Evm call x402 REST usage
Simulate any read-only contract call — Genesis402 / UnyKorn Operator Network
0.003 USDC per call
per call
Rpc
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Evm estimate gas x402 REST usage
Estimate the gas a transaction would use, before signing it — Genesis402 / UnyKorn Operator Network
0.003 USDC per call
per call
Evm receipt x402 REST usage
Transaction receipt — did it succeed, what did it cost, what did it emit — Genesis402 / UnyKorn Operator Network
0.003 USDC per call
per call
VerifyOracle x402 REST usage
Live Base Mainnet (chainId 8453) gas price and EIP-1559 baseFeePerGas directly from Base public RPC.
0.001 USDC per call
per call
Multichain RPC/gas x402 REST usage
Live gas prices: EIP-1559 base fee plus low/medium/high priority tiers in gwei, and the estimated cost of a simple transfer.
0.001 USDC per call
per call
Chain GAS Price x402 REST usage
Current Base mainnet gas price (wei/gwei), EIP-1559 base_fee_gwei/priority_fee_gwei, and gas_price_usd. Use when an agent must estimate gas cost in USD before sending a Base transaction.
0.002 USDC per call
per call
AgentRXI x402 REST usage
JSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same...
0.002 USDC per call
per call
Multichain RPC/token x402 REST usage
ERC-20 token metadata: name, symbol, decimals and total supply for any token contract on Base, Polygon, Arbitrum, Optimism or Ethereum.
0.002 USDC per call
per call
Agent Hub x402 REST usage
JSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same...
0.001 USDC per call
per call
Base Block x402 REST usage
Read the head of the Base chain, or a specific block. POST {} for the latest block, or {"number":12345678} for one by height. Returns number, hash, unix timestamp, gas used and transaction count. Useful as an authoritati...
0.001 USDC per call
per call
Nonce x402 REST
Chain nonce on Base (cycle 228, x402 $0.01) - the transaction count of an account, the nonce its next transaction must carry. GET ?address=<0xWALLET> OR ?block=latest|pending OR POST application/json {address}. KEYLESS p...
0 USDC per call
per call
Chain Info x402 REST
Chain info on Base (cycle 228, x402 $0.01) - GET ?sample=1|2|3 OR POST application/json {}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. One-call chain state snapshot: the chain...
0 USDC per call
per call
Block Number x402 REST
Paid chain block number read on Base (cycle 227, x402 $0.01) - GET ?sample=1|2|3 OR POST application/json {}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. Returns the current blo...
0 USDC per call
per call
Base Gas Price x402 REST
Paid Base chain head and gas price (cycle 225, x402 $0.01) - GET ?sample=1|2|3 OR POST application/json {}. KEYLESS public Base JSON-RPC -- no key, no account, no signup. Returns the current block number, the block times...
0 USDC per call
per call
Wallet Balance Lookup x402 REST
Live native-asset wallet balance lookup across 6 chains (Bitcoin, Ethereum, Base, Solana, TRON, Ronin) via public RPCs. One call returns the current balance as JSON. No API key, no signup — x402 per-call payment only.
no price published
is-port-111-open x402 REST
Is TCP port 111 (RPC) open on a host? Attempts a connection from Cloudflare's edge and reports open/closed/filtered with the connect time; Cloudflare-fronted hosts are reported as inconclusive because their edge answers...
no price published
is-port-111-open-watch x402 REST
Change watch for is port 111 open: runs the check, compares it with the result from your previous call for the same host (kept 90 days) and returns the current answer, changed true/false, the fields that changed with bef...
no price published
is-port-111-open-bulk x402 REST
Bulk is port 111 open: up to 20 hosts in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents...
no price published
santyvv-data x402 REST
Decentralised exchange volumes: totals, 24h/7d/30d windows, per-chain and per-protocol breakdowns, all in one payload cached at the edge. For market-structure work and volume share screens.
0.01 USDC per call
per call
Contract read (view call), Arc x402 REST
Contract read on Arc: one view call on any contract, decoded, with block and time. ?address=0x...&fn=function balanceOf(address) view returns (uint256)&args=["0x..."] (args a JSON array, optional; &block=N for a past blo...
0.001 USDC per call
per call
eth_call read-only contract call x402 REST
Read-only contract call (eth_call) on Ethereum, Base, Arc or BNB Chain: pass ?to=&data= (hex calldata) and optional &from=, get the returned bytes or the revert reason, at a named block. Nothing is signed or sent.
0.001 USDC per call
per call
x402-logscan x402 REST
Fetch eth_getLogs results for a chain/address/topic filter, with automatic fallback across multiple public RPC endpoints.
0.01 USDC per call
per call
Base ETH Balance Oracle x402 REST
ETH balance of a Base mainnet address, incl. balance_usd.
0.001 USDC per call
per call
Penger VerifyOracle x402 REST
Curated feed of active, verified cash/crypto coding and agent bounties across GitHub, Frantic, and SwarmMemo.
0 USDC per call
per call