11 fiduciary agents, one API. 4 of them speak healthcare.
For health-tech engineers, EHR vendors, telemedicine platforms, and digital health startups.
The A2A protocol gives you programmatic access to our agent fleet with a single bearer key. This page introduces the healthcare-vertical agents. The full developer playground (live terminal, all 11 agents, billing, rotation, code samples) is one click away.
Get a free API key Read the A2A specFree Sandbox: 250 queries / month, 50 / day (20 RPM) · $10 Pay-As-You-Go top-up (1,000 eval queries/mo through Jan 2027) · All 11 agents · A2A v1.0 protocol · Audit trail
The 4 healthcare agents on A2A
One protocol. Four agents tuned for distinct healthcare jobs. Each one is callable by changing a single field in the request body.
Asha · agent_id: asha
Consumer-facing medical intelligence. Symptoms, medications, conditions, second opinions. Grounded in 48M+ biomedical abstracts. The fiduciary biomedical baseline.
Lyra · agent_id: lyra
Medical research intelligence. Systematic literature search, meta-analysis support, clinical-trial review, citation-precise answering across 96M+ research vectors. No fabricated PMIDs.
Sage · agent_id: sage
Nutrition, wellness, and wisdom intelligence. Real food data (USDA, FoodB, OpenFoodFacts, IndB, FAO). Gut-brain axis. Therapeutic presence. Ancestral wisdom traditions where relevant.
Arohi · agent_id: arohi
Medical practice management intelligence. Patient longitudinal records, scheduling, billing context, clinical alerts. Built for physicians, speaks clinical terminology, never interacts with patients directly.
A2A protocol, in 5 lines
The agent-to-agent protocol that the fleet speaks. Read the full spec at dnai.systems/a2a.
/.well-known/agent-card.json
/a2a/v1/message:send
/a2a/v1/tasks/{id}
/a2a/v1/tasks
/a2a/v1/tasks/{id}:cancel
/a2a/v1/health
Protocol: A2A v1.0 (deployed March 28, 2026).
Auth: Bearer API key in the Authorization header.
Base URL: https://api.askasha.org.
Discovery: the agent-card.json endpoint returns all 11 public agents.
Pricing teaser
Real tiers, real limits, real billing. Pulled directly from the live billing config.
| Tier | Monthly Cap | Daily Cap & Rate | Pricing & Spend Cap | Best For |
|---|---|---|---|---|
| Free Sandbox | 250 queries / month | 50 / day (20 RPM) | $0 (hard cap) | Exploration, prototyping (2K in/out tokens included) |
| Pay-As-You-Go | 1,000 eval queries / mo (through Jan 2027) | 250 / day (60 RPM) | $10+ top-up ($0.03/q + $4/1M in, $16/1M out overage) | Extended evaluation, variable workloads |
| Developer | 1,000 queries / month | 250 / day (60 RPM) | $49 / mo ($100 cap) | Indie builds, MVPs |
| Pro | 10,000 queries / month | 2,000 / day (120 RPM) | $199 / mo ($500 cap) | Production workloads |
| Enterprise | Effectively unlimited | Unlimited (240 RPM) | $999 / mo ($5,000 cap) | EHR / health-system integration, BAA, Mid ($0.30/q) & Apex ($0.85/q) |
Source: TIER_CONFIG in src/api/core/a2a_billing.py. The Free Sandbox and $10 Pay-As-You-Go top-up reach all 11 agents (including the 4 healthcare agents above). Each standard Base query ($0.03) includes up to 2,000 input and 2,000 output tokens; overage above 2,000 tokens is metered at $4.00/1M input and $16.00/1M output tokens.
Code sample
One curl call against the live API. Replace YOUR_API_KEY with the key the developer playground gave you.
# Send a healthcare question to Asha via A2A v1.0 curl -X POST https://api.askasha.org/a2a/v1/message:send \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "agent_id": "asha", "message": { "role": "user", "parts": [ { "text": "What is the evidence for SGLT2 inhibitors in heart failure with preserved ejection fraction?" } ] } }'
Returns a task object with the agent's response, evidence citations, and usage metadata. Swap asha for lyra, sage, or arohi to hit a different healthcare agent.