Discover Fonteum, agent-to-agent.

A2A protocol-compliant agent card hosted at /.well-known/agent.json. Five skills, JWT auth, machine-discoverable. Live and queryable now.

Supported by Google A2A Protocol

01 · QUICK START

One command. No auth required.

The agent card is public. No key required to discover capabilities. Authentication is required only at the skill-execution layer.

curl https://fonteum.com/.well-known/agent.json

02 · ANNOTATED CARD

Every field explained.

The annotated card below is what /.well-known/agent.json returns, with inline comments explaining each field.

{
  // A2A spec version
  "schema_version": "v0.1",

  // Brand name for agent discovery surfaces
  "name": "Fonteum",

  // One-sentence capability summary — do not expand beyond scope
  "description": "Federal healthcare data infrastructure. CMS and HHS-OIG only. Row-level provenance. FHIR R4-native.",

  // Canonical URL — resolves to the public brand hub
  "url": "https://fonteum.com",

  "provider": {
    "organization": "Fonteum, Inc.",
    // Agent documentation and rate limit details live here
    "url": "https://fonteum.com/for/ai-agents"
  },

  // CalVer — year.month.patch
  "version": "2026.05.1",

  // All endpoints require a signed JWT in the Authorization header
  "authentication": { "type": "bearer", "scheme": "JWT" },

  // Five callable skills — each maps to a FHIR or REST endpoint
  "skills": [
    {
      "id": "npi_lookup",
      "name": "NPI Lookup",
      "description": "Look up a US healthcare provider by NPI."
    },
    {
      "id": "leie_check",
      "name": "LEIE Exclusion Check",
      "description": "Check if an NPI is on the HHS-OIG LEIE."
    },
    {
      "id": "facility_lookup",
      "name": "Facility Lookup",
      "description": "Look up a CMS-certified facility by CCN."
    },
    {
      "id": "hcris_financials",
      "name": "HCRIS Financials",
      "description": "Retrieve CMS HCRIS cost-report financials for a facility."
    },
    {
      "id": "provider_ownership",
      "name": "Provider Ownership",
      "description": "Retrieve SNF ownership records joined by CCN."
    }
  ],

  // Full OpenAPI spec + tutorial at /api
  "documentationUrl": "https://fonteum.com/api",

  // GDPR + CCPA position documented at /trust
  "privacyPolicyUrl": "https://fonteum.com/trust"
}

03 · FIVE SKILLS

What the agent can do.

04 · INTEGRATION

Copy-paste integration in Python, TypeScript, or cURL.

import httpx

# Fetch the agent card
card = httpx.get("https://fonteum.com/.well-known/agent.json").json()
print(card["skills"])  # List of 5 skills

# NPI lookup (requires JWT)
headers = {"Authorization": f"Bearer {YOUR_JWT}"}
provider = httpx.get(
    "https://fonteum.com/api/fhir/Practitioner",
    params={"identifier": "1234567890"},
    headers=headers,
).json()

import type { AgentCard } from "@/types/a2a";

// Fetch the agent card
const card: AgentCard = await fetch(
  "https://fonteum.com/.well-known/agent.json"
).then((r) => r.json());

// NPI lookup (requires JWT)
const provider = await fetch(
  "https://fonteum.com/api/fhir/Practitioner?identifier=1234567890",
  { headers: { Authorization: `Bearer ${jwt}` } }
).then((r) => r.json());

# Fetch the agent card (no auth required)
curl https://fonteum.com/.well-known/agent.json

# NPI lookup (requires JWT)
curl -H "Authorization: Bearer $JWT" \
  "https://fonteum.com/api/fhir/Practitioner?identifier=1234567890"

# LEIE exclusion check (requires JWT)
curl -H "Authorization: Bearer $JWT" \
  "https://fonteum.com/api/fhir/Practitioner/1234567890/\$leie-check"

05 · LIMITS + ERRORS

Rate limits and error codes.