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Public beta: payments use test USDC on Base Sepolia, not real money. Learn more

Your next customer is an agent.

Put the reports, filings, and data your business already has up for sale to AI agents. You set the price per question. An agent pays before it reads a word.

How it works

Buyers get cited passages, never your files. Nothing is used to train models.

Agents pay for answers: an agent's question, its 0.01 USDC payment marked Paid, and the sourced excerpt showing small businesses up 18% quarter over quarter.

A creator uploads market-study.md and opens the processed source. The report carries the Google Docs icon; the opening also shows a PowerPoint deck and a Word document, with their Microsoft icons, as examples of the formats quarry accepts. Only the report is uploaded. The camera moves into the real report: small businesses grew fastest, at 18% quarter over quarter in Q3. The creator types a price of 0.01 USDC per question and publishes. In a chat, a user asks an agent which customer segment grew fastest in Q3; quarry asks the agent for payment, a USDC token travels from the agent to quarry, the payment of 0.01 USDC is confirmed, the seller's running total ticks from 0.00 to 0.01 USDC, and only then the agent answers with the sourced excerpt and cites its source. ChatGPT, Claude and Gemini are named as examples of agents that can call quarry; the recorded buyer was a script. The Analytics card, labeled Sample data, then shows illustrative figures: a revenue chart that draws itself, totals and a history of paid questions from example agents. They illustrate the dashboard and are not the recorded sale, which was one paid query for 0.01 test USDC. The film returns to the original file. The report and the published badge are pixels from the real product recording; the drag, the typing, the chat and the payment steps are recreated from the verified receipt. The report is fictional; the x402 transaction on Base Sepolia is real. Processing waits are edited out.

Agents built on any of these can buy from you.

  • Anthropic
  • Gemini
  • Mistral AI
  • Perplexity
  • LangChain
  • Hugging Face
  • n8n
  • Databricks
  • Snowflake

Your best answers are sitting in folders no one can buy from.

Market studies, filings, playbooks, survey data. Your team spent years on them, and today they earn nothing unless someone emails to ask. Agents can now pay for answers from files like these, one question at a time, and nobody on your side has to pick up the phone.

Built for firms too small for a licensing deal.

  • Market research firms

    “Which European markets grew fastest for heat pumps in 2025?”

    $0.10 a question

  • Consultancies

    “Which onboarding steps cut churn most for B2B software?”

    $0.05 a question

  • Trade associations

    “What is the median pay for a site supervisor in Ohio?”

    $0.25 a question

  • Newsletters and niche publishers

    “Which regional lenders cut mortgage rates this week?”

    $0.02 a question

Example questions and prices.

Four steps to your first sale.

No developer needed. Nothing to install or maintain.

  1. 01

    Upload your files

    Reports, decks, and spreadsheets, as they are. Nothing to reformat.

  2. 02

    quarry reads it

    Every page is indexed, so each answer comes with its file and page.

  3. 03

    Set your price. Publish.

    A cent a question by default. Any price from $0.001, or free.

  4. 04

    Get paid per question

    Each question is paid before it is answered, straight to your wallet.

Built for a buyer that never calls.

Agents don't take meetings, read brochures, or wait for a quote. quarry gives them what they can act on: a clear listing, a price, and an answer with its source attached.

Sales at 3 a.m.

Agents don't keep office hours. A question asked at 3 a.m. is paid for at 3 a.m.

Example feed, not live data.

Every answer shows its source.

Each answer names the file, page or section it came from, so a buyer that has never met you can check it, and come back.

Buyers find you on their own.

Your listing appears in the marketplace and in the directories agents already search. No outreach, no demos.

Explore the marketplace
1

file is enough to list

0

invoices to send or chase

21

file formats accepted, PDF to e-mail

0%

fee today on sales per question

You name the price. Agents pay it up front.

Charge by the question, or set the price to 0 to make it free. Raise the price, lower it, or take the listing down whenever you like.

Per question
Each question is paid before it is answered, in USDC, a digital dollar, straight to your wallet.
You keep every cent today.

Price per question

Questions a month

1,000 questions a month earn you

$100.00

Settled in USDC, within seconds.

Payments run on the open x402 standard.

Common questions.

Something we didn't cover? Email us.

Do I need any technical skills?

No. You upload, check what quarry prepared, set a price, and publish. The technical part is ours.

How do I get paid?

Each question is paid in USDC, a digital dollar worth one US dollar, into a wallet quarry sets up for you when you join. Each sale lands within seconds. Withdraw it to any crypto wallet or exchange whenever you like.

What does quarry cost?

Nothing to list. Today quarry takes no cut of your sales: the agent's payment goes to your wallet, not through ours. If that ever changes, you will hear it from us before it applies to you.

How much of my document does a buyer see?

Only the passages that answer the question asked: five by default, twenty at most, each with the file and page it came from. Buyers never receive the file itself. Before paying, agents searching quarry can see a short preview, up to 200 characters, of your best-matching passage; you can turn previews off at any time.

What happens to the files I upload?

They stay private in your account until you publish. quarry does not train models on your files, and you can take a listing down whenever you like.

Do I need the rights to what I upload?

Yes. List only what you own or are allowed to sell, such as your own reports, research, and data. You keep ownership of everything you upload.

How do agents find my listing?

Your listing appears in the quarry marketplace and in a directory that agents query directly. After its first sale it is also listed in Coinbase's index of services that accept agent payments. You don't have to promote anything.

Is anyone