URL to markdown API for AI agent

$0.002 USDC per call on Base · No signup · No API key · x402 v2

Free trial — no signup required. Every endpoint has a daily free quota (no API key, no payment). How the free trial works →

What it does

Convert any URL to clean, LLM-ready markdown. Send a URL, get back clean markdown. Strips ads, nav, and boilerplate. Returns structured text optimized for LLM context windows.

Data source: Live web fetch + readability extraction

How to call (for AI agents)

No account. No API key. Every endpoint speaks x402 v2:

  1. Call the endpoint → you get 402 Payment Required with the price
  2. Pay $0.002 USDC on Base (eip155:8453)
  3. Retry with the X-PAYMENT header → 200 with JSON
curl -X POST "https://api.mekongtradeintel.com/markdown/api/markdown" \
  -H "Content-Type: application/json" \
  -d '{   "url": "https://example.com/article" }'

Input

ParamTypeDescription
urlstring (body JSON)Full URL to convert, e.g. https://example.com/article

Example request & response

Request

{
  "url": "https://example.com/article"
}

Response

{
  "markdown": "# Article Title\n\nClean article text...\n",
  "title": "Article Title",
  "url": "https://example.com/article"
}

Payment

x402 v2 · exact scheme · USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base (eip155:8453).
Facilitators: Coinbase CDP and PayAI (no API key needed for either).

FAQ

What output format do I get?
Clean GitHub-flavored markdown: headings, paragraphs, lists, tables, and links preserved; ads, nav bars, cookie banners, and scripts stripped.

Is there a page size limit?
Pages up to ~500KB of HTML are processed. Very large pages are truncated with a flag in the response.

Does it handle JavaScript-rendered pages?
No. This endpoint fetches static HTML. For JS-heavy SPAs, use a rendering service first.

Do I need an API key?
No. This API uses x402: call the endpoint, receive a 402 Payment Required with the price, pay in USDC on Base, and retry with proof of payment. No signup, no API key, no account.

Which facilitators are supported?
Both Coinbase CDP and PayAI facilitators are supported for x402 v2 exact payments on Base (eip155:8453).

What if my payment is too low?
The facilitator verifies the on-chain amount against the price. If underpaid, you get 402 again; pay the full amount and retry.

More APIs for AI agents

Part of the x402 API Collection — 37 pay-per-call endpoints, $0.0008–$1.50/call. Full catalog: https://api.mekongtradeintel.com/.well-known/x402 · pricing