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

Agent Margin Router

by AgentMarginRouterversion 0.6.0i★ 0iRuns in the cloud
Registry nameio.github.AgentMarginRouter/agent-margin-router

Install

Overview

Description from the maker (original English)

38 x402 pay-per-call tools for AI agents (USDC/USDT on Base): web, crypto, on-chain, geo, packages

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://…3Connect4
https://agent-margin-router-production.up.railway.app/mcp

Run this in your terminal

claude mcp add --transport http agent-margin-router https://agent-margin-router-production.up.railway.app/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "agent-margin-router": {
      "url": "https://agent-margin-router-production.up.railway.app/mcp"
    }
  }
}

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": {
    "agent-margin-router": {
      "type": "http",
      "url": "https://agent-margin-router-production.up.railway.app/mcp"
    }
  }
}

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://…3Connect4
https://agent-margin-router-production.up.railway.app/mcp

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.

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 9, 2026. The maker wrote them, not us; we show them as plain text.

  • extract_clean

    Clean page extraction from any public URL: title, meta description, main text, JSON-LD, language. Optional `schema` keeps only the listed top-level keys. Apify (JS-rendered) with direct-fetch fallback. Pay per call with USDC or USDT on Base via x402 – no API key, no signup. 3 fre

  • market_spread

    Cross-exchange crypto spread from live tickers: gross spread, fees, modelled slippage, transfer cost and net edge in bps for a given trade size. Ticker/volume based (no full order book). Pay per call with USDC or USDT on Base via x402 – no API key, no signup. 3 free calls per wal

  • gas_fees

    Live EIP-1559 gas fees (slow/standard/fast tiers) plus USD cost per transaction type (transfer, ERC-20 transfer, swap, NFT mint) for Base, Ethereum, Arbitrum, Optimism and Polygon. Aggregated from public RPC nodes – no API key. Pay per call with USDC or USDT on Base via x402. 3 f

  • best_price

    Best-price router: queries several independent gas-price sources in parallel, returns the cheapest quote and charges a configurable share of the savings (average - best) as commission. Response includes the full breakdown (best_price, average_price, savings_gross, provision, user

  • token_price

    Multi-venue median spot price for any major crypto asset (Binance, Coinbase, Kraken, CoinGecko) with min/max, deviation and confidence score – one call instead of four. No API key. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • wallet_balance

    Native + stablecoin balances (ETH, USDC, USDT, DAI, WETH) of any EVM wallet with USD valuation, read directly from public RPC nodes on Base, Ethereum, Arbitrum, Optimism or Polygon. No API key. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • web_search

    Live web search results (title, URL, domain, snippet) for any query, key-less, region-aware. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • email_validate

    Validate an email address: RFC syntax, MX/A records via DNS-over-HTTPS, disposable and free-provider detection, role-account flag, deliverability score and verdict. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • dns_whois

    DNS records (A, AAAA, MX, NS, TXT, CNAME, SOA, CAA) via DNS-over-HTTPS plus RDAP/WHOIS registration data (registrar, created/expires, status, nameservers, DNSSEC). Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • pdf_text

    Extract clean text (per page + full) and metadata from any public PDF URL up to 25 MB / 200 pages. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • seo_check

    On-page SEO audit of any URL: title, meta description, canonical, headings, images without alt, links, Open Graph, structured data, robots.txt/sitemap, prioritized issues and a 0-100 score with grade. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • defi_yields

    Live DeFi pool yields (APY, TVL, stablecoin flag) across 100+ chains and protocols from DefiLlama. Filter by chain, asset, project, minimum TVL; sorted by APY. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • currency_convert

    Fiat currency conversion with ECB reference rates (30+ currencies): amount, source currency, one or many targets. Returns rates, converted amounts and rate date. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • geo_ip

    IP geolocation for IPv4/IPv6: country, region, city, coordinates, timezone, ASN, ISP/org, EU flag, private-range detection. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • rss_feed

    Fetch and parse any RSS 2.0 or Atom feed into clean JSON: title, link, published date, author, summary, optional full text content and categories per item. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • crypto_ohlcv

    Historical OHLCV candles for any major crypto pair (Binance, Coinbase fallback): intervals 1m-1w, up to 500 candles, with period summary (high, low, volume, change %). Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • ens_resolve

