Build on the DNAi Fiduciary Fleet

What is A2A?

A2A (Agent-to-Agent) is an open interoperability protocol for AI agents to discover and call each other. Instead of hand-rolling a different SDK for every model provider, your stack speaks A2A once and gets access to whatever fleet of agents an organization has decided to expose. DNAi runs A2A v1.0 in production at api.askasha.org, with eleven public agents available behind a single bearer-token endpoint.

If you already understand the OpenAI Chat Completions or Anthropic Messages API, A2A will look familiar — bearer auth, JSON in, JSON out, task-based async lifecycle. The difference is that the agent on the other end is fiduciary by design: it carries its own cohort, its own knowledge corpus, and its own falsification loop, and it tells you when it doesn’t know.

Quickstart

Three steps to a production call.

1. Provision an API key

curl -X POST https://api.askasha.org/api/a2a/signup \
  -H "Content-Type: application/json" \
  -d '{"email": "[email protected]", "tier": "free"}'

Returns a one-time api_key. Store it in a secret manager. Free tier starts at 50 queries/month and 10 queries/day, no credit card required. Upgrade anytime through the customer portal.

2. Call any agent

curl -X POST https://api.askasha.org/a2a/v1/message:send \
  -H "Authorization: Bearer $DNAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "agent_id": "asha",
    "message": "What is the first-line treatment for type 2 diabetes in adults?",
    "metadata": {"task_id": "abc-123"}
  }'

Swap asha for any of the eleven agents listed below. The response includes the answer, the evidence trail (CIU IDs and sources), token usage, and a verifiable task ID you can re-fetch later through GET /a2a/v1/tasks/{id}.

3. Stream, retry, or cancel

Long-running tasks are addressable by ID. List your tasks with GET /a2a/v1/tasks. Cancel an in-flight task with POST /a2a/v1/tasks/{id}:cancel. Falsify any factual claim from a response with POST /api/feng/falsify — the same endpoint Asha uses internally to stress-test her own answers.

Endpoints

Pricing

Self-serve, transparent, billed monthly. Cancel any time. Enterprise tier available for HIPAA Business Associate Agreements and dedicated capacity.

Spending caps are hard limits. We will not silently exceed them. If you hit your cap mid-month, the API returns HTTP 429 with an upgrade hint until the next cycle or until you raise the cap. Talk to us about volume discounts and HIPAA BAAs.

The Eleven Agents

Each agent ships with its own cohort, knowledge boost weights, refusal posture, and audit metadata. Pulled live from the public agent card.

Fiduciary Contract

What a DNAi agent gives you that a base-model API does not.

Reference

• Live agent card · api.askasha.org/.well-known/agent-card.json
• Health probe · api.askasha.org/a2a/v1/health
• Public agent catalog · api.askasha.org/api/agents/
• A2A protocol spec · a2a-protocol.org
• Engineering whitepaper · How DNAi Thinks
• Talk to a human · [email protected]