Blockchain And Crypto x402 offerings

Retrieve a private mock record by ID for $0.01 Base Sepolia test USDC.

Agent Transaction Guard: should an autonomous agent proceed, review or block this transaction? Five read-only on-chain core checks before gas is spent: native balance and gas price, transaction-specific gas estimate, full simulation with decoded revert reason, pending nonce gap and recipient bytecode/type. Supplying token, amount and an optional spender adds an ERC-20 balance and allowance check. Returns a stable machine-readable decision, evidence, unknowns, limitations and safe next actions. Missing evidence is REVIEW, never a false approval. Read-only; no transaction is broadcast and there are no follow-up charges. Wallet sanctions screening is outside this contract because official name lists cannot clear or identify a blockchain address.

Run a transaction simulation and EVM safety preflight with gas, destination proxy evidence, and optional token security and allowance checks in one decision-ready report.

On-chain trust/reputation score for a Base agent wallet

New token launches on Base with a risk verdict for each: pools created against WETH/ETH/USDC on Uniswap v2/v3/v4 and Aerodrome in the last minutes, grouped by token, newest first, each checked for owner powers (mint, blacklist, fees, pause), renounced ownership, upgradeability, liquidity in USD and OFAC. Poll with since_block. $0.01 USDC per call.

Crypto tax report for any wallet (Base, Ethereum): every transfer in a tax year labeled for a CPA (income, disposal, swap/trade, self-transfer, NFT), amounts, counterparties, stablecoin USD values, per-asset totals, CSV export. For tax prep, bookkeeping and accounting agents. $0.05 USDC per call.

Is this token safe? Honeypot + rug-pull check: send a Base or Ethereum token address, get a graded verdict (A-F), a one-liner and a plain-language take. Simulated buy and sell (can you sell it? buy/sell tax), owner powers (mint, blacklist, pause, fees), upgradeability, renounced ownership, DEX liquidity, OFAC. $0.009 USDC per call.

Preflight before paying any x402 endpoint: validates its 402 challenge (network, amount, asset, payTo, timeout, Bazaar declaration), prices it in USD, screens the payTo wallet (OFAC, wallet vs token contract) and shows real usage (Bazaar 30-day calls and unique payers). Budget check with max_price_usd. ok_to_pay / caution / do_not_pay. $0.003 USDC per call.

Is this token safe to buy or accept? For an ERC-20 on Base or Ethereum: owner powers from its code (mint, blacklist, fees, pause, trading switch, limits), upgradeable proxy, renounced ownership, DEX liquidity (Uniswap v2/v3, Aerodrome vs WETH/USDC with USD estimate) and OFAC screening of token and owner. Verdict, score, reasons. $0.01 USDC per call.

🆕 The complete fund-movement authority on a Base wallet in one call: ERC-20 approvals (a spender you approved can pull the token) PLUS Base Account spend permissions (the agent-era scoped recurring allowance) — one drain-surface verdict with the ERC-20 revoke queue to act on. Approval tools miss the spend permissions; spend-permission tools miss the approvals. The only combined check for agent wallets that must know their whole exposure before holding funds.

Pay Radar: pre-payment readings for an XRPL x402 endpoint (GET /v1/paycheck?url={endpoint}; alias /v1/payradar). Reads its 402 without paying and lists raw readings first: x402 shape, network, asset (RLUSD by issuer), the payTo account on the XRP Ledger (exists, activated, balance, trust line, age)…

Readings across one AI model category in the models.dev catalog (GET /v1/models/category/{name}; name one of reasoning, coding, vision-input, image-output, audio, retiring-soon, price-moved, free-tier): counts, 24h price changes, new and removed models, deprecated listings, vendor status-page distu…

x402 merchant readings by XRPL address (GET /v1/merchant/{r-address}): payments and unique payers in the last 24h from our own XRP Ledger scan, payer mix, account age, first funder and Domain field, endpoint liveness and 402 status, plus a modeled 0-100 summary score (a measurement, not advice). Ea…

x402 payment readings on the XRP Ledger from our own scan of validated ledgers: payments and volume per asset for 1h/24h/7d, hourly and daily series, unique payers and merchants, top and new merchants, sample transactions with explorer links, and caveats. Each reading lists its source and time. JSO…

Pay per call, solves one question: Is the XRPL x402 facilitator reachable and are known endpoints answering 402? Raw reachability, on-ledger success samples, and valid-402 probe rates with sources. Example: GET /v1/pulse/facilitator → {ok:true, level:"ok", success_rate_15m, asOf:"2026-11-01T18:50:0…

Prices of live x402 resources payable on the XRP Ledger: lowest-priced live provider per category, USD price distribution, every live endpoint with its rails, and price changes since the previous check, each with source and time. Non-USD prices are converted to USD as an estimate. JSON. Use when yo…

Use when you need pre-flight readings of liveness, valid-402 status and price/payTo drift for known XRPL x402 endpoints. Health of known x402 endpoints on XRPL and of the t54 facilitator: per-endpoint liveness and valid-402 check from one unpaid GET every 20 min (merchants' own /.well-known/x402 catalogs plus endpoints we discovered), price, asset, network and payTo drift versus the previous check, catalog reachability, and facilitator health from /supported reachability and our own ledger scan (success rate, fee spikes, tagged volume). JSON with sources and data gaps. Example (illustrative): GET /v1/health/report → {endpoints:[{url, status, valid_402, ms}], drift[], facilitator}. Price: 0.01 RLUSD on XRPL mainnet (xrpl:0; RLUSD issuer rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De) or 0.01 USDC on Base. Terms: https://api.agentweather.io/v1/terms

Can I pay this address? ok · new · warn · sink. Buy looks_20 pack ($0.20) or look $0.10. Stamp ticket $0.05. Packs: 20/$0.20 · 100-addr $0.15. Agents pay themselves. No inbox. Base + Solana USDC.

Bitcoin fee rates. 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.

Send one SMS to a mobile number, paid per message in USDC with x402. Use it when an agent must notify a person by text. The 402 quotes the exact price for the destination and message length. No accou…

Deep risk scoring for a wallet before your agent pays it. Base: contract vs EOA, tx count, ETH balance, USDC balance, vanity patterns, zero/low activity. Solana: recent signatures, SOL balance, USDC …

Regex-only structural check: confirms 0x + 40 hex characters for EVM, or 32-44 char base58 for Solana. No checksum computed, no RPC call made. Use as a cheap pre-filter before the full checksum check at /v1/address/validate.

EIP-55 mixed-case checksum validation for 0x-prefixed 40-hex-character EVM addresses, or base58 charset/length validation for Solana addresses. Returns valid (boolean), chain (evm|solana), and checksumOk fields.

Agent Margin Router – Gas Fees: Live EIP-1559 gas fees (slow/standard/fast tiers) plus USD cost per transaction type (transfer, ERC-20 transfer, swap, NFT mint) for Base, Ethereum, Arbitrum, Optimism and Polygon. Aggregated from public RPC nodes – no API key. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.