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Healthparse Healthcare Data Gateway
io.healthparse/gateway in the official MCP registry.
Endpoint https://api.healthparse.io/mcp.
The registry describes it as: Pay-per-call US healthcare data: hospital financials, prices, quality, exclusions, wages.
We read its 42 tools on 2026-10-22. Nothing in them matched our tool-poisoning rules.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
hcris_hospital_search hcris_hospital_byCcn hcris_asc_search hcris_provider_search irs990_org_search irs990_org_byEin irs990_officers_search sanctions_leie_search oews_wage_search carecompare_hospitals_search carecompare_hospitals_byCcn carecompare_snf_search carecompare_snf_byCcn carecompare_home-health_search carecompare_home-health_byCcn carecompare_hospice_search carecompare_hospice_byCcn carecompare_dialysis_search carecompare_dialysis_byCcn hpt_rates_search sanctions_screen hpt_code_stats hcris_hospital_financials providers_events_feed hospitals_capex_signals providers_provider360 manufacturers_search manufacturers_openPayments hrsa_healthCenters_search hrsa_hpsa_search hrsa_coveredEntities340b_search nppes_enumeration_search prescribers_partDByDrug_search prescribers_partDClassYoyDelta_search prescribers_partDClassWhitespace_search prescribers_partDAtypicalSpecialty_search prescribers_partDBrandShareShift_search prescribers_lookup_search prescribers_partD_search openPayments_recipients_search openPayments_recipients_yoyIncrease_search manufacturers_openPayments_yoyIncrease_search
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/io-healthparse-gateway)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.