Turn a PDF invoice into verified accounting JSON in one x402 call: parse with hallucination-guarded OCR, extract fields, verify the math. Flat $0.05.
How an agent checks an unfamiliar x402 seller before paying, and verifies order confirmations and receipts after buying.
Deterministic PDF utilities plus hallucination-guarded parsing: inspect, split, merge, read and verify documents in one shop.
One x402 call turns a meal photo into itemized nutrition JSON: dishes, portions, kcal range, protein/fat/carb - calibrated against 30 weighed meals, every call a 3-run consensus. $0.05/image.
Measured personal color analysis by API: free photo-quality precheck, then pixel colorimetry (CIELAB/ITA) cross-checked with a vision model, published 4-season rules. $0.05; full PDF report $2.99. No identification; images not stored.