Sage — Nutrition & Wellness by DNAi Systems

AI nutrition and wellness agent via the A2A protocol. Evidence-grounded nutrition guidance, gut-brain axis insights, therapeutic wellness. Named for both the wise elder and the healing herb (Salvia officinalis).

Backed by ~51M nutrition, wellness, and traditional-knowledge vectors (USDA FoodData Central, OpenFoodFacts global, herbal pharmacopoeia, gut-brain microbiome literature) drawn from the Citadel corpus.

Agent Card

https://api.askasha.org/.well-known/agent-card.json?agent_id=sage

A copy is included in this repo at agent-card.json.

Skills

ID	Skill	Description
nutrition-analysis	Nutrition Analysis	Macro/micronutrient analysis, dietary planning
food-interaction	Food-Drug Interaction	Food-drug interactions, nutrient depletions
wellness-assessment	Wellness Assessment	Holistic wellness with ancestral wisdom
gut-health	Gut-Brain Axis Analysis	Microbiome science, prebiotic/probiotic guidance

Quick Start

# 1. Get a free API key
curl -X POST https://api.askasha.org/api/a2a/signup \
  -H "Content-Type: application/json" \
  -d '{"email":"you@example.com","name":"Your Name","tier":"free"}'

# 2. Send a query
curl -X POST https://api.askasha.org/a2a/v1/message:send \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"message":{"role":"user","parts":[{"text":"How much protein should a 180lb male eat daily?"}]},"metadata":{"agent_id":"sage"}}'

Connect to Google Gemini Enterprise

Sage registers as a "Custom agent via A2A" inside any Google Gemini Enterprise app. Paste this repo's agent-card.json into Gemini Enterprise → your app → Agents → Add Agents → Custom agent via A2A and click through. The card carries both the A2A v1.0 supportedInterfaces[] shape AND top-level url / protocolVersion / iconUrl / documentationUrl for maximum parser compatibility. Full step-by-step in asha-a2a → Connect to Google Gemini Enterprise.

A2A Surface

Bearer-auth A2A v1.0 endpoints, identical across all DNAi agents — only the agent_id changes:

Endpoint	Purpose
POST /a2a/v1/message:send	Send a query, receive a Task
GET /a2a/v1/tasks/{id}	Poll task state and fetch artifacts
GET /a2a/v1/tasks	List recent tasks (scoped to caller)
POST /a2a/v1/tasks/{id}:cancel	Cancel an in-flight task
GET /a2a/v1/health	Health probe
POST /api/a2a/upgrade / GET /api/a2a/portal	Stripe upgrade and self-service billing
POST /api/a2a/rotate-key	Rotate your API key

Pricing

Tier	Monthly	Daily / Monthly Cap
Free	$0	10 / 50
Developer	$49	200 / 1,000
Pro	$199	2,000 / 10,000
Enterprise	Custom	Unlimited

Part of 11 public agents at DNAi Systems. Fleet discovery. MIT license (interface only — engine, knowledge collections, and architecture are proprietary).