Onchain & crypto

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

Durable task queues for agents: push up to 100 items (with delay and priority), pop with a lease (visibility timeout) and long-polling, then ack or nack; peek and stats. Private to the wallet, or shared across wallets with a secret key. $0.002 per call, items kept 14 days. Also callable as GET with the same fields as query parameters.

+34 more from AgentRXI

New token launches on Base with a real sell test: every new pool (Uniswap v2/v3/v4, Aerodrome) with a buy and full sell simulated in one block, graded BASED, MID, COOKED or RADIOACTIVE. Poll with since=<cursor>: you pay only for new rows. New token launches on Base with a real sell test: every new Base pool (Uniswap v2, v3 and v4, Aerodrome), found minutes after it opens, each token with a buy and a full sell simulated in one Base block through its deepest testable pool: BASED, MID, COOKED or…

New token launches on Robinhood Chain with a real sell test: every new Uniswap v4 pool, read from the chain, once it holds liquidity gets a buy and full sell simulated in one block, graded CAN_EXIT, EXPENSIVE, THIN_POOL, TRAP or CANNOT_SELL. Poll with since=<cursor> to pay only for new tokens; filter with grade=. New token launches on Robinhood Chain with a REAL sell test.

Crypto derivatives snapshot of one coin in one call: perp funding rates per exchange with predicted funding, open interest (OI) per venue, perp premium and the nearest futures basis, 24h liquidations and the long/short ratio. Venues: Bybit, Hyperliquid, dYdX, Gate, Kraken, Bitfinex, Deribit, OKX. The derivatives data bundle for trading agents on BTC, ETH, SOL and more. Data only. Bad input is free; under 3 venues not charged.

Crypto perp funding, spreads and listings, plus your own Arbitron cards, trades, PnL and docs.

BNB Chain: which AI agents answer, what a BSC trade costs, what your PancakeSwap V3 position earns

DMCA.com cases. Your own token via Authorization: Bearer. No function key, no shared token.

Moving estimates, box rentals, and delivery in BC. Requires Eco Van Move account (OAuth or token).

Kalshi macro: Fed rate odds, gold, silver, oil and bitcoin edges, 15-min markets, Kelly sizing.

+1 more from predictionmarketspicks.com

Certainty for AI Agents. Deterministic MCP tools for dates, crypto, finance. 84 tools.

Read contracts, track renewals, surface vendor leverage, and draft cancellation/renewal emails.

On-chain provenance lookup for AnchorRegistry. Resolve AR-IDs, hashes, and full trees. Authless.

Explains wallet approvals and signature requests in plain language: SAFE, CAUTION or RISK.

Read-only MCP server: verify credentials and browse escrows on the Stellar testnet contract.

Paid read-only reports for 1–5 EVM addresses across four networks; 0.02 supported stablecoin direct.

Base L2 token safety for AI agents: honeypot scans, swap simulation, approval and liquidity risk.

Open execution contract for agents doing business work. 6 operators, one MIT-licensed spec.

Free agent recovery and continuity. Public triage; register for a token to access private memory.

Send a reminder to anyone with a public UnRemind.me page. No account or token.

No-KYC offshore hosting an AI agent runs end-to-end: no-email signup, crypto, VPS, deploy, Tor.

Resolve any EVM contract ABI (even unverified, via decompilation), read, simulate, prepare txs.

Real-time and historical price feeds for 500+ crypto, equities, FX, and commodities assets.

Deterministic AI-liability attribution: signed, Bitcoin-anchored vendor/deployer/user fault split.