#erc20

Live ERC-20-Token-Metadaten, direkt von der Blockchain gelesen. Gib eine beliebige Token-Vertragsadresse ein und es gibt den Namen, das Symbol, die Dezimalstellen und den Gesamtvorrat des Tokens zurück – sowohl als rohe On-Chain-Ganzzahl als auch als menschenlesbare Zahl – durch Aufruf des ERC-20-Vertrags direkt über den öffentlichen JSON-RPC-Knoten der Chain (eth_call), nachdem bestätigt wurde, dass die Adresse tatsächlich ein Vertrag ist. Der USD Coin-Vertrag löst sich zu "USD Coin", Symbol USDC, 6 Dezimalstellen auf; Wrapped BTC auf Polygon zu "(PoS) Wrapped BTC", Symbol WBTC, 8 Dezimalstellen. Der Balance-Endpunkt liest den Bestand einer beliebigen Wallet an einem beliebigen Token – übergib den Token-Vertrag und eine Besitzeradresse und es gibt den Bestand roh und formatiert mit den eigenen Dezimalstellen und dem Symbol des Tokens zurück. Es funktioniert über sieben EVM-Chains – Ethereum, Polygon, BNB Smart Chain, Arbitrum, Optimism, Base und Avalanche – mit freundlichen Aliasen (eth, matic, bnb, arb, op, avax). Dies ist die Token-Metadaten- und Token-Balance-Schicht, die jede Wallet, DEX, Portfolio-Tracker, Block-Explorer und DeFi-Dashboard benötigt: Verwandle einen nackten 0x…-Vertrag in einen benannten, dezimalisierten Token und löse den Bestand eines beliebigen Inhabers in einem Aufruf auf. Lese live von der Chain, kein Key auf der Datenquelle, nichts gecached. Unterscheidet sich von Native-Coin-Balance- und Marktpreis-APIs – dies sind On-Chain-ERC-20-Vertragsdaten, die direkt von der Blockchain gelesen werden. 4 Endpunkte über 7 Chains.

api.oanor.com/tokeninfo-api

Live zkSync Era On-Chain-Daten als API, basierend auf dem offenen Blockscout-Explorer. zkSync Era (Chain-ID 324) ist ein führendes Ethereum zk-Rollup Layer-2 von Matter Labs; seine native Währung ist ETH und die Gebühren betragen nur einen Bruchteil des Mainnets. Rufen Sie Netzwerkstatistiken ab (Gesamtanzahl Blöcke und Transaktionen, ETH-Preis, Live-Gas), ein Gas-Orakel mit langsamen, durchschnittlichen und schnellen Preisen in Gwei, die aktuellsten Blöcke und vollständige Blockdetails nach Höhe oder Hash. Suchen Sie jede Adresse nach ihrem Guthaben und Vertragsstatus, jede Transaktion nach Hash nach ihrem Wert, Gebühr, Status, Sender und Empfänger, und jeden ERC-20-Token nach Vertrag nach seinem Namen, Symbol, Dezimalstellen, Inhabern und USD-Kurs. Eine universelle Suche löst Adressen, Token, Blöcke und Transaktionen in einem Aufruf auf. Echte On-Chain-Daten, kein API-Key upstream erforderlich. Ideal für zkSync-Wallets, Block-Explorer, Gas-Tracker, DeFi-Dashboards und On-Chain-Analysen.

api.oanor.com/zksync-api

Live Celo on-chain data as an API, built on the open Blockscout explorer. Celo (chain id 42220) is a mobile-first, carbon-negative Ethereum-compatible network; its native currency is CELO and it hosts native stablecoins such as cUSD and cEUR. Pull network stats (total blocks and transactions, CELO price, live gas), a gas oracle with slow, average and fast prices in gwei, the most recent blocks and full block detail by height or hash. Look up any address for its balance and contract status, any transaction by hash for its value, fee, status, sender and receiver, and any ERC-20 token by contract for its name, symbol, decimals, holders and USD rate. A universal search resolves addresses, tokens, blocks and transactions in one call. Real on-chain data, no key needed upstream. Ideal for Celo wallets, block explorers, gas trackers, DeFi and stablecoin dashboards and on-chain analytics.

