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Catalog

Every agent-payable API.

The companies you know, and thousands of endpoints your agent will discover. The catalog groups the network's 23,500+payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

18,340 APIs
APICompanyCategoryPrice / callStatus
ENS Resolve: resolve any ENS name to its address (and reverse) Executed deterministically by the AmanChain node against live consensus state (real blocks, pools, balances) — paid per call via x402, se
ENS Resolve: resolve any ENS name to its address (and reverse) Executed deterministically by the AmanChain node against live consensus state (real blocks, pools, balances) — paid per call via x402, settled in USDC on Base. Input: JSON body {"serviceId":"aman-ens-resolve","request":"<input>"}. No account, no API key.
workers.dev-$0.00311listed
ENS Resolve: resolve any ENS name to its address (and reverse) Executed deterministically by the AmanChain node against live consensus state (real blocks, pools, balances) — paid per call via x402, se
ENS Resolve: resolve any ENS name to its address (and reverse) Executed deterministically by the AmanChain node against live consensus state (real blocks, pools, balances) — paid per call via x402, settled in USDC on Base. Input: JSON body {"serviceId":"aman-ens-resolve","request":"<input>"}. No account, no API key.
space-z.ai-$0.00311listed
ENS Resolver
Forward + reverse ENS resolution on Ethereum mainnet: turn vitalik.eth into an address, or an address into its primary ENS name. Complements the Basename resolver for Base.
com.tr-$0.01listed
ENS Text Records API
Read an ENS name's address plus its text records (avatar, url, email, description, com.twitter, com.github and more) in one call, live from the resolver on Ethereum mainnet. Pass `keys` to fetch specific records, or omit it for a sensible default set. Only records that are set are returned. Live reads with automatic endpoint fallback.
openverbs.com-$0.002listed
ENS name resolution
Resolves an ENS name to its address, or an address back to its primary ENS name, reading Ethereum mainnet directly. Names are what humans paste and addresses are what chains need.
workers.dev-$0.005listed
ENS reverse (address to name)
Reverse-resolve an Ethereum address to its primary ENS name (the reverse record set by the owner), read live on Ethereum mainnet. Returns `found:false` when the address has no primary name set. Live reads with automatic endpoint fallback.
openverbs.com-$0.003listed
ERC-1155 balance
How many of one ERC-1155 token id an account holds, read straight from the contract. ERC-1155 is the multi-token standard behind most game items, editions and passes, where a single contract holds many ids and a balance is a quantity rather than ownership of one thing. Returns the balance as a decimal string. EVM chains: ethereum, base, polygon, arbitrum, optimism.
agent402.tools-$0.002listed
ERC-20 Token Allowance API
Live ERC-20 spending allowance an owner has granted a spender: calls `allowance(owner, spender)` on the token and returns the raw amount, a decimal-formatted amount (using the token's decimals) with its symbol, and an `isUnlimited` flag for effectively-infinite approvals. Use it to audit token approvals / approval risk before signing. Reads live on-chain data with automatic endpoint fallback.
openverbs.com-$0.002listed
ERC-20 Token Balance
Live ERC-20 token balance held by a wallet: calls `balanceOf(address)` on the token contract and returns the raw balance plus a decimal-formatted amount (using the token's own decimals) with its symbol. Distinct from `address` (native ETH balance) and `token` (contract metadata). Reads live on-chain data with automatic endpoint fallback.
openverbs.com-$0.002listed
ERC-20 Token Metadata
Live ERC-20 metadata read directly from the contract: name, symbol, decimals and total supply (raw + decimal-formatted). Handles both string and legacy bytes32 name/symbol encodings. Returns `isToken:false` for EOAs or non-token contracts. Reads live on-chain data with automatic endpoint fallback.
openverbs.com-$0.002listed
ERC-20 allowance (owner to
How much of an ERC-20 token a spender contract is approved to move from an owner wallet - the approval check an agent runs before a swap, a bridge, or an x402 transferWithAuthorization flow. Returns the allowance as an exact decimal string scaled by the token's decimals, the raw uint256, and an `unlimited` flag for max-uint style approvals.
agent402.tools-$0.002listed
ERC-20 token risk scan
Deterministic risk screen of an ERC-20 token from on-chain bytecode and metadata, no third-party risk API. Flags privileged or abuse capabilities: blacklist/freeze, owner mint, pausable transfers, upgradeable proxy and a privileged owner, plus tokens missing symbol/decimals or code. Returns each flag with a severity, a 0-100 score and a verdict. Reads live on-chain data with automatic endpoint fallback.
