Nansen Polymarket Trader Profile
Pull trade history and P&L breakdowns for any Polymarket wallet address using Nansen's API. You get timestamped trades with market context, USDC values, and profit/loss across resolved and unresolved positions. The workflow is specific: find active trader addresses from market trade logs first, not holder lists, since holders might have empty trade history. Useful when you're trying to understand what a specific wallet is betting on, whether they're actually profitable, or if their large positions in certain categories signal real conviction versus luck. Requires a Nansen API key and the nansen-cli Node package.
- skills.sh installs
- 395
- GitHub stars
- 148
- last updated
- Aug 21, 2026
Install
$ npx -y skills add nansen-ai/nansen-cli --skill nansen-polymarket-trader-profile --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, Web3 & Blockchain
- First seen
- Jun 3, 2026
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