3 APIs · 3 endpoints · Base network · x402 protocol
Quick API health check for agents: POST one public API endpoint URL, get a verdict, latency/reliability over 3 samples, key checks (TLS, headers, CORS, JSON) and the top 3 issues with fixes. $0.09 USDC per call on Base; x402 v1 (X-PAYMENT) and v2 (PAYMENT-SIGNATURE). Unreachable targets are not charged. Full 10-sample audit at /v1/audit. Free sample at /v1/demo.
1 endpoints · $0.09–$0.09Token safety verdict before an agent buys or accepts a token: honeypot / sell simulation, owner privileges, mint/blacklist/pause functions, liquidity and holder concentration on Base, Ethereum, Arbitrum, Optimism, Polygon and Solana. Verdict + reasons. Accepts x402 v1 and v2 clients.
1 endpoints · $0.01–$0.01Pre-send address-poisoning check for agents and wallets: pass from (sending wallet) and to (recipient). Scans the sender's real on-chain history (Ethereum, Base, optional Avalanche) and flags lookalike recipients (same first/last hex chars as a real counterparty), zero-value / dust / fake-token poisoning transfers with tx hashes, and bad EIP-55 checksums. Verdict ok|caution|danger plus the address you probably meant. Free offline lookalike check at /api/basic. Accepts x402 v1 and v2 clients.
1 endpoints · $0.005–$0.005address-poisoning-check.nextill-pos.workers.dev, apiaudit.madebydevx.com, tokencheck.madebydevx.comMade by DevX has 3 live APIs on PayAPI Market with 3 endpoints in total, in Verification, Tools: DevX API Health Audit - Quick, DevX Token Check, DevX Address Poisoning Check.
3 of 3 have at least one settlement-verified route: PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC payment on-chain. Each listing page shows which routes were paid and links the receipt.
Per request, in USDC, over the x402 protocol. An agent calls the endpoint, receives HTTP 402 with the price and wallet, pays and retries. There is no API key, account or subscription, and Made by DevX keeps 100% of each payment.