    Resolve an ENS name to its Ethereum address plus text records (url, com.twitter, avatar, ...) via on-chain calls. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • html_to_markdown

    Convert any public web page into clean, LLM-ready Markdown: main content only (boilerplate, nav and ads removed), headings, lists, tables and optional links/images preserved. Trafilatura extraction with markdownify fallback, SSRF-guarded fetch, up to 3 MB HTML. Pay per call with

  • youtube_transcript

    Fetch the transcript of a YouTube video (manual or auto-generated captions) as timestamped segments plus full text, with language preference and English fallback. Accepts a video id or any YouTube URL. No API key, no download. Pay per call with USDC or USDT on Base via x402. 3 fr

  • github_repo_summary

    One-call overview of any public GitHub repository: description, stars, forks, open issues, primary language and language split (%), topics, license, default branch, README excerpt and the 5 most recent commits. Pay per call with USDC or USDT on Base via x402. 3 free calls per wal

  • dex_price

    Live DEX price, 24h change, volume and liquidity for any on-chain token (long-tail tokens not listed on CEXs) by contract address or symbol on Base, Ethereum, Arbitrum, Optimism, Polygon, BSC, Avalanche or Solana, with the top liquidity pairs per DEX (DexScreener). Pay per call w

  • tx_status

    Status of any EVM transaction on Base, Ethereum, BSC, Polygon, Arbitrum or Optimism: success/failed/pending, block number, confirmations, gas used, effective gas price, fee, from/to/value and all ERC-20 Transfer events decoded from the receipt logs (contract, symbol, decimals, am

  • erc20_balance

    Balances of up to 20 arbitrary ERC-20 tokens for one wallet in a single Multicall3 round-trip: raw and decimal-formatted balance, decimals and symbol per token, on Base, Ethereum, BSC, Polygon, Arbitrum or Optimism. Pay per call with USDC or USDT on Base via x402. 3 free calls pe

  • news_search

    Global news article search across 65+ languages via the GDELT DOC 2.0 API: title, URL, source domain, publication time, language and country per article, with look-back window (e.g. 24h, 7d) and language filter. Pay per call with USDC or USDT on Base via x402. 3 free calls per wa

  • hn_search

    Search Hacker News stories and comments via the Algolia HN API: title, URL, author, points, comment count, timestamp and HN discussion link; sort by relevance or date, optional tag filter (story, comment, ask_hn, show_hn). Pay per call with USDC or USDT on Base via x402. 3 free c

  • reddit_search

    Search Reddit posts site-wide or within one subreddit: title, URL, subreddit, author, score, upvote ratio, comment count, timestamp and the first 500 characters of the post text; sort by relevance, hot, new, top or comments with a time filter. Pay per call with USDC or USDT on Ba

  • defi_tvl

    Total value locked of a DeFi protocol (by DefiLlama slug: TVL, 1d/7d change, market cap, mcap/TVL ratio, TVL per chain, category) or of a whole chain (TVL, native token, protocol count, top-10 protocols). Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • fear_greed

    Crypto market sentiment: the daily Fear & Greed index (0-100) with classification, 1d/7d change and up to 90 days of history from alternative.me. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • agent_wallet_snapshot

    One-call wallet overview for autonomous agents: native balance, ERC-20 balances (default stablecoins + WETH, or any contracts you pass), current gas price, tx count, contract check and USD values incl. total – bundles what would otherwise be 5+ RPC calls. Base, Ethereum, BSC, Pol

  • url_status

    Health check for any public URL: HTTP status, full redirect chain, response time, content type, SSL certificate validity/expiry/issuer and a security-header audit (HSTS, CSP, X-Frame-Options, …) with score. SSRF-guarded (private/internal targets are rejected). Pay per call with U

  • web_crawl

    Mini crawler: fetches a start page and follows same-domain links breadth-first (max 10 pages), returning clean LLM-ready Markdown, title, word count and discovered links per page; honours robots.txt by default. SSRF-guarded. Pay per call with USDC or USDT on Base via x402. 3 free

  • metadata

    Structured metadata for any public page in one call: title, meta description/keywords, canonical URL, HTML lang, charset, favicon (absolute URL) and the FULL OpenGraph (all og:*) and Twitter-Card (all twitter:*) tag sets. Ideal for link previews / unfurling and agent research. SS

