No MCP? No problem. Any agent that can issue HTTP requests can use minia2a’s 1,600+ pay-per-call APIs. Point Grok at llms-tasks.txt (task → endpoint, with sample params) or the machine-readable catalog, then call the endpoint.
1. POST https://minia2a.uk/x402/<service>
→ 402 Payment Required {accepts:[{amount, asset, payTo, network, scheme}]}
2. Trial (first 5 per wallet, no registration):
POST /x402/<service>?wallet=0xYOUR_WALLET
headers: X-Wallet-Signature: <sign "minia2a trial:<wallet>:<service>:<ts>">
X-Trial-Timestamp: <ts>
3. Pay: sign the 402 requirement as an EIP-3009 USDC authorization
with your EVM wallet, resend with header: X-PAYMENT: <...>
→ 200 with the result + a settlement receipt.
Need current gas? POST https://minia2a.uk/x402/gas. Validate an address? POST /x402/address-parse. Security-check a token? POST /x402/token-security {"token":"0x…"}.