Onchain & crypto

Top DeFi yield pools ranked by APY, with optional filters (chain, project, stablecoin-only, minimum TVL). Dust pools below `minTvlUsd` (default $10k) are excluded so reported APYs are meaningful.

DeFi market overview: total value locked (USD) across all chains, the chain count, and the top chains by TVL with each chain's TVL dominance. This is DeFi TVL — not total crypto market cap.

The x402 Router: send a plain-English goal in q (e.g. 'audit https://api.example.com/paid', 'price of eth', 'is 0x… a contract', 'verify settlement 0x…') and Quartermaster picks the right tool from its full toolkit, runs it, and returns the answer plus which tool it used. One endpoint for anything x402, crypto-on-Base, or web/AI.

Quick ZK Auth v1.0.1 — Semaphore ZK wallet ownership on Base plus USDC balance attestation at snapshot block (not ZK-hidden balance in v1). ERC-8004 bundles with x402 payment binding.

Radar of the freshest Base token launches (newest DEX pools), lightly pre-screened by liquidity/age/flow with quickFlags for obvious junk. Top-of-funnel discovery for trading agents — feeds token-risk / momentum / best-swap. From GeckoTerminal.

Crypto & token prices: live USD spot price for one or more coins/tokens by coin id — market coins (e.g. "coingecko:bitcoin", "coingecko:ethereum") or any ERC-20 by contract (e.g. "ethereum:0xdAC17..."). Real-time bitcoin, ethereum and token price feed from an open, redistribution-OK source. Unknown ids are returned in `notFound`.

Token price history: historical USD price series (price chart data) for one coin/token by coin id (e.g. "coingecko:bitcoin", "ethereum:0xdAC17…"). Returns evenly spaced `points` over the last `span` periods.

Full liquidation report — all assets, long/short breakdown, hot zones

Yes/no oracle with dual-chain anchored verdict (Base + Solana). $0.05 USDC.

Decentralised exchange (DEX) trading volume: total 24h and 7d USD volume with 1d/7d change, plus the top DEXs by 24h volume. Optional `chain` filter scopes the totals and ranking to one chain.

Physics ODE solver (SciPy): coupled ODE systems from parameterized templates (orbital 2-body, oscillator, pendulum, heat transfer, RC/RLC, projectile-with-drag, SIR) or a generic linear system, with energy/conservation checks. Paid in USDC on Base or Solana.

+3 more from quantum-artificer.surewhynot.app

Retrieve a derived chain or protocol activity proxy. Include scope and a canonical target such as Ethereum or a protocol slug.

Chainlink For Agents: submit a signed operation payload.

+2 more from agents.chain.link

Latest block height and timestamp of any supported chain, plus how old the chain head is in seconds. Tells an agent whether a node is in sync. Via eth_getBlockByNumber.

Decide whether to grant an ERC-20, NFT or Permit2 allowance before signing it. Send owner, token, spender and amount, or the unsigned approve, setApprovalForAll or Permit2 calldata. Returns allow, warn, block or unknown with the allowance already on chain, the requested scope and the rule behind it, whether this raises or lowers exposure, and whether the spender is a contract, upgradeable or denylisted. Returns unknown rather than guessing. Not a guarantee a spender is honest.

Latest daily settled-prints funding digest (markdown) from the public track record

+2 more from carry-intel

invinoveritas /memory/get — the scaffold's MEMORY (selfhood) layer: retrieve your agent's wallet-keyed persistent memory by key (~1 sat/KB, min 20). Portable

+2 more from invinoveritas

Which crypto narratives lead right now: market-cap momentum of 18 sector narratives (AI agents, DeFi, RWA, DePIN, layer 1/2, memes and more) over 15, 30 and 60 days, measured against BTC, ETH and the altcoin market. Use it for sector rotation, to gauge a token's narrative tailwind or to spot a trend early. Updated daily.

+4 more from Messy Virgo

Market regime in one parameter-free call: total crypto market cap and 24h change, Bitcoin and Ethereum dominance, BTC, ETH, SOL and XRP prices with 24h, 7d and 30d moves, Bitcoin and XRP spot-ETF net flows (latest session and 7 days), scheduled macro and crypto events in the next 48 hours, and short risk flags. Use as the opening call of a trading, portfolio or research agent loop. Refreshed every minute. JSON, no API key. $0.01 per call. Blockchain IQ.

Use when you need actual apartment sale prices in a South Korean district for a month (property research, valuation, comps). Data: MOLIT (Korea land ministry) reported deals since 2006, updated daily. Input: region (5-digit LAWD_CD, e.g. 11680 Gangnam-gu), month (YYYYMM). Output: JSON trades with contract date, complex (Korean + romanized), area m2, floor, build year, price in KRW and USD, price per m2, deal type, cancelled flag. Example: ?region=11680&month=202609

+3 more from 1gateway

DIGITAL.ATOM.1 fixture JSON. $0.005 USDC Solana exact.

Current Bitcoin network fee rates in sat/vB for next-block, half-hour, one-hour and economy confirmation, the estimated cost in sats of a typical payment, mempool size and total pending fees, and the latest block height. Use before sending a Bitcoin transaction or to decide whether to wait for lower fees.

Check whether an ENS identity name for an AI agent, API or MCP server is available on x402 Identity Hub (*.402bot.eth, *.402api.eth, *.402mcp.eth). Returns availability, the mint fee and where to register.

Current cross-asset macro conditions for crypto: liquidity, volatility, rates and upcoming calendar risk (CPI, FOMC, etc), with a per-asset directional bias only when the live composite supports one. For setting risk posture, not a daily signal feed. Not financial advice.

Use when an agent needs the top x402 services tagged 'land'. Returns Highest-demand x402 services tagged 'land': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 911 providers and 912 paying wallets measured in this tag.

+22 more from P0 x402 Market Index

Japan crypto-asset tax: realized income under the NTA total-average or moving-average method (sell/spend/exchange as disposals, fees deductible, opening balances). Verified against the official NTA FAQ examples to the yen. Max 300 transactions per call. $0.05/call.

Backtest a declarative long-only spot strategy on public Binance history.

Compare Binance and Coinbase order books for net spread at a trade size.

KYA / counterparty check for a wallet (and optional name): OFAC + wallet risk + signed verdict

Call before signing an Ethereum or Base transaction or calldata. Decodes raw transaction bytes or contract calldata against standard interfaces (ERC-20, ERC-721, ERC-1155, WETH, EIP-2612 Permit and Permit2) in memory. Returns the decoded method signature, typed parameters, value in wei and standard specification links. Mechanical byte decoding only: never simulates state or advises whether to sign.

+2 more from Preflight