounting-settings audit events for eligible companies within a required RFC3339 window of at most 31 days. |
| `NAVAN_LIST_BOOKINGS` | List Bookings | Return one page of company booking rows filtered by booking, trip, status, type, or epoch-second time ranges, optionally including transactions. |
| `NAVAN_LIST_CARD_TRANSACTIONS` | List Card Transactions | Return one cursor page of Navan card transactions for a documented date search and optional transaction filters. At least one date filter is required; dates use YYYY-MM-DD UTC, the earliest allowed date is the first day of the month two months before the current month, and ranges may span at most 93 days. |
| `NAVAN_LIST_CONNECT_TRANSACTIONS` | List Connect Transactions | Return one cursor page of external card-integration transactions. At least one single-date or date-range filter is required; dates use YYYY-MM-DD UTC, must be within Navan's documented lookback, and ranges cannot exceed 93 days. |
| `NAVAN_LIST_CUSTOM_FIELDS` | List Custom Fields | List all Navan Expense custom-field definitions for the company. |
| `NAVAN_LIST_DAILY_REBATES` | List Daily Rebates | Return one cursor page of daily rebates for a required documented date search and optional transaction filters. |
| `NAVAN_LIST_DISPUTES` | List Disputes | Return one cursor page of Navan disputes, including provisional credits and reversals for EUR and GBP, for a required documented date search and optional transaction filters. |
| `NAVAN_LIST_EXPENSE_USERS` | List Expense Users | Return one cursor page of company Expense users filtered by text, enabled state, guest state, or administrator role. This endpoint is available only to eligible companies and excludes site-admin users. |
| `NAVAN_LIST_FEES` | List Fees | Return one cursor page of direct-reimbursement, foreign-exchange, and platform fees. Navan requires at least one single-date filter or date-range bound; dates are UTC YYYY-MM-DD, cannot precede the first day of the month two months before the current month, and complete ranges may not exceed 93 days. |
| `NAVAN_LIST_MANUAL_TRANSACTIONS` | List Manual Transactions | Return one cursor page of manual expenses, reimbursements, and payroll transactions. Navan requires at least one single-date filter or matching date range for normal search; dates are UTC YYYY-MM-DD, cannot precede the first day of the month two months before the current month, and ranges may not exceed 93 days. Parameter combinations remain permissive so Navan can apply its documented contract. |
| `NAVAN_LIST_REPAYMENTS` | List Repayments | Return one cursor page of user repayments for a required documented date search and optional transaction filters. |
| `NAVAN_LIST_STATEMENT_PAYMENTS` | List Statement Payments | Return one cursor page of statement payments and statement payment refunds for a required documented date search. Use activity_type to distinguish Statement Payment from Statement Payment Refund records. |
| `NAVAN_LIST_TMC_USERS` | List TMC Users | Return one documented page of TMC company users. |
| `NAVAN_LIST_TRANSACTION_ACTIVITIES` | List Transaction Activities | Return one cursor page of activity history for a single Navan Expense transaction, newest first. The transaction must belong to the connected company; optionally filter to public or administrator-private activity. This endpoint is available only to eligible companies. |
| `NAVAN_LIST_TRANSACTION_RECEIPTS` | List Transaction Receipts | Return one cursor page of receipt links for selected Navan transaction families and a documented date search. Transactions without receipts are included with null links; returned presigned URLs should not be cached. |
| `NAVAN_LIST_TRANSACTIONS` | List Transactions | Return one cursor page across selected Navan transaction families, or fetch a batch using repeated transaction IDs. Normal search requires transaction types and at least one documented date filter. Bulk-ID mode does not require type or date; Navan does not specify that they must be absent, so combinations are passed through. |
| `NAVAN_SUBMIT_CUSTOM_FIELD_OPTION_OPERATIONS` | Submit Custom Field Option Operations | Submit 1 to 5,000 CREATE, UPDATE, UPSERT, or DELETE operations for one Navan custom field as an asynchronous job. This action can delete options; poll the returned job ID to determine completion. |
| `NAVAN_UPDATE_TRANSACTIONS` | Update Transactions | Update supported ERP, accounting, HR, and custom-field values for 1 to 100 Navan transactions. Navan processes each item independently, so a successful HTTP response can contain both successful and failed item outcomes. Updated transaction data may take up to four hours to appear in GET results. |

## 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/platform) for the current limits that apply to your connection.

## Complete Code

None listed.

