x402 Ping

Endpoints (77 live)

• GET /polygon/trades — Whale and large-trade tracker for an ERC-20 on Polygon PoS: every buy and sell in the last N minutes on the token's deepest WPOL/USDC pools (Uniswap v3), with USD size, side, wallet and transaction for the largest trades, buy/sell volume and net flow, and the wallets that bought or sold the most. (0.02 USDC on Base)
• GET /check — Is it safe to pay this address? One check before sending or accepting crypto: OFAC SDN sanctions screen, wallet age, EOA or contract, first funder and recent large transfers on Base, Ethereum, Arbitrum, Optimism or Polygon (wallet kind and activity on Solana), plus the token's 0-100 risk score when a token is given. Returns ok, caution or block with plain reasons and each check in full. Rules-based, not legal advice. (0.02 USDC on Base)
• GET /arbitrum/trades — Whale and large-trade tracker for an ERC-20 on Arbitrum One: every buy and sell in the last N minutes on the token's deepest WETH/USDC pools (Uniswap v3), with USD size, side, wallet and transaction for the largest trades, buy/sell volume and net flow, and the wallets that bought or sold the most. (0.02 USDC on Base)
• GET /eth/trades — Whale and large-trade tracker for an ERC-20 on Ethereum: every buy and sell in the last N minutes on the token's deepest WETH/USDC pools (Uniswap v3), with USD size, side, wallet and transaction for the largest trades, buy/sell volume and net flow, and the wallets that bought or sold the most. (0.02 USDC on Base)
• GET /base/trades — Whale and large-trade tracker for an ERC-20 on Base: every buy and sell in the last N minutes on the token's deepest WETH/USDC pools (Uniswap v3 or Aerodrome), with USD size, side, wallet and transaction for the largest trades, buy/sell volume and net flow, and the wallets that bought or sold the most. (0.02 USDC on Base)
• GET /optimism/gas — Current OP Mainnet gas conditions: block number, base fee, gas price and priority fee in gwei, and the estimated cost in ETH and USD of a native transfer and an ERC-20 transfer (Chainlink ETH/USD). (0.005 USDC on Base)
• GET /arbitrum/gas — Current Arbitrum One gas conditions: block number, base fee, gas price and priority fee in gwei, and the estimated cost in ETH and USD of a native transfer and an ERC-20 transfer (Chainlink ETH/USD). (0.005 USDC on Base)
• GET /optimism/trades — Whale and large-trade tracker for an ERC-20 on OP Mainnet: every buy and sell in the last N minutes on the token's deepest WETH/USDC pools (Uniswap v3 or Velodrome), with USD size, side, wallet and transaction for the largest trades, buy/sell volume and net flow, and the wallets that bought or sold the most. (0.02 USDC on Base)
• GET /eth/gas — Current Ethereum gas conditions: block number, base fee, gas price and priority fee in gwei, and the estimated cost in ETH and USD of a native transfer and an ERC-20 transfer (Chainlink ETH/USD). (0.005 USDC on Base)
• GET /polygon/gas — Current Polygon PoS gas conditions: block number, base fee, gas price and priority fee in gwei, and the estimated cost in POL and USD of a native transfer and an ERC-20 transfer (Chainlink POL/USD). (0.005 USDC on Base)
• GET /holidays — Statutory (general) holidays for a Canadian province or territory in a given year, using the province's local names, with the actual date and the weekday it is observed when it falls on a weekend. (0.01 USDC on Base)
• GET /eth/new-pools — New trading pools created on Ethereum in the last N minutes on Uniswap v4, Uniswap v3: both tokens with symbol, name and decimals, fee tier, v4 hooks, whether it pairs with ETH, WETH or USDC, and quote liquidity where readable. Unvetted: many new pools are spam. (0.01 USDC on Base)
• GET /polygon/token — Rug check and due-diligence snapshot of an ERC-20 token on Polygon PoS: a 0-100 risk score with reasons, name, symbol, decimals, supply, owner and whether ownership is renounced, upgradeable-proxy detection, owner-only functions found in the bytecode (mint, pause, blacklist, fee changes), and USD price, liquidity and FDV from the deepest WPOL or USDC pool on Uniswap v3. Facts only, no buy or sell opinion. (0.01 USDC on Base)
• GET /base/token — Rug check and due-diligence snapshot of an ERC-20 token on Base: a 0-100 risk score with reasons, name, symbol, decimals, supply, owner and whether ownership is renounced, upgradeable-proxy detection, owner-only functions found in the bytecode (mint, pause, blacklist, fee changes), and USD price, liquidity and FDV from the deepest WETH or USDC pool on Uniswap v3 or Aerodrome. Facts only, no buy or sell opinion. (0.01 USDC on Base)
• GET /arbitrum/nft — Metadata for an ERC-721 or ERC-1155 token on Arbitrum One: collection name, current owner (ERC-721), token URI, and the metadata JSON fetched and decoded from IPFS, Arweave, HTTPS or an inline data URI, with a browser-loadable image URL. (0.008 USDC on Base)
• GET /base/gas — Current Base gas conditions: block number, base fee, gas price and priority fee in gwei, and the estimated cost in ETH and USD of a native transfer and an ERC-20 transfer (Chainlink ETH/USD). (0.005 USDC on Base)
• GET /polygon/tx — Human-readable summary of a Polygon PoS transaction: status, block and time, sender and recipient, POL value, gas used and fee, method selector, and decoded ERC-20 transfers with token symbols and amounts. (0.005 USDC on Base)
• GET /optimism/tx — Human-readable summary of a OP Mainnet transaction: status, block and time, sender and recipient, ETH value, gas used and fee, method selector, and decoded ERC-20 transfers with token symbols and amounts. (0.005 USDC on Base)
• GET /polygon/gas — Current Polygon PoS gas conditions: block number, base fee, gas price and priority fee in gwei, and the estimated cost in POL and USD of a native transfer and an ERC-20 transfer (Chainlink POL/USD). (0.005 USDC on Base)
• GET /optimism/gas — Current OP Mainnet gas conditions: block number, base fee, gas price and priority fee in gwei, and the estimated cost in ETH and USD of a native transfer and an ERC-20 transfer (Chainlink ETH/USD). (0.005 USDC on Base)

+57 more endpoints.