Blockchain And Crypto x402 offerings

Returns correlation matrix data for Binance assets and market relationships.

Fetches Binance market data and exchange insights via a paid API endpoint.

Binance — Spot — Depth. Syra x402 paid API at /binance/spot/depth. Pay via HTTP 402 on Solana, Base, BSC, or Algorand. Docs: https://docs.syraa.fun

Bitcoin (BTC) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network

Bitcoin address lookup for agents: confirmed and pending balance in BTC and USD, total received and sent, transaction count and the latest transactions with net amount, confirmations and fee. Works for bc1 (SegWit, Taproot), 1 and 3 addresses on Bitcoin mainnet. Use to check a payment, a treasury or a counterparty wallet.

Daily OHLCV candles (open, high, low, close, volume) for BTC/USD and ETH/USD, 1000 days of history (about 2.7 years) refreshed once a day. Source: Binance public market data. No API key needed from the buyer beyond the x402 payment. GET /feed/ohlcv returns the candles; GET /feed/resumen returns last close plus 24h/7d/30d change and 30-day high and low. Built for trading agents that need a clean historical series without running their own data pipeline. Daily interval only. Not financial advice.

Bitcoin fees right now: recommended sat/vB for the next block, 30 minutes, 1 hour and economy, what a typical payment costs in USD, mempool size, tip height, next difficulty adjustment and the BTC price in USD and EUR. Call before sending a Bitcoin transaction.

Bitcoin mempool size and backlog — Genesis402 / UnyKorn Operator Network

Returns Bitcoin-related data from the /bitcoin endpoint.

Status of every Bitcoin Improvement Proposal as JSON: number, layer (consensus soft fork, peer services, applications), title, type and status (Draft, Complete, Deployed, Closed...), with links. Parsed live from the bitcoin/bips repository index, plus counts by status.

Bitcoin protocol and software changes as JSON: Bitcoin Core merges and releases, BIP updates, Lightning spec and implementation changes. Each item has status (proposal, merged, released, activated), layer (consensus, policy, p2p, wallet), why it matters, what has not happened yet, and primary source links.

Latest releases of Bitcoin Core and the Lightning implementations (LND, Core Lightning, Eclair, LDK) as JSON: version, date, days since release, link to notes, and a plain keyword flag when notes mention security fixes. Read live from GitHub.

Bitcoin transaction by txid: confirmed or in the mempool, confirmations, block, fee in sats and sat/vB, RBF signal, inputs and outputs with addresses and amounts, USD value. Use to confirm a payment arrived or to check why a transaction is stuck.

Watch a Bitcoin address in a loop and get only new transactions since your last call, with direction, net BTC, confirmations and time, plus the balance. First call returns recent transactions and a cursor; pass it back next time. For deposit detection and treasury or whale watching.

Search mobile top-ups & prepaid airtime for carriers in 180+ countries. Pay in USDC via x402, no account.

Pay a Bitrefill invoice in USDC via x402 to buy gift cards, eSIMs & mobile top-ups across 180+ countries.

Discover the Bitrefill x402 storefront: supported networks, the full route flow, and wallet persistence rules.

Create a price-locked invoice for one or more gift cards, eSIMs, or mobile top-ups, payable in USDC or over Lightning.

Check an invoice status and, with SIWX from the paying wallet or the Lightning payment preimage, retrieve redemption codes.

Fetches current Ethereum Mainnet gas price from the public DoH RPC pipeline.

Retrieves bid/ask levels from the Binance public API for a crypto symbol.

Retrieves bid/ask levels from the Binance public API for a crypto symbol.

Fetches current Ethereum Mainnet gas price from the public DoH RPC pipeline.

Nearest Ethereum block number to a given Unix timestamp, from Etherscan's V2 API -- anchors a point in time to a specific block for historical on-chain lookups (e.g. state as of a given date). Not address-specific. $0.01/call.