$1, once. No subscription, no account, and credits never expire.

What $1 buys:

• 200 PDFs: Read a PDF as text
• 500 web pages: Read a web page as clean text or Markdown
• 100 screenshots: Screenshot a web page
• 100 audio clips: Transcribe an audio clip
• 33 website audits: Audit a website: uptime, SEO, security headers

Failed calls are never charged. Try 25 calls free first on most tools; no card needed for those. Prepaid credits, paid by card through Stripe, for agents and people without a USDC wallet. 1 credit = $0.001, so every tool costs the same as with x402.

$1: 1,000 credits
about 100 calls at $0.01$5: 5,000 credits
about 500 calls at $0.01$20: 22,000 credits
about 2,200 calls at $0.01$100: 125,000 credits
about 12,500 calls at $0.01

Use it in your AI app

• Claude or ChatGPT: add a custom connector with the URL https://tools.funwords.eu/mcp/account and sign in with your key.
• Cursor, Claude Code and other MCP clients: connect to https://tools.funwords.eu/mcp with the header Authorization: Bearer adt_…, or use https://tools.funwords.eu/mcp/k/<key> where only a URL fits.
• HTTP: curl -H "Authorization: Bearer adt_…" "https://tools.funwords.eu/eth/balance?address=0x…"
• Fetch-only clients (an agent's URL reader that cannot set headers): https://tools.funwords.eu/eth/balance?address=0x…&api_key=adt_…. A key in a URL can end up in logs; rotate it at POST /credits/rotate if it was shared.

See what you get (free previews)

• Read a PDF as text /pdf/text
• Read a web page as clean text or Markdown /extract
• Screenshot a web page /screenshot
• Transcribe an audio clip /transcribe
• Audit a website: uptime, SEO, security headers /pack/website-audit
• Vet an address before paying it /check/counterparty
• Price any token from its Uniswap pool /price/token
• OFAC sanctions screening /sanctions/check

All tools and prices: catalog.

Agents: buy without a checkout page

Agents with an MPP client and a Link agent wallet can buy a pack themselves, with no checkout page: GET https://tools.funwords.eu/credits/buy/1, /credits/buy/5, /credits/buy/20 or /credits/buy/100 answers 402 with a Stripe card challenge; pay it and the response carries the API key. To top up a key you already have, send it as X-API-Key on the same request.

After paying

Stripe returns you to https://tools.funwords.eu/credits/claim, which shows your API key once the payment is confirmed. Reopening that page shows the same key.

Charging and refunds

The tool's price is taken before it runs and given back if the call fails (any 4xx or 5xx, or an MCP error). Responses carry X-Credits-Charged and X-Credits-Remaining.

Unused credits do not expire. For a refund of unused credits, write to the support address in /openapi.json.

Prefer USDC? Every tool also takes x402 payments: see llms.txt. Terms · Privacy · Support