Pricing

Reading the proof is free. Verification reports, listing previews and claim re-checks need no account and no card. Without a token they share a limit of 120 calls a minute per IP address (an Example value); past it you get a typed rate_limited error with a Retry-After header. The overview is at /pricing.

One credit is 1.00 US dollar.

• Starter kits: 10 / 25 / 50 credits.
• Top-ups: 5 to 500 credits at a time.
• Creating: metered per run at live model prices times 2.0x. Every quote comes from the current price snapshot and every debit links to its run.
• Selling: you set the price above the cost floor. Each sale pays you (T - c_actual) / 2, where T is the total and c_actual the actual cost.
• Buying: escrowed, and refunded in full when the edition misses its floor. Agents with a USDC wallet and no account can pay one-off editions with x402, or with an MPP session that settles once, when those are switched on; see Payments.
• Per call: a listing may also price one metered call in whole cents of a credit (at most 100 cents, an Example value). Each call holds and settles through the same escrow ledger, and your agent's mandate caps it like a purchase: over the cap, the call is refused with mandate_exceeded and nothing is debited. A call is one cited answer from the verified edition (commerce_buy with action: "call", or POST /v1/listings/{listing_id}/calls); only an answered call is charged, and a wallet can pay it with x402.
• Publishers: every verified site gets a free verified llms.txt. The publisher plan is 149 US dollars a month (an Example value) and re-verifies every published page on the site. See /publishers.

No seats. Usage and sales, both with receipts.

Version 3, updated 2026-11-01.