Yandex Market (BYOK)

Yandex Market (BYOK) — connector documentation

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

What Yandex Market (BYOK) is for

Yandex Market (BYOK) lets an AI assistant read your own Yandex Market data through the Yandex Market API with a key you supply (Yandex Market API key). Read-only: 12 tools (list_campaigns, get_campaign, get_campaign_settings, list_business_orders, get_order, list_returns, list_offer_prices, list_offer_mappings, list_stock_balances, list_goods_feedback, list_goods_questions, search_regions). 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 api.partner.market.yandex.ru. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Yandex Market. Yandex Market 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:

• "Which Yandex Market stores does my key give access to?"
• "Is API access enabled for Yandex Market campaign 12345678?"
• "What VAT setting does my Yandex Market store use?"
• "Which Yandex Market orders were created this week?"
• "Show Yandex Market order 1001"
• "Which Yandex Market returns are waiting for a decision?"

What it does

• list_campaigns: List the stores (campaigns) the key can use, with domain, campaign id, business id and name, placement model (FBS, FBY, DBS, LAAS) and whether API access is enabled.
• get_campaign: Get one Yandex Market store: domain, business, placement model and API availability.
• get_campaign_settings: Get a store's settings: shop name, country region id, local region, VAT scheme and display options.
• list_business_orders: List orders across a business (all stores), with status, dates, payment type, delivery type, prices and items. Read only; max range between dates is 30 days. Newer replacement of the per-store order list.
• get_order: Get one order of a store by id: status, dates, currency, totals, payment, delivery type and the ordered items.
• list_returns: List unredeemed orders and returns of a store with refund status, shipment status, dates and amounts. Filter by type or update date.
• list_offer_prices: List the prices you set on products in a store, by offer id, with market SKU and update time.
• list_offer_mappings: List the products of a business catalog with offer id, name, category, vendor, price, card status and archive flag. The answer carries the full product records, so keep the limit small.
• list_stock_balances: List stock counts (available, frozen, quarantined and so on) per offer on a partner warehouse of a business.
• list_goods_feedback: List customer reviews of your products with rating, text, offer id, order id and whether a reaction is needed.
• list_goods_questions: List buyer questions about your products, newest or oldest first, optionally only those still unanswered.
• search_regions: Search Yandex Market regions by name (capitalised first letter, rest lower case) to get region ids with type and parent region.

BYOK key

You bring your own Yandex Market Yandex Market API key (https://yandex.ru/dev/market/partner-api/doc/en/). 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 api.partner.market.yandex.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://yandex.ru/dev/market/partner-api/doc/en/ (the API this connector calls, with a BYOK key)

Live from the Yandex Market API (api.partner.market.yandex.ru) with a BYOK key; documentation: https://yandex.ru/dev/market/partner-api/doc/en/. 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 Yandex Market. Yandex Market 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 Yandex Market account.

Built for: Worldwide. Languages: English.

Yandex Market (BYOK) — Privacy Policy

Effective 24 October 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Yandex Market (BYOK) is. Yandex Market (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own Yandex Market data: Read your Yandex Market seller stores, orders, returns, prices, stock, catalog, reviews and questions with your own API key. You bring your own Yandex Market Yandex Market API key; the assistant sends it to us with each request.

BYOK key. The key you supply is used to make the one Yandex Market 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 api.partner.market.yandex.ru, over https, and is removed from any text we return to you or your assistant. We do not follow redirects with your key. If Yandex Market 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 Yandex Market receives. The request we make on your behalf, including the key and the arguments, under Yandex Market's own terms and privacy policy. Yandex Market acts at your direction and is the only recipient of the data of your request besides our hosting provider.

What we return. The answer Yandex Market 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 Yandex Market 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. Yandex Market (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 Yandex Market at any time to end all access.

Children. Yandex Market (BYOK) is a general-audience service operated by the adult using the assistant, under Yandex Market's own age rules.

Changes. We will post changes here with a new effective date.

Yandex Market (BYOK) — Terms of Service

Effective 24 October 2026. These terms govern use of the Yandex Market (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. Yandex Market (BYOK) provides: Read your Yandex Market seller stores, orders, returns, prices, stock, catalog, reviews and questions with your own API key. It is accessed through an AI assistant or directly over MCP or HTTP, and is read-only.
2. Your own key, your own account. You must use your own Yandex Market credentials and only access data you are allowed to access. Yandex Market's terms apply to your use of Yandex Market; you are responsible for complying with them, including any rate limits and permitted uses. Do not share a key you do not own.
3. Independent. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Yandex Market. Yandex Market and its logos are trademarks of their owners and are used only to say which service the connector works with.
4. No advice, no guarantees. Output is the data Yandex Market returns, lightly trimmed; it may be incomplete, delayed or changed by Yandex Market. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your Yandex Market account.
6. Acceptable use. Automated use within the published rate limits is welcome. Do not use the Service to access data you are not entitled to, to circumvent Yandex Market's controls, or to attack any system.
7. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time; Yandex Market may change or end its API at any time.
8. Data. Our Privacy Policy describes what we process. In short: the BYOK key is used for the one call and not stored or logged.
9. Pro keys. Optional ConnectorBay Pro API keys are issued at our discretion and are separate from your Yandex Market key.
10. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service, including any action Yandex Market takes on your account. Our total liability is limited to US $100.
11. Governing law. California law; venue in San Mateo County, California.
12. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/byok-yandexmarket

Yandex Market (BYOK) support

Email agent@connectorbay.com. We answer within two business days.

• MCP endpoint: https://byok-yandexmarket.connectorbay.com/mcp
• REST API: https://byok-yandexmarket.connectorbay.com/openapi.json
• Live status: https://byok-yandexmarket.connectorbay.com/health

When 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. Yandex Market (BYOK) never asks for them.