Medicare Part D drug coverage from CMS monthly formulary files, current and next
Medicare Part D drug coverage from CMS monthly formulary files, current and next plan year: for a drug (name or RxCUI), in one plan, across a state's plans or over every formulary: coverage per strength, cost-share tier, prior authorization, step therapy, quantity limit, IRA negotiated-price flag, 30-day retail/mail cost, plan premium and deductible. Includes the CMS release date.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
28 msmedian answer time
$0.003listed price per call
$0.003price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://api.healthtravel-api.workers.dev/api/health/formulary-coverage-lookup
| Category | Commerce and shopping |
|---|---|
| Provider host | api.healthtravel-api.workers.dev |
| Networks | eip155:5042, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, xrpl:0 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-24 | valid payment request | 402 | $0.003 | 28 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"drug": "atorvastatin",
"limit": 10,
"state": "TX"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"drug": {
"description": "Drug name (generic or brand, e.g. atorvastatin, Eliquis) or an RxCUI",
"type": "string"
},
"limit": {
"description": "Max plans in a state listing, 1-100 (default 20)",
"type": "integer"
},
"plan": {
"description": "Optional plan id CONTRACT-PLAN[-SEGMENT], e.g. H0028-007 or S4802-075",
"type": "string"
},
"state": {
"description": "Optional 2-letter state: list the plans sold there with this drug's coverage",
"type": "string"
},
"year": {
"description": "Plan (contract) year, e.g. 2026 or 2027. Default: the current year if loaded, else the newest",
"type": "string"
}
},
"required": [
"drug"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}