ACA Premium Tax Credit Calculator
io.github.theluckystrike/aca-premium-tax-credit-calculator-mcptheluckystrikestreamable-httpv1.0.0Scanned
2026 ACA premium tax credit: expired enhanced subsidy, 400% FPL cliff, FPL, APTC repayment rules.
4 tools: 1 change things and 3 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
1 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
4 tools
Changes things 1Claude Code: ask
Only reads 3Show 3 read-only tools
check_subsidy_cliffShows the dollar effect of the 400% federal poverty line subsidy cliff that returned for 2026 coverage after the enhanced premium tax credits expired: the cliff income for the hous…No findings
Why it is in this group
- The description's first verb is "show": a word for reading.
Description, as the server wrote it Shows the dollar effect of the 400% federal poverty line subsidy cliff that returned for 2026 coverage after the enhanced premium tax credits expired: the cliff income for the household, the credit at exactly 400% FPL, the credit at $1 more (zero), and the loss. With household_income it also gives the credit under 2026 rules, what the expired 2021-2025 enhanced rules would have given, and how much modified AGI must drop (for example through HSA or retirement contributions) to get back under the cliff.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: Subsidy cliff
get_aptc_repayment_capReturns the cap on repaying excess advance premium tax credit (APTC) at tax time.No findings
Why it is in this group
- The name "get_aptc_repayment_cap" says "get": a word for reading.
Description, as the server wrote it Returns the cap on repaying excess advance premium tax credit (APTC) at tax time. For tax year 2025: Form 8962 Table 5 ($375/$750 below 200% FPL, $975/$1,950 at 200-300%, $1,625/$3,250 at 300-400%, single/other filing status; no cap at 400% or more). For tax year 2026 and later there is NO cap: the One Big Beautiful Bill Act (P.L. 119-21 sec. 71305) repealed it, so the full excess is repaid. Many models trained before 2026 still quote the old caps.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: APTC repayment cap
get_federal_poverty_levelReturns the federal poverty line (FPL) used for the ACA premium tax credit for a coverage year, household size and state, plus the 100%, 133%, 138%, 150%, 200%, 250%, 300% and 400%…No findings
Why it is in this group
- The name "get_federal_poverty_level" says "get": a word for reading.
Description, as the server wrote it Returns the federal poverty line (FPL) used for the ACA premium tax credit for a coverage year, household size and state, plus the 100%, 133%, 138%, 150%, 200%, 250%, 300% and 400% income thresholds. Coverage year Y uses the HHS guidelines published in year Y-1: 2026 coverage uses the 2025 guidelines ($15,650 for one person in the 48 states and DC, $19,550 Alaska, $17,990 Hawaii); 2025 coverage uses 2024; 2027 coverage uses 2026. Copied from the Federal Register notices, not model memory.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: Federal poverty level
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http aca-premium-tax-credit-calculator https://aca-premium-tax-credit-calculator-mcp.lipmichal.workers.dev/mcpclaude mcp add --transport http aca-premium-tax-credit-calculator https://aca-premium-tax-credit-calculator-mcp.lipmichal.workers.dev/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__aca-premium-tax-credit-calculator__get_federal_poverty_level",
"mcp__aca-premium-tax-credit-calculator__check_subsidy_cliff",
"mcp__aca-premium-tax-credit-calculator__get_aptc_repayment_cap"
],
"ask": [
"mcp__aca-premium-tax-credit-calculator__calculate_premium_tax_credit"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as aca-premium-tax-credit-calculator. Review it before you use it.
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/io.github.theluckystrike/aca-premium-tax-credit-calculator-mcp/verify?hash=f1ee98ef2200252cc088375d0f17a818fb47443a13d2a56bfb6a99505e8b26e7" | jq -e '.changed == false'Pinned hash f1ee98ef2200, from Nov 2, 2026, 05:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/io.github.theluckystrike/aca-premium-tax-credit-calculator-mcp/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/io.github.theluckystrike/aca-premium-tax-credit-calculator-mcp)Source: MCP Registry · repository. Synced Nov 2, 2026, 05:17 UTC.