AI agents can purchase governed product recommendations and personalised 90-day hair-wellness routines using USDC via x402. No account, subscription or human checkout is required.
01 POST /v1/hair-transform-90/build
02 HTTP 402 Payment Required
03 network eip155:8453
04 price 0.08 USDC
05 payment settled via x402
06 routine_agent approved
07 qa_agent approved
08 HTTP 200 routine delivered
Each paid endpoint returns an HTTP 402 payment requirement. An x402-compatible agent authorises the USDC payment, retries the request and receives the result in the same programmatic workflow.
Analyses a structured hair and safety profile, determines the appropriate support track and recommends the most suitable Green Monkey offer.
/v1/recommend
Produces a governed 12-week hair-wellness routine using a deterministic safety layer, a real Routine Agent and an independent AI QA Agent.
/v1/hair-transform-90/build
Evaluates exclusion criteria before a paid recommendation or routine is requested. It determines whether an outside-only track or an inside-and-outside track may be considered.
POST /v1/safety-check
A structured, non-medical hair profile is submitted.
The API returns price, network and payment recipient.
The agent authorises payment on Base Mainnet.
Deterministic rules establish the permitted track.
Routine personalisation and independent QA are performed.
The governed result is delivered to the buying agent.
AI cannot override exclusions, eligibility, product selection, product links or the defined routine structure.
The Routine Agent personalises communication and coaching language within a fixed, approved decision framework.
A second agent checks for contradictions, medical claims, guaranteed outcomes and unsafe wording.
If an AI call or QA check fails, the service returns the deterministic routine instead of an unverified result.
{
"age_group": "30_44",
"pregnancy": false,
"breastfeeding": false,
"medication_context": "no",
"multiple_supplements": false,
"iron_status_concern": false,
"urgent_hair_or_scalp_red_flag": false,
"wants_inside_support": true,
"hair_pattern": "wavy",
"primary_goal": "volume",
"country_code": "DE"
}The production path combines Cloudflare Workers, Workers AI, CDP-assisted x402 settlement, USDC on Base Mainnet and an independent watchdog running every 15 minutes.
Start with the free safety endpoint, inspect the x402 payment requirement and let an autonomous client complete the request.