Mercury (BYOK)
Read your Mercury business bank accounts, balances, transactions, statements, cards and invoices with BYOK
Look up listed companies by name, CIK, CUSIP or ISIN and list exchanges, sectors, industries and countries from Financial Modeling Prep with your own API key
Unify Dynamics LLC
Real questions, and the tools your agent calls to answer them.
search_company_by_namesearch_company_by_ciksearch_company_by_cusipsearch_company_by_isinsearch_exchange_variantslist_cik_directoryFinancial Modeling Prep Reference (BYOK) lets an AI assistant read your own Financial Modeling Prep Reference data through the Financial Modeling Prep Reference API with a key you supply (API key). Read-only: 11 tools (search_company_by_name, search_company_by_cik, search_company_by_cusip, search_company_by_isin, search_exchange_variants, list_cik_directory, list_symbol_changes, list_available_exchanges, list_available_sectors, list_available_industries, list_available_countries). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to financialmodelingprep.com. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Financial Modeling Prep Reference. Financial Modeling Prep Reference and its logos are trademarks of their owners and are used only to say which service the connector works with.
Sources: Live from the Financial Modeling Prep Reference API (financialmodelingprep.com) with a BYOK key; documentation: https://site.financialmodelingprep.com/developer/docs/stable. Endpoints checked against that documentation on 2026-10-16.
The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.
11 tools, grouped by job. Every one is read-only or compute-only.
https://byok-fmp-reference.connectorbay.com/mcpThree ways in, the same 11 tools.
https://byok-fmp-reference.connectorbay.com/mcpPOST https://byok-fmp-reference.connectorbay.com/v1/tools/<tool>https://connectorbay.com/openai/byok-fmp-reference.jsonhttps://connectorbay.com/v1/chat/completions · how it worksX-Upstream-Key header (get one at site.financialmodelingprep.com).Financial Modeling Prep Reference (BYOK) lets an AI assistant read your own Financial Modeling Prep Reference data through the Financial Modeling… It is a hosted MCP server with 11 tools such as Search company by name, Search company by cik, Search company by cusip, Search company by isin, Search exchange variants, List cik directory, published by Unify Dynamics LLC. It is independent and not affiliated with Financial Modeling Prep Reference.
Add the MCP endpoint https://byok-fmp-reference.connectorbay.com/mcp to your client's MCP, connector or integration settings (streamable HTTP, no OAuth). For REST, POST JSON to https://byok-fmp-reference.connectorbay.com/v1/tools/<tool>; the OpenAPI description is at /openapi.json. For OpenAI function calling, load https://connectorbay.com/openai/byok-fmp-reference.json.
Yes: this is a bring-your-own-key connector. Create a API key at https://site.financialmodelingprep.com/developer/docs/dashboard and send it in the X-Upstream-Key header. ConnectorBay uses it for that one call only and never stores, logs or caches it.
Yes. Every tool reads or computes. Nothing is created, changed, sent, paid or deleted in your account.
Yes. It is free to use within the published rate limits; an optional Pro key raises them. There is no account to create.
Read your Mercury business bank accounts, balances, transactions, statements, cards and invoices with BYOK
Read invoices, contacts, accounts, payments, expenses, journal entries and financial statements from the accounting system linked to your Merge account, with your own keys
Read crypto asset prices, market caps, all-time highs, ROI, time series, exchanges and trading markets from Messari with BYOK
Read live and historical precious metal and forex rates, conversions, OHLC prices and gold carat prices with your own MetalpriceAPI key
Read spot prices of gold, silver, platinum, palladium and industrial metals, bullion authority fixes and currency rates from Metals.Dev with your own API key
Read your Metronome customers, invoices, billable metrics, products and contracts for usage-based billing with your own API token
https://byok-fmp-reference.connectorbay.com/mcpPOST https://byok-fmp-reference.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-fmp-reference.connectorbay.com/openapi.jsonX-Upstream-Key header of every request (never stored, logged or cached)https://byok-fmp-reference.connectorbay.com/health · Tool schemas: https://byok-fmp-reference.connectorbay.com/tools.jsonFinancial Modeling Prep Reference (BYOK) lets an AI assistant read your own Financial Modeling Prep Reference data through the Financial Modeling Prep Reference API with a key you supply (API key). Read-only: 11 tools (search_company_by_name, search_company_by_cik, search_company_by_cusip, search_company_by_isin, search_exchange_variants, list_cik_directory, list_symbol_changes, list_available_exchanges, list_available_sectors, list_available_industries, list_available_countries). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to financialmodelingprep.com. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Financial Modeling Prep Reference. Financial Modeling Prep Reference and its logos are trademarks of their owners and are used only to say which service the connector works with.
