Dental Clinic Loan Verification — FastMCP Server

Provider-Agnostic LLM · Local (Slingshot) → Cloud (Horizon)

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Switch LLM Provider — Zero Code Changes

# Use Anthropic Claude (default)
LLM_PROVIDER=anthropic
ANTHROPIC_API_KEY=sk-ant-...

# Use Google Gemini
LLM_PROVIDER=google
GOOGLE_API_KEY=AIza...

Provider	Default model	Override
anthropic	claude-sonnet-4-20250514	LLM_MODEL=claude-opus-4-5
google	gemini-2.0-flash	LLM_MODEL=gemini-1.5-pro

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Phase 1 — Local Dev with VS Code / Slingshot

python -m venv .venv && source .venv/bin/activate
pip install -r requirements.txt
cp .env.example .env   # add your API key

.vscode/mcp.json is already in the project — VS Code and Slingshot auto-discover it. Open the folder in VS Code and the tools appear automatically in agent mode.

To switch to Gemini in VS Code, edit .vscode/mcp.json:

"env": { "LLM_PROVIDER": "google", "GOOGLE_API_KEY": "${env:GOOGLE_API_KEY}" }

python demo.py        # end-to-end demo
mcp dev server.py     # browser tool inspector

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Phase 2 — Cloud Deploy on Horizon

# 1. Push to GitHub (.env in .gitignore)
git add server.py llm_tools.py llm_client.py requirements.txt .vscode/mcp.json
git push

# 2. Connect repo at https://horizon.prefect.io
#    Horizon auto-detects requirements.txt

# 3. Set secrets in Horizon dashboard:
#    LLM_PROVIDER=anthropic
#    ANTHROPIC_API_KEY=sk-ant-...

# 4. Get live URL: https://dental-loan-verifier.fastmcp.app/mcp

Switch Slingshot from local → cloud by updating .vscode/mcp.json:

{
  "servers": {
    "dental-loan-verifier": {
      "type": "http",
      "url": "https://dental-loan-verifier.fastmcp.app/mcp"
    }
  }
}

Zero code changes between local and cloud.

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File Structure

dental_loan_mcp/
├── server.py          ← FastMCP server + rule-based tools
├── llm_tools.py       ← LLM sub-agent tools (provider-agnostic)
├── llm_client.py      ← Provider switch: Anthropic / Google
├── demo.py            ← Local end-to-end demo
├── requirements.txt
├── .env.example       ← Copy → .env, add keys
└── .vscode/
    └── mcp.json       ← Auto-discovered by VS Code + Slingshot

---

Tool Reference

Tool	Type	LLM task
doc_validate_document_set	Rule-based stub	—
pan_validate	Rule-based stub → NSDL	—
fraud_registry_check	Rule-based stub	—
aadhaar_verify	Rule-based stub → UIDAI	—
dci_credential_verify	Rule-based stub → DCI	—
gst_verify	Rule-based stub → GST	—
llm_health_check	LLM	Shows active provider/model
llm_analyze_document	LLM Vision	Reads doc image, detects photo gender
llm_cross_check_documents	LLM Reasoning	Cross-doc inconsistencies
llm_assess_name_match	LLM Language	Indian name judgment
llm_fraud_reasoning	LLM Reasoning	Fraud signal clustering
llm_generate_risk_narrative	LLM Language	Final report writing
orchestrate_stage2_verification	Orchestrator	Full execution plan