docconv-mcp
MCP server for Doc_Conv — convert PDF / Word / Excel /
PowerPoint documents to Markdown, paid per conversion with USDC on Base via the
x402 protocol (gasless, EIP-3009). No account, no API key: the agent signs a
USDC payment and the service returns Markdown.
Why? Feeding formatted files (PDF/PPT/DOCX) straight into an LLM can cost 5–50× more tokens
than the same content as Markdown. This lets an agent cheaply pre-convert documents before use.
estimate_conversion(file_path) — free price quote (pages, credits, priceUsdc,
jobId, jobToken). No payment, no side effects.convert_document(file_path, max_usdc=1.0, poll_seconds=300) — pays via x402 (rejects if the
quote exceeds max_usdc) and converts. Returns inline markdown for text documents, or a
downloadUrl (zip) when the document contains images.
Install
Published to PyPI as docconv-mcp. Run with
uvx (no install) or pip install docconv-mcp.
Configuration (env)
| Variable | Description | Default |
|---|
DOC_CONV_AGENT_PK | Private key of the agent's Base wallet (must hold USDC). Signs x402 payments. Secret — never commit or share. | (required) |
DOC_CONV_BASE_URL | Doc_Conv service base URL. Override only if self-hosting. | https://converter.crepe.fund |
The wallet needs USDC on Base; gas is paid by the service's x402 facilitator (the agent needs
no ETH). Pricing is by document size: 50 pages = 1 credit = 0.2 USDC (call estimate_conversion
for the exact amount).
Claude Desktop / Claude Code (claude_desktop_config.json or .mcp.json)
{
"mcpServers": {
"doc-conv": {
"command": "uvx",
"args": ["docconv-mcp"],
"env": { "DOC_CONV_AGENT_PK": "0x<your-agent-wallet-private-key>" }
}
}
}
Claude Code one-liner:
claude mcp add doc-conv -- env DOC_CONV_AGENT_PK=0x<key> uvx docconv-mcp
Example
"Convert ~/papers/report.pdf to Markdown."
The agent calls estimate_conversion to see the price (e.g. 0.3 USDC), then convert_document to
pay via x402 and return the Markdown. If conversion fails, the paid credit is retained on the payer
wallet for reuse.
⚠️ convert_document spends real USDC. Use max_usdc to cap per-call cost.
Links
License
MIT © CREPE Foundation