# Services from basetoolbox.cartonpliant.workers.dev on Zero

> basetoolbox.cartonpliant.workers.dev serves 7 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/basetoolbox.cartonpliant.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/basetoolbox.cartonpliant.workers.dev/health.json

## Services

- [Base Toolbox Uniswap v3 Preflight Check](https://www.zero.xyz/c/base-toolbox-uniswap-v3-preflight-check-b8bca918/llms.txt): $0.1/call via x402. Validates a Uniswap v3 swap on Base before signing — checks token sellability, expected output amount, and warnings about the transaction.
- [Base Toolbox: ETH/Token Price on Base](https://www.zero.xyz/c/base-toolbox-eth-token-price-on-base-3c98d172/llms.txt): $0.001/call via x402. Fetches the current USD price of ETH or a token on Base network using Uniswap v3 pool data
- [Base Toolbox – Gas Price Lookup](https://www.zero.xyz/c/base-toolbox-gas-price-lookup-a9c42542/llms.txt): $0.001/call via x402. Returns the current Base network gas price (base fee in gwei and estimated 21k-gas transfer cost in wei)
- [Base Toolbox – ERC-20 Allowance Checker](https://www.zero.xyz/c/base-toolbox-erc-20-allowance-checker-e51a9d07/llms.txt): $0.1/call via x402. Returns leftover ERC-20 token allowances on Base for a given wallet, listing spenders and suggested next actions like revoking
- [Base Toolbox ENS Resolver](https://www.zero.xyz/c/base-toolbox-ens-resolver-a1d3829d/llms.txt): $0.001/call via x402. Resolves an ENS name to its Ethereum address and resolver contract on Base
- [Base Toolbox Send Check](https://www.zero.xyz/c/base-toolbox-send-check-c60eacc4/llms.txt): $0.1/call via x402. Pre-flight validation check for token transfers on Base before signing, verifying safety and readiness of ERC-20 or native sends
- [Base Toolbox TX Explain](https://www.zero.xyz/c/base-toolbox-tx-explain-bf6fbc26/llms.txt): $0.1/call via x402. Decodes and explains a Base blockchain transaction before signing, identifying its kind (e.g. approve, swap) and recommended next step

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)