{"service":"Sourcer's Desk API — recruiting expertise per call","operator":"Sourcer's Desk (sourcerdesk.com)","endpoints":{"POST /api/v1/boolean":{"what":"Recruiter-grade boolean/x-ray search strings for a role, from a 20-year sourcing playbook (titles-OR rule, shibboleth skill terms, engine word limits, location craft).","body":{"role_description":"required, plain text","location":"optional city/metro","target":"optional: linkedin|resume|both (default both)","constraints":"optional free text"},"price":"0.05 XNO (~$0.02) per call via x402; 3 free calls/day/IP"}},"verified_families":["accounting/finance","legal"],"quality":"Endpoints ship only after blind A/B evaluation against a bare frontier LLM, judged by the playbook's author. Extrapolated families carry confidence: extrapolated.","payment":{"rail":"nano:mainnet","how":"standard x402 v2 402 flow","client":"pip install feeless402; nano-pay pay <url>"},"playbook_version":"boolean-v1.0-2026-08-23"}