01 · The problem
LLMs hallucinate PA rules
Ask any foundation model "does Texas Medicaid require PA for Ozempic for weight loss?" and you'll get a confident, plausible, frequently wrong answer. Payer policies change weekly. Training data is stale.
Auth57 MCP · For AI builders
Prior authorization data,
native to your AI agent.
The first Model Context Protocol server for prior-authorization data. Any Claude-compatible agent can query 51 states × 6 programs of CMS-0057-F and CMS-0062-P verified, citable PA rules natively — one config line, zero custom integration.
CMS-0057-F · CMS-0062-P · 51 states · 6 programs
AGENT · CLAUDE-SONNETTOOL CALL
→ REQUEST
use_mcp_tool(server: "auth57",tool: "auth57_pa_strategy",args: {state: "NJ",program: "medicaid_mco",drug: "biologics"})
← RESPONSE
{
"verdict": "pa_required",
"pathways": ["primary", "gold_card"],
"citations": verified
}
✓ GROUNDED · CITABLENO HALLUCINATION
Primer · Model Context Protocol
What MCP is, and why your agent needs one for prior authorization.
The Model Context Protocol is an open standard — introduced by Anthropic and now adopted across the AI ecosystem — that lets LLMs like Claude, ChatGPT, Cursor, and Zed connect to external tools and live data through a single, unified interface. One spec, any tool, zero glue code. Read the MCP spec →
02 · The protocol
MCP = tool calling, standardized
MCP servers expose typed tools and structured resources over HTTP or stdio. Any MCP-compatible client — Claude Desktop, Claude Code, Cursor, Zed, or a custom agent — can discover and invoke them. One server, every agent.
03 · The fix
Ground the agent in verified data
Auth57's MCP server gives your agent native access to CMS-0057-F and CMS-0062-P verified PA rules across 51 states and 6 programs. Every response includes source URLs and human verified-dates.
One config line · Zero integration
Wire Auth57 into any Claude-compatible client.
Drop one block into your client config. The agent picks up every tool — strategy, explain, draft-appeal, diff-policy, verify-claim, watch-subscribe — automatically.
Claude Desktop~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"auth57": {
"transport": {
"type": "http",
"url": "https://api.auth57.io/api/mcp",
"headers": {
"Authorization": "Bearer YOUR_AUTH57_API_KEY"
}
}
}
}
}Claude Code · Cursor · Zed.mcp.json (project root)
{
"mcpServers": {
"auth57": {
"url": "https://api.auth57.io/api/mcp",
"headers": {
"Authorization": "Bearer YOUR_AUTH57_API_KEY"
}
}
}
}Need help with auth, tool reference, or curl examples? See the developers page for the full toolset and signed-curl examples.
What it looks like
A grounded answer, with citations.
The agent recognizes a PA question, calls auth57_pa_strategy, and composes a reply from the verified result — never from pre-training. Source URLs and verified-dates flow through every response.
You
What's the PA status for Enbrel in NJ Medicaid?
Calling auth57_pa_strategy
Claude
Enbrel (etanercept) requires prior authorizationin New Jersey Medicaid. Submit through the enrollee's MCO PDL with step-therapy documentation — prior trial of a preferred TNF-alpha inhibitor or DMARD is typically required.
Cited source
nj.gov/humanservices/dmahs/info/njfamilycare-pdl
Verified 2026-04-02Confidence: highNo hallucination
Build with it
What teams ship on Auth57 MCP.
01 · Internal copilot
Build an internal PA lookup chatbot
Drop the MCP server into Claude Desktop or your team's internal Claude agent. Non-clinical staff can ask natural-language questions and get back a verdict, the source URL, and the next step — without learning a new portal.
For · Health plans · MCO ops · provider networks
02 · UM augmentation
Augment a UM workflow with conversational lookup
Wire MCP into a Claude agent that lives next to MCG, InterQual, GuidingCare, or your home-grown UM tool. Reviewers get cited PA answers as part of their existing flow — no rip-and-replace.
For · UM teams · payer technology · clinical ops
03 · Patient navigation
Claude agents for benefits navigation
Power member-facing benefits agents with grounded PA answers. Every response cites the state Medicaid manual, payer PDL, or CMS memo it came from — auditable, not improvised.
For · Care navigators · advocacy orgs · digital health
Simple pricing
One MCP plan. No surprises.
10,000 tool calls per 30 days. All states. All programs. Cancel anytime.
MCP
$83/mo · billed annually
Or $99/mo billed monthly · save $189/yr on the annual plan
- 10,000 tool calls per 30 days
- All 51 states + DC
- CMS-0057-F + CMS-0062-P verified
- All 6 MCP tools + 2 resources
- Source URL + verified-date on every response
- 24-hour change detection via Watch
- Listed on Anthropic, Smithery, mcp.so, Glama
First MCP for prior authorization
Stop letting your agent guess.
Anchor it to verified PA data.
One config line, every Claude-compatible client, every PA question grounded in citable state and federal sources.