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

Tollkit Crypto

by UltraStarzversion 0.1.0i★ –iRuns in the cloud
Registry nameio.github.UltraStarz/tollkit-crypto

Install

Overview

Description from the maker (original English)

Crypto news, perps, market pulse, price history and token checks for AI agents. USDC per call.

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: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Crypto & blockchain

Install

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

Before you install

You need

Which app do you use?

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

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://api.tollkit.dev/mcp/crypto

Run this in your terminal

claude mcp add --transport http tollkit-crypto https://api.tollkit.dev/mcp/crypto

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "tollkit-crypto": {
      "url": "https://api.tollkit.dev/mcp/crypto"
    }
  }
}

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": {
    "tollkit-crypto": {
      "type": "http",
      "url": "https://api.tollkit.dev/mcp/crypto"
    }
  }
}

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.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://api.tollkit.dev/mcp/crypto

Menu names can differ slightly by plan and over time.

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

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

What it can do

Tool names and descriptions exactly as the server reported them on Nov 7, 2026. The maker wrote them, not us; we show them as plain text.

  • check_my_balance

    Free. Check how much USDC is left in your own wallet on Base, so you can tell your human before you run out. Returns the balance and whether it's below your threshold. Read-only: it moves nothing. Tollkit never holds anyone's funds or keys. When to use: You pay for tools from a w

  • wallet_balance

    Check a wallet's balances on Base, Ethereum or Solana: native ETH or SOL, USDC (plus USDT on Ethereum and Solana), and any token contracts or SPL mints you list (up to 20), with symbols and decimals applied. Read live from the chain. $0.002 USDC per call over x402. Failed calls c

  • token_info

    Look up a token on Base, Ethereum (ERC-20 contract) or Solana (SPL mint): name, symbol, decimals and total supply, plus mint and freeze authority on Solana, read live from the chain. Use it to confirm what an address actually is before acting on it. $0.002 USDC per call over x402

  • transaction_lookup

    Look up a transaction on Base, Ethereum or Solana: did it succeed, when, who sent it, the fee, and every token movement with symbols and amounts (ERC-20 transfers; on Solana, SOL and token balance changes per owner). Use it to confirm a payment actually landed. $0.002 USDC per ca

  • token_price

    Get a token's current USD price on Base, Ethereum or Solana, read from its deepest on-chain pool (Uniswap v3 against USDC or WETH; on Solana, Orca Whirlpools against USDC or SOL) rather than a price API. Returns the pool used, how much liquidity backs the price, and a flag when t

  • token_check

    Check a token before buying, sending or accepting it, on Base, Ethereum or Solana: what it is, its USD price and liquidity, and plain warnings read from the chain (no pool, thin liquidity; on Base and Ethereum the contract's owner and whether it is upgradeable or can mint, pause,

  • wallet_portfolio

    Value a wallet in USD on Base, Ethereum or Solana: each holding (native coin, USDC/USDT and any tokens you list) priced from on-chain pools, the total, and warnings for thin pools or positions bigger than their pool. $0.005 USDC per call over x402. Failed calls cost nothing. Call

  • pretrade_check

    Before trading a token on Base, Ethereum or Solana: its USD price and liquidity, plain warnings read from the chain, how big your planned trade is next to the pool (rough price impact), how much your wallet already holds, and recent web results about the token. Facts, not advice.

  • crypto_news

    Get recent crypto news for a coin or topic: up to 10 articles from the past hour, day or week with publisher, date, snippet and link, plus a short AI read of the coverage (mood: positive, negative, mixed or neutral; a summary; main themes) written only from those headlines. A rea

  • perps_market

    Hyperliquid perpetuals: mark and oracle price, 24h change, current hourly funding rate (positive means longs pay shorts) and annualized, open interest in coins and USD, 24h volume and max leverage. Name up to 20 coins, or leave coins out to get the top markets sorted by volume, o

  • crypto_market_pulse

    Get the crypto market at a glance in one call: the Crypto Fear & Greed Index (today, yesterday, a week ago), BTC, ETH and SOL with perp price, 24h change, funding and Chainlink reference price, the highest and lowest funding rates, the biggest 24h gainers and losers, and Hyperliq

