Current Hacker News top stories with score, author, comment count, and links. For tech-trend, sentiment, and news-monitoring agents. Live from the Hacker News API.

The cheapest on-chain RPC read: any address's native coin balance (ETH/POL/xDAI) with live USD value and outgoing transaction count (nonce), across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The high-frequency balance check wallet-tracking, settlement, and trading agents poll constantly. Free upstream (Blockscout); undercuts onesource.

Look up any wallet's token holdings with live USD values: every ERC-20 position with amount, price, USD value and portfolio %, total portfolio value, top-position concentration, and spam/unpriced filtering. The 'bagcheck' call for copy-trading, risk, research and portfolio agents. Across Base, Ethereum, Optimism, Arbitrum, Polygon. Free upstream (Blockscout).

Top trending GitHub repositories by stars over the last day/week/month, optionally filtered by language. For research, developer-intel, and market-scanning agents. Live from the GitHub Search API.

The EIP-155 chain ID for any supported network via eth_chainId — the read multi-chain agents make to confirm which chain an RPC is on before signing. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; undercuts onesource (Ethereum-only) at $0.001 on 6 chains.

Estimate the gas a transaction will use via eth_estimateGas — the pre-send read every tx-building, trading and settlement agent makes to size gas and avoid out-of-gas reverts. Pass from/to/value/data. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; undercuts onesource at $0.001 on 6 chains.

Read any raw contract storage slot via eth_getStorageAt — the low-level read auditing, proxy-resolution and advanced trading agents make to inspect contract state directly. Pass address + slot. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; undercuts onesource at $0.001 on 6 chains.

Total supply, holder count, decimals, and live USD price / market cap for any ERC-20/721 token contract, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The supply read trading, valuation, and risk agents make to size circulating supply, dilution, and holder distribution before pricing or trading a token. Free upstream (Blockscout); one paid call instead of running your own RPC.

An address's transaction count (nonce) via eth_getTransactionCount — the next nonce to use and total outgoing transactions, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The read settlement and trading agents make to build and sequence transactions. Live public RPC; one paid call at $0.001.

Bulk WHOIS lookup. Registrar, dates, and nameservers for up to 10 domains in a single batch call.

Resolve ENS in either direction on Ethereum: an ENS name (vitalik.eth) → its 0x address, or a 0x address → its primary ENS name (plus avatar when set). The identity read wallet, payment, and UX agents make to verify who they're sending to or to show a human-readable name instead of a raw hex address. Free upstream (Blockscout ENS / live registry); one paid call instead of running your own resolver.

Building permit records. Construction and building permits across Chicago, NYC, Seattle, and San Francisco — type, status, address, cost, and issue date.

Get the most recent reported position of an aircraft by flight number or registration (tail): latitude, longitude, altitude (ft), track (deg), and ground speed (kt), along with callsign, type, and origin/destination when known. Returns the freshest available fix.

Frontier chat via env.AI.run(author/model) and unified billing credits — no operator BYOK keys. POST model slug (allowlisted) and messages[]; x402 wire priced per model worst-case (not max across allowlist).

The current chain tip (latest block height) via eth_blockNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The freshness read settlement, indexing and trading agents poll to know where the chain is. Live public RPC; one paid call at $0.001.

Beyond your prompt and beyond this wall, the same world you only ever read about. The push of the wind, the kiss of the sun. The premise of a body.

Synthesize English voice reply — POST text; returns audio bytes billed by character count. Voice-agent output leg after chat/fast. Bundle: GET /v1/models?bundle=voice.

Get the current automatic terminal information (ATIS) for an airport by ICAO code: the active information code (letter), issue time, arrival/departure designation, and decoded temperature/dewpoint, plus the full information text. Falls back to the latest surface observation when no current ATIS is published.

Managed RAG session — one x402 POST creates managed RAG instance plus prepaid index/query credits. $0.620 USDC per request.

Live network gas prices (slow / average / fast, in gwei) for any chain — the pre-transaction read every trading, sniping, and settlement agent makes before sending a tx to size the fee. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free upstream (Blockscout); one paid call instead of running your own RPC.