AgentIndex · explore
Vextorium — The x402 Payment Engine
1,024 resources on api.vextorium.com · browse everything
Pay-per-call data APIs for AI agents: on-chain data (Base, Ethereum, Solana payments), DeFi, FX and AI text tools. USDC via x402. the operator’s own description
Most recently seen
- Vextorium
Verify an Ethereum signature: a personal_sign (EIP-191) message or EIP-712 typed data. Recovers the signer address and, if you pass one, confirms it matches. Lo
- Vextorium
Supply yield for an asset on the most used lending markets (Aave v3, Morpho, Compound v3, Spark, Euler, Fluid) by chain: total, base and reward APY and TVL, bes
- Vextorium
Convert an amount between cryptocurrencies and currencies (0.5 BTC to ETH, 100 USDC to EUR, 1000 EUR to SOL) with live DefiLlama prices and ECB rates.
- Vextorium
Current price of a list of cryptocurrencies by ticker (BTC, ETH, SOL...) or chain:contract, in USD or any ECB currency (EUR, GBP, JPY...). The simplest way to g
- Vextorium
Search x402 paid services in the Bazaar by keyword (e.g. weather, solana, search) ranked by real usage, with price, networks and ready-to-pay URL. Lets an agent
- Vextorium
Most used x402 paid services from the public x402 Bazaar catalog: unique payers and calls in 30 days, price, networks and description, plus ecosystem totals. Op
- Vextorium
Basis of Hyperliquid perpetuals: mark vs oracle (spot) price in basis points, premium, hourly and annualized funding and open interest; ranked by funding extrem
- Vextorium
Implied probability distribution of a crypto price from Polymarket ladder markets ("Will BTC be above X on date D?"): probability for each price level and date
- Vextorium
How the probability of a Polymarket outcome moved over the last hour, day, week, month or all time, with max, min and change in percentage points.
- Vextorium
Detail of one Polymarket market by slug or id: question, resolution rules and source, outcome probabilities, best bid/ask, last price, volume, liquidity and dat
- Vextorium
Open Polymarket prediction markets: top by 24h volume or liquidity, or matching a search (elections, crypto, sports, economy...), with the implied probability o
- Vextorium
Resolve a .ton domain (TON DNS) to its wallet address, or find the .ton domain of a TON address.
- Vextorium
Profile of a TON jetton (token): name, symbol, description, decimals, supply, whether more can be minted, admin and scam flag.
- Vextorium
Profile of a Tron TRC-20 token read from its contract: name, symbol, decimals and total supply.
- Vextorium
What it costs right now to send USDT (TRC-20) and TRX on Tron: energy and bandwidth prices, typical energy of a USDT transfer to an address with and without USD
- Vextorium
Minimum SOL for a Solana account of a given size to be rent-exempt (165 bytes = token account, 82 = mint, 0 = wallet), with common reference sizes.
- Vextorium
Total supply of a Solana token with decimals, mint authority, freeze authority and token program.
- Vextorium
Balance of one SPL or Token-2022 token in a Solana wallet, with decimals and number of token accounts.
- Vextorium
Current finalized Solana slot and block height, latest block time and a recent blockhash with its last valid height, ready to build transactions.
- Vextorium
One-call risk verdict for a Solana token: 0-100 score and level with every signal explained: active mint or freeze authority, top-holder concentration, Jupiter
- Vextorium
One-call risk verdict for an ERC-20 token on Base, Ethereum, Arbitrum, Optimism or Polygon: 0-100 score and level with every signal explained: admin powers (min
- Vextorium
Randomness for agents: flip coins, roll dice, draw numbers in a range, pick from a list or shuffle it. Cryptographically secure by default; with verificable=tru
- Vextorium
Trusted UTC time (NTP-synced server clock) with millisecond Unix timestamps, ISO week and the latest Ethereum and Base block times as independent references. Fo
- Vextorium
Run a read-only eth_call with pre-encoded hex calldata and get the raw result split into 32-byte words, or the revert reason. Works on Base, Ethereum, Arbitrum,
- Vextorium
Detect whether a contract is an upgradeable proxy (EIP-1967 transparent/UUPS, beacon, ZeppelinOS, EIP-1167 minimal) and return implementation, admin and beacon.
- Vextorium
Latest Transfer events of an ERC-20 token, optionally only those in or out of a wallet, over the last N blocks, with decimal-adjusted amounts. Works on Base, Et
- Vextorium
Network status: chainId, block height and age, gas price, base fee, suggested priority fee, node client version and sync status. Works on Base, Ethereum, Arbitr
- Vextorium
How many copies of an ERC-1155 token id a wallet holds (balanceOf), with the token URI. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanc
- Vextorium
Token ids of an ERC-721 collection held by a wallet (tokenOfOwnerByIndex on enumerable collections) and the total count. Works on Base, Ethereum, Arbitrum, Opti
- Vextorium
Current owner of an ERC-721 NFT by token_id (ownerOf), with collection name and tokenURI. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avala