Create Word document (.docx)

Turn markdown into a real Word document (.docx) in one call. Send POST /api/docx-create with the required field markdown and pay $0.003 per call over x402 or MPP (there is no free tier). It returns a JSON object with docxBase64, bytes, contentType, filename, blocks and 5 more.

Send "markdown" and an optional "title": headings, paragraphs, bold, italic, strikethrough, inline code, bullet and numbered lists (nested), task lists, tables, code blocks, block quotes, horizontal rules and links come out as native Word formatting. A link is written as a hyperlink; an image is written as its alt text linked to its address and is never fetched. Up to 100,000 characters, 5,000 blocks, tables of 200 rows by 20 columns and 25,000 table cells in all (a short row counts at its header's width), nesting 8 levels of blocks and 16 of inline formatting. The request body may be up to 2 MB. Returns the file as base64 with its size, content type and filename.

Try in playground →

Parameters

Example request

curl -i -X POST https://agent402.tools/api/docx-create \
  -H "Content-Type: application/json" \
  -d '{"title":"Quarterly update","markdown":"## Highlights\n\nRevenue grew **12%** and churn fell to *2.1%*.\n\n- Two new regions\n- Support hours extended\n\n1. Hire two engineers\n2. Ship the billing export\n\n| Region | Units |\n|---|---:|\n| North | 1200 |\n| South | 860 |\n\n```\nnpm run report\n```\n\nDetails at [the status page](https://agent402.tools/status).","filename":"update.docx"}'

Without payment this returns HTTP 402 Payment Required with the exact price for docx-create; any x402 v2 or MPP client pays it and retries.

Example response

{
  "docxBase64": "UEsDBAoAAAAAAG...",
  "bytes": 10520,
  "contentType": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
  "filename": "update.docx",
  "blocks": 10,
  "headings": 1,
  "tables": 1,
  "listItems": 4,
  "codeBlocks": 1,
  "links": 1
}

From an MCP client

catalog.call {
  "slug": "docx-create",
  "params": {
    "title": "Quarterly update",
    "markdown": "## Highlights\n\nRevenue grew **12%** and churn fell to *2.1%*.\n\n- Two new regions\n- Support hours extended\n\n1. Hire two engineers\n2. Ship the billing export\n\n| Region | Units |\n|---|---:|\n| North | 1200 |\n| South | 860 |\n\n```\nnpm run report\n```\n\nDetails at [the status page](https://agent402.tools/status).",
    "filename": "update.docx"
  }
}

The hosted connector at https://agent402.tools/mcp needs a payment for docx-create; the stdio package pays it from a wallet or from an AGENT402_CREDITS_KEY issued earlier. Local install: npx -y [email protected].

Errors and behavior

• markdown is required. An input the tool rejects returns an HTTP 4xx whose body carries error, tool, expected, required and example, so the caller can correct it.
• A paid call that ends in any status of 400 or above is not charged over x402, MPP or a prepaid credits key: settlement runs after the tool and only on a successful response. The exception is a Tempo push credential, a transfer the buyer sent before the call: it settles before the tool runs, so if the tool then fails the payment is recorded as a refund owed to the paying wallet.
• Wallet-only: this tool reaches the network or stored state, so it has no proof-of-work tier. A prepaid card-credits key issued earlier (Authorization: Bearer a402_...) also pays it.
• A GET or HEAD to /api/docx-create returns the same 402 quote, so the price can be read without a body.
• An Idempotency-Key header makes a retried paid call replay the first 200 instead of charging again (an answer larger than 1 MB is not replayed).

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
client.setSpendControls?.({ maxAmountPerPayment: "$0.003" }); // refuse any quote above this tool's price
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/docx-create", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "title": "Quarterly update",
    "markdown": "## Highlights\n\nRevenue grew **12%** and churn fell to *2.1%*.\n\n- Two new regions\n- Support hours extended\n\n1. Hire two engineers\n2. Ship the billing export\n\n| Region | Units |\n|---|---:|\n| North | 1200 |\n| South | 860 |\n\n```\nnpm run report\n```\n\nDetails at [the status page](https://agent402.tools/status).",
    "filename": "update.docx"
  }),
});

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