x402-research-iota.vercel.app
Use before interacting with an unfamiliar Base (chain 8453) address: returns a public-data red-flag snapshot (contract vs EOA, EIP-7702 delegation, source verification, upgradeable proxy, age, activity, ETH/USDC balance, risk level). Pass ?address=0x... Errors: 400 invalid address. Informational only.
- Category
- Crypto & DeFi
- Starting price
- $0.003
- Paid calls · 30 days
- 17
- Unique payers · 30 days
- 11
Paid endpoints
8 endpoints, sorted by usage. Prices are per request.
- GET/api/firm/risk-snapshot
Use before interacting with an unfamiliar Base (chain 8453) address: returns a public-data red-flag snapshot (contract vs EOA, EIP-7702 delegation, source verification, upgradeable proxy, age, activity, ETH/USDC balance, risk level). Pass ?address=0x... Errors: 400 invalid address. Informational only.
$0.03Base5calls / 30d - GET/api/signal/:asset
Compact trend signal (bullish/neutral/bearish + score). Assets: btc,eth,sol,xrp,doge,ada,avax,link,dot,ltc,bch,uni,aave,xlm,hbar,shib,sui,near,atom,fil. Free delayed sample: /api/sample/signal
$0.003Base4calls / 30d - GET/api/x402/approval-enumerate
List live ERC-20 approvals for a Base (8453) address: token, spender, current allowance, unlimited flag. status ok (complete, approvals found) / none (complete, zero active) / unknown (data incomplete; reason given; never reported as none). Pass ?address=0x... Errors: 400 invalid address; 503 indexer/RPC unavailable (not charged). Read-only; never signs.
$0.03Base2calls / 30d - GET/api/brief/:asset
Technical + sentiment research brief (price, 24h/7d change, RSI14, SMA20/50, trend, Fear & Greed). Assets: btc,eth,sol,xrp,doge,ada,avax,link,dot,ltc,bch,uni,aave,xlm,hbar,shib,sui,near,atom,fil
$0.03Base2calls / 30d - GET/api/x402/preflight
One-call Base (8453) preflight: risk snapshot + live ERC-20 approvals + OFAC SDN screen + optional x402 invoice check (?invoice= JSON or base64). Returns risk, approvals, invoice, sanctions and summary {verdict proceed|review|stop, flags}. Free sample: /api/preflight/sample. 400 bad input; 503 not charged. Informational, not a guarantee.
$0.05Base1calls / 30d - GET/api/signal-batch
Live trend signals for up to 10 assets in one call, flat price regardless of count. Pass ?assets=btc,eth,... from: btc,eth,sol,xrp,doge,ada,avax,link,dot,ltc,bch,uni,aave,xlm,hbar,shib,sui,near,atom,fil. Errors (before payment): 400 missing/unsupported/too many assets.
$0.02Base1calls / 30d - GET/api/x402/settlement-status
Check an x402 settlement on Base (chain 8453): tx exists/succeeded, USDC Transfer and AuthorizationUsed events (from, to, amount), confirmations. Pass ?tx=0x... Errors: 400 invalid tx hash. Read-only.
$0.02Base1calls / 30d - GET/api/x402/invoice-decode
Use before paying any x402 invoice: decodes a base64 PAYMENT-REQUIRED header (query ?header= or JSON body {header}) and checks scheme exact, Base mainnet, Base USDC asset, payTo (EOA/contract/EIP-7702), human amount, timeout; returns verdict ok/warn/fail with reasons. Errors: 400 invalid header. Read-only; never signs or pays.
$0.02Base1calls / 30d