  • price_history

    Get past USD prices for a crypto asset (ETH, BTC, SOL, LINK and others with a Chainlink feed) over up to 365 days: up to 100 points read from Chainlink's on-chain price feed on Ethereum, each with its time and round, plus first, last, high, low and percent change. $0.002 USDC per

  • x_pulse

    The mood on X (Twitter) about a coin or crypto topic in the last 24 hours: bullish, bearish, mixed or quiet, a score from -1 (very bearish) to 1 (very bullish), how many posts were read, up to three short themes, and links to representative posts. Giveaways, bots and paid promoti

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

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account UltraStarz, which owns the repo

  • … 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

  • ✓ Pass

    Endpoint responds

    Responded in 684 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 13 tool descriptions and found no hidden instructions to the AI

Compared with others in Crypto & blockchaini

  • More stars than 0% of the other 1615 servers in this category
  • Published to the registry more recently than 73% of the other 1615 servers in this category
  • Basic checks equal to or better than 100% of the other 1615 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 Tollkit Crypto safe?

It passed 3 of 3 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?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 18 days 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: Smogon MCP, Mempool MCP, SA Crypto Tax Rules

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Smogon MCP

MCP server for competitive Pokemon, full dex data plus monthly Smogon usage statistics.

by mrfentmenVery new↓ 53/wkUpdated today

Runs on your computer

Mempool MCP

Bitcoin network status: recommended fees, mempool backlog, blocks, addresses, difficulty retargets.

by mrfentmenVery new↓ 184/wkUpdated today

Runs on your computer

SA Crypto Tax Rules

SA crypto tax: FIFO capital gains, tax estimates, CGT exclusion, capital vs revenue, CARF

by aiagenttools.co.zaEarlyUpdated today

Runs in the cloud✓ aiagenttools.co.za

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.

Tollkit MCP server

Pay-per-call tools for AI agents, as one remote MCP server:

https://api.tollkit.dev/mcp

No account and no API key. Each paid tool costs a fixed amount of USDC, paid per call with x402 on Base or Solana. A call that fails is never charged.

Listed in the official MCP Registry as io.github.UltraStarz/x402-extract.

Connect

Add the URL above as a remote (Streamable HTTP) MCP server in Claude, Cursor or any MCP client. In clients that take a JSON config:

{

"mcpServers": { "tollkit": { "url": "https://api.tollkit.dev/mcp" } } }

Paying: MCP has no 402 status, so a paid tool called without its payment argument returns the price quote as its result. Sign that quote with your x402 wallet and call the tool again with payment set. Six tools are always free: try_it_free (a real sample result), get_service_info, find_service, check_service, check_my_balance and verify_attestation. Fourteen give 3 free calls a day without a payment: read_page, screenshot_page, pdf_to_text, weather_forecast, airport_delays, geocode_address, exchange_rate, ip_lookup, wallet_balance, token_info, transaction_lookup, token_price, token_check and sec_company.

Tools

GroupToolsPrice per call
Web pages & documentsweb search (with date, site and news filters), search + read top pages, read a page or up to 5 at once in a real browser, screenshot, summarize, page brief, PDF to text$0.002 – $0.008
Public dataSEC filings, financials, company snapshot and due diligence; weather anywhere in the world (by point, or US address); FAA airport delays; US address geocoding; exchange rates; IP lookup$0.002 – $0.03
On-chain (Base, Ethereum, Solana)wallet balance and portfolio, token info, token price, token safety check, transaction lookup, pre-trade check$0.001 – $0.01
x402 market databest x402 tools for a task, seller lookup, full market dataset$0.01 – $0.10
Product dataprice, stock, brand, SKU and images from a store page; compare up to 5$0.01 – $0.04
Proofsigned, timestamped record of what a page said$0.05

Live prices: /health · every tool with its URL and body: llms.txt · tollkit.dev/tools

Without MCP

Every tool is also a plain HTTP endpoint: POST the JSON body, get HTTP 402 with the price, pay with any x402 client (for example @x402/fetch), repeat the request. OpenAPI per hostname, e.g. https://data.tollkit.dev/openapi.json.

This repo

server.json is the MCP Registry entry. src/ holds an older stdio client (the x402-extract-mcp npm package) that only wraps product extraction and is no longer maintained; use the remote server above instead.

More

MIT licensed.

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