Applications, APIs & agent tools
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Listing ID: x402:c8d1b489ddb190b7af47ee4c34cc2d932f309884b3cb4527fa9d42821908a861
Octodamus BTC Contrarian Alert -- pay-per-call x402 endpoint on Base. Preview: https://api.octodamus.com/v2/ben/bens_btc_contrarian_alert/preview
Listing ID: x402:99ec4a74572411c31be9568e0d83be0850b3f30449adb9ccaa37474c272ac3c2
Octodamus — AI oracle for crypto and tokenized NYSE markets. BUY/SELL/HOLD signals, Polymarket edges, Fear & Greed, macro regime. Ed25519 signed.
Listing ID: x402:b38fac88cf9742cf7b2306f3b9099573f5796d8943951899af8ebd3c50c98164
ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet
Listing ID: x402:03277fa2906d588a52e04c938d05cfb40b8a17c06744323f9d41a81929626ff6
Latest Ethereum block height - current chain tip via eth_blockNumber
Listing ID: x402:d00fa57bdd5b372cd58844762801313f3e6e6c988e090aed78a407f88630de0f
Fetch an Ethereum block header and transaction hashes by number, tag, or hex via eth_getBlockByNumber
Listing ID: x402:33908ebf0a40ba5ba078edb29679376b4d299b90ee7b47233630f2fc97fbf412
Simulate a read-only Ethereum contract call via eth_call - no transaction sent
Listing ID: x402:a562bbb15f93ce60a82fed47975a90f64004b4f3a2a1f24dac2e8b9c8b9556a4
Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on
Listing ID: x402:5b61767599c02130fb2d28d1c5f0a7a3629ca626187bdec458d4929a37c7f7c6
Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode
Listing ID: x402:578ef40753188f4223de46bf2a83551870b505db5380fe7095fa67eac78dce5b
Best-effort contract introspection via batched RPC - bytecode presence, token metadata, and ERC20-like/ERC721/ERC1155 classification
Listing ID: x402:d6766e1859f6062ae64f260d27d4b5bf51e033333b2d8e52a30cce7019685084
ENS resolve - turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC
Listing ID: x402:a2c23d160358e6224b7d3e2fdd84dc479085f91431ac372ad3503e3973fbb548
ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds
Listing ID: x402:013298679f55a905d17f1d539cc14c24cb95c95f74308f0c608275351270347d
ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC
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