# FIX API Finery Markets FIX API is based on the FIX 4.4 specification. ### Connection Endpoints for connection are provided by FineryMarkets during the onboarding process. Access is provided using IP-address whitelist, which is also set during the onboarding process. Only TCP is supported, clients should connect using SSL. You should configure 1 API key per session to guarantee a connection. Resend requests are not supported. Every connection establishes a new session and a new set of session sequence numbers. ### Messages **Tag** - FIX tag of the field **Name** - FIX name of the field **R** - “Y” if the field is required, “N” - otherwise **Example** - Field value example **Description** - Brief field description All messages should include the following header:

Tag	Name	Example	Description
8	BeginString	FIX.4.4	Should be set to “FIX.4.4”
9	BodyLength	128	Length of the message body in bytes
35	MsgType	A	Message Type
49	SenderCompId	fjQxw2IJGOeJ9dg1Raam5iudLQUz9mmew3CSVassPx2	Client API key(for messages sent by the client)
56	TargetCompId	FINERYMARKETS	Should be set to “FINERYMARKETS” (for messages sent by the client
34	MsgSeqNum	1	Message sequence number. Should start at 1 and increment with every message.
52	SendingTime	20230911-09:11:14.085	UTC timestamp

All messages should include the following trailer:

Tag	Name	Example	Description
10	Checksum	ABC	Three bytes, simple checksum. ALWAYS LAST FIELD IN MESSAGE; Always defined as three characters. (Always unencrypted)

Checksum<10> is a standard FIX checksum. Description is available [here](https://www.onixs.biz/fix-dictionary/4.2/app_b.html). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://faq.finerymarkets.com/api-reference/fix-api.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.