Openfigi

An unofficial TypeScript SDK and MCP server for OpenFIGI, providing type - safe financial instrument identification API integration, supporting queries for identifiers such as ISIN, CUSIP, SEDOL, and can be integrated with AI assistants such as Claude.

Finance Research and data #Financial data #Tool identification #AI integration #TypeScript .TypeScript

rating : 2 points

downloads : 6.4K

update time : 2026-03-13

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What is the OpenFIGI MCP Server?

The OpenFIGI MCP Server is a server based on the Model Context Protocol (MCP), specifically designed for financial instrument identification. It allows AI assistants (such as Claude) to query detailed information about financial instruments through a standardized interface, including FIGI (Financial Instrument Global Identifier), company name, exchange information, etc. This server integrates the OpenFIGI API, a free financial instrument identification service provided by Bloomberg.

How to use the OpenFIGI MCP Server?

You can use the OpenFIGI MCP Server by configuring Claude Desktop or using the Vercel AI SDK. The basic steps include: 1) Install the MCP server, 2) Configure the API key (optional, to increase the request limit), 3) Add the server settings to the AI assistant configuration, 4) Start querying financial instrument information.

Applicable scenarios

The OpenFIGI MCP Server is particularly suitable for: financial analysts who need to quickly find financial instrument information; investment researchers who need to process multiple financial identifiers in batches; AI assistants that need to provide accurate data support for financial-related questions; and any scenario that requires the standardized conversion of different financial identifier systems (such as ISIN, CUSIP, SEDOL).

Main features

Automatic identifier detection

Intelligently parse text and CSV files, automatically identify various financial identifier types such as ISIN, CUSIP, SEDOL, Bloomberg ID, and stock codes, without the need to manually specify the identifier type.

Batch operation support

Supports processing up to 100 financial identifiers at once, greatly improving processing efficiency, especially suitable for batch data conversion and analysis tasks.

Stock code + exchange format

Supports common stock code formats, such as 'AAPL US' (Apple Inc., US market), 'VOD LN' (Vodafone, London Stock Exchange), 'ABLI SS' (AB Tetra Pak, Stockholm Stock Exchange).

Type-safe interface

Developed based on TypeScript, providing complete type definitions to ensure type safety during development and use, reducing errors.

Complete API coverage

Fully supports all functions of the OpenFIGI API, including search, mapping, batch query, etc., providing the same capabilities as the official API.

Standard MCP protocol integration

Fully complies with the Model Context Protocol standard and can be seamlessly integrated with any AI assistant that supports MCP, including Claude Desktop and other compatible platforms.

Advantages

Completely free to use, based on the free OpenFIGI API service

Automatic identifier detection reduces the workload of manual input by users

Batch processing capability greatly improves work efficiency

Type-safe TypeScript implementation, excellent development experience

Standard MCP protocol, wide compatibility

Active community, continuous updates and maintenance

Limitations

The free API has request frequency limits (the limit is stricter without an API key)

Requires an internet connection to use the API service

Some niche financial instruments may not be found in the OpenFIGI database

The MCP protocol is relatively new, and some AI assistants may not fully support it

How to use

Install the MCP server

Install the OpenFIGI MCP server package via npm or npx. If you have already installed the Node.js environment, you can directly use npx to run it without global installation.

Get an API key (optional)

Visit the OpenFIGI official website to register and obtain an API key. Having an API key can increase the request frequency limit, which is very useful for frequent use or batch processing.

Configure Claude Desktop

Add the settings of the OpenFIGI MCP server to the configuration file of Claude Desktop. You need to specify the command, parameters, and environment variables (including the API key).

Restart Claude Desktop

After saving the configuration file, restart the Claude Desktop application for the configuration to take effect. After restarting, Claude will be able to use the functions of the OpenFIGI MCP server.

Start using

Now you can directly query financial instrument information when chatting with Claude. Claude will automatically call the OpenFIGI MCP server to obtain relevant data.

Usage examples

Single financial instrument query

When you need to find detailed information about a specific company or financial instrument, you can directly provide its identifier for querying.

Batch identifier conversion

When you have a batch of ISINs, CUSIPs, or other identifiers that need to be converted to the FIGI standard format, you can use the batch processing function.

Identifier extraction from text

When you have a piece of text containing multiple financial identifiers, the server can automatically identify and query all identifiers.

Stock code + exchange query

Use the common stock code plus exchange format to query financial instruments, which is a standard practice in the financial industry.