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spencermcw.com

19 agent-payable APIs. Every listing carries a tested call recipe - endpoint, auth shape, pricing, and known gotchas - on its detail page. spencermcw.com ↗

APICategoryPrice / callUptime 30dStatusDocs
Address API
Is this crypto address on OFAC’s SDN sanctions list? SDN entry, program, asset and list date for Bitcoin, Ethereum and EVM, Tron, Solana and other addresses, checked by Distill against OFAC’s own SDN file. Updated daily. $0.005 per call (x402, USDC on Base); 3 free calls a day.
-$0.005100.0%listedcall recipe →
Batch API
Are any of these crypto addresses on OFAC’s SDN sanctions list? Up to 100 addresses screened in one call, checked by Distill against OFAC’s own SDN file. Updated daily. $0.05 per call (x402, USDC on Base); 3 free calls a day.
-$0.05100.0%listedcall recipe →
Batch API
Sales-tax rates for up to 100 US locations in one call (Streamlined Sales Tax states)
-$0.10100.0%listedcall recipe →
Changes API
What changed in the Medicare Physician Fee Schedule this quarter? RVU, status, conversion-factor, GPCI and OPPS-cap change records between CMS releases, 2025 on, computed by Distill from CMS’s RVU files. Updated quarterly. $0.05 per call (x402, USDC on Base); 3 free calls a day.
-$0.05100.0%listedcall recipe →
Changes API
Which drug acquisition costs changed this week? NADAC per-unit cost changes and NDCs added or dropped, with CMS’s stated reason, 2025 on, from CMS’s weekly NADAC files. Updated weekly. $0.05 per call (x402, USDC on Base); 3 free calls a day.
-$0.05100.0%listedcall recipe →
Changes API
Which Medicare Part D formularies changed this month? Drugs added or dropped, tier, prior-authorization, step-therapy and quantity-limit changes and plan premium changes, computed by Distill from CMS’s monthly formulary files. Updated monthly. $0.05 per call (x402, USDC on Base); 3 free calls a day.
-$0.05100.0%listedcall recipe →
Changes API
Which crypto addresses did OFAC add to or remove from the SDN list? Per-publication change records (added, removed, entry updated), computed by Distill from OFAC’s own SDN files. Updated daily. $0.02 per call (x402, USDC on Base); 3 free calls a day.
-$0.02100.0%listedcall recipe →
Changes API
Quarterly sales-tax rate and boundary changes in the Streamlined Sales Tax states
-$0.05100.0%listedcall recipe →
Compare API
One billing code across up to 10 named hospitals, one normalized row each
-$0.02100.0%listedcall recipe →
Coverage API
Which Medicare Part D plans in this county cover this drug, at what tier and cost? Every PDP and Medicare Advantage drug plan with tier, prior authorization, step therapy, quantity limit, premium and copay, plan years 2026 and 2027, computed by Distill from CMS’s monthly formulary files. Updated monthly. $0.02 per call (x402, USDC on Base); 3 free calls a day.
-$0.02100.0%listedcall recipe →
Hospital price and file changes, as a paged feed
Hospital price and file changes, as a paged feed
-$0.05100.0%listedcall recipe →
Localities API
How does Medicare’s allowed amount for one code vary across the US? Physician Fee Schedule amounts in all 109 Medicare localities (or one state’s) with the national amount and range, computed by Distill from CMS’s RVU and GPCI files. Updated quarterly. $0.02 per call (x402, USDC on Base); 3 free calls a day.
-$0.02100.0%listedcall recipe →
Nadac API
What do US pharmacies pay for this drug? CMS’s National Average Drug Acquisition Cost (NADAC) per unit for an NDC, the generic’s NADAC for a brand and the weekly price history since January 2025, from CMS’s NADAC files on data.medicaid.gov. Updated weekly. $0.01 per call (x402, USDC on Base); 3 free calls a day.
-$0.01100.0%listedcall recipe →
Payers API
Negotiated prices for one billing code in one area, per canonical payer and plan type
-$0.02100.0%listedcall recipe →
Plan API
What does this Medicare Part D plan cost and cover? Premium, deductible, service area, cost sharing by tier and one drug’s terms for a contract-plan-segment id, computed by Distill from CMS’s monthly formulary files. Updated monthly. $0.01 per call (x402, USDC on Base); 3 free calls a day.
-$0.01100.0%listedcall recipe →
Prices API
Posted hospital prices for one billing code near a US ZIP code or point
-$0.02100.0%listedcall recipe →
Rate API
What does Medicare pay for this CPT or HCPCS code at this ZIP? Physician Fee Schedule facility and non-facility allowed amounts with the RVUs and GPCIs behind them, any US ZIP or Medicare locality, 2025 on, computed by Distill from CMS’s quarterly RVU files. Updated quarterly. $0.01 per call (x402, USDC on Base); 3 free calls a day.
-$0.01100.0%listedcall recipe →
Sales Rate API
The sales-tax rate at a US ZIP+4, ZIP or street address in a Streamlined Sales Tax state
-$0.005100.0%listedcall recipe →
Search API
Which NDCs match this drug name, and what do pharmacies pay for them? NADAC search by name (e.g. “atorvastatin 40”) with NDC counts and current per-unit cost ranges, from CMS’s weekly NADAC file. Updated weekly. $0.01 per call (x402, USDC on Base); 3 free calls a day.
-$0.01100.0%listedcall recipe →
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