## Conclusion

### Use Navan from Atomic Agent
With your account connected, ask Atomic Agent to work with Navan 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 Navan MCP Agent with another framework

- [ChatGPT](https://composio.dev/toolkits/navan/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/navan/framework/claude-cowork)
- [Hermes](https://composio.dev/toolkits/navan/framework/hermes-agent)

## Related Toolkits

- [Google Calendar](https://composio.dev/toolkits/googlecalendar) - Google Calendar is a time management service for scheduling meetings, events, and reminders. It streamlines personal and team organization with integrated notifications and sharing options.
- [Apaleo](https://composio.dev/toolkits/apaleo) - Apaleo is a cloud-based property management platform for hospitality businesses. It centralizes reservations, billing, and daily operations for smoother hotel management.
- [Appointo](https://composio.dev/toolkits/appointo) - Appointo is an appointment booking platform for Shopify stores. It lets businesses add online scheduling to their websites with zero coding.
- [Bart](https://composio.dev/toolkits/bart) - Bart is the Bay Area Rapid Transit system, providing fast public transportation across the San Francisco Bay Area. It helps commuters and travelers get real-time schedule info, plan routes, and stay updated on service changes.
- [Blue Pillow Hotels & Stays](https://composio.dev/toolkits/bluepillow) - Blue Pillow Hotels & Stays is a hotel and stay discovery platform offering live offers, recommendations, and booking handoff. It helps surface and compare real-time deals and validate bookings for smoother reservations.
- [Bookingmood](https://composio.dev/toolkits/bookingmood) - Bookingmood is commission-free booking software for rental businesses. It lets you manage reservations and sync bookings directly on your website.
- [Booqable](https://composio.dev/toolkits/booqable) - Booqable is a rental software platform for managing inventory, bookings, and reservations. It helps businesses streamline rentals and keep track of every item with ease.
- [Cal](https://composio.dev/toolkits/cal) - Cal is a meeting scheduling platform that offers shareable booking links and real-time calendar syncing. It streamlines the process of finding mutual availability to make scheduling effortless.
- [Calendarhero](https://composio.dev/toolkits/calendarhero) - Calendarhero is a powerful scheduling platform that streamlines your calendar management across multiple services. It helps you efficiently schedule, reschedule, and organize meetings without the back-and-forth.
- [Calendly](https://composio.dev/toolkits/calendly) - Calendly is an appointment scheduling tool that automates meeting invitations, availability checks, and reminders. It helps individuals and teams avoid endless email back-and-forth when booking meetings.
- [Calendly MCP](https://composio.dev/toolkits/calendly_mcp) - Calendly is an appointment scheduling platform that manages event types, availability, and invites. Use it to automate booking, reduce back-and-forth, and surface open times quickly.
- [Check Cherry](https://composio.dev/toolkits/check_cherry) - Check Cherry is a business management platform for photography and event service companies. It helps teams manage leads, bookings, appointments, offerings, payments, and workflows in one place.
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- [Etermin](https://composio.dev/toolkits/etermin) - eTermin is an online appointment scheduling platform for businesses to manage bookings. It streamlines client appointments, saving time and reducing scheduling conflicts.
- [Evenium](https://composio.dev/toolkits/evenium) - Evenium is an all-in-one platform for managing professional events, from planning to analysis. It helps teams simplify event logistics, boost engagement, and track every detail in one place.
- [Eventee](https://composio.dev/toolkits/eventee) - Eventee is a user-friendly event management platform for mobile and web. It boosts attendee engagement for in-person, virtual, and hybrid events.
- [Eventzilla](https://composio.dev/toolkits/eventzilla) - Eventzilla is an event management platform for creating, promoting, and running events. It streamlines ticketing, registration, and attendee coordination for organizers.
- [GoTable](https://composio.dev/toolkits/go_table) - GoTable is a restaurant management REST API for reservations, tables, guests, offers, availability, and webhooks. Use it to programmatically manage bookings, guest data, offers, and table availability.
- [Humanitix](https://composio.dev/toolkits/humanitix) - Humanitix is a not-for-profit ticketing platform that donates 100% of profits to charity. It empowers event organizers to make social impact with every ticket sold.
- [Ignav Flights](https://composio.dev/toolkits/ignav_flights) - Ignav Flights is a flight search API for airports, fares, itineraries, and booking links. It helps apps compare routes and prices fast, so travelers can find practical options sooner.

## Frequently Asked Questions

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

With a standalone Navan MCP server, the agents and LLMs can only access a fixed set of Navan tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Navan 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 Navan tools.

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

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

---
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