282 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Status of an EVM transaction by hash: pending, success or failed, block, confirmations, timestamp, from/to, value, gas used, fee (plus L1 fee on Base/Optimism) and ERC-20 token transfers. Searches Ethereum, Base, Arbitru...
How much a spender (router, Permit2, protocol) is approved to move from an owner's ERC-20 balance, with an unlimited-approval flag. Use to check approvals before a swap or to audit risky approvals.
An EVM block by number or tag (latest, finalized, safe): hash, parent, time, miner, gas used and limit, base fee, size and its transaction hashes.
Estimate the gas a transaction will use (eth_estimateGas) and its cost at the current gas price, with a 20% buffer; fails clearly when the call would revert. Use before signing.
Live state of an EVM network: chain ID, latest block number and age, gas price, base and priority fee, block gas use and tx count. Use as a health check before sending transactions.
Current owner of an ERC-721 NFT by contract and token ID. Use to verify ownership for token gating, sales or airdrops.
Next transaction nonce of an EVM address (confirmed and pending), pending tx count, native balance, contract flag and EIP-7702 delegate. Use before signing or to detect stuck transactions.
Detect upgradeable proxies: EIP-1967 transparent/UUPS, beacon, EIP-1822, ZeppelinOS, EIP-1167 clones and Safe-style proxies, returning implementation, admin and beacon addresses. Use for audits and to fetch the real ABI.
Receipt of a mined EVM transaction: success or revert, gas used, effective gas price, fee (and L2 L1 fee), created contract and event logs with Transfer and Approval decoded. Use to confirm a payment or swap.
Total supply, name, symbol and decimals of an ERC-20 or ERC-721 contract, read on-chain. Use for market-cap math, supply checks and token due diligence.
Use when an agent needs x402 market totals. Returns catalogue size and 30-day totals: services, calls, unique paying wallets, with the snapshot hash
ABI and readable function/event signatures of a verified smart contract from Sourcify, with contract name, compiler, licence, proxy implementation and deployer. Use before calling or decoding a contract.
Simulate any read-only contract call — Genesis402 / UnyKorn Operator Network
Estimate the gas a transaction would use, before signing it — Genesis402 / UnyKorn Operator Network
Transaction receipt — did it succeed, what did it cost, what did it emit — Genesis402 / UnyKorn Operator Network
Convert one bounded fiat amount using the latest successfully fetched European Central Bank daily foreign-exchange reference table. Forest returns the ECB observation date and deterministic cross-rates through EUR. Fresh...
Live gas prices: EIP-1559 base fee plus low/medium/high priority tiers in gwei, and the estimated cost of a simple transfer.
Spot price of a token pair read directly from the deepest Uniswap v3 pool on Ethereum, Base, Arbitrum, Optimism or Polygon: price, inverse, fee tier, tick and liquidity. Tokens by symbol or address.
EVM Nonce Gap Check: calculates the gap between pending and proposed transaction nonces using only bounded caller-supplied values. Call when you need a bounded evm nonce gap check result before signing, submitting, repla...
Look up supported blockchain network metadata and chain IDs for $0.001 USDC. Static first-party registry only—no live RPC, balances, blocks, receipts, gas, or contract reads. Call when you need this bounded result withou...
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...
Drop-in OpenAI Embeddings endpoint: POST {input: string | string[], model, encoding_format: float|base64, dimensions} and get {object: "list", data: [{embedding, index}], model, usage}. Models (Cloudflare Workers AI): bg...
ERC-20 token metadata: name, symbol, decimals and total supply for any token contract on Base, Polygon, Arbitrum, Optimism or Ethereum.
EVM Amount Min Check: checks an actual raw amount against a minimum raw amount using only bounded caller-supplied values. Call when you need a bounded evm amount min check result before signing, submitting, replacing, or...