api.oanor.com/celo-api

Live Polygon PoS on-chain data as an API, built on the open Blockscout explorer. Polygon (chain id 137) is one of the most-used Ethereum-compatible networks; its native currency is POL (formerly MATIC) and fees are tiny. Pull network stats (total blocks and transactions, POL price, live gas), a gas oracle with slow, average and fast prices in gwei, the most recent blocks and full block detail by height or hash. Look up any address for its POL balance and contract status, any transaction by hash for its value, fee, status, sender and receiver, and any ERC-20 token by contract for its name, symbol, decimals, holders and USD rate. A universal search resolves addresses, tokens, blocks and transactions in one call. Real on-chain data, no key needed upstream. Ideal for Polygon wallets, block explorers, gas trackers, DeFi and NFT dashboards and on-chain analytics.

api.oanor.com/matic-api

Live Gnosis Chain on-chain data as an API, built on the open Blockscout explorer. Gnosis Chain (chain id 100, formerly xDAI) is a long-running Ethereum-compatible network whose native currency is the xDAI stable token, so gas and balances are denominated in a dollar-pegged coin. Pull network stats (total blocks and transactions, native price, live gas), a gas oracle with slow, average and fast prices in gwei, the most recent blocks and full block detail by height or hash. Look up any address for its balance and contract status, any transaction by hash for its value, fee, status, sender and receiver, and any ERC-20 token by contract for its name, symbol, decimals, holders and USD rate. A universal search resolves addresses, tokens, blocks and transactions in one call. Real on-chain data, no key needed upstream. Ideal for Gnosis wallets, block explorers, gas trackers, DeFi dashboards and on-chain analytics.

api.oanor.com/gnosis-api

Live Arbitrum One on-chain data as an API, built on the open Blockscout explorer. Arbitrum is the largest Ethereum Layer-2 by total value locked (chain id 42161); gas and balances are denominated in ETH and fees are a fraction of mainnet. Pull network stats (total blocks and transactions, ETH price, live gas), a gas oracle with slow, average and fast prices in gwei, the most recent blocks and full block detail by height or hash. Look up any address for its ETH balance and contract status, any transaction by hash for its value, fee, status, sender and receiver, and any ERC-20 token by contract for its name, symbol, decimals, holders and USD rate. A universal search resolves addresses, tokens, blocks and transactions in one call. Real on-chain data, no key needed upstream. Ideal for Arbitrum wallets, block explorers, gas trackers, DeFi dashboards and on-chain analytics.

api.oanor.com/arbitrum-api

Live Base mainnet on-chain data as an API, built on the open Blockscout explorer. Base is Coinbase's Ethereum Layer-2 (chain id 8453), where gas and balances are denominated in ETH and fees are a fraction of mainnet. Pull network stats (total blocks and transactions, ETH price, live gas), a gas oracle with slow, average and fast prices in gwei, the most recent blocks and full block detail by height or hash. Look up any address for its ETH balance and contract status, any transaction by hash for its value, fee, status, sender and receiver, and any ERC-20 token by contract for its name, symbol, decimals, holders and USD rate. Real on-chain data, no key needed upstream. Ideal for Base wallets, block explorers, gas trackers, DeFi and on-chain analytics.

api.oanor.com/base-api

Live Ethereum mainnet on-chain data as an API, built on the open Blockscout explorer — a different layer from market-price feeds. Pull network stats (total blocks and transactions, ETH price, market cap and live gas usage), a gas oracle with slow, average and fast prices in gwei, the most recent blocks and full block detail by height or hash. Look up any address for its ETH balance, ENS name and contract status, any transaction by hash for its value, fee, status, sender and receiver, and any ERC-20 token by contract for its name, symbol, decimals, holders and USD exchange rate. A universal search resolves addresses, tokens, blocks and transactions in one call. Real on-chain data, no key needed upstream. Ideal for wallets, block explorers, gas trackers, DeFi dashboards and crypto analytics.

api.oanor.com/ethereum-api