Integration Guidelines & Technical Protocol Specs
Authoritative implementation standards, cryptographic signature schemes, sandbox lifecycle workflows, and low-latency protocol specifications for connecting broker backends to FxTrusts.
Setup Estimate Calculator
Calculate deployment milestones, server setup days & turnkey scope →
KYB Document Checklist
Required corporate documents, UBO identification & AML compliance →
Core Architectural Principles
FxTrusts services are built on zero-trust perimeter isolation, strict state machines, and idempotent transaction pipelines to guarantee absolute financial integrity.
Zero-Trust Network Perimeter
All API traffic is filtered through dual hardware firewall layers with explicit egress IP whitelisting, TLS 1.3 encryption, and rate-limiting perimeter proxies.
Strict Idempotency
Every state-changing operation (deposits, ledger transfers, trade account creations) requires a unique UUIDv4 key to prevent duplicate execution during network retries.
Sub-5ms Event Streaming
Drop copy executions and client ledger transactions are pushed through high-availability Webhook queues with sub-second acknowledgement and automatic retry backoff.
Authentication & Cryptographic Signatures
Every inbound API request must be cryptographically signed using HMAC-SHA256 to ensure payload integrity and prevent replay attacks across unsecured networks.
Signature Generation Standard
Concatenate the UNIX epoch timestamp and the verbatim raw JSON request body separated by a single period (.). Hash this string using HMAC-SHA256 with your private API Secret.
- Replay Window: Requests with a timestamp older or newer than 300 seconds (5 minutes) are immediately rejected with HTTP 401.
- Raw Payload Digest: Whitespace and ordering in JSON matters. Always stringify and digest the exact raw byte array sent over the wire.
- Dual Key Pairs: Maintain active primary and secondary keys for zero-downtime secret rotation without interrupting live services.
import crypto from 'crypto';
function generateHeaders(apiKey: string, apiSecret: string, body: object, idempotencyKey: string) {
const timestamp = Math.floor(Date.now() / 1000).toString();
const payloadString = JSON.stringify(body);
const signaturePayload = `${timestamp}.${payloadString}`;
const hmac = crypto.createHmac('sha256', apiSecret);
hmac.update(signaturePayload);
const signature = hmac.digest('hex');
return {
'Content-Type': 'application/json',
'X-FxTrusts-ApiKey': apiKey,
'X-FxTrusts-Timestamp': timestamp,
'X-FxTrusts-Signature': `t=${timestamp},v1=${signature}`,
'Idempotency-Key': idempotencyKey,
};
}4-Stage Integration Lifecycle
From staging credentials to production cutover, follow our structured onboarding roadmap to ensure zero-risk release.
Staging & Firewall Whitelisting
Obtain sandbox credentials, assign static outbound CIDR blocks, and configure TLS 1.3 certificates.
Contract & Schema Validation
Implement JSON schema validation, ISO-8601 UTC timestamps, and test idempotent retries.
Webhook Handshake & ACK
Set up receiver listeners with cryptographic signature checks and sub-3000ms acknowledgement response.
Certification & Production Sign-off
Execute end-to-end synthetic trading, deposit clearing, and emergency disconnect drills with NOC engineers.
Protocol Specifications
FxTrusts exposes three high-performance communication rails optimized for low latency, reliability, and institutional compliance.
RESTful Management API
Used for client CRM operations, KYC uploads, balance adjustments, account creation, and reporting.
FIX Protocol Trade Rail
Ultra-low latency institutional order execution, market data quotes, and drop-copy trade capture.
Event-Driven Webhooks
Real-time asynchronous notification pipeline for deposit confirmations, KYC status changes, and margin calls.
Rate Limits & HTTP Response Codes
Design client connection pools and error handling handlers to respect platform thresholds.
Tiered Rate Limits
| Endpoint Group | Burst Capacity | Sustained / Min |
|---|---|---|
| Auth & Session | 20 req / sec | 300 req / min |
| Account Management | 50 req / sec | 1,200 req / min |
| Trading Orders (REST) | 100 req / sec | 3,000 req / min |
| Reports & Analytics | 10 req / sec | 120 req / min |
Standard Error Codes
| Code | Meaning & Recommended Action |
|---|---|
| 200 OK | Request succeeded; idempotent results cached safely. |
| 400 BAD | Malformed JSON or missing required fields; review schema. |
| 401 AUTH | Invalid HMAC signature or timestamp drift > 300s. |
| 429 LIMIT | Rate limit breached; inspect Retry-After header. |
Pre-Production Certification Checklist
Verify each implementation milestone before scheduling production cutover with your designated FxTrusts Solutions Architect.
Integration Readiness Score
2 of 6 milestones completedReady to Certify Your Integration?
Our technical engineering desk can review your payloads, assist with FIX cross-connects, and provision dedicated sandbox environments.