Home / Compare / Massive (formerly Polygon.io) vs InvestSights

Massive (formerly Polygon.io) vs InvestSights pricing (Oct 2026)

Massive (formerly Polygon.io) starts at $29/mo (Stocks Starter), InvestSights starts at Custom pricing.

Last updated Oct 16, 2026

Massive (formerly Polygon.io)

$29/mo — Stocks Starter

InvestSights

Custom pricing

Pricing page could not be fully read (status: partial); some details unverified.

Price

Cheapest: $29/mo — Stocks Starter

• Stocks Basic: Free only
• Stocks Starter: $29/mo
• Stocks Developer: $79/mo
• Stocks Advanced: $199/mo

Cheapest: Custom pricing

• Public MCP connector: Free only
• Enterprise / B2B API key: Custom pricing

Annual price

• Stocks Basic: Free only
• Stocks Starter: Unverified
• Stocks Developer: Unverified
• Stocks Advanced: Unverified

• Public MCP connector: Free only
• Enterprise / B2B API key: Custom pricing

Included usage

• Stocks Basic: 5 API calls/min
• Stocks Starter: Unverified
• Stocks Developer: Unverified
• Stocks Advanced: Real-time data

• Public MCP connector: Curated pack of 26 public research tools (Indian stocks, IPOs, mutual funds); OAuth sign-in, no API key
• Enterprise / B2B API key: Full 58-tool catalog (REST + MCP), per-key rate limits

Overage

• Stocks Basic: Free only
• Stocks Starter: Unverified
• Stocks Developer: Unverified
• Stocks Advanced: Unverified

• Public MCP connector: Free only
• Enterprise / B2B API key: Custom pricing

Free tier

Stocks Basic $0

Free public MCP connector (26 tools)

FAQ