Ask your assistant things like:
search_company_by_name: Search listed companies and securities by company name; returns matching symbols with the name and exchange. Some endpoints may need a paid plan.search_company_by_cik: Find the listed symbol and company name for a SEC Central Index Key (CIK). Some endpoints may need a paid plan.search_company_by_cusip: Find the listed symbol and company name for a CUSIP security identifier. Some endpoints may need a paid plan.search_company_by_isin: Find the listed symbol and company name for an ISIN security identifier. Some endpoints may need a paid plan.search_exchange_variants: List the listings of one company across exchanges for a symbol. Some endpoints may need a paid plan.list_cik_directory: Page through the directory of SEC CIK numbers and the company names attached to them. Some endpoints may need a paid plan.list_symbol_changes: List recent ticker symbol changes, with old and new symbols. Some endpoints may need a paid plan.list_available_exchanges: List the stock exchanges the data service covers. Some endpoints may need a paid plan.list_available_sectors: List the sector names used to classify companies. Some endpoints may need a paid plan.list_available_industries: List the industry names used to classify companies. Some endpoints may need a paid plan.list_available_countries: List the countries with listed companies in the data service. Some endpoints may need a paid plan.You bring your own Financial Modeling Prep Reference API key (https://site.financialmodelingprep.com/developer/docs/dashboard). Your assistant sends it in the X-Upstream-Key header with each request. ConnectorBay uses it for that one call only: it is never stored, logged or cached, never shown in an answer, and it is only sent to financialmodelingprep.com over https, with no redirects followed. Create a key with the fewest permissions the tools need (read-only if the provider offers it), and revoke it at the provider whenever you like.
Live from the Financial Modeling Prep Reference API (financialmodelingprep.com) with a BYOK key; documentation: https://site.financialmodelingprep.com/developer/docs/stable. Endpoints checked against that documentation on 2026-10-16.
Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Financial Modeling Prep Reference. Financial Modeling Prep Reference and its logos are trademarks of their owners and are used only to say which service the connector works with. It is read-only: it never creates, changes, sends or deletes anything in your Financial Modeling Prep Reference account.
Built for: Worldwide. Languages: English.
Effective 24 October 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.
What Financial Modeling Prep Reference (BYOK) is. Financial Modeling Prep Reference (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own Financial Modeling Prep Reference data: Look up listed companies by name, CIK, CUSIP or ISIN and list exchanges, sectors, industries and countries from Financial Modeling Prep with your own API key. You bring your own Financial Modeling Prep Reference API key; the assistant sends it to us with each request.
BYOK key. The key you supply is used to make the one Financial Modeling Prep Reference call you asked for. Our application does not store it, write it to a log, put it in a cache, or share it. It is sent only to financialmodelingprep.com, over https, and is removed from any text we return to you or your assistant. We do not follow redirects with your key. If Financial Modeling Prep Reference rejects it, we say so without repeating it.
What we receive. The arguments of each tool call, the BYOK key (for that call only), the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant) and standard server logs. What Financial Modeling Prep Reference receives. The request we make on your behalf, including the key and the arguments, under Financial Modeling Prep Reference's own terms and privacy policy. Financial Modeling Prep Reference acts at your direction and is the only recipient of the data of your request besides our hosting provider.
What we return. The answer Financial Modeling Prep Reference gives for your request, trimmed to the fields the tool documents. We do not keep it: it is returned to your assistant and not stored, cached or used to train anything.
What we do not do. We do not build a profile, sell or share personal information, or keep your Financial Modeling Prep Reference data. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting access logs (IP addresses, request paths and status codes) are kept for up to 30 days for security and abuse prevention; our application adds no request headers or bodies to them.
Sub-processors. Financial Modeling Prep Reference (the API you call with a BYOK key, at your direction). Hosting: Vercel (United States regions).
Your rights. Because we store no personal data beyond short-lived logs, requests to access, correct or delete data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. Revoke your key at Financial Modeling Prep Reference at any time to end all access.
Children. Financial Modeling Prep Reference (BYOK) is a general-audience service operated by the adult using the assistant, under Financial Modeling Prep Reference's own age rules.
Changes. We will post changes here with a new effective date.
Effective 24 October 2026. These terms govern use of the Financial Modeling Prep Reference (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").
Email agent@connectorbay.com. We answer within two business days.
https://byok-fmp-reference.connectorbay.com/mcphttps://byok-fmp-reference.connectorbay.com/openapi.jsonWhen you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Financial Modeling Prep Reference (BYOK) never asks for them.