NanoTools

io.github.nanotools-x402Published by GitHub account nanotools-x402v1.0.1Updated Oct 24, 2026

44 tools for AI agents: Trends, SERP, SEO audits, screenshots, weather, FX, whois, RSS.

VerifiedStreamable HTTPWeb executableWeb Search & ScrapingDeveloper ToolsData & Analytics

Overview

AI-generated overview

Remote pay-per-call utility API giving an assistant 40+ tools for hashing, encoding, SEO/SERP research, trends, weather, FX, whois and RSS.

What you can do
Hash, encode and generate values: SHA-256/512, MD5/SHA-1, Base64, URL encoding, UUIDs, random numbers, passwords, slugs, QR codes, lorem ipsum, unit and color conversion, timestamps, cron explanations, regex tests, diffs, HTML entity handling, JWT decoding without verification, text statistics and readability scores, and JSON/YAML/TOML/CSV/Markdown conversion and validation. Look up network and domain data: DNS records, IP geolocation, whois/RDAP registration data, and robots.txt and sitemap audits. Research search and SEO: Google web search, Google and Yandex SERP results, Google Trends timelines, related queries and regional interest, page scraping, SEO meta snapshots, and RSS/Atom feedpar
When to use it
Useful when an assistant needs quick, stateless conversions, hashes, formatting checks or SEO and search-market research without building its own integrations. Best for occasional calls where per-call micropayment is acceptable rather than high-volume or offline work.
Requirements
A remote HTTP endpoint; no signup or API keys. Every call is paid in USDC on Base mainnet through the x402 protocol, so the client needs an x402-capable wallet with funds and network access. Prices range from about $0.001 to $0.03 per call.
Before you install
Each call spends real money from a crypto wallet on Base mainnet, with the highest prices on Trends and SERP tools. Text, URLs, tokens and data you send go to a third-party server. JWT decoding does not verify signatures, so decoded tokens are unverified. Some tools fetch external pages and feeds on your behalf.

Installation

In SourceWeft

  1. Open NanoTools in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.nanotools-x402%2Fnanotools/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "nanotools": {
      "type": "http",
      "url": "https://nano.vodka-24.com/mcp"
    }
  }
}

README

NanoTools — x402 pay-per-call API for AI agents

44 tools. No signup. No API keys. Pure x402 micropayments on Base mainnet.

Agents pay per call with USDC ($0.001–$0.03) via the x402 protocol — the HTTP 402 flow is fully automatic with any x402-capable client/wallet.

🔗 Discovery endpoints

WhatURL
Tool catalog for LLMshttps://nano.stacknodehost.com/llms.txt
OpenAPI 3 spec (x402 prices in extensions)https://nano.stacknodehost.com/openapi.json
x402 discoveryhttps://nano.stacknodehost.com/.well-known/x402
A2A agent cardhttps://nano.stacknodehost.com/.well-known/agent.json
Healthhttps://nano.stacknodehost.com/health

🧰 Tool groups

  • Trends & SERP — Google Trends (timeline, related queries, regions), Google SERP, Yandex SERP, wordstat regions
  • SEO — meta audit, robots.txt audit, readability audit, IndexNow submit
  • Chromium tools — page screenshot, page PDF, OG-image generation (real headless Chromium)
  • Data — weather (open-meteo), FX rates (ECB), whois (RDAP), RSS parse
  • Utilities — QR, JWT, cron parse, hash, uuid, base64, url encode, slug, datetime, ... ($0.001 tier)

💳 Payment

x402 ExactEvmScheme on Base (eip155:8453), payTo 0x4F568Bf0cE8537CBE7a0DAF1A43C955e0a648db9, facilitator https://facilitator.openx402.ai. Prices are declared per-tool in the discovery endpoints (x-price-usd extension in OpenAPI).

🚀 Quick start with any x402 client

Point your agent at any tool URL from llms.txt — the first call returns 402 with payment requirements, the client signs USDC, retries with X-PAYMENT header and gets the result.

Source: README.md at commit b9e54c2

Tools

45

api_sha256

Api Sha256

SHA-256 and SHA-512 digests for any text (?text=). Deterministic, local, stable JSON. [HTTP x402 price: $0.001]

Parametersparams

api_base64

Api Base64

Base64 encode or decode. ?op=enc|dec&data=... Tolerant to missing padding. [HTTP x402 price: $0.001]

Parametersparams

api_hash_multi

Api Hash Multi

MD5, SHA-1, SHA-256, SHA-512 in one call. ?text=... [HTTP x402 price: $0.001]

Parametersparams

api_random

Api Random

Cryptographically secure random number. ?min=&max= (ints, default 0..100). [HTTP x402 price: $0.001]

Parametersparams

api_uuid

Api Uuid

Generate UUIDv4 (and optional count ?n= up to 100). [HTTP x402 price: $0.001]

Parametersparams

api_slug

Api Slug

URL slug from any text. ?text=Hello%20World -> hello-world [HTTP x402 price: $0.001]

Parametersparams

api_password

Api Password

Secure random password. ?len=16&symbols=1 [HTTP x402 price: $0.001]

Parametersparams

api_json

Api Json

Validate + pretty-print JSON. ?data={...} (urlencoded). [HTTP x402 price: $0.001]

Parametersparams

api_text_stats

Api Text Stats

Text statistics: words, chars, sentences, reading time. ?text=... [HTTP x402 price: $0.001]

Parametersparams

api_csv2json

Api Csv2Json

Convert CSV to JSON array. ?data=<csv urlencoded>&delim=, [HTTP x402 price: $0.001]

Parametersparams

api_urlcode

Api Urlcode

URL encode/decode. ?op=enc|dec&data=... [HTTP x402 price: $0.001]

