spb/tools-spboucher-ai

1{2  "slug": "polygon-io",3  "name": "Massive (formerly Polygon.io)",4  "aliases": ["Polygon.io", "Polygon", "Massive.com"],5  "vendor": { "name": "Massive (Polygon.io, Inc.)", "slug": "massive", "website": "https://massive.com" },6  "homepage_url": "https://massive.com/",7  "docs_url": "https://massive.com/docs",8  "pricing_url": "https://massive.com/pricing",9  "product_type": "api-service",10  "product_status": "active",11  "summary": "Market data platform (renamed from Polygon.io in October 2025) with REST and WebSocket APIs, flat files and SQL access for US stocks, options, indices, forex, crypto and futures",12  "description": "Massive is the market data company formerly known as Polygon.io; the rename took effect on 30 October 2025 with polygon.io redirecting to massive.com and a new api.massive.com base running alongside the legacy api.polygon.io endpoints, which the company plans to phase out after notice. It provides real-time and historical data for US stocks (including dark-pool and OTC prints), options chains with Greeks and implied volatility, global indices, forex and crypto, and futures from the CME Group exchanges.\n\nAccess methods are REST APIs for queries and history (aggregate bars, trades, quotes, snapshots, reference tickers, corporate actions, technical indicators, fundamentals and EDGAR-derived filings sections), WebSocket streams for live data, bulk flat files of historical data through an S3-compatible interface, SQL access on request and an MCP server for AI tools; official client libraries exist for Python, JavaScript, Go and Java, and migration guides map endpoints from other vendors. Pricing is per asset class with separate individual and business tiers, monthly or annual billing, add-on datasets and partner data; individual plans are restricted to personal use under the Massive for Individuals terms.\n\nResearchers choose it for API-first access to tick-level US equity and options history; constraints are the vendor-locked SDKs during the rename transition, usage terms that distinguish individual from business use, and the need for business licences for redistribution or commercial applications.",13  "capabilities": ["REST APIs for bars, trades, quotes, snapshots and reference data", "WebSocket streaming for stocks, options, futures, indices, forex and crypto", "Flat-file bulk history via S3-compatible storage", "Options chains with Greeks and implied volatility", "Fundamentals, corporate actions and EDGAR-derived filing sections", "Official SDKs for Python, JavaScript, Go and Java", "MCP server for AI assistants", "SQL access on request"],14  "workflows": ["Downloading full-day trade files for microstructure research", "Streaming quotes into a live dashboard", "Backfilling a minute-bar database via REST aggregates"],15  "advantages": ["API-first with multiple delivery methods", "Tick-level US equities and options history", "Official SDKs and migration guides"],16  "limitations": ["Rename in progress: legacy polygon.io endpoints to be retired", "Individual plans limited to personal use", "Subscription required; coverage centred on US markets"],17  "prerequisites": ["Account and API key", "Subscription for the relevant asset class"],18  "audiences": ["Quant developers and researchers", "Fintech application builders"],19  "alternatives": ["databento", "alpha-vantage", "firstrate-data", "yfinance", "interactive-brokers-api"],20  "comparison_notes": "Databento prices historical data by usage and exposes full order-book schemas; FirstRate Data sells downloadable bundles under a perpetual licence; Alpha Vantage is a free-tier-first REST API; yfinance scrapes Yahoo without a licence. Massive sits in the subscription-API tier with flat files and streaming.",21  "categories": [{ "slug": "market-data-apis", "primary": true }, { "slug": "hf-finance-research" }],22  "tags": ["market-data", "api", "time-series", "options", "websocket"],23  "use_cases": ["access-market-data", "analyze-intraday-data"],24  "operating_systems": ["any"],25  "execution_modes": ["cloud"],26  "interfaces": ["api", "sdk", "mcp-server", "web"],27  "deployment_models": ["saas"],28  "integrations": ["Python SDK", "JavaScript SDK", "Go SDK", "Java SDK", "Amazon S3 (flat files)", "Claude Code / Cursor (MCP)"],29  "data_formats": ["JSON", "CSV (flat files)"],30  "languages": ["Python", "JavaScript", "Go", "Java"],31  "source_model": "proprietary",32  "pricing_model": ["paid", "enterprise"],33  "pricing_checked_at": "2026-11-02",34  "self_hostable": false,35  "sources": [36    { "url": "https://massive.com/", "type": "official_site", "title": "Stock Market API | Massive", "supports": ["name", "summary", "capabilities", "languages"], "checked_at": "2026-11-02" },37    { "url": "https://massive.com/blog/polygon-is-now-massive", "type": "release_notes", "title": "Polygon is now Massive", "supports": ["aliases", "product_status", "description"], "checked_at": "2026-11-02", "note": "Rename effective 30 Oct 2025; legacy endpoints to be phased out with notice" },38    { "url": "https://massive.com/docs", "type": "official_docs", "title": "API Docs | Massive", "supports": ["capabilities", "interfaces"], "checked_at": "2026-11-02" },39    { "url": "https://massive.com/pricing", "type": "pricing_page", "title": "Pricing | Massive", "supports": ["pricing_model", "limitations"], "checked_at": "2026-11-02" },40    { "url": "https://massive.com/legal/terms", "type": "policy_page", "title": "Terms of Service | Massive", "supports": ["limitations"], "checked_at": "2026-11-02", "note": "Separate Individuals and Businesses terms" }41  ],42  "confidence": "high",43  "uncertainty_note": "Slug retained as polygon-io for cross-linking; the product's current name is Massive. A free tier was not visible on the pricing page at check time.",44  "discovery_method": "editorial-research",45  "depth": "standard",46  "editorial_status": "reviewed",47  "visibility": "public",48  "featured": false,49  "author": "batch-E"50}51