Data CLI (vike-data)

vike-data, the open-source command line for the Data API — install it, save a key, query wallets, Hyperliquid and Polymarket from a terminal, and install the agent skills.

vike-data is the Data API's command line: the npm package @vike-io/cli, open source (MIT) at github.com/vike-io/vike-data-cli. Every data command is one call to the MCP server at https://vike.io/mcp, so it reaches the same tools with the same key and spends the same hourly budget as MCP and REST — see Rate limits.

It is not the Trader's command line. vike-cli drives the trading platform and is documented under Trader.

Install

npm install -g @vike-io/cli    # Node.js 22.12 or newer

The package installs one command, vike-data. Before 0.13.0 it was also installed as vike; a script or an installed agent skill that still calls vike needs updating.

First run

A first session

# paste your key: it is saved to ~/.vike/config.json and checked against vike.io/mcp
vike-data init

# Node version, key, MCP connectivity and the tool list, in one check
vike-data doctor

# then the first queries
vike-data token search PEPE
vike-data perp top-traders --window 7d
vike-data candles hl BTC --interval 1h --limit 48
vike-data polymarket markets --category Crypto

The key is read from VIKE_API_KEY first and from ~/.vike/config.json second. vike-data login --api-key vk_... writes the file, vike-data logout removes it, and vike-data whoami says which of the two is in use.

Commands

vike-data <group> --help lists a group's flags, and vike-data schema prints every tool the server exposes with its parameters.

Command	Subcommands	MCP tool
`vike-data token`	`search`, `transfers`, `screener`, `holders` (`--chain ethereum\|bsc\|base`)	`token_search`, `token_transfers`, `token_screener`, `token_holders`
`vike-data wallet`	`summary`, `transactions` (`txs`), `compare`, `trace`, `batch`, `counterparties`, `pnl-history`, `balances`, `ens`, `discover`	`wallet_summary`, `wallet_transactions`, `wallet_compare`, `wallet_trace`, `wallet_batch_labels`, `wallet_counterparties`, `wallet_pnl_history`, `wallet_token_balances`, `wallet_ens`, `wallet_discover`
`vike-data labels <address>`	label provenance for one wallet	`wallet_label_provenance`
`vike-data perp`	`top-traders`, `find-position` (Hyperliquid); `funding`, `spreads` (cross-venue)	`hl_perp_top_traders`, `hl_position_match`, `perp_funding`, `perp_spreads`
`vike-data candles`	`hl <symbol>`, `polymarket <token_id>`	`hl_ohlcv`, `polymarket_ohlcv`
`vike-data polymarket` (`pm`)	`markets`, `market <condition_id>`, `wallet <address>`, `smart-money`	`polymarket_markets`, `polymarket_market_detail`, `polymarket_wallet`, `polymarket_smart_money`
`vike-data alerts`	`list`, `channels`, `create`, `edit`, `delete`, `register-webhook`	`alerts_*`
setup	`init`, `login`, `logout`, `whoami`, `doctor`, `schema`, `install`	—

Output is a table on a terminal and JSON with --json or whenever stdout is piped, so vike-data token search BTC | jq '.' needs no flag.

Agent skills

The repository ships skill playbooks an AI coding agent loads to know when and how to call each command; the installer detects Claude Code, Cursor, Codex, Copilot, Gemini CLI and others.

Skills

# see them first, then install
npx skills add vike-io/vike-data-cli --list
npx skills add vike-io/vike-data-cli

# or, from the installed CLI, write the umbrella skill where each agent looks for it
vike-data install --claude     # ~/.claude/skills/vike/SKILL.md
vike-data install --cursor     # ./.cursorrules
vike-data install --copilot    # ./.github/copilot-instructions.md
vike-data install --agents     # ./AGENTS.md
vike-data install --all        # all four

Environment

Variable	Effect
`VIKE_API_KEY`	the key; wins over the saved config
`VIKE_MCP_URL`	the MCP endpoint, `https://vike.io/mcp` by default
`VIKE_NO_TELEMETRY=1` or `DO_NOT_TRACK=1`	turns off anonymous usage telemetry (also off whenever `CI` is set)
`VIKE_NO_UPDATE_CHECK=1` or `NO_UPDATE_NOTIFIER=1`	turns off the background npm update check

Telemetry sends the command name, the flag names but never their values, the duration, an error code and a random device id — never what you queried.