530A Model calculator is answering right now. Last checked 12 min ago. It exposes 4 tools. Last commit 2 Aug 2026.
Free, deterministic 530A (Trump Account) projections, verified rules, and searchable guides.
What the code does
We read the source, 3 d ago · tools taken from the live server · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
b.innerHTML = dark ? sun : moon
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.
claude mcp add calculator --transport http https://mcp.530amodel.comhttps://mcp.530amodel.com[mcp_servers.calculator]
url = "https://mcp.530amodel.com"{
"mcpServers": {
"calculator": {
"url": "https://mcp.530amodel.com"
}
}
}{
"servers": {
"calculator": {
"type": "http",
"url": "https://mcp.530amodel.com"
}
}
}This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.
Available tools 4
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
explain_530a
fetch
project_530a
search
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://mcp.530amodel.com | streamable-http | needs auth | 82 ms | 12 min ago |
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530A Model calculator — questions
Answers built from our own checks of this server.