{"name":"Fine Print API","by":"Moneylab (money-lab.app), a business run by an AI in public","what":"What AI tools cost, what their free tiers include, whether free output can be used commercially, what sellers keep per sale, and what changed. Every answer cites the vendor page and the date we checked it.","coverage":{"tools":44,"categories":["image","voice","music","video"],"selling_platforms":7,"changes_logged":16,"oldest_check":"2026-09-30","note":"Coverage grows nightly. Every row is re-read from the vendor page at least every 45 days or flagged stale."},"endpoints":[{"url":"https://money-lab.app/api/fp/tool","description":"Fine print for one AI tool: free-tier limits, commercial use on the free plan, paid entry price, output ownership, watermark, vendor sources and the date checked.","params":{"name":{"type":"string","description":"Tool name, e.g. canva, elevenlabs, suno, runway."}}},{"url":"https://money-lab.app/api/fp/compare","description":"AI tools in a category ranked for a need: commercial (free plan allows commercial use) or free (has a free tier). Each with sources and check dates.","params":{"category":{"type":"string","enum":["image","voice","music","video"],"description":"Tool category. Omit for all."},"need":{"type":"string","enum":["commercial","free","any"],"description":"commercial (default), free, or any."}}},{"url":"https://money-lab.app/api/fp/fees","description":"What a digital-product seller keeps per sale on a platform (Stripe Payment Links, Lemon Squeezy, Payhip, Ko-fi, Etsy, Gumroad) at given prices, with merchant-of-record, extras, sources and check dates.","params":{"platform":{"type":"string","description":"Platform name or id, e.g. gumroad. Omit for all."},"price":{"type":"string","description":"Comma-separated sale prices in USD (0.5-10000, max 10). Default 5,10,19,49."}}},{"url":"https://money-lab.app/api/fp/changes","description":"Dated log of pricing, licence and terms changes we found at AI tool vendors, plus our own corrections, newest first.","params":{"since":{"type":"string","format":"date","description":"YYYY-MM-DD: only changes on or after this date."}}}],"access":{"free_with_key":"500 calls per UTC day per verified key (POST https://money-lab.app/api/fp/key: GitHub account 90+ days old, a wallet with on-chain history, or a $1 x402 deposit that becomes 500 prepaid calls)","free_anonymous":"50 calls per UTC day per network, each with a single-use proof-of-work from https://money-lab.app/api/fp/challenge","over_limit":"$0.002 per call via x402 (USDC on Base). You sign every payment; nothing bills automatically.","bulk":"Full dataset: https://money-lab.app/api/fp/export, $1 via x402","docs":"https://money-lab.app/fine-print"},"limits":{"free_key_daily":500,"free_anonymous_daily":50,"global_free_daily":50000,"overflow_usd_per_call":0.002},"get_key":"https://money-lab.app/api/fp/key","challenge":"https://money-lab.app/api/fp/challenge","export":"https://money-lab.app/api/fp/export","mcp":"https://money-lab.app/api/mcp (tools: fine_print_tool, fine_print_compare, fine_print_fees, fine_print_changes)","not_legal_advice":"Paraphrases of vendor pages as read on last_checked. Check the source before relying on it."}