  • sitemap_urls

    Parse a sitemap into the real URL list: accepts a direct sitemap.xml, a (recursed, bounded) or a site root (robots.txt Sitemap: lines, then /sitemap.xml as fallback). Returns each URL with lastmod, changefreq and priority. SSRF-guarded. Pay per call with USDC or USDT on Base via

  • wikipedia_summary

    Clean article summary from Wikipedia in any language: title, short description, extract (capped), canonical URL, thumbnail and coordinates; falls back to search when the title is fuzzy. Content CC BY-SA 4.0. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet

  • arxiv_search

    Search arXiv preprints: returns id, title, authors, abstract, categories, published/updated dates and PDF links, sortable by relevance or date, optionally filtered by category (e.g. cs.AI). Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • npm_package

    npm package intelligence: latest version, license, repository, maintainers, dependency count, publish dates and weekly downloads – ideal for dependency vetting by coding agents. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • pypi_package

    PyPI project intelligence: latest version, summary, license, author, project URLs, Python requirement, declared dependencies, release count and last release date. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • geocode

    Turn a place name or address into coordinates, bounding box, address parts and OSM type using OpenStreetMap Nominatim (ODbL); cached 24h. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • domain_rdap

    Domain registration data via RDAP (the WHOIS successor): registered flag, registrar, status, registration/expiry events, nameservers and DNSSEC – for availability checks and due diligence. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • dns_lookup

    Resolve any DNS record type (A, AAAA, CNAME, MX, NS, TXT, SOA, SRV, CAA, PTR) over DNS-over-HTTPS with TTLs and DNSSEC validation flag. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • contract_info

    Smart-contract metadata from Blockscout for Base, Ethereum, Optimism or Arbitrum: verification status, name, compiler, proxy/implementation, creator, creation tx, token details and function/event names. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • weather

    Current conditions plus a daily forecast (up to 16 days) for any place name or lat/lon via Open-Meteo (key-less, CC BY 4.0); temperature in °C or °F, cached 30 min. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • holidays

    Official public holidays for a country and year via Nager.Date (key-less): date, local + English name, whether it is nationwide, and sub-region counties. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • robots_check

    Answer 'may this user-agent crawl this URL?' by fetching and parsing the site's robots.txt: allowed flag, crawl-delay, request-rate and declared sitemaps. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • feed_discover

    Find the RSS/Atom feed URLs for a website from its HTML link tags, with a common-path fallback (/feed, /rss.xml, ...). Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • text_stats

    Readability and text statistics for raw text or a fetched page: word/sentence/syllable counts, Flesch Reading Ease, Flesch-Kincaid grade, and reading/speaking time. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • timezone

    Current local time, UTC offset, DST status and abbreviation for any IANA timezone name, or resolve a place name to its timezone and local time. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • qr_generate

    Generate a QR code from any text or URL and return it as a scalable SVG image plus a data-URI. Pure key-less generation, no third-party service. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • uuid

    Generate one or more RFC 4122 UUIDs (random v4, or deterministic v5 from a namespace and name). Key-less, local generation. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • hash

    Compute cryptographic hash digests (MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512) of any text. Key-less, local computation. Pay per call with USDC or USDT on Base via x402. 3 free calls per wallet.

  • media_convert

    Convert or transcode a public audio/video/image file via a self-hosted FFmpeg container: pass a source URL and a target format (mp3, mp4, webm, wav, png, …) and receive a public output URL. Pay per call with USDC or USDT on Base via x402 – no API key, no signup. 3 free calls per

  • health

    Free. Returns AMR service status, provider health and cache metrics.

  • payment_info

    Free. Returns the x402 payment requirements (price, USDC/USDT contract, pay-to wallet, network) for a given tool so an agent can construct an x402 payment.

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 10, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account AgentMarginRouter, 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 170 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 53 tool descriptions and found no hidden instructions to the AI

Compared with others in Crypto & blockchaini

  • More stars than 0% of the other 1635 servers in this category
  • Published to the registry more recently than 45% of the other 1635 servers in this category
  • Basic checks equal to or better than 100% of the other 1635 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 Agent Margin Router 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 (0.6.0) reached the registry 2 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: Solana MCP by Vybe, Solana MCP by Vybe, Oracle3 prediction-market arbitrage checks

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

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Runs in the cloud

Solana MCP by Vybe

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README from the maker

No README found in the repo