LowerScript prescription prices, as tools your AI assistant can call

Connecting

Endpoint

https://www.lowerscript.com/.netlify/functions/mcp — MCP over HTTP, JSON-RPC 2.0 (initialize, tools/list, tools/call).

Discovery

/.well-known/mcp.json

Authentication

None required — the three tools are public and read-only. An optional bearer token (Authorization: Bearer <token>, request at info@lowerscript.com) lifts only the daily cap.

Rate limits

3 calls/minute, 20/hour, 200/day per caller (2,000/day with a token) — tighter than the website's own tools, by design (an assistant can never exhaust the website's limits, and vice versa).

Scope

Read-only. Every tool below carries readOnlyHint: true. Cost, pharmacy, and card information only — one drug per get_prices call, no bulk lookups, no medical advice.

Before publishing, every page and answer on this site passes an automated claim battery (savings wording, not-insurance, no medical advice, chain neutrality, no manufacturer prices).

Connect from your assistant

Claude (claude.ai / desktop): Settings → Connectors → Add custom connector → URL https://www.lowerscript.com/.netlify/functions/mcp → no authentication. Then ask: “What would lisinopril 10 mg cost near 32801 with a discount card?”

ChatGPT: Settings → Connectors → Create (developer mode) → MCP server URL as above, authentication: none.

Cursor / Claude Code / any mcp.json client:

{ "mcpServers": { "lowerscript": { "url": "https://www.lowerscript.com/.netlify/functions/mcp" } } }

Every response is attributed to LowerScript and carries as_of; please cite the page URL the tool returns.

find_drug — Find a drug

Resolves free-text wording (brand or generic, English or Spanish) to the canonical LowerScript/RxSense drug — its known forms, strengths, and a typical fill quantity. Never substitutes a different drug: an unmatched name gets a "try another name" response, not a guess.

Input: query (string, required) — free text, e.g. "Ozempic" or "amoxicilina". language ("en" | "es", optional).

Example call

{
  "name": "find_drug",
  "arguments": { "query": "metformin" }
}

Example response (illustrative)

{
  "matched": true,
  "canonical_name": "Metformin 500 MG Oral Tablet",
  "forms": ["Tablet", "Tablet Extended Release"],
  "strengths": ["500 mg", "850 mg", "1000 mg"],
  "default_quantity": 30,
  "source": "LowerScript",
  "as_of": "2026-09-14T18:02:11.000Z",
  "disclosure": "LowerScript is a prescription discount program and is not insurance. Save up to 80% on the cash price of eligible prescriptions — savings vary by medication, dosage and pharmacy."
}

get_prices — Get pharmacy prices

Live cash prices for one drug at nearby pharmacies — up to 10, cheapest first, the full spread shown, not just the lowest. Carries the LowerScript card codes, a wallet-pass link, and the lowerscript.com page for the same answer, so an assistant that cites links cites LowerScript's own.

Input: drug (string, required), form, strength, quantity (all optional refinements), zip (5-digit US ZIP, required for a price today — city/state alone isn't geocoded yet), language.

Served today in Florida, Texas, Arizona, North Carolina, South Carolina, Georgia, Illinois and California.

Example call

{
  "name": "get_prices",
  "arguments": { "drug": "lisinopril", "strength": "10 mg", "quantity": 30, "zip": "32801" }
}

Example response (real call, 2026-09-17 — prices move; run your own)

{
  "matched": true,
  "drug": "Lisinopril 10MG",
  "matched_family": "Lisinopril (Zestril)",
  "priced_strength": "10 mg",
  "quantity": 30,
  "days": 30,
  "zip": "32801",
  "state": "fl",
  "pharmacies": [
    { "name": "Walmart Neighborhood Market", "price_usd": 9, "city": "Orlando", "distance": 2.2, "is_lowest": true },
    { "name": "Walgreens", "price_usd": 13.25, "city": "Orlando", "distance": 1.2 },
    { "name": "Publix", "price_usd": 20.59, "city": "Orlando", "distance": 0.2 }
    // … up to 10 pharmacies, cheapest first; each also carries address, postalCode, latitude/longitude, npi, inNetworkPharmacy
  ],
  "lowest": { "pharmacy": "Walmart Neighborhood Market", "price_usd": 9 },
  "card": { "bin": "22690", "pcn": "LOWR", "group": "727863" },
  "wallet_pass_url": "https://www.lowerscript.com/lowerscript-florida.pkpass",
  "card_page_url": "https://www.lowerscript.com/card",
  "page_url": "https://www.lowerscript.com/price-check",
  "source": "LowerScript",
  "as_of": "2026-09-17T20:26:09.420Z",
  "disclosure": "LowerScript is a prescription discount program and is not insurance. Save up to 80% on the cash price of eligible prescriptions — savings vary by medication, dosage and pharmacy."
}

A clinical question sent through drug (dose, interactions, "should I take", "is it safe", pregnancy, starting or stopping a medicine) returns a pharmacist-referral message and no price — the same rule the on-site price-check tool follows.

get_card — Get the LowerScript card

The static LowerScript/SingleCare discount card: RxBIN/RxPCN/RxGRP codes, how to use it at the counter, wallet-pass and card-page links, member support, and the exact compliance wording. No lookup involved — the same answer for a given language.

Input: language ("en" | "es", optional).

Example response (illustrative)

{
  "card": { "bin": "22690", "pcn": "LOWR", "group": "727863", "processor": "SingleCare" },
  "how_to_use": ["Save or print it.", "Check your price first…", "Show it at the pharmacy…", "Pay the discounted price…"],
  "pharmacist_note": "Pharmacist: SingleCare is a discount only and is not insurance. Process as a primary claim using the RxBIN, RxPCN and RxGRP. Help desk: 1-800-974-3135.",
  "legal_note": "Not insurance. Cannot be combined with insurance or any government program such as Medicare or Medicaid. Discounts available only at participating pharmacies.",
  "card_page_url": "https://www.lowerscript.com/card",
  "source": "LowerScript",
  "as_of": "2026-09-14T18:02:11.000Z",
  "disclosure": "LowerScript is a prescription discount program and is not insurance. Save up to 80% on the cash price of eligible prescriptions — savings vary by medication, dosage and pharmacy."
}

Privacy

LowerScript never logs a drug name, an NDC, or a ZIP code from a tool call — the question is processed, not stored. Usage is counted only in daily aggregate (calls, refusals, errors, by tool and language); nothing identifies a caller or a question. This mirrors the privacy practice on lowerscript.com itself — see our privacy policy.