Browse indexable blockchain and crypto x402 offerings, including provider, method, and service details.
8143 indexable offerings in this category.
What is this Base address? Matches a sourced registry of known protocol, exchange, bridge, locker and burn addresses (each with the docs/deployments/Basescan source it came from), then reads the chain: contract vs EOA (EIP-7702 delegation shown), ERC-4626 vault (asset()), Safe multisig (getThreshold), DEX pool interface (token0/token1). Unmatched addresses are reported as unlabelled, never guessed.
Returns reputation data for blockchain addresses.
Batch-normalize or batch-geocode up to 100 Japanese (JP) addresses in a single call — same processing as POST /normalize and POST /geocode, with per-item success/error reporting. Dynamic pricing: a small per-item fee. Use for bulk-cleaning an address column or import file.
Recent transaction history for an address, normalized across Ethereum, Base, Arbitrum, Optimism, Polygon, Bitcoin, and Solana -- direction, counterparty, and value where the chain's data model makes that derivable.
Returns network-wide totals: total x402 events, service count, and a UA classification breakdown (agent vs browser vs bot). Use it to benchmark your service's agent-traffic share against the network.
USE WHEN: An autonomous trading agent or sniper bot must verify if a token on Base, Ethereum, or Solana is a honeypot, check buy/sell taxes, and inspect DEX liquidity before executing a swap.
Fetch a ranked list of Aerodrome liquidity pools on Base, including key metrics like TVL, volume, and fees for top pools.
ERC-20 allowance check on Base: how much a spender is still approved to move from an owner's token balance, and whether the approval is unlimited. Run before a swap, an approve or a revoke. Input: token, owner, spender
Current gas price on Base in gwei: base fee, suggested priority fee and max fee per gas, read live from the chain
x402 endpoint audit: can a paying agent actually pay this API? Probes any x402 URL and validates its 402 payment requirements (CAIP-2 network, USDC asset, payTo checksum, amount, EIP-712 domain, resource URL, Bazaar discovery). Returns pass, warn or fail, a 0-100 score and a fix for every failure
NFT metadata on Base for an ERC-721 or ERC-1155 token: token URI plus the name, image and attributes it points to, resolved from IPFS, Arweave, data URIs or https
ERC-20 token balance of a wallet on Base (USDC or any other token), formatted with symbol and decimals. Input: wallet address and token address
What is this Base address? Wallet (EOA) or smart contract, code size, proxy implementation address, and whether it is an ERC-20, ERC-721 or ERC-1155 token
Token price on Base by contract address: live USD price and pool liquidity from Uniswap v2/v3 and Aerodrome. Works for any token with a DEX pool, including newly launched ones
Wallet portfolio value on Base: ETH plus major tokens (or up to 20 tokens you choose), each holding priced in USD from live DEX prices, with the total. Input: wallet address
Token info for any ERC-20 on Base by contract address: name, symbol, decimals and total supply
Is this Base token safe to buy, or a honeypot, rug pull or scam? Simulates a real buy and sell to prove the token can be sold and to measure buy and sell tax, then checks mint, blacklist, pause and fee powers, proxy upgradeability, owner and DEX liquidity. Input: token address. Returns a verdict (low, caution, high, avoid), a 0-100 risk score and the evidence. Check before an agent trades a token. Try it free first: 3 calls a day at POST /v1/base/token/risk/trial
Base block lookup by number or tag (latest, safe, finalized): timestamp, gas and transaction count
Wallet balance on Base: the native ETH balance of any address, read live from the chain. Input: address
Base transaction receipt by hash: success or reverted, gas used, and the decoded ERC-20 Transfer events showing which tokens moved between which addresses
Estimate the gas and the cost in ETH and USD of a Base transaction before signing it. Input: to, and optionally from, data and value
Who owns this NFT? Current owner of an ERC-721 token on Base by contract address and token id (ownerOf)
Recent ERC-20 transfers on Base for a token, a wallet, or both: who sent how much to whom, across up to 2,000 recent blocks (100 results max)
Base transaction lookup by hash: sender, recipient, value, function selector, block, and whether it succeeded or reverted