# Services from agent-chain-kit-solana.vercel.app on Zero

> agent-chain-kit-solana.vercel.app serves 14 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/agent-chain-kit-solana.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/agent-chain-kit-solana.vercel.app/health.json

## Services

- [EVM Native Balance Lookup](https://www.zero.xyz/c/evm-native-balance-lookup-3274b3c4/llms.txt): $0.001/call via x402. Returns the native token balance (in wei and human-readable units) for a given EVM wallet address on Ethereum, Base, Arbitrum, or Polygon.
- [Global Weather Current Conditions API](https://www.zero.xyz/c/global-weather-current-conditions-api-42b5f4ff/llms.txt): $0.001/call via x402. Returns real-time current weather conditions (temperature, humidity) for any geographic coordinate worldwide via MET Norway data.
- [Global Weather & FX API – Foreign Exchange Rate Lookup](https://www.zero.xyz/c/global-weather-fx-api-foreign-exchange-rate-lookup-6681a24f/llms.txt): $0.001/call via x402. Returns the current foreign-exchange spot rate between two ISO 4217 currency pairs (e.g. USD to EUR).
- [Timezone Convert](https://www.zero.xyz/c/timezone-convert-8fcb52d4/llms.txt): $0.001/call via x402. Converts a datetime string from one timezone to another, returning the localized datetime and UTC offset in seconds.
- [Kilometers to Miles Converter](https://www.zero.xyz/c/kilometers-to-miles-converter-bd9bfbe7/llms.txt): $0.001/call via x402. Converts a distance value from kilometers to miles using deterministic arithmetic
- [EVM Block Number Lookup](https://www.zero.xyz/c/evm-block-number-lookup-276d5ca5/llms.txt): $0.001/call via x402. Returns the current block number for a specified EVM-compatible blockchain network (Ethereum, Base, Arbitrum, or Polygon).
- [Global Weather Forecast API](https://www.zero.xyz/c/global-weather-forecast-api-0c68d914/llms.txt): $0.001/call via x402. Returns an hourly weather forecast for a given latitude/longitude coordinate, paid per-call via x402/MPP with no API key required.
- [Text Checksum & Hash API](https://www.zero.xyz/c/text-checksum-hash-api-b83e942d/llms.txt): $0.0005/call via x402. Computes deterministic hash digests (MD5, CRC32, SHA-256) and byte count for a given text string
- [EVM Transaction Receipt Lookup](https://www.zero.xyz/c/evm-transaction-receipt-lookup-1b5ad6c6/llms.txt): $0.002/call via x402. Retrieves on-chain transaction receipt details (status, gas used, block number, contract address) for a given EVM transaction hash on Ethereum, Base, Arbitrum, or Polygon.
- [Base64 Encode/Decode Utility](https://www.zero.xyz/c/base64-encode-decode-utility-04d32d15/llms.txt): $0.0005/call via x402. Encodes or decodes a string using Base64 (standard or URL-safe variant), returning the transformed result and byte count.
- [HMAC Signature Generation API](https://www.zero.xyz/c/hmac-signature-generation-api-2f011bed/llms.txt): $0.0005/call via x402. Computes an HMAC signature (SHA-256, SHA-512, or SHA-1) over arbitrary text input and returns the hex, base64, and byte-length of the digest.
- [Cryptographic Hash API](https://www.zero.xyz/c/cryptographic-hash-api-062a2b22/llms.txt): $0.0005/call via x402. Hashes a text string using a selectable algorithm (SHA-256, SHA-512, SHA-1, or MD5) and returns the hex digest, base64 encoding, and byte count
- [JWT Decode & Verify](https://www.zero.xyz/c/jwt-decode-verify-dbee2132/llms.txt): $0.0005/call via x402. Decodes a JWT token and returns its header, payload, and signature verification status
- [Global Weather & FX API — x402 Audit Endpoint](https://www.zero.xyz/c/global-weather-fx-api-x402-audit-endpoint-bce7d938/llms.txt): $2/call via x402. Performs an x402 payment audit by accepting an origin and a list of endpoints, verifying x402 payment compliance for AI agent calls at $2 USDC per call.

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)