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EROYA MARKET DATA

Global market data, delivered your way.

Access full historical or real-time market data through HTTPS, REST API, bulk files, flat files, and WebSocket — all with a single API key.

Everything is ready to enhance your custom application, from hobby projects and business development to enterprise-scale systems.

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Eroya MCP

Market data for your AI assistant.

Bring market data into your AI conversations. Copy the brief, paste it to your agent, and sign in with an email code when MCP launches.

Explore MCP

Coming soon

Example conversation

YouFind daily prices for Apple over the past month.

Your AI assistantI’ll find the dataset, check its fields, and request the daily prices after you sign in with your email code.

Your AIEroya MCPMarket data

Qonsultation

Your framework. A human second opinion.

An industry quant engineer reviews your framework and adds the practical judgment AI suggestions miss — privately, within an agreed scope.

Open Qonsultation

Share only code and data you are authorized to disclose. No credentials or restricted employer materials.

#Q-001Reviewing

Consumer falls behind during bursts

  1. 01Reproduce in Python
  2. 02Review the bottleneck
  3. 03Deliver Rust code

Our Python consumer falls behind during market-data bursts. Where should we start?

Let’s reproduce the backlog and separate parsing from processing. We can then decide whether a bounded Rust ingestion component is useful—and verify it against your original Python framework.

  • framework_review.md6 KB
  • consumer.rs14 KB
  • benchmark_plan.md3 KB

THE DATA SERVICE

Market coverage.

Build with deep historical coverage, real-time feeds, and one key across U.S. stocks, U.S. options, and China A-shares.

MARKET COVERAGE
U.S. STOCKSU.S. OPTIONSCHINA A-SHARES

REST API

Stable versioned JSON endpoints.

Bulk files

Free: daily market files and quarter, year, or full-history Parquet statements.

Flat files

Full-market tick and aggregate archives over presigned S3 links.

WebSocket

Real-time U.S. stocks; options and indices delayed 15 minutes.

MCP Server

Coming soon. Market data for AI assistants via OAuth.

View data coverage API docs

FREE DATA

Available bulk files are free.

Browse public catalog metadata for whole-market daily bars, financial statements, and China A-share history. Files marked available download at no cost; U.S. provider-backed files remain gated until the required upstream rights are active.

  • U.S. daily bars

    CSV.GZ

    Five years of adjusted all-market OHLCV, by month and by year.

  • U.S. financial statements

    Parquet

    Income, balance sheet, and cash flow by fiscal quarter, year, or full history.

  • China A-share daily

    CSV.GZ · Parquet

    Unadjusted OHLCV by month, plus yearly and full-history rollups.

  • Reference directories

    CSV.GZ

    U.S. option contract index and the current China security master.

Files are served as compressed CSV.GZ and Zstandard Parquet over direct object-store links.

Browse free data View data coverage

START BUILDING

Choose a plan and start building.

Generate your Eroya API key in the console, monitor request usage, and scale through clear per-minute data limits.

Every new user gets Pro for 7 days with no card and no automatic charge. Paid subscriptions start billing immediately.

Open console Pricing