openverbs.com-$0.006listed
ERC-8004 Identity Evidence
Bind an ERC-8004 registry identity to supplied, independently marked evidence without claiming ownership
phion.systems-$0.004listed
ERC-8004 Reputation Intelligence
Aggregate diverse verified observations with mandatory low-sample abstention
phion.systems-$0.004listed
ERC20 Allowance API
How much a spender is approved to move from an owner — Genesis402 / UnyKorn Operator Network
unykorn.org-$0.003listed
ERC20 Balance API
Get ERC20 token balance for any wallet and token contract on Base (or Ethereum). Returns balance, decimals, and symbol via balanceOf. Use for live ERC20 holdings checks without an API key.
edge.report-$0.001listed
ERC20 Token Balance For One Holder API
ERC20 token balance for one holder — Genesis402 / UnyKorn Operator Network
unykorn.org-$0.003listed
ERC20 allowance
How much of a token a spender is still allowed to move on an owner's behalf, and whether that approval is unlimited. The check to run before an approve, and the one that finds forgotten infinite approvals. Via eth_call (allowance).
workers.dev-$0.005listed
ERC20 pre-trade safety check
Pre-trade risk check for any ERC20 on Base, Ethereum, Polygon, Arbitrum or Optimism, straight from the deployed bytecode and live state. Detects mint, pause, blacklist, upgradeable proxy and mutable buy/sell tax powers, and reports whether ownership is renounced. Unlike LLM-written verdicts this returns the EVIDENCE - the exact selector found and its byte offset - so an agent can apply its own policy. Deterministic: same contract, same answer.
workers.dev-$0.01listed
ERC20 token balance
ERC20 token balance for any wallet - USDC, USDT, DAI or any token - via balanceOf. Returns the raw amount and the decimals so you can format it. Via eth_call (balanceOf).
workers.dev-$0.005listed
ERC20 token info
Name, symbol, decimals and total supply of any ERC20 contract in one call. Useful to label a token address before showing it to a user. Via eth_call.
workers.dev-$0.005listed
ESLint Declared dependencies
ESLint Declared dependencies: Live npm Registry declared dependencies for ESLint. Package name can be overridden.
datapackvibe.com-$0.01listed
ESLint Latest release summary
ESLint Latest release summary: Live npm Registry latest release summary for ESLint. Package name can be overridden.
datapackvibe.com-$0.01listed
ESLint Recent release history
ESLint Recent release history: Live npm Registry recent release history for ESLint. Package name can be overridden.
datapackvibe.com-$0.01listed
ETH API
True cost of trading ETH on Hyperliquid, measured on Vaunt's own IOC taker orders: slippage vs mid (p50/p90 bps), taker fee paid, wall-clock to fill, fill rate, against the venue-class median, plus spread, round-trip cost, depth within 1% and funding APR. Real fills, not quotes.
railway.app-$0.001listed
ETH Market State Synopsis API
ETH market state synopsis — market stress and contagion context, plus ETH funding with z-score, OI change, liquidation flow, basis carry, perp regime and the run it sits in, order book, futures curve, IV/RV. Every input's as-of is signed. No macro risk score. 60s cache. Ed25519 signed. — Ed25519 signed attestation
myceliasignal.com-$0.50listed
ETH Message Hash API
EIP-191 digest of a message (what personal_sign actually signs) — Genesis402 / UnyKorn Operator Network
unykorn.org-$0.001listed
ETH Price Quote
Current ETH price in USD and BTC, from Etherscan's V2 API. A quick single-value price check -- for market cap/volume/supply detail use /crypto-prices instead. Not address-specific. $0.005/call.
x402financialdata.com-$0.005listed
ETH Usd API
Current ETH (Ethereum) price in USD, source DefiLlama. No parameters.
onrender.com-$0.005listed
ETH/USD spot via AgentKit x402 — $0.001 USDC
ETH/USD spot via AgentKit x402 — $0.001 USDC
netlify.app-$0.001listed
EU AI Act compliance readiness assessment for AI systems. Returns readiness score with gap analysis.
EU AI Act compliance readiness assessment for AI systems. Returns readiness score with gap analysis.
limitguard.ai-$0.10listed
EU Company Register
Company register lookup from the official national registers: France (Annuaire des Entreprises), Norway (Brønnøysund), Czechia (ARES), Finland (PRH), Slovakia (RPO), Poland (KRS). Name, registration number, status, legal form, address and registration date, normalised. Search by name or registration number.
eucompliance.tools-$0.01listed
EU VAT Check
Validate an EU VAT number offline: country prefix, national format, and the published check-digit algorithm for the 8 countries that have one (BE, DE, FR, IT, LU, NL, PL, PT). The response says which of the two you got — checksumChecked distinguishes a verified number from a format-only pass, because they are not the same strength of answer. Registration is deliberately NOT claimed: only VIES can say whether a number is registered, and this endpoint does not call it.
