12 operations
Merge, watermark, encrypt, extract, rotate, reverse, and more — at parity with pdfblocks.com.
PDF As You Go
Pay-as-you-go PDF processing for AI agents. An MCP server and HTTP API with no accounts and no API keys — each operation costs $0.05, paid per call over x402 in USDC.
What it is
Section titled “What it is”PDF As You Go is a pay-as-you-go PDF processing service built for autonomous agents. The same operations are exposed two ways — as a Model Context Protocol (MCP) server and as a plain HTTP API — over one processing engine and one payment layer.
There is no sign-up, no API key, and no subscription. Your agent calls a tool, the server replies “that costs $0.05,” the agent’s wallet pays in USDC over the x402 protocol, and the operation runs. Payment authorization is the authentication.
$0.05 per operation
One flat price, regardless of file size or page count. No tiers, no minimums.
No accounts, no keys
Nothing to provision, store, leak, or rotate. The x402 payment is the auth.
Agent-native files
Pass documents by URL or upload; get a short-lived download URL back. No base64 through your model’s context window.
Start here
Section titled “Start here”How it worksThe request → 402 → pay → deliver flow, end to end.
Quickstart: MCP serverConnect an MCP client and make your first paid tool call.
Quickstart: HTTP APIMake a request, handle the 402, pay, and download the result.
x402 paymentsHow per-request stablecoin payment works under the hood.
All operations
Section titled “All operations”Twelve operations, each available as an MCP tool and an HTTP endpoint, each priced at a flat $0.05.
Combine & organize
Section titled “Combine & organize”Merge documentsCombine multiple PDFs into one, in order.
Extract pagesKeep only the pages you select.
Remove pagesDelete selected pages.
Rotate pagesRotate pages 90, 180, or 270°.
Reverse pagesFlip the page order.
Watermarks
Section titled “Watermarks”Add text watermarkOverlay customizable text like CONFIDENTIAL.
Add image watermarkOverlay a PNG or JPEG image.
Security & protection
Section titled “Security & protection”Add passwordEncrypt with an open password.
Remove passwordDecrypt a known-password PDF.
Add restrictionsPrevent copy, print, or modify.
Remove restrictionsClear all usage restrictions.
Remove signaturesStrip digital signatures.
See the full operations reference for parameters, examples, and responses.