Nansen Polymarket Insider Scan
This scans resolved Polymarket markets for wallets that look like they had inside information. It pulls the top winners from a market, then checks each one for red flags: brand new wallets, people who only traded this one market, insane ROI percentages, late entries at high confidence prices. The scoring system is explicit, with thresholds like 500%+ ROI for 3 points or single market focus for another 3. You'd run this after a sketchy outcome to see if the usual suspects show up. It requires a Nansen API key and does the tedious work of cross referencing trading history with wallet funding dates and profiler labels. Rate limiting and error handling are built in since you're often checking dozens of wallets.
- skills.sh installs
- 391
- GitHub stars
- 148
- last updated
- Aug 21, 2026
Install
$ npx -y skills add nansen-ai/nansen-cli --skill nansen-polymarket-insider-scan --agent claude-codeInstalls into .claude/skills of the current project.
Files
Authentication
Browser login requests nansen:api for API-key-equivalent account API permissions; existing OAuth/MCP nansen:read semantics and separate wallet authorization are unchanged.
Before any research command or loop, require an explicitly selected API key or saved browser session. Run nansen auth status first. Its cached/unverified metadata does not prove credential validity or unlocked storage. Cached access-token expiry alone does not mean the session is unusable: the CLI normally renews a selected session automatically during an already-authorized research task, without another consent request or a separate account check. Stop on anonymous selection, invalid authentication state, blocked or uncertain renewal/cleanup, or an actual authentication failure, including rejected or expired refresh authority. Follow the CLI error guidance; use the free nansen account check when troubleshooting calls for it. Do not unset a failed key, erase a session or switch to anonymous access to retry.
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- Repository
- github.com/nansen-ai/nansen-cli
- Categories
- CLI & Terminal, Finance & Trading
- First seen
- Jun 3, 2026
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