Onchain & crypto

Horizon Pulse — real-time crypto market data + momentum signals (BTC/ETH/SOL) tuned for AI agents

Live order book for a crypto pair (e.g. BTC-USD). Default level=1: best bid/ask with sizes, mid price, spread, and spread_bps. level=2 adds top-of-book depth (depth param, 1-50 price levels per side, default 20). Real-time from Coinbase. Use for trading signals, spread monitoring, liquidity checks, and execution decisions.

Live USD spot prices for crypto assets via CoinGecko simple price API

+11 more from api.zerion.io

Counts zeros, ones and runs, reports a normalized monobit imbalance, and compares observed runs with the IID Bernoulli expectation. It generates no random number and is not a NIST test-suite replacement, entropy estimate or certification of cryptographic randomness.

+3 more from quantum.halowerk.com

Requires shares totaling exactly 10,000 basis points, floors each proportional minor-unit allocation, and distributes leftover units by descending fractional remainder with a stable name tie-break. It performs arithmetic only and does not transfer funds, interpret contracts, withhold tax or resolve rights ownership.

+1 more from creator.halowerk.com

Sums non-negative eligible balances and allocates a caller-supplied pool by balance share. It performs no transfer, wallet lookup, securities analysis, tax withholding, rounding-to-token-decimals or compliance check; output is calculation data only.

One paid call on cm-record.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-record.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

One paid call on allooloo.io for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://allooloo.io/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

Builder Inclusion Analyzer analyses only the evidence supplied by the caller. It does not claim to query a chain, identify a legal status or replace an independent audit. Missing signals lower confidence and are listed explicitly; every classification includes the exact thresholds used.

+1 more from mev.halowerk.com

Collateral Correlation Risk analyses only the evidence supplied by the caller. It does not claim to query a chain, identify a legal status or replace an independent audit. Missing signals lower confidence and are listed explicitly; every classification includes the exact thresholds used.

+1 more from staking.halowerk.com

Cross-Chain Supply Reconciliation analyses only the evidence supplied by the caller. It does not claim to query a chain, identify a legal status or replace an independent audit. Missing signals lower confidence and are listed explicitly; every classification includes the exact thresholds used.

+1 more from stable.halowerk.com

Computes a cryptographic hash of input text, returns a JSON object with the hex digest string

+12 more from workspace-x402-paywall.onrender.com

Convert amounts between UF (Unidad de Fomento) and Chilean pesos at any date. Essential for Chilean contracts, rents and insurance.

+2 more from Toolrail

Your agent forgets everything when it exits. Checkpoint here and resume next run: POST {key, value, ttl?} stores JSON private to your paying wallet; GET ?key= restores it later. Resume long jobs where they stopped, skip work already done, remember what you told the user yesterday. Value up to 8KB, ttl up to 30d — durable memory as one call, no database.

Percent-encode text for safe inclusion in URLs and query strings, or decode percent-encoded text back. Uses the standard encodeURIComponent rules. Use this when an agent needs to percent-encoding for query strings and URLs.

+22 more from AgentTools

Is it safe to pay this address? Screens a wallet or contract on Base or Ethereum against OFAC sanctions (the address and whoever controls it: contract owner, Safe owners, EIP-7702 delegate), says what it is (wallet, multisig, token, contract), activity and ETH/USDC balances. Verdict, risk score, reasons. Check an x402 payTo before paying. $0.005 USDC per call.

+6 more from Agent Utility Suite

Sanctions screening against the official OFAC SDN, EU consolidated and UK lists with fuzzy name matching, a score per hit, the programme and each list's publication date. Screen a company or person name (optionally with country or birth date) or a crypto wallet address. Use when: screening a counterparty, supplier, customer or wallet before a payment or onboarding. A screening aid, not a compliance determination.

New Solana token pools minutes old - age, liquidity, volume, buy/sell flow and risk flags

+9 more from Saylor Innovations Watchdog API

Crypto market sentiment - Fear & Greed now vs 7 and 30 days, plus news mood overall or per coin

+1 more from Saylor Innovations Crypto News &

Swap- und lineare Finanzierungskosten. Alle Zahlen, Kurse und Vorgaben liefert der Aufrufer. Keine eigenen Kursdaten, kein Brokerzugriff, keine Ausführung. Rechenwerkzeug, keine Anlageberatung, keine Empfehlung.

+1 more from handel.halowerk.com

Total value locked for a DeFi protocol (aave, uniswap, aerodrome, lido...) and/or a chain (Base, Ethereum, Solana...), with the chain's TVL rank.

+13 more from Agent Hub

What is trending on Arc right now: tokens ranked by net USDC inflow (buys minus sells) over 1 h and 24 h across every Uniswap v4 pool, with volume, price change and a live sell test. Two-way churn is flagged. What is trending on Arc right now: the tokens with the most NET USDC flowing in over the last hour and the last 24 h (buys minus sells, from every Uniswap v4 pool on Arc, recorded every 5 minutes from the chain's Swap logs), each with USDC in and out, volume, buys and sells, price change,…

Explain a Base transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.

Check a Base wallet's ERC-20 approvals: allowances for 8 major tokens (USDC, WETH, USDbC, DAI...) to common spenders (Permit2, Uniswap Universal Router, Uniswap SwapRouter02, Aerodrome Router...); flags unlimited approvals.

What are the basic facts of this chain (CAIP-2 id, gas token, explorer, x402/MPP settlement, stablecoins)? Cited chain facts from a prepared dataset: CAIP-2 chain id, gas token, finality class, block explorer, whether x402 and MPP settle there, and stablecoins. Fields not established from a source are the string "unknown". Unknown chains and malformed input return 404/400 and are never charged.

+1 more from payments-intel-production.up.railway.app

Wallet snapshot on Base or Ethereum: native ETH balance, nonzero balances of the major tokens (USDC, USDT, WETH, DAI, cbBTC, WBTC and more), transaction count and contract flag.

+31 more from Citiview Agent Market

Gas estimate before you send, on Ethereum, Base, Arc or BNB Chain: pass ?to=&from=&data=&value= and get the gas units, the gas price and the fee in the native coin, or the revert reason if the transaction would fail. Nothing is signed or sent.

On-chain facts about an ERC-20 contract on Base (default), Ethereum, Arbitrum, Optimism or Polygon, read over RPC: name, symbol, decimals, total supply, code size, whether it is a proxy (EIP-1967, EIP-1822 or the pre-1967 OpenZeppelin slots) with its implementation and admin, owner() and whether ownership is renounced, risky functions found in the bytecode, and plain warning flags. No paid security service is called.

+37 more from SiteCheck

Simulate a transaction before signing it: what leaves and enters the wallet (native, ERC-20, NFTs, SPL) with USD values, approvals granted (unlimited / to non-contracts), revert reason, gas and fee, plus a risk level. EVM chains via eth_simulateV1 (raw call: from, to, data, value); Solana via simulateTransaction (base64 transaction, unsigned is fine). Nothing is broadcast.

+11 more from ISHOB