x402tap.com

https://x402tap.com/api/crypto-price

Look up current price, 24h change, and market cap for one or more cryptocurrencies

• 0.001 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/crypto-trending

Get the top trending cryptocurrencies right now, ranked by search interest

• 0.001 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/defi-chains

Rank blockchains by total DeFi value locked (TVL) across all protocols

• 0.002 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/gas-price

Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism)

• 0.001 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/insights

Trend insights for a topic, based on real Wikipedia page-view volume and momentum. Premium tier adds relatedTrends: other Wikipedia article titles matching the same search terms (title-similarity, not a curated semantic-relevance ranking). Not literal search/social trend data — see the response's `source` field.

• 0.001 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/kalshi-markets

Search or list open Kalshi prediction markets (regulated US event contracts)

• 0.003 USD Coin / request · eip155:8453
• Unknown price · eip155:137
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• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/ping

Heartbeat endpoint billed via a batch-settlement payment channel

• 0.001 USD Coin / request · eip155:8453

https://x402tap.com/api/polymarket-markets

Search or list active Polymarket prediction markets, ranked by 24h volume

• 0.003 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/prediction-arb

Find prediction-market questions priced differently on Polymarket vs. Kalshi — a cross-platform divergence signal built from data no single-platform competitor has

• 0.005 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/rpc

Safelisted read-only JSON-RPC proxy across major EVM chains (base, ethereum, polygon, arbitrum, optimism) — eth_call, eth_getBalance, eth_getTransactionReceipt, eth_getBlockByNumber, and more

• 0.003 USD Coin / request · eip155:8453
• Unknown price · eip155:137
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https://x402tap.com/api/wallet-balance

Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism)

• 0.002 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/weather

Live current weather conditions for any city, sourced from Open-Meteo

• 0.001 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/api/web-search

Real-time web search (via Exa) — ranked results with title, URL, published date, author, and relevance score for a query

• 0.003 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

https://x402tap.com/protected

Premium content

• 0.001 USD Coin / request · eip155:8453
• Unknown price · eip155:137
• Unknown price · eip155:42161
• Unknown price · solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp