Structure, triggers, secrets, prompt-injection, broken links and autonomy — one verdict with a reproducible hash.
Free — 50 calls per day, forever. Discovery
(initialize, tools/list) is always free.
$0.02 per call — USDC on Base mainnet over x402. No account, no API key: ask, sign, retry.
$19 / 30 days — no daily cap. POST https://rta.lat/skilllint/subscribe, same wallet, then send x-subscription.
https://rta.lat/skilllint/mcp
0xefCD6886f73064ea9EcbaA4741Ef1309A0885C59 — the same wallet for every product, so revenue
does not scatter.