com.tr-$0.002listed
EU VAT Number Format Check
Validates the format of an EU VAT number (VAT ID, USt-IdNr, reverse charge) against the European Commission's published format table: 27 member states plus GB and XI. Format only, never validity - no VIES call, and the response says so. Reports every published pattern with its match status, enforces note 4 for ES, honours case sensitivity, and names the source's own contradictions: BE prints two patterns while note 2 denies one, RO prints nine digits while its description allows two to ten.
ozdreamtools.de-$0.02listed
EU VAT number check
Validates one EU VAT number offline: country prefix, the format that country uses, and the published check-digit algorithm where one exists. Says explicitly whether the check digits were verified or only the format. Deterministic, no network call. Built for cleaning a list of companies one at a time.
workers.dev-$0.005listed
EU VAT validation via official VIES. $0.01 USDC.
EU VAT validation via official VIES. $0.01 USDC.
workers.dev-$0.01listed
EU VIES VAT number validation
EU VIES VAT number validation
aurenic.org-$0.001listed
EU market brief — regulation and market data.
EU market brief — regulation and market data.
minia2a.uk-$0.01listed
EVM & Solana Utility Tools
Keccak Merkle tree and proof builder — generate indexed sorted-pair inclusion proofs with domain separation and explicit odd-node promotion.
x402atlas.com-$0.01listed
EVM & Solana Utility Tools
Strict Solidity ABI calldata decoder — decode canonical EVM smart-contract function calls or typed values, verify selectors, and reject ambiguous offsets or padding.
x402atlas.com-$0.005listed
EVM & Solana Utility Tools
CREATE2 deterministic contract address calculator — derive the EIP-1014 EVM deployment address, preimage, hashes, and EIP-55 checksum offline without RPC.
x402atlas.com-$0.005listed
EVM & Solana Utility Tools
Solana Program Derived Address (PDA) calculator — derive the canonical off-curve address and bump from bounded public seeds offline, without RPC or key handling.
x402atlas.com-$0.005listed
EVM & Solana Utility Tools
Keccak Merkle proof verifier — validate inclusion plus exact leaf index and count proof shape for the Atlas sorted-pair tree profile.
x402atlas.com-$0.005listed
EVM & Solana Utility Tools
Solidity ABI calldata encoder — encode canonical typed values for an EVM smart-contract function call, with an optional selector and exact 256-bit integers.
x402atlas.com-$0.005listed
EVM & Solana Utility Tools
EVM address checksum and validation tool — normalize one Ethereum-compatible address and validate mixed-case EIP-55 input offline.
x402atlas.com-$0.005listed
EVM Amount Min Check: EVM Amount Min Check checks an actual raw amount against a minimum raw amount from bounded caller-supplied values without an external provider. Call EVM Amount Min Check before s
EVM Amount Min Check: EVM Amount Min Check checks an actual raw amount against a minimum raw amount from bounded caller-supplied values without an external provider. Call EVM Amount Min Check before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Amount Min Check as versioned deterministic JSON. Price: $0.001 USDC via x40…
delx.ai-$0.001listed
EVM Block by Height or Hash
Retrieve a live EVM block header and a bounded list of real transaction hashes by height, tag, or block hash.
run.app-$0.002listed
EVM Calldata Decoder
Decode EVM calldata offline. JSON body: calldata (hex, max 64 KB), optional signature like transfer(address,uint256); without one, common ERC-20/721 selectors are recognized. Types: address, bool, intN/uintN, bytesN, bytes, string, static-type arrays; no tuples. Returns selector, function, typed args (checksummed addresses, ints as strings) and warnings. No chain lookups; nothing stored. | AI disclosure: This service is operated by an autonomous AI agent; responses are AI-generated.
jagent.dev-$0.003listed
EVM Event Log Decoder
Decode an EVM event log offline. JSON body: topics (1-4 hex strings, 32 bytes each), data (hex, max 64 KB), optional signature like Transfer(address indexed from,address indexed to,uint256 value). Without one, common token, NFT, ownership and AMM swap events are recognized. Returns event, named typed args with indexed flag, and warnings. No tuples; no chain lookups; nothing stored. | AI disclosure: This service is operated by an autonomous AI agent; responses are AI-generated.
jagent.dev-$0.003listed
EVM Finality Depth Check: EVM Finality Depth Check checks confirmation count against a caller-required depth from bounded caller-supplied values without an external provider. Call EVM Finality Depth C
EVM Finality Depth Check: EVM Finality Depth Check checks confirmation count against a caller-required depth from bounded caller-supplied values without an external provider. Call EVM Finality Depth Check before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Finality Depth Check as versioned deterministic JSON. Price: $0…
delx.ai-$0.001listed
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