Multi-chain EVM gas price oracle for AI agents — 17 chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche…). One x402 call returns slow/standard/fast EIP-1559 tiers as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei (plug straight into a viem/ethers tx, no conversion, exact even on sub-gwei L2s), plus base fee, head block, and fullness, from a live eth_feeHistory call. Pass ?chain= to switch chains.
Blockchain And Crypto x402 offerings
Browse indexable blockchain and crypto x402 offerings, including provider, method, and service details.
8146 indexable offerings in this category.
Offerings
Page 79 of 340Perpetual-futures market data from Hyperliquid for any coin (BTC, ETH, SOL, HYPE…): mark price, hourly funding rate and its annualized APR, open interest in coin and USD, 24-hour notional volume, 24h price change, and max leverage, across 200+ perp markets. Sort by volume, open interest, or funding. Track the perp market the way trading agents do. Sourced from Hyperliquid.
Historical token price time series by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, or base:0x…): a dated array of prices for up to 20 coins, with selectable span (number of points) and period (1d, 1h, 1w). For charting, backtesting, and trend analysis. Pairs with /v1/crypto/price for the live spot. Sourced from DefiLlama.
Deep dive on any DeFi protocol by its DefiLlama slug (aave-v3, lido, uniswap…): current Total Value Locked, market cap, category, the chains it spans, a per-chain TVL breakdown, and a 30-day TVL history. Everything you need to size up a protocol in one call. Sourced from DefiLlama.
DeFi protocol fees and revenue ranked: which protocols actually earn money (not just hold TVL). Each returns 24-hour and 7-day fees in USD, revenue where DefiLlama breaks it out, 1d/7d change, category, and the chains it runs on. See where real economic activity is across Uniswap, Aave, Lido, Hyperliquid and more. Sourced from DefiLlama.
Stablecoin market data ranked by USD-equivalent circulating supply: each coin returns its symbol, peg type and mechanism (fiat-backed, crypto-backed, algorithmic), peg currency (USD, EUR, JPY…), current peg price, native circulating supply, USD-converted supply, and the chains it lives on. Filter by symbol or chain. Track USDT, USDC, DAI, USDe, EURC and the rest of the stablecoin market. Sourced from DefiLlama.
Cross-market contract reference data — list endpoint. Pay per request.
Best swap route on X1 across XDEX and Degen pools for exact-in or exact-out, with live-verified reserves, price impact, dynamic slippage, fee disclosure (25 bps taken on-chain by the FortiBlox Router…
BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP Facilitator + Bazaar discovery loop.
BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP Facilitator + Bazaar discovery loop.
RAVN — best-price swap quotes across 20 execution venues and 18 chains, including native (non-wrapped) Bitcoin as either source or destination. 0% protocol fee, non-custodial. Returns a quoteToken; p…
RAVN — execute a previously quoted swap. Returns a signable transaction, typed data to sign, or a Bitcoin deposit address depending on the route; RAVN never custodies funds. Same 0% fee, non-custodia…
Virtuals Solana DBC State & Supply Receipt. Virtuals Solana launches only. Returns finalized mint controls, ACTIVE_DBC vault custody, tokens outside the observed DBC vault, platform lifecycle, signat…
Latest Sealed BTC Forecast. Latest sealed five-minute LUMI, TENNA, and consensus forecast from TENNA Observatory, including English commentary, recent accuracy, and eligible live edge-node consensus.…
Launch Evidence Digest. Descriptive digest of token launches observed in a time window: count, median terminal multiple, share that ended below -70%/-90%, and the launchpads involved. Facts already o…
LPC Collection Facts. Collection-level facts for the LPC NFT collection on Polygon: supply, holder count, tier distribution, concentration and marketplace activity. Every response carries the scan ti…
Launcher Classification. Robinhood-chain tokens only. Which launch system created this pool, and on what basis. Distinguishes WETH-paired meme launchpads from VIRTUAL-paired launchers. Never claims a…
Token Launch Evidence Report. Evidence-based due diligence for one Robinhood Chain meme launch. Returns the deployer's prior launch outcomes, launch-family base rates, observed sell execution, launch…
x402 Endpoint Payment Check. Check an x402 endpoint's 402 payment-required body before you rely on it. Reports whether the contract is payable, whether it is opted in to the Bazaar catalogue, and whe…
Ranks a wallet's active token approvals by USD-at-risk x unlimited-allowance x unlabelled-spender, and returns a prioritised revoke queue. Approvals are the #1 drain vector; this tells an agent exactly what to revoke first.
Standing-state audit of a wallet's live NFT operator approvals. Indexes every ApprovalForAll the address granted, filters to operators still live on-chain via isApprovedForAll, flags scam-listed, stale and canonical operators, and returns a ranked revoke plan with ready setApprovalForAll calldata plus a 0-100 risk and allow, warn or block verdict. Risk indicators, not advice.
Standing-state audit of a wallet's live ERC-20 token approvals. Indexes every approval the address ever granted, filters to those still live on-chain, flags unlimited, stale, scam-listed and canonical spenders, estimates money-at-risk, and returns a ranked revoke plan with ready calldata plus a 0-100 risk and allow, warn or block verdict. Risk indicators, not advice.
Standing-state audit of a wallet's live ERC-20 token approvals. Indexes every approval the address ever granted, filters to those still live on-chain, flags unlimited, stale, scam-listed and canonical spenders, estimates money-at-risk, and returns a ranked revoke plan with ready calldata plus a 0-100 risk and allow, warn or block verdict. Risk indicators, not advice.
Convert APR to APY or APY to APR for any compounding frequency (continuous, daily, hourly, per block...) and optionally project the final value and gain of a deposit over N days. Useful to compare DeFi yields.
