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FitPulse Supplement Efficacy Ranker
x402
FitPulse Supplement Efficacy Ranker is a paid API for AI agents from fitpulse-vert.vercel.app, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-15).
Returns a PubMed-grounded, evidence-graded tier list of supplements ranked by fitness goal, with dosing and timing guidance.
Price / call$0.08
Success—
StatusUnknown
How this service works
Supplement efficacy ranking / what supplements actually work: evidence-graded tier list by goal. Returns a PubMed-grounded ranking (creatine and more) with recommended dosing and timing, filtered by budget and dietary restrictions. Fitness-info for fitness and nutrition agents, not medical advice.
Output
A PubMed-grounded tier list of supplements organized by the specified fitness goal, each with an evidence grade (e.g. A/B/C), recommended dosing amounts, optimal timing (pre/post-workout, with meals, etc.), and citations or references to supporting research.
Example use cases
Example prompt
“Can you give me an evidence-graded tier list of supplements for muscle building, including what dosage to take and when — I want it grounded in actual PubMed research, not marketing claims.”
Technical details
Endpoint
GEThttps://fitpulse-vert.vercel.app/api/fit/supplementsWhen to prefer
Choose this endpoint when an agent needs scientifically grounded, evidence-graded supplement recommendations tied to a specific fitness goal — not just generic product suggestions. Ideal for nutrition or fitness agents that need PubMed-backed rankings with dosing and timing, rather than anecdotal or marketing-driven advice.
Side effects
- Missing or unrecognized fitness goal parameter returns an error or empty result
- Overly broad or ambiguous goal may yield a generic rather than targeted tier list
- Service unavailability returns a 402 or 5xx error
- Invalid query parameters may result in a 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| goalrequired | string | Fitness goal (muscle-gain, fat-loss, endurance, recovery, general-health) |
| lang | string | Response language |
| budget | string | Monthly budget for supplements (e.g. $50, $100, $200) |
| restrictions | string | Dietary restrictions or intolerances (vegan, lactose-free, etc.) |
Output
Schema · Response
{
"type": "json",
"example": {
"goal": "muscle-gain",
"tier_1_essentials": [
{
"dose": "3-5g/day",
"supplement": "Creatine Monohydrate",
"evidence_grade": "A"
}
]
}
}Tags
x402
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