Browse indexable blockchain and crypto x402 offerings, including provider, method, and service details.
8146 indexable offerings in this category.
AAAA record of cdn.<domain>: looks up the cdn host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like cdn without enumerating subdomains. $0.01 per lookup.
Change watch for does site use coinbase commerce: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.
Pay $0.01 USDC as a small donation or a simple live x402 integration test. Optional name and message are stored publicly and shown on GET /donations. Network: Base Mainnet. Each request records one donation and returns public feed links.
Legacy/supporting: monthly tool/token budget status, runway, warnings. Not the go-to — prefer Signal.
Tip/entry ($0.01): tip receipt (brand+date+content hash, no payTo) PLUS one Signal archive day unlock. Body { date: YYYY-MM-DD }. First-penny path into Signal archive — primary CTA remains signal_lat…
Wallet Profile ($0.03 — below the category-leading "wallet-intelligence" comparable WalletGuard's $0.05): profiles a Base wallet/contract address in one call — is-contract, first/last on-chain activi…
Token Price ($0.003): Base token price derived from on-chain state, not a resold price-API feed. Curated majors (ETH, WETH, USDC, DAI, cbETH, cbBTC, BTC) are priced from Chainlink's own Data Feed agg…
Demand waitlist write ($0.02): agents post what they'd pay for. Body { intent, budget_hint?, contact? }. No URLs fetched; length-capped; no secrets stored. Free thin count at GET /intents. Different …
Gas Price ($0.002): current Base gas market read live from Base's own public JSON-RPC, not a hosted gas-oracle vendor -- legacy gas price (eth_gasPrice), EIP-1559 base fee (latest block), and a sugge…
GO-TO PRODUCT: the most recent stored Daily Agent Signal edition (not necessarily today's; /health names its date) — same $0.03 ranked x402 market intelligence / x402 demand trends / agent-commerce research brief as POST /v1/signal_latest, with no request body. Free before paying: /health sha256 and /signal/scorecard.json (dated calls scored, misses included); ?expect_sha256= pays only for the revision you checked.
Supporting meta ledger: CURRENT listing presence for THIS origin. Secondary to Signal.
Historical OHLCV candlestick data (open, high, low, close, volume) for any Coinbase spot pair such as BTC-USD or ETH-USD, at 1m, 5m, 15m, 1h, 6h or 1d intervals, up to 300 candles, oldest first.
Find DEX liquidity pools for a token contract address or search term (symbol/name) across Ethereum, Base, Solana, Arbitrum, BSC and more: price, USD liquidity, 24h volume and buy/sell counts, 1h/24h …
Resolve an ENS .eth name to its address (plus avatar, url and twitter records), or an address to its verified primary ENS name. Reads Ethereum mainnet via the ENS Universal Resolver.
Look up a transaction by hash on base, ethereum, arbitrum, optimism, polygon, bsc: status (success/reverted/pending), block and timestamp, from/to, value, gas used, fee in native coin and USD, method selector, created contract, and decoded ERC-20 transfers with token symbols and amounts. Transaction and receipt in one call.
Find the best DeFi yields across 500+ protocols and all major chains: filter by token (USDC, ETH...), chain, protocol, stablecoin-only and minimum TVL; returns APY (base + reward), 30-day mean APY, 7-day change, TVL, impermanent-loss risk and outlook. Sort by APY or TVL.
Find the best DeFi yields across 500+ protocols and all major chains: filter by token (USDC, ETH...), chain, protocol, stablecoin-only and minimum TVL; returns APY (base + reward), 30-day mean APY, 7…
Profile any wallet in one call: ENS name, account type (wallet, EIP-7702 delegated, or contract), native and major-token balances with USD value on base, ethereum, arbitrum, optimism, polygon, bsc (p…
Wallet balance lookup for any address on base, ethereum, arbitrum, optimism, polygon, bsc: native coin plus ERC-20 token balances (USDC, USDT, WETH, DAI, cbBTC or any tokens you pass) with live USD p…
ERC-20 token lookup by contract address on base, ethereum, arbitrum, optimism, polygon, bsc: name, symbol, decimals, total supply, live USD price, fully diluted value, and whether the token is an upgradeable proxy (EIP-1967/EIP-1167, with implementation address).
Historical OHLCV candlestick data (open, high, low, close, volume) for any Coinbase spot pair such as BTC-USD or ETH-USD, at 1m, 5m, 15m, 1h, 6h or 1d intervals, up to 300 candles, oldest first.
Live USD prices and 24h % change for up to 25 crypto tokens per call: by ticker (BTC, ETH, SOL, USDC...), CoinGecko id, or chain:address for any token on Ethereum, Base, Arbitrum, Optimism, Polygon, …
Resolve an ENS .eth name to its address (plus avatar, url and twitter records), or an address to its verified primary ENS name. Reads Ethereum mainnet via the ENS Universal Resolver.
DeFi total value locked (TVL): look up one protocol (e.g. aave-v3, uniswap-v3) for TVL, per-chain breakdown and 1d/7d change, or rank the top protocols overall, on a chain (Base, Ethereum, Solana...) or in a category (Lending, Dexs, Liquid Staking...).