Parametersparams

api_timestamp

Api Timestamp

Unix timestamp <-> ISO8601 both ways. ?ts=1690000000 or ?iso=2026-01-01T00:00:00Z [HTTP x402 price: $0.001]

Parametersparams

api_scrape

Api Scrape

Fetch a web page and return clean readable text. ?url=https://example.com [HTTP x402 price: $0.003]

Parametersparams

api_dns

Api Dns

DNS lookup: A, AAAA, MX, TXT, NS, CNAME records for a domain. ?name=example.com&type=A [HTTP x402 price: $0.001]

Parametersparams

api_qr

Api Qr

QR code generator. ?data=<text>&size=256 -> PNG as base64 in JSON. [HTTP x402 price: $0.001]

Parametersparams

api_jwt_decode

Api Jwt Decode

Decode a JWT header and payload WITHOUT signature verification. ?token=<jwt> [HTTP x402 price: $0.001]

Parametersparams

api_regex

Api Regex

Test a regex against text: matches with groups and positions. ?pattern=<re>&text=<text>&flags=i [HTTP x402 price: $0.001]

Parametersparams

api_cron_parse

Api Cron Parse

Explain a cron expression: next 3 run times in UTC. ?expr=*/5 * * * * [HTTP x402 price: $0.001]

Parametersparams

api_yaml2json

Api Yaml2Json

Convert YAML to JSON. ?data=<yaml urlencoded> [HTTP x402 price: $0.001]

Parametersparams

api_toml2json

Api Toml2Json

Convert TOML to JSON. ?data=<toml urlencoded> [HTTP x402 price: $0.001]

Parametersparams

api_markdown2html

Api Markdown2Html

Convert Markdown to HTML (tables, fenced code). ?text=<markdown urlencoded> [HTTP x402 price: $0.001]

Parametersparams

api_diff

Api Diff

Unified diff of two texts with changed line count. ?a=<text>&b=<text> [HTTP x402 price: $0.001]

Parametersparams

api_html_entities

Api Html Entities

Escape or unescape HTML entities. ?op=enc|dec&data=<text> [HTTP x402 price: $0.001]

Parametersparams

api_unit_convert

Api Unit Convert

Convert units: length, weight, volume, data size, temperature. ?value=100&from=cm&to=inch [HTTP x402 price: $0.001]

Parametersparams

api_color_convert

Api Color Convert

Convert colors between hex, rgb, hsl. ?color=#ff0000 or rgb(255,0,0) [HTTP x402 price: $0.001]

Parametersparams

api_lorem

Api Lorem

Lorem ipsum placeholder generator. ?paras=3 or ?words=50 [HTTP x402 price: $0.001]

Parametersparams

api_weather

Api Weather

Current weather + 7-day forecast by city name or lat/lon (open-meteo, no key needed). ?city=Moscow [HTTP x402 price: $0.002]

Parametersparams

api_fx_rates

Api Fx Rates

ECB reference currency exchange rates. ?base=USD&symbols=EUR,GBP or ?date=2026-01-15 [HTTP x402 price: $0.002]

Parametersparams

api_whois

Api Whois

Domain registration data via RDAP: registrar, created/updated/expires, status, nameservers. ?domain=example.com [HTTP x402 price: $0.003]

Parametersparams

api_rss

Api Rss

Parse any RSS or Atom feed into clean JSON items. ?url=<feed>&limit=10 [HTTP x402 price: $0.002]

Parametersparams

api_ip_info

Api Ip Info

IP geolocation and network info: country, city, ASN/org, timezone. ?ip=1.2.3.4 [HTTP x402 price: $0.002]

Parametersparams

api_seo_meta

Api Seo Meta

SEO snapshot of a page: title, description, OG/Twitter meta, h1s, h2 count, canonical, robots meta, lang, word count. ?url= [HTTP x402 price: $0.005]

Parametersparams

api_robots_audit

Api Robots Audit

Audit robots.txt + sitemap.xml of a site: rules, sitemaps listed, sitemap reachable, URL counts. ?url=<site root> [HTTP x402 price: $0.005]

Parametersparams

api_serp_google

Api Serp Google

Google SERP: organic results with position, ads count, related searches. ?q=&num=5&gl=us [HTTP x402 price: $0.01]

Parametersparams

api_serp_yandex

Api Serp Yandex

Yandex SERP for RU-market keyword research (region by ?lr=). ?q=&lr=213 [HTTP x402 price: $0.01]

Parametersparams

api_readability

Api Readability

Text readability: Flesch score, level, avg sentence length, keyword density, top words. ?text=<text>&keyword= [HTTP x402 price: $0.003]

Parametersparams

api_screenshot

Api Screenshot

Real browser screenshot of any page as PNG (base64), JS rendered. ?url=&width=1280&height=800&full=0|1 [HTTP x402 price: $0.02]

Parametersparams

api_pdf

Api Pdf

Render any page to PDF (A4, print background) via headless Chrome. ?url= [HTTP x402 price: $0.02]

Parametersparams

api_render_text

Api Render Text

Render a JS-heavy page in a real browser and return the visible text. ?url= [HTTP x402 price: $0.015]

Parametersparams

api_og_image

Api Og Image

Generate an Open Graph image 1200x630 from title/subtitle/theme. ?title=&subtitle=&theme=indigo|dark|green|red|blue [HTTP x402 price: $0.015]

Parametersparams

api_seo_report

Api Seo Report

Full SEO audit report of a domain: health score 0-100, prioritized issues list, title/description/H1/canonical, robots.txt review, word count. Returns ready markdown report. ?url=https://example.com [HTTP x402 price: $0.99]

Parametersparams

Version history

1
  1. v1.0.1LatestSep 16, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.