DaData (BYOK) — connector documentation

MCP endpoint: https://byok-dadata.connectorbay.com/mcp
REST API: POST https://byok-dadata.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-dadata.connectorbay.com/openapi.json
Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
Authentication: your own DaData DaData API key, sent in the X-Upstream-Key header of every request (never stored, logged or cached)
Health: https://byok-dadata.connectorbay.com/health · Tool schemas: https://byok-dadata.connectorbay.com/tools.json
Publisher: Unify Dynamics LLC · connectorbay.com/byok-dadata · agent@connectorbay.com

What DaData (BYOK) is for

DaData (BYOK) lets an AI assistant read your own DaData data through the DaData API with a key you supply (DaData API key). Read-only: 8 tools (suggest_address, find_address_by_id, geolocate_address, locate_ip, suggest_party, find_party_by_inn, suggest_bank, find_bank). 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 suggestions.dadata.ru. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by DaData. DaData 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:

"What is the full address for 'москва хабар'?"
"Which address has the FIAS id 9120b43f-2fae-4838-a144-85e43c2bfb29?"
"What is the address near 55.601983, 37.359486?"
"Which city is the IP address 46.226.227.20 in?"
"Find the company 'сбербанк' in the Russian company registry"
"Show company details for INN 7707083893"

What it does

suggest_address: Search addresses by any part, with typo and layout correction. Works for Russia down to the flat, for Belarus, Kazakhstan and Uzbekistan down to the house, and to city level elsewhere. Returns postal code, region, city, street, house, coordinates and FIAS and KLADR codes. Free up to 10,000 requests a day.
find_address_by_id: Find an address by its FIAS code, KLADR code or cadastral number.
geolocate_address: Find the nearest addresses (houses, streets, cities) to a latitude and longitude. Russia only.
locate_ip: Find the Russian city for an IP address (60 to 80 percent accurate); location is null when the city cannot be told.
suggest_party: Search Russian companies and individual entrepreneurs by name, tax number (INN), registration number (OGRN), manager name or address, with status, manager, address and main activity code.
find_party_by_inn: Look up one Russian company or individual entrepreneur by INN, INN/KPP or OGRN: status, registration date, manager, address, activity code and branches.
suggest_bank: Search Russian banks by name, BIC, SWIFT or INN, with BIC, correspondent account, address and status.
find_bank: Look up one Russian bank by BIC, SWIFT, INN, registration number or correspondent account.

BYOK key

You bring your own DaData DaData API key (https://dadata.ru/profile/#info). 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 suggestions.dadata.ru 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.

Data sources

https://dadata.ru/api/ (the API this connector calls, with a BYOK key)

Live from the DaData API (suggestions.dadata.ru) with a BYOK key; documentation: https://dadata.ru/api/. Endpoints checked against that documentation on 2026-10-16.

What it is not

Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by DaData. DaData 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 DaData account.

Built for: Worldwide. Languages: English.