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SynFutures Cash API

Cash (USD) deposits and withdrawals

SynFutures Cash API is one of 6 APIs that SynFutures publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Cash. The published artifact set on APIs.io includes an OpenAPI specification and authentication docs.

This API exposes 10 operations across 10 paths, and defines 2 schemas. It is described by OpenAPI 3.2.0, at version v1.

Requests are made against a single base URL, https://base-api.synfutures.com/rwa/trading.

10 operations 10 paths 2 schemas 4 GET6 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
v1
Base URL
https://base-api.synfutures.com/rwa/trading
Authentication
API Key, API Key, API Key, API Key, API Key, API Key
Contact
Resource Areas
1

Authentication & Security 6

SynFutures Cash API declares 6 security schemes for authenticating requests. An API key is passed in the header as x-api-key (ApiKeyAuth). An API key is passed in the header as x-api-ts (ApiTimestamp). An API key is passed in the header as x-api-nonce (ApiNonce). An API key is passed in the header as x-api-sign (ApiSignature). An API key is passed in the header as x-api-chain-id (ApiChainId). An API key is passed in the header as x-api-p (ApiProduct). By default, every request must be authenticated.

  • ApiKeyAuth — Partner API key (must be active, unexpired, and IP-whitelisted).
  • ApiTimestamp — Unix millisecond timestamp; must be within 45s drift tolerance.
  • ApiNonce — Unique replay-prevention nonce per key within the 45s window (UUID recommended).
  • ApiSignature — HMAC-SHA256 signature over the canonical request, hex-encoded (case-insensitive).
  • ApiChainId — Chain identifier (e.g. 8453 Base, 1 Ethereum, 143 Monad).
  • ApiProduct — Product type; use "Synfutures".

Paths & Operations 10

Across 10 paths, the API surfaces 10 operations — 4 GET, 6 POST. Each is listed below with its method, path, parameters, and response codes.

Cash 10

Cash (USD) deposits and withdrawals

POST
/api/v1/cash/deposits/calldata
Deposit calldata
buildCashDepositCalldata body → 200401
POST
/api/v1/cash/deposits/send
One Click deposit
sendCashDeposit body → 200401
POST
/api/v1/cash/deposits/tx
Record deposit tx
recordCashDepositTx body → 200401
GET
/api/v1/cash/deposits
Deposit list
listCashDeposits 2 params → 200401
GET
/api/v1/cash/deposits/{operationId}
Deposit detail
getCashDeposit 1 param → 200401
POST
/api/v1/cash/withdrawals/calldata
Withdraw calldata
buildCashWithdrawalCalldata body → 200401
POST
/api/v1/cash/withdrawals/send
One Click withdraw
sendCashWithdrawal body → 200401
POST
/api/v1/cash/withdrawals/tx
Record withdraw tx
recordCashWithdrawalTx body → 200401
GET
/api/v1/cash/withdrawals
Withdraw list
listCashWithdrawals 2 params → 200401
GET
/api/v1/cash/withdrawals/{operationId}
Withdraw detail
getCashWithdrawal 1 param → 200401

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed is Envelope (5 properties). Each schema is shown below with its type and property counts.

Envelope
object
All responses share this envelope.
5 properties
PagedEnvelope

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

synfutures-cash-api-openapi.yml Raw ↑

Other APIs SynFutures publishes across the network.

SynFutures Market Data API
SynFutures One Click API
SynFutures Orders API
SynFutures Portfolio API
SynFutures Stock API
Where this information came from

This is an independent, third-party profile of SynFutures Cash API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

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