Browse indexable blockchain and crypto x402 offerings, including provider, method, and service details.
8146 indexable offerings in this category.
Simulate any read-only Ethereum contract call via eth_call — pass a contract address and encoded calldata, get the raw return value, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The universal contract-read primitive for agents that need a view function not covered by a dedicated endpoint. Live public RPC; one paid call.
x402 v2 paid EVM token contract risk API on Base and BSC. For 0.01 USDC, returns EIP-1967 proxy detection, owner control and renouncement status, and block-explorer source-code verification. Built for AI agents, bots, and automated token screening.
Read one 32-byte storage slot from a contract, the raw state under whatever the source code calls it. Returns the word as hex plus three readings of the same bytes - unsigned integer, address (low 20 bytes) and boolean - because a slot is untyped on chain and only the caller knows which it meant. Useful for proxy implementation slots, paused flags and any value the ABI does not expose. EVM chains: ethereum, base, polygon, arbitrum, optimism.
Risk check for an EVM contract/token address
On-chain contract risk score: detects upgradeable proxies and privileged functions from live bytecode. Use before trading/interacting with an unfamiliar contract.
On-chain contract risk score: detects upgradeable proxies and privileged functions from live bytecode. Use before trading/interacting with an unfamiliar contract.
Live EIP-1559 gas on Ethereum, Base, Arbitrum, Optimism, Polygon or BNB: base fee, slow/standard/fast priority tiers from the last 20 blocks, ready-to-use maxFeePerGas values, and estimated cost of an ETH transfer, ERC-20 transfer, approve and Uniswap swap.
x402 payability check for sellers: can a real buyer actually pay your endpoint? Sends one payment signed by a fresh unfunded key through your server and facilitator. A payable endpoint fails only on balance; anything else (bad schema, long description, wrong EIP-712 domain, facilitator error) is reported with the exact reason. Base USDC, x402 v1 and v2.
Fast token risk verdict (1-3 s) for trading agents: LOW/MEDIUM/HIGH with reasons for any ERC-20. Who controls it (renounced, single key, Safe, timelock), upgradeable proxy, admin powers in the bytecode (mint, blacklist, pause, sell tax, trading switch), Sourcify status, DEX liquidity, buys/sells and pair age. Ethereum, Base, Arbitrum, Optimism, Polygon, BNB. Use before buying a token. Not financial advice.
What is this address? Classifies any EVM address before you send to it or trust it: EOA, EIP-7702 delegated EOA (with delegate), Safe multisig (threshold and owners), timelock (delay), ERC-20 token, upgradeable proxy or other contract, plus native balance and nonce. Ethereum, Base, Arbitrum, Optimism, Polygon, BNB.
Convert between XRP and drops — Genesis402 / UnyKorn Operator Network
Converts data or values through a paid convert endpoint on Base.
Returns KYB pricing and accepted crypto payment details (assets, pay-to addresses, networks, amounts, timeouts) for Convrgent KYB transactions.
Delete a human profile from the vault. Near-free pricing maintains consistent x402 payment flow for wallet identification.
Solana market analysis written by an LLM for a request of up to 4000 characters. Paid per request in USDC; the result is fetched from the poll URL in the response.
Recent trades for one Solana token, each with the trader's history: PnL, win rate, bundle membership, and smart-money flag.
The 20 most recent buys by the top Cookin trading agents, newest first, each with quality signals plus when it was bought and by which agent.
Recently graduated Pump.fun tokens, with quality signals and holder behavior.
Full Cookin snapshot for one Solana token: quality score, holders, bundles (coordinated wallets), KOL positions, holder behavior cohorts, pump/dump signals, and a green/yellow/red rating per metric.
Launch history of one token deployer: every token, bond rate, and peak market caps.
Pump.fun tokens currently pumping, with quality signals and holder behavior.
Trading profile of one Solana wallet: PnL, ROI, win rate, bundle and smart-money flags.
Newly launched Pump.fun tokens that passed Cookin's rug filters, with quality signals.
One Jev grade of any job (an x402 hire, an ERC-8183 job, an A2A/MCP delivery) on Base, Arbitrum, Arc, Robinhood, Monad or Solana: code reads the job, Jev answers four closed questions, code composes the verdict.