MPP / Tempo

The Nansen API supports three paid-access rails: API key, x402 (handled by nansen-cli), and MPP via Tempo (handled by the separate tempo CLI). This skill covers the third.

nansen-cli does not sign MPP credentials. Use this skill when the user wants to call the Nansen API through tempo request because they already use tempo, want micropayments without managing wallet keys themselves, or don't want to fund a Base/Solana USDC wallet.

For API-key auth, see nansen-wallet-manager. For x402 micropayment with a local wallet, see nansen-trading / nansen-wallet-manager.

When to use this skill

• User says "MPP", "tempo", "Authorization: Payment", or "Payment-Receipt".
• User has no Nansen API key and doesn't want to set up a Base/Solana wallet.
• User is already paying for other APIs through tempo and wants Nansen on the same rail.

One-time setup

# 1. Install the tempo CLI
curl -fsSL https://tempo.xyz/install | bash