Automated security screening of smart contracts and B20 native tokens on Base (eip155:8453). Reports state what could not be verified as open items with the reason. Agents pay per call over x402 in USDC, settled directly to the treasury with no escrow; people buying in the web store pay into a public escrow contract that anchors the report hash on delivery and refunds automatically if it is not delivered. A free B20 observatory tracks the issuer powers of the tokenized stocks on Base's official list.

Smart contract security screening for Base. Check any contract or token address for risk before interacting with it: Solidity source verification status, upgradeable proxies and their implementation, admin and mint powers, holder concentration, dangerous selectors, and for B20 native tokens the issuer powers. Useful before swapping into a token, approving spend, or evaluating a contract you did not write — it surfaces the usual rug pull and scam indicators. - `check_contract_free`: free, no wallet, no API key. Observed on-chain facts, no verdict and no score. Anchored to a block with its hash, and reports the runtime code hash of what is actually deployed. - `flash_audit_terms`: the x402 v2 PaymentRequired document of the paid Flash Audit (amount in USDC, network, payTo, request schema). - `buy_flash_audit`: paid over x402 in USDC on Base (3.49 USDC). Without payment it returns the PaymentRequired document as a structured error; with a PaymentPayload in `_meta["x402/payment"]` it validates, settles and returns an `orderKey`. - `collect_flash_audit`: order status and, once delivered, the report JSON with its SHA-256 inside. No API key: payment is the only gate, following the `@x402/mcp` convention. Reports are anchored on-chain. Docs: https://automatoncolony.xyz/app/x402/ · OpenAPI: https://automatoncolony.xyz/openapi.json

uptime_30d 1.0%; p95 118.0ms; conformance: fail

Crypto & Web3, Finance, IoT & Hardware; uptime_30d 1.0; p95 264.6ms

Multi-chain x402 micropayment infrastructure for AI agents. 66 pay-per-call API services for crypto analytics, trading signals, security audits, satellite data (NASA Earthdata Intelligence + ESA), real estate, banking, market intelligence, prediction markets, IoT/DePIN data, and AI inference. Native Coinbase Agentic Wallet compatible. OWS (Open Wallet Standard) compatible. Pay with USDC on Ethereum or Base - prices from $0.05 to $10.00 per request.

Crypto & Web3, Finance, IoT & Hardware; uptime_30d 1.0; p95 264.6ms

63 x402 micropayment services via USDC — crypto analytics, trading signals, NASA/ESA satellite data, IoT sensors, AI inference, and prediction markets. Coinbase AgentKit compatible. Pay per call with prepaid credits or native on-chain USDC.

Pay-per-call onchain data & AI reports for agents on Base and NEAR — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, NEAR token and account checks, and AI-written verdicts. Paid per request in USDC over x402, no API keys.

Pay-per-call onchain data & AI reports for agents on Base and NEAR — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, NEAR token and account checks, and AI-written verdicts. Paid per request in USDC over x402, no API keys.

Pay-per-call Base onchain-safety, wallet-intel & AI tools over x402. Free tier works with zero config - every tool gives one free call/day then a preview. Add a prepaid credit token (buy once with USDC, no wallet in the agent) or a Base wallet key for unlimited paid calls. Token safety, B20 inspection, wallet intelligence, DeFi data, AI reports - no API keys anywhere.

Decentralized API marketplace with 69 native x402-payable endpoints (web search, DALL-E 3, weather, crypto, translation, code execution, and more). Multi-chain USDC on Base and SKALE. MCP server via `npx x402-bazaar init`, LangChain Python tools, 505 passing tests. ([GitHub](https://github.com/Wintyx57/x402-backend))