# How to integrate GLEIF API MCP with Atomic Agent

```json
{
  "title": "How to integrate GLEIF API MCP with Atomic Agent",
  "toolkit": "GLEIF API",
  "toolkit_slug": "gleif",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/gleif/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/gleif/framework/atomic-agent.md",
  "updated_at": "2026-09-16T05:33:49.082Z"
}
```

## 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 GLEIF API.
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 GLEIF API account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate GLEIF API with

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

## TL;DR

### How Atomic Agent connects to GLEIF API
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 GLEIF API to Atomic Agent

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

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

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `GLEIF_EXPORT_LEI_RECORDS` | Export LEI Records | Download up to 5,000 LEI records using the complete closed field-filter and sort surface as CSV, XLSX, JSON, or XML. |
| `GLEIF_GET_AUTOCOMPLETIONS` | Get Autocompletions | Return prefix-based GLEIF search suggestions from the provider's data collection, defaulting absent top-level metadata and links to empty objects. Highlighting is untrusted provider HTML and must be sanitized before rendering. |
| `GLEIF_GET_FUND_OR_BRANCH_RELATIONSHIP` | Get Fund or Branch Relationship | Get the complete relationship record linking an LEI to its fund manager, umbrella fund, master fund, or head office. |
| `GLEIF_GET_FUZZY_COMPLETIONS` | Get Fuzzy Completions | Find approximate GLEIF search matches for misspelled or incomplete input. Results are complete provider resources from the data-only collection when no top-level metadata or links are supplied; they are fragments, not full LEI records or proof of identity. |
| `GLEIF_GET_LEI_ISSUER_FOR_RECORD` | Get LEI Issuer for Record | Get the complete LEI-issuer reference resource associated with a specified LEI record. |
| `GLEIF_GET_LEI_RECORD` | Get LEI Record | Retrieve one LEI record with complete provider attributes, relationships, links, and Golden Copy metadata when its LEI is known. |
| `GLEIF_GET_PARENT_INFORMATION` | Get Parent Information | Get a direct or ultimate parent LEI plus complete relationship evidence, or the complete reporting exception when no parent is reported. |
| `GLEIF_GET_REFERENCE_ITEM` | Get Reference Item | Get one complete item from a selected GLEIF reference collection by its collection-specific identifier. |
| `GLEIF_GET_RELATED_LEI_RECORD` | Get Related LEI Record | Follow a selected associated-entity, managing-LOU, fund, or head-office link and return the complete related LEI record. |
| `GLEIF_LIST_CHILD_ENTITIES` | List Child Entities | List one page of complete direct or ultimate accounting-child LEI records. |
| `GLEIF_LIST_CHILD_RELATIONSHIPS` | List Child Relationships | List one page of complete direct or ultimate accounting-child relationship records for an LEI. |
| `GLEIF_LIST_FUND_OR_BRANCH_ENTITIES` | List Fund or Branch Entities | List one page of complete managed-fund, sub-fund, feeder-fund, or international-branch LEI records. |
| `GLEIF_LIST_FUND_OR_BRANCH_RELATIONSHIPS` | List Fund or Branch Relationships | List one page of complete fund-management, sub-fund, feeder-fund, or international-branch relationship records. |
| `GLEIF_LIST_LEI_FIELD_MODIFICATIONS` | List LEI Field Modifications | List one page of complete LEI, relationship, or reporting-exception field-history resources with optional type, XPath, and date filters. |
| `GLEIF_LIST_LEI_ISINS` | List LEI ISINs | Return one page of complete GLEIF-ANNA ISIN mappings for an issuer LEI. |
| `GLEIF_LIST_LEI_ISSUER_JURISDICTIONS` | List LEI Issuer Jurisdictions | List one page of complete jurisdiction resources for which an LEI issuer is accredited. |
| `GLEIF_LIST_REFERENCE_DATA` | List Reference Data | List one complete JSON:API page from a selected GLEIF field, code, or issuer reference collection. Use GLEIF_LIST_REGISTRATION_AGENTS for the unpaginated registration-agent collection. |
| `GLEIF_LIST_REGISTRATION_AGENTS` | List Registration Agents | List all GLEIF registration agents, optionally filtered by issuer LEI or registration-agent LEI. This provider operation returns the complete collection and does not support pagination. |
| `GLEIF_LIST_SUCCESSOR_ENTITIES` | List Successor Entities | List one page of all successor LEI records for an entity. Prefer this action over the deprecated GLEIF_GET_SUCCESSOR_ENTITY lookup. |
| `GLEIF_SEARCH_LEI_RECORDS` | Search LEI Records | Search LEI records with closed, field-aware filters and sorting, returning one complete JSON:API page. |

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

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

## 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.
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- [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.
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- [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 GLEIF API MCP?

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

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

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

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