# CostKits Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## CostKits

Look up US healthcare procedure costs, provider pricing, and your insurance out-of-pocket before you go.

- Record: https://musedirectory.ai/connector/costkits
- Category: Health
- Developer: CostKits (https://www.costkits.com/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 684ms, checked 2026-10-29T12:46:11Z
- Endpoint: https://mcp.costkits.com/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-28T14:41:09Z)
- Source: Found in the official MCP Registry (io.github.costkits/costkits-mcp) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.costkits%2Fcostkits-mcp

Connects to CostKits healthcare cost data. Estimates procedure costs by state and provider, calculates patient liability based on insurance plan details, finds providers with real negotiated rates, and screens for hospital financial assistance eligibility.

Example request: "How much will a colonoscopy cost me in Connecticut with my current insurance plan?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use CostKits to help me. It is a free service with an MCP server at https://mcp.costkits.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- demo_estimate: Static sample cost estimate (colonoscopy in Connecticut) from the CostKits API. Works with NO API key — use it to verify connectivity and see the response shape.
- estimate_procedure_cost: Returns the typical allowed-amount range (low, median, high) for one medical procedure in one US state, the usual billing components (facility, physician, anesthesia, pathology), and the data vintage. If the user chooses to give their own deductible, coinsurance and out-of-pocket
- calculate_liability: Stateless insurance math: given an allowed amount and a plan snapshot (deductible, coinsurance, OOP max), returns exact patient responsibility, plan payment, and the breakdown, plus p25/p75 scenarios. Use when you already have a dollar amount (e.g. from an EOB or a prior estimate
- full_estimate: One call chaining procedure ontology + cost + providers + patient liability. Cheapest way (one metered request) to get the complete picture. Use `fields` to request a subset; liability requires the plan_* inputs.
- find_providers: Lists up to 5 facilities in one US state that perform a procedure, with name, address and a pricing_status field: 'observed' means a negotiated rate is published in that facility's price transparency data, 'estimated' means only a state-level benchmark applies, 'none' means no pr
- get_provider: Public profile for a single provider by 10-digit NPI number: name, specialty, address, entity type.
- resolve_procedure: Maps a free-text procedure name ('knee mri', 'gallbladder removal') to a CostKits catalog slug with a confidence score. Returns best_match and alternatives; best_match is null when the procedure is not in the catalog.
- list_procedures: The full CostKits catalog: 30 procedures with slugs, display names, categories, and CPT codes (paginated).
- get_procedure_details: Structured knowledge about one procedure. aspect='facts' returns LLM-ready billing rules and cost drivers (best for grounding an answer); 'bundle' explains which separate bills to expect (facility, physician, anesthesia...); 'full' returns the complete ontology.
- get_coverage: Insurance coverage rules for a procedure/carrier combination. aspect: 'summary' (status + plain English), 'prior-auth', 'cost-sharing' (deductible/coinsurance/ACA preventive), 'frequency' (how often covered, age rules), or 'triggers' (Pro plan: billing events that flip a $0 preve
- list_carriers: All insurance carrier keys supported by the coverage tools (aetna, cigna, bcbs, medicare, ...). Works on the Free plan — also a good API-key sanity check.
- compare_bill_amount: Compares one dollar amount from a medical bill or explanation of benefits with the typical allowed-amount range (low, median, high) for the same procedure in the same US state, and says whether it is below, within or above that range, with questions worth asking the billing offic
- check_financial_assistance: Screen a household for hospital financial assistance (charity care): returns income as a percent of the federal poverty guidelines, the typical range hospital policies cover, what federal rules (IRS 501(r)) do and do not guarantee, and next steps. Use when a user asks whether the

Screening checks:
- MCP handshake: pass (Answered in 861ms)
- Domain against threat feeds (Cloudflare security DNS): pass (mcp.costkits.com, www.costkits.com not flagged)
- Published packages against the OSV malicious-package database: pass (No malicious-package advisories)
- Hidden instructions or invisible characters in tool text: pass (12 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 481 days ago)
- AI review of purpose and tool behavior: pass (No concerns)