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PopNx MCPMCP servers for people who use AI · explained in plain words

TokenOracle

by VictoryInTechversion 1.0.1i★ –iComputer or cloud
Registry namecom.guffeyholdings/token-oracle

Install

Overview

Description from the maker (original English)

Hosted MCP server for LLM cost estimation, model comparison, and budget-aware routing.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Computer or cloud
  • Transport: stdio, Streamable HTTP
  • Category: Accounting, finance & tax
  • You need to fill in: TOKEN_ORACLE_API_KEY, X-API-Key

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 0 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • You fill in yourself: TOKEN_ORACLE_API_KEY, TOKEN_ORACLE_BASE_URL, TOKEN_ORACLE_SUBJECT, X-API-Key, X-Token-Oracle-Subject

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • Runs in the cloudNothing to install; it connects over the internet
  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "token-oracle": {
      "command": "npx",
      "args": [
        "-y",
        "token-oracle-mcp"
      ],
      "env": {
        "TOKEN_ORACLE_API_KEY": "your-value",
        "TOKEN_ORACLE_BASE_URL": "your-value",
        "TOKEN_ORACLE_SUBJECT": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http token-oracle https://mcp.guffeyholdings.com/TokenOracle --header 'X-API-Key: your-value' --header 'X-Token-Oracle-Subject: your-value'

Or run it on your computer

claude mcp add token-oracle --env TOKEN_ORACLE_API_KEY=your-value --env TOKEN_ORACLE_BASE_URL=your-value --env TOKEN_ORACLE_SUBJECT=your-value -- npx -y token-oracle-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "token-oracle": {
      "url": "https://mcp.guffeyholdings.com/TokenOracle",
      "headers": {
        "X-API-Key": "your-value",
        "X-Token-Oracle-Subject": "your-value"
      }
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "token-oracle": {
      "command": "npx",
      "args": [
        "-y",
        "token-oracle-mcp"
      ],
      "env": {
        "TOKEN_ORACLE_API_KEY": "your-value",
        "TOKEN_ORACLE_BASE_URL": "your-value",
        "TOKEN_ORACLE_SUBJECT": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "token-oracle": {
      "type": "http",
      "url": "https://mcp.guffeyholdings.com/TokenOracle",
      "headers": {
        "X-API-Key": "your-value",
        "X-Token-Oracle-Subject": "your-value"
      }
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "token-oracle": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "token-oracle-mcp"
      ],
      "env": {
        "TOKEN_ORACLE_API_KEY": "your-value",
        "TOKEN_ORACLE_BASE_URL": "your-value",
        "TOKEN_ORACLE_SUBJECT": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • TOKEN_ORACLE_API_KEY secret required env
    Hosted API key for TokenOracle
  • TOKEN_ORACLE_BASE_URL env
    Optional override for the hosted TokenOracle MCP endpoint
  • TOKEN_ORACLE_SUBJECT env
    Optional end-user subject forwarded to the hosted service
  • X-API-Key secret required HTTP header
    Hosted API key for TokenOracle
  • X-Token-Oracle-Subject HTTP header
    Optional end-user subject forwarded to the hosted service

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

  • ! Caution

    Maker matches the repo

    The publisher (guffeyholdings.com) is not the repo owner (VictoryInTech); someone else may have listed it

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • … Not checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Accounting, finance & taxi

  • More stars than 0% of the other 2919 servers in this category
  • Published to the registry more recently than 2% of the other 2919 servers in this category
  • Basic checks equal to or better than 24% of the other 2919 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is TokenOracle safe?

It passed 0 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: TOKEN_ORACLE_API_KEY, X-API-Key

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 8 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Finance Toolkit, SolidInvoice, Korea Tax Calculator

Alternatives

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

THIS REPO IS ARCHIVED AND THE SERVICE HAS BEEN SHUTDOWN

TokenOracle MCP

Token Oracle is a Model Context Protocol (MCP) server that estimates, compares, and controls LLM API costs before agents spend tokens. It exposes nine tools, four read-only Resources, and a cost_analysis_workflow Prompt template. It uses a proprietary pricing algorithm without a backing LLM to ensure deterministic budget workflows.

Designed to work with agent swarms backing one or zero employee companies, Token Oracle acts as a tiny CFO within your OpenClaw swarm keeping spend down and making suggestions to improve promptings.

Save them tokens, call Token Oracle today!

MCP tools exposed:

  • estimate_cost — Estimates the USD cost of a single LLM API call before execution. Input: task_description, prompt_text, task_type, or explicit token_count. Output: cost_usd, recommended_model, confidence, will_fit_context, pricing_updated. Annotations: readOnlyHint:true, idempotentHint:true, openWorldHint:false.
  • estimate_cost_batch — Prices up to 100 LLM tasks in a single call. Returns per-task breakdown, total_cost_usd, and cheapest_model_for_all. Use before starting any multi-step pipeline.
  • compare_models — Ranks LLM pricing across all supported providers for a given task. Returns models sorted by cost with speed_tier and quality_tier. Supports filtering by min_quality, max_cost_usd, and provider. Input: task_type, token_count, or prompt_text.
  • budget_check — Checks whether a planned task fits within a monthly budget. Returns can_proceed (boolean), remaining_budget_usd, budget_consumed_pct, and cheaper_alternatives with savings_pct. Input: monthly_budget_usd, current_spend_usd, and task description.
  • find_cheapest_for_budget — Inverse of budget_check. Given a budget_usd cap and task, returns the best model/quality combination within budget plus all alternatives ranked by quality then cost.

MCP Resources exposed:

  • token-oracle://meta — Machine-readable server capability document (version, model_count, pricing metadata)
  • token-oracle://models — Model IDs with metadata for discovery and validation
  • token-oracle://heuristics — Task-type token heuristics and keyword classifier patterns (auditable)
  • token-oracle://pricing/changelog — Append-only log of pricing changes; use to detect pricing updates over time

MCP Prompt exposed:

  • cost_analysis_workflow — Guided three-step prompt template: estimate_cost → compare_models → budget_check. Arguments: task_description, monthly_budget_usd (optional), quality_threshold (optional).

Supported providers: Anthropic, OpenAI, Google, Groq, Together AI, Mistral, DeepSeek, Cohere (100+ models).

Canonical agent workflow example: Goal: Run 500 product description generation tasks. Budget $50/mo, current spend $43.

  1. estimate_cost_batch({ tasks: [{ task_type: "generate", token_count: { input: 200, output: 800 }, quantity: 500 }] }) → total_cost_usd: $0.60
  2. compare_models({ token_count: { input: 200, output: 800 }, task_type: "generate", min_quality: "med", max_cost_usd: 0.002 }) → deepseek-v3 at $0.00035/task ($0.175 total) — 71% cheaper, same quality tier
  3. budget_check({ monthly_budget_usd: 50, current_spend_usd: 43, token_count: { input: 200, output: 800 }, model: "deepseek-v3" }) → can_proceed: true, remaining: $6.825, budget_consumed_pct: 2.4%

Decision: Use deepseek-v3. Save $0.425 vs gpt-4o-mini.

Pricing:

  • Free: 1000 API calls/day, all hosted tools via the remote endpoint, no credit card
  • Pro ($29/mo): Unlimited calls, track_spend tool (persisted cost ledger per API key), priority throughput, spend attribution per agent/task/session

Contact: info@guffeyholdings.com

Hosted endpoint

  • Canonical remote MCP URL: https://mcp.guffeyholdings.com/TokenOracle
  • Canonical MCP name: com.guffeyholdings/token-oracle

Direct remote configuration:

{

"mcpServers": { "token-oracle": { "type": "streamable-http", "url": "https://mcp.guffeyholdings.com/TokenOracle", "headers": { "X-API-Key": "${TOKEN_ORACLE_API_KEY}" } } } }

npm bridge package

For local clients that still expect an npm-installed stdio server, use token-oracle-mcp.

Zero-input trial flow:

Start the bridge with no API key and, when the hosted service has trial auth enabled, it will automatically fetch and store a metered trial credential on first launch.

{

"mcpServers": { "token-oracle": { "command": "npx", "args": ["-y", "token-oracle-mcp"] } } }

One-time explicit login flow:

npx -y token-oracle-mcp login

With --api-key, that validates and stores a paid hosted API key. Without --api-key, it requests and stores a hosted trial credential instead. After either flow, the MCP config does not need to inject TOKEN_ORACLE_API_KEY.

{

"mcpServers": { "token-oracle": { "command": "npx", "args": ["-y", "token-oracle-mcp"] } } }

If you prefer stateless setup, keep passing TOKEN_ORACLE_API_KEY as an environment variable instead.

Hosted trial behavior:

  • Trial credentials are metered and capped server-side
  • Once the hosted trial request limit is reached, the service returns an upgrade-required response
  • The hosted service reuses the same still-valid trial credential for the same claimant instead of minting a fresh token each time
  • Trial issuance is separately throttled and can be blocked by server-side abuse risk scoring
  • Later, a hosted upgrade flow can replace the stored trial credential with a paid credential without changing MCP config

Optional bridge environment variables:

  • TOKEN_ORACLE_API_KEY: optional hosted API key; overrides any stored credential
  • TOKEN_ORACLE_BASE_URL: override for the remote endpoint; defaults to https://mcp.guffeyholdings.com/TokenOracle
  • TOKEN_ORACLE_SUBJECT: optional end-user subject forwarded as X-Token-Oracle-Subject

Additional bridge commands:

  • npx -y token-oracle-mcp login: accept --api-key for paid auth, or fetch a hosted trial credential when no key is supplied
  • npx -y token-oracle-mcp logout: remove locally stored credentials

Capabilities

Tools:

  • estimate_cost
  • estimate_cost_batch
  • compare_models
  • budget_check
  • find_cheapest_for_budget
  • get_budget_status
  • list_request_activity
  • get_usage_summary
  • get_usage_leaderboard

Resources:

  • token-oracle://meta
  • token-oracle://models
  • token-oracle://heuristics
  • token-oracle://pricing/changelog

Prompts:

  • cost_analysis_workflow

Versioning

  • Hosted service version: 1.0.6
  • Bridge package version: 1.0.6
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