16 Services from plainchain.appin60.com

Returns the current ERC-20 token allowance (approved spending limit) granted by an owner to a spender on Base, Arbitrum, Ethereum, or Optimism, with a plain-language risk assessment.

Verifies an x402 USDC payment receipt on-chain by checking a settlement transaction hash, confirming the payer, recipient, and amount match expectations.

Returns current gas price, base fee, priority fee, and cost estimates for common transaction types on Base, Arbitrum, Ethereum, or Optimism

Search a directory of pay-per-call blockchain data API endpoints by natural language query, returning ranked results with pricing and usage statistics

Returns native ETH and ERC-20 token balances (with USD values) for a given wallet address on Base, Arbitrum, Ethereum, or Optimism

Returns the latest block metadata (hash, number, gas usage, transaction count, base fee, timestamp) for a specified EVM-compatible chain

Returns on-chain token metadata and market data (name, symbol, decimals, supply, price, volume, liquidity) for a given ERC-20 contract address on Base, Arbitrum, Ethereum, or Optimism

Returns a cryptographically verifiable random number derived from on-chain block hash, with optional dice and coin-flip results, on Base, Arbitrum, Ethereum, or Optimism.

Decodes and retrieves detailed information about a blockchain transaction by hash, including token transfers, fees, status, and confirmations across Base, Arbitrum, Ethereum, and Optimism.

Returns current USD spot prices for one or more cryptocurrency symbols (e.g. ETH, BTC, SOL) sourced from Coinbase, paid per-call via x402 USDC on Base.

Returns address type classification, ERC-20 token metadata, proxy details, and a human-readable summary for any EVM address on Base, Arbitrum, Ethereum, or Optimism

Returns a verifiably random fortune string selected by hashing the latest block on Base, providing tamper-resistant randomness anchored to blockchain state.

Echoes back a verified x402 payment receipt, confirming that a micropayment was correctly received, parsed, and validated before granting access to Plainchain's blockchain data APIs.

Returns the list of available pay-per-call blockchain data resources offered by a given host in the Plainchain bazaar, including pricing and usage statistics.

Returns a rotating crypto/blockchain historical fact along with a block number, chain name, and index, served pay-per-call via x402 on Base

Registers your x402-enabled API origin with x402scan so its endpoints are discoverable and indexed