Subscription semantics
Define subscribe/unsubscribe messages, symbol identifiers and acknowledgement behaviour so clients can recover their state after reconnecting.
Low-latency WebSocket market data API for broker platforms, terminals, dashboards and fintech applications. Stream normalized bid/ask pricing in real time.
WebSocket Market Data API
Subscribe to a continuous normalized price stream for client-facing applications and internal systems that need event-driven market data.
Multi-sourcePrimary + backup inputs
NormalizedUnified symbol & quote model
Low latencyStreaming-oriented delivery
Broker controlsMapping, policy & monitoring
Production architecture
Built for trading infrastructure, not a generic retail endpoint.
PriceFeed.xyz is positioned as an integration layer between approved data sources and the systems that consume pricing: trading servers, terminals, risk, dealing, charts and proprietary applications.
WS
Streaming subscriptions
Subscribe to selected symbols and fields instead of polling snapshots.
JSON
Normalized payloads
Deliver consistent quote objects across supported asset classes.
LIVE
Connection health
Use heartbeat and status concepts to identify feed availability and stale streams.
Deployment workflow
Requirements
Define instruments, sessions, precision, latency expectations and commercial data rights.
Sources
Connect broker-approved sources and define priority, filtering and failover behaviour.
Policy
Normalize symbols, transform quotes and apply broker-specific pricing rules where required.
Delivery
Route output to FIX, WebSocket, REST, MetaTrader or proprietary consumers.
Search & procurement topics
Relevant buyer intents include: WebSocket market data API · real-time price WebSocket · streaming market data · forex WebSocket API · broker market data stream.
Availability, licensing, instrument coverage and redistribution rights depend on the selected data sources and the customer deployment. The website does not imply exchange or vendor entitlement where none has been contracted.
Streaming API design
WebSocket delivery for trading applications
WebSocket is useful for continuously updated prices, but a production client needs a contract for subscriptions, reconnects, snapshots and message ordering rather than relying on an open connection alone.
Initial state
A stream should define whether a client receives an initial snapshot before incremental changes. This avoids displaying incomplete state after connection.
Reconnect strategy
Clients need deterministic resubscription behaviour, backoff and a way to detect stale connections even if the TCP session has not visibly failed.
Payload discipline
Keep the message schema stable and versioned. Timestamp fields and quote types should be unambiguous so web, mobile and server clients interpret updates consistently.
Production review checklist
✓ Source rights and permitted use confirmed
✓ Symbol model documented
✓ Failure and recovery behaviour tested
✓ Monitoring and ownership defined
FAQ
Questions about WebSocket Market Data API
What is a broker market data price feed?
A production broker price feed is a controlled stream of market prices delivered to trading and downstream systems, normally with source management, normalization, monitoring and failover.
Can PriceFeed.xyz connect to MT4 and MT5?
The solution is designed around MT4, MT5 and proprietary trading stacks. The exact gateway, plugin or bridge method depends on the broker environment and selected data sources.
Which delivery protocols are supported?
The architecture supports FIX market data, streaming WebSocket and REST workflows, with broker-specific integration paths for MetaTrader and proprietary platforms.
Can a broker use its own data sources?
Yes. Broker-approved institutional, exchange, reference or proprietary sources can be normalized and routed through the pricing layer subject to licensing and technical compatibility.
Explore the stack
Related market data solutions
● SALES & INTEGRATION
Scope your production feed.
Send your asset classes, symbol list, trading platform, target regions and preferred connectivity. We will map the required market-data architecture.
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