As of September 2026. Competitor prices: check Koyfin.
Koyfin is a dashboard-first equity and macro terminal with strong visualization. Vantafin is a research app that also exposes the same books over REST, WebSocket, and MCP. Koyfin wins if you want analyst-style dashboards. Vantafin wins if you also need official APIs and cited AI Chat.
| Criteria | Vantafin | Koyfin |
|---|---|---|
| Primary product | App + REST/MCP/WebSocket | Research dashboards and graphing |
| Developer access | REST, MCP (23 tools), WebSocket on Ultimate | Product is the terminal, not a public API suite |
| AI research | Cited AI Chat on Pro and Ultimate | Dashboard workflows, not Vantafin's chat model |
| Filings | SEC filings since 1994 | Fundamentals-heavy dashboards |
| Pricing model | Free; Pro $25/mo or $20/mo annual; Ultimate $50/mo or $40/mo annual | Free and paid research plans; check koyfin.com |
| Best for | Retail investors and builders who want one research app plus the same dataset over REST, WebSocket, and MCP. | Analysts who want graph-heavy equity and macro boards |
You want the terminal and the API on one bill, including MCP for Claude or Cursor.
dashboard graphing and macro boards are the whole job and you do not need an API.
Koyfin is a respected retail/prosumer terminal. We do not claim feature parity on every graph. Confirm Koyfin plan prices on their site. As of September 2026.
Sometimes, not always. Use Vantafin when you want cited research, filings, a screener, and APIs in one subscription. Stay with Koyfin when you want graph-heavy dashboards and will not call an API.
Vantafin is free to start. Pro is $25/month or $20/month billed annually. Ultimate is $50/month or $40/month billed annually. Koyfin prices change; check their site rather than a cached third-party list.
Choose Vantafin if MCP, REST, and cited AI Chat sit next to the same filings you read in the app.
Yes. Plenty of people keep Koyfin for the job it already does well and add Vantafin for filings, an 80+ metric screener, cited AI Chat, or an official REST/MCP key. You do not have to pick only one.
Yes. REST and 23 typed MCP tools ship on Pro. WebSocket streaming is Ultimate only. The same books sit behind the web app. See pricing.
Free covers delayed quotes, 20K+ company profiles, SEC filings since 1994, limited charting, and one watchlist. No card required. Live quotes on 9,000+ tickers, AI Chat, REST, and MCP start on Pro.
Koyfin prices change and are often not listed the way a self-serve SaaS page is. We keep their cost qualitative. Confirm on their site. Vantafin prices here are current as of September 2026.
Read the pricing page for plan limits, the alternatives hub for other fits, or what a financial data API is if you are evaluating developer access.
Koyfin is a dashboard-first terminal. Vantafin sells REST, 23 MCP tools, and WebSocket on the same subscription as the app. If developer access is a requirement, that is the split.
No. Koyfin is strong at equity and macro visualization. Vantafin is stronger when you also need official APIs and source-backed AI Chat. Confirm current Koyfin plans on koyfin.com.
Free to start. $20 or $40 a month unlocks live data, AI chat, and full API access.