# Doc_Conv (converter.crepe.fund)

> Convert PDF / Word / Excel / PowerPoint documents to Markdown. AI agents pay per
> conversion with USDC on Base via the x402 protocol — no account, no API key, no signup.
> Just pay and convert. Output is Markdown (a downloadable .zip with images when the
> document contains figures).

## For AI agents (x402 payment)

Pricing: 50 pages = 1 credit = 0.2 USDC. Chain: Base mainnet (CAIP-2 eip155:8453).
USDC contract: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 (6 decimals).
Payment is gasless (EIP-3009 transferWithAuthorization): the agent only signs; the
service pays the on-chain gas. So an agent needs USDC but no ETH.

Flow (all under https://converter.crepe.fund):
1. POST /api/v1/agent/estimate  (multipart/form-data, field "file")
   → 200 { jobId, jobToken, fileType, pages, credits, price: { usdc, atomic, asset, network, payTo } }
   Free — no payment, just a quote.
2. POST /api/v1/agent/jobs/{jobId}/convert   (header: X-Job-Token: <jobToken>)
   → First call returns HTTP 402 with payment requirements (PAYMENT-REQUIRED header).
     Sign an EIP-3009 USDC authorization and retry with the PAYMENT-SIGNATURE header.
   → 202 { jobId, status: "queued", txHash } when accepted.
3. GET /api/v1/agent/jobs/{jobId}   (header: X-Job-Token: <jobToken>)
   → { status, downloadUrl, downloadFormat }. Poll until status = "done" (or "failed").
     downloadFormat = "md" (markdown) or "zip" (markdown + images).

Supported input: pdf, docx, xlsx, pptx. Max upload: 50 MB.
This is a standard x402 (v2) service; any x402-capable client works.

## MCP

An MCP server exposes this as agent tools:
- estimate_conversion(file_path) — get the price (no payment)
- convert_document(file_path, max_usdc) — pay via x402 and convert
Works with Claude and other MCP clients. See the project repository for setup.

## For humans

Visit https://converter.crepe.fund to sign in (Privy) and pay with CRE or USDT.

## About

Operated by the CREPE Foundation — https://crepe.fund