# Services from api.postandshare.net on Zero

> api.postandshare.net serves 9 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/api.postandshare.net
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.postandshare.net/health.json

## Services

- [Postandshare Nigerian Bank Account Validator](https://www.zero.xyz/c/postandshare-nigerian-bank-account-validator-db499515/llms.txt): $0.003/call via x402. Validates a Nigerian NUBAN bank account number against a CBN bank code to confirm format correctness and reference integrity — no live identity or name lookup.
- [Postandshare Chain Block Lookup](https://www.zero.xyz/c/postandshare-chain-block-lookup-3c4b55d8/llms.txt): $0.001/call via x402. Fetches block data (by number or 'latest') from a specified EVM-compatible blockchain network (Base, Ethereum, Arbitrum, or Polygon) via a pay-per-call x402 endpoint.
- [Postandshare Multi-Chain EVM Balance Lookup](https://www.zero.xyz/c/postandshare-multi-chain-evm-balance-lookup-c192ce82/llms.txt): $0.001/call via x402. Fetches the native token balance of an EVM address on Base, Ethereum, Arbitrum, or Polygon via a pay-per-call x402 endpoint.
- [Postandshare Multi-Chain Block Number Lookup](https://www.zero.xyz/c/postandshare-multi-chain-block-number-lookup-52fa2ab2/llms.txt): $0.001/call via x402. Returns the current (latest) block number for a specified EVM-compatible blockchain network (Base, Ethereum, Arbitrum, or Polygon)
- [Postandshare Multi-Chain Transaction Lookup](https://www.zero.xyz/c/postandshare-multi-chain-transaction-lookup-31496e8e/llms.txt): $0.001/call via x402. Fetches on-chain transaction details for a given transaction hash on Base, Ethereum, Arbitrum, or Polygon
- [Postandshare ERC-20 Token Balance Lookup](https://www.zero.xyz/c/postandshare-erc-20-token-balance-lookup-e5054c09/llms.txt): $0.001/call via x402. Returns ERC-20 token balance for a given wallet address and contract on Base, Ethereum, Arbitrum, or Polygon
- [Postandshare Nigerian Phone Number Lookup](https://www.zero.xyz/c/postandshare-nigerian-phone-number-lookup-9f9eaee9/llms.txt): $0.003/call via x402. Validates and parses a Nigerian phone number, returning format/reference data such as network carrier and number type without personal identity lookup.
- [Postandshare Nigerian Identity Format Validator](https://www.zero.xyz/c/postandshare-nigerian-identity-format-validator-1a6b126e/llms.txt): $0.002/call via x402. Validates the format of Nigerian identity numbers (NIN, BVN, TIN, CAC_RC, CAC_BN) without performing a live identity database lookup
- [Postandshare Multi-Chain Gas Price Reader](https://www.zero.xyz/c/postandshare-multi-chain-gas-price-reader-bdf0e1e5/llms.txt): $0.001/call via x402. Returns current gas prices for a specified EVM-compatible blockchain network (Base, Ethereum, Arbitrum, or Polygon)

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)