Markdown to PDF conversion, for AI agents

Agents speak Markdown. Humans prefer PDF. We bridge the gap for the final stage of your agentic workflow. No sign-ups, no credit cards — just sats (Lightning / L402) or USDC (Base / X402) for bytes.

What is this?

Agents love Markdown — humans don’t

Markdown is easy for AI agents to work with, but not so great for humans. We help agents transform their output into beautiful PDFs for human consumption.

Built for agents, not end-users

L402, X402 and MCP native API - pay per call with sats on Lightning or USDC on Base, no OAuth, API keys or rate-limits. Send markdown, get back a PDF. No subscriptions or hidden tiers.

Example output

Here’s the output of a markdown file converted to PDF format, showing cover page, table of contents and table support. Our engine is powered by LaTeX rather than HTML to PDF conversion as many other libraries and services use, which results in a much higher quality, print-ready output.

Below are a few downloadable examples you can try out:

Markdown syntax guide

A document that shows the markdown supported.

Research report

An example research report with comparison tables.

Book

A book with a cover page, table of contents and chapters.

Pricing

5 sats per PDF

Pay in Bitcoin on the Lightning Network via L402. Roughly $0.01 per PDF — check here for the latest exchange rate.

$0.01 USDC per PDF

Pay in USDC on Base via X402. Dollar-denominated, on-chain settlement in under a second.

Quick start

Python
Typescript
MCP
X402 (Python)

pip install markdown2pdf-python

from markdown2pdf import MarkdownPDF

def pay(offer):
    print("⚡ Lightning payment required")
    print(f"Amount: {offer['amount']} {offer['currency']}")
    print(f"Description: {offer['description']}")
    print(f"Invoice: {offer['payment_request']}")
    input("Press Enter once paid...")

client = MarkdownPDF(on_payment_request=pay)
path = client.convert(markdown="# Hello from Python", title="My document title", download_path="output.pdf")
print("Saved PDF to:", path)

npm install @serendipityai/markdown2pdf-typescript

import { convertMarkdownToPdf } from "@serendipityai/markdown2pdf-typescript";
import type { OfferDetails } from "@serendipityai/markdown2pdf-typescript";

async function pay(offer: OfferDetails) {
  console.log("⚡ Lightning payment required");
  console.log(`Amount: ${offer.amount} ${offer.currency}`);
  console.log(`Description: ${offer.description}`);
  console.log(`Invoice: ${offer.payment_request}`);
  await new Promise<void>(resolve => { process.stdin.once("data", () => { resolve(); }); });
}

async function main() {
  const result = await convertMarkdownToPdf("# Hello from Typescript", {
    title: "My document title",
    downloadPath: "output.pdf",
    onPaymentRequest: pay
  });
  console.log("Saved PDF to:", result);
}

main().catch(console.error); 

You can drop the below configuration in to your Claude MCP config to add PDF conversion to your chat workflow.

"mcpServers": {
  "markdown2pdf": {
    "command":"npx",
    "args": ["@serendipityai/markdown2pdf-mcp"],
    "cwd": "~"
  }
}

pip install "x402[httpx]" eth-account

import os, httpx
from x402.http.clients.httpx import x402HttpxClient
from x402.mechanisms.evm import EthAccountSigner

signer = EthAccountSigner(private_key=os.environ["EVM_SIGNER_KEY"])  # Base wallet
with x402HttpxClient(signer=signer) as client:
    resp = client.post(
        "https://api.markdown2pdf.ai/markdown",
        json={
            "data": {"text_body": "# Hello from X402"},
            "options": {"document_name": "hello.pdf"},
        },
    )
    resp.raise_for_status()
    print("Paid tx proof:", resp.headers.get("X-Payment-Response"))
    print("Poll:", resp.json()["path"])

The x402HttpxClient handles the 402 → sign → retry loop for you. See the X402 page for details and manual-flow variants.

If your agent needs help making payments, try Albyhub, lnbits or fewsats.com for Lightning; for X402, use the Coinbase CDP SDK or any EVM wallet that holds USDC on Base. We provide examples of how to use these services to automatically pay in our SDKs.

Welcome, agents!

SDKs

REST API

Markdown to PDF conversion, for AI agents

Agents speak Markdown. Humans prefer PDF. We bridge the gap for the final stage of your agentic workflow. No sign-ups, no credit cards — just sats (Lightning / L402) or USDC (Base / X402) for bytes.

What is this?

Agents love Markdown — humans don’t

Built for agents, not end-users

Example output

Markdown syntax guide

Research report

Book

Pricing

5 sats per PDF

$0.01 USDC per PDF

Quick start

Welcome, agents!

SDKs

REST API

​Agents speak Markdown. Humans prefer PDF. We bridge the gap for the final stage of your agentic workflow. No sign-ups, no credit cards — just sats (Lightning / L402) or USDC (Base / X402) for bytes.

​What is this?

Agents love Markdown — humans don’t

Built for agents, not end-users

​Example output

Markdown syntax guide

Research report

Book

​Pricing

5 sats per PDF

$0.01 USDC per PDF

​Quick start

Agents speak Markdown. Humans prefer PDF. We bridge the gap for the final stage of your agentic workflow. No sign-ups, no credit cards — just sats (Lightning / L402) or USDC (Base / X402) for bytes.

What is this?

Example output

Pricing

Quick start