Contact person: Looking for an Advanced Trading Chart (with API) to Integrate into Proprietary App

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Location: Gragnano, Italy

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I’m looking for a ready-made trading chart that can be integrated via API into my proprietary trading app (web and mobile).
I do not want to build one from scratch — I’m specifically looking for an existing solution with the following features:

Must-have features:
• Display of orders and positions directly on the chart (e.g. Buy, Sell, SL/TP)
• Ability to set custom price alerts
• Multiple timeframes
• Interactive zoom and pan
• Real-time data compatibility via WebSocket or REST API
• API or SDK for direct integration (JavaScript or Flutter preferred)

Preferences:
• A cost-effective alternative to TradingView (I cannot afford the premium plan)
• Affordable price / lifetime license preferred
• Good UI/UX and visual quality
• Support for future features like drawing tools, indicators, etc.

What I’m not looking for:
• A chart built from scratch
• Incomplete or undocumented solutions

If you already own or have developed a trading chart like this and it’s ready to be integrated, please contact me with the following:
1. Demo or video preview
2. List of features included
3. Technologies used
4. Pricing and license terms

Thank you." (client-provided description)