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FiscaLLM MCP Server

by magna56 Your server? Claim it
answering

FiscaLLM is answering right now. Last checked 12 min ago. It exposes 10 tools.

LLM prices, cost estimates and break-even, plus your app's AI cost and margin per user.

Uptime history 3 hours of history
3 hours agonow
100.0%
Uptime 24h
10 of 10 checks
10
Tools
read from the server
468 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check FiscaLLM every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

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.

run in your terminal
claude mcp add fiscallm --transport http https://fiscallm.com/api/mcp
Settings → Connectors → Add custom connector, then paste this address
https://fiscallm.com/api/mcp
~/.codex/config.toml
[mcp_servers.fiscallm]
url = "https://fiscallm.com/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "fiscallm": {
      "url": "https://fiscallm.com/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "fiscallm": {
      "type": "http",
      "url": "https://fiscallm.com/api/mcp"
    }
  }
}

Available tools 10

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

llm
get_llm_price
Current list price of one model by id, e.g. "gpt-4o-mini" or "claude-sonnet-4-5". Includes the long-context rate and any announced change.
list_llm_prices
Current list prices (USD per 1M tokens: input, cached input, output) for OpenAI, Anthropic and Google models, with announced price changes. Use it to find a model id or to compare prices.
compare
compare_llm_costs
USD cost of the same call (same token counts) on each of several models, cheapest first. Use it to pick a model or to price a switch.
cost
get_cost_breakdown
The app's AI cost over a period split by model and by feature. Needs the app's key.
estimate
estimate_llm_cost
USD cost of a call to a model from its token counts, at list price, and the total for a number of such calls.
fiscallm
fiscallm_setup_guide
What FiscaLLM is and the ways to send it AI usage (OpenTelemetry, LiteLLM, SDK, HTTP), connect revenue, and read margins back.
margin
get_margin_overview
The app's AI cost, revenue, margin, share of revenue spent on AI, request count and daily series over a period. Needs the app's key.
plan
get_plan_margins
AI cost, revenue and margin of each plan or product over a period. Needs the app's key.
subscription
subscription_break_even
How many AI messages a month a subscriber can send before the model cost uses up what the plan earns, after the store or payment fee. Answers: does this plan price cover this model?
users
list_users_by_margin
Each user's AI cost, revenue and margin over a period, the users losing the most money first. Needs the app's key.

Endpoints

URLTransportStateLatencyChecked
https://fiscallm.com/api/mcp streamable-http answering 236 ms 12 min ago

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FiscaLLM — questions

Answers built from our own checks of this server.

What can FiscaLLM do?
It exposes 10 tools, read directly from the server on our last check. Among them: compare_llm_costs, estimate_llm_cost, fiscallm_setup_guide, get_cost_breakdown, get_llm_price, get_margin_overview and 4 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is FiscaLLM working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 10 of 10 checks got a reply (100.0%), average response time 468 ms. The bar chart above shows every period we have measured.
How do I connect FiscaLLM?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does FiscaLLM need an API key?
No. FiscaLLM completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is FiscaLLM?
It answers our handshake in 468 ms on average, which is faster than 25% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.