x402 paywall template for any HTTP API (download). Download the x402 Proxy Template v1.0.0 (zip, MIT): a Cloudflare Worker that puts an x402 paywall (USDC on Base, x402 v2 + v1) in front of any HTTP API from one config file, with Bazaar discovery metadata, OpenAPI, remote + stdio MCP, OpenAPI importer, mock API, smoke test, 11 tests, quickstart and deploy guide.

AI tool directory submission with 24-hour review. YourAITools listing (19.00 USDC): fast-track review of your AI tool within 24h, published on youraitools.co if approved. POST JSON {tool_url,name,contact_email,category}; invalid bodies get 400 before payment. Reviewed for legitimacy and fit; payment does not guarantee approval. Rejected = refunded manually in USDC.

Is this website a crypto phishing or wallet-drainer site? Checks the URL against the GoPlus phishing database and returns a plain answer plus any malicious contracts tied to it. Check before an agent connects a wallet. $0.01 per call.

Latest block number on Base, Ethereum, Arbitrum, Optimism, Polygon or BSC. $0.01 per call.

Native coin balance (ETH/POL/BNB) of any address, read live from the chain. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.

Current gas price, base fee and priority fee in gwei plus the cost of a plain transfer, for Base, Ethereum, Arbitrum, Optimism, Polygon or BSC. $0.01 per call.

Ethereum: Full smart-contract security scan of an ERC-20 token: honeypot, buy/sell/transfer tax, mintable, proxy, hidden owner, self-destruct, pausable, blacklist/whitelist, tax-modifiable, owner and creator share, creator's past honeypots, CEX/DEX listings. GoPlus + honeypot.is simulation merged in one JSON. $0.02 per call.

Ethereum: Top 50 holders of a token with share of supply, balances, contract/exchange labels, burned share and concentration (top 1/5/10/20). Spot whale-controlled and insider-heavy tokens. $0.03 per call.

Ethereum: Is this token safe? Send an ERC-20 contract address, get a plain-English verdict (LOW_RISK / CAUTION / HIGH_RISK / DANGER) and 0-100 risk score from honeypot simulation, buy/sell tax, owner powers (mint, pause, blacklist, proxy), LP lock, holder concentration, liquidity, volume and pair age. Rug-pull and scam check for trading agents. $0.02 per call.

Block by number (or latest): time, hash, transaction count, gas used and limit, base fee, proposer. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.

Transaction receipt: success or failed, gas used, fee paid, logs, token-transfer events, created contract. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.

Raw transaction by hash: from, to, value, nonce, block, gas, type, method selector, pending flag. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.

Is this address a contract? Bytecode size, EIP-1967 proxy implementation and EIP-7702 delegation. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.

Transaction count (nonce) of an address. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.

Live total supply of an ERC-20 token, decimals applied. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.

ERC-20 allowance a wallet has granted a spender, and whether it is unlimited: send "token,owner,spender". Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.

Ethereum: Can I sell this token? Honeypot detector: simulates a buy and a sell and returns is_honeypot, can_sell, real buy and sell tax and the reason. Check before an agent buys any new token. $0.02 per call.

Arbitrum One: Is this token safe? Send an ERC-20 contract address, get a plain-English verdict (LOW_RISK / CAUTION / HIGH_RISK / DANGER) and 0-100 risk score from honeypot simulation, buy/sell tax, owner powers (mint, pause, blacklist, proxy), LP lock, holder concentration, liquidity, volume and pair age. Rug-pull and scam check for trading agents. $0.02 per call.

OP Mainnet: Top 50 holders of a token with share of supply, balances, contract/exchange labels, burned share and concentration (top 1/5/10/20). Spot whale-controlled and insider-heavy tokens. $0.03 per call.

Ethereum: Trending DEX pools right now on Ethereum: token, price, liquidity, 24h volume, price change, transactions and pool age. $0.02 per call.