Access Massive(Polygon) stock, crypto, forex, options, indices, futures, market data, and news APIs via CLI.
Scanned 9/5/2026
Install to Claude Code
npx -y skills add dvcrn/openclaw-skills-marketplace --skill massive-api --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: massive-api
description: "Access Massive(Polygon) stock, crypto, forex, options, indices, futures, market data, and news APIs via CLI."
---
# Massive(Polygon) Market Data Skill
A CLI tool and JS client wrapper for the [Massive(Polygon)](https://massive.com) financial data APIs. Covers stocks, crypto, forex, options, indices, futures, market status, news, and reference data.
## CLI Usage
```bash
npx --yes massive <command> [options]
```
All commands output JSON to stdout. Use `--help` for a list of commands or `<command> --help` for command-specific options.
### Stocks
See [Stocks Commands Reference](references/stocks_commands.md) for full details on all stock commands and parameters.
### Crypto
See [Crypto Commands Reference](references/crypto_commands.md) for full details on all crypto commands and parameters.
### Forex
See [Forex Commands Reference](references/forex_commands.md) for full details on all forex commands and parameters.
### Options
See [Options Commands Reference](references/options_commands.md) for full details on all options commands and parameters.
### Indices
See [Indices Commands Reference](references/indices_commands.md) for full details on all indices commands and parameters.
### Reference Data
See [Reference Data Commands Reference](references/reference_commands.md) for full details on all reference data commands and parameters.
### Market
See [Market Commands Reference](references/market_commands.md) for full details on all market commands and parameters.
### News
See [News Commands Reference](references/news_commands.md) for full details on all news commands and parameters.Is this your skill, or is something wrong with this listing? Request removal or report an issue. Author removals are honored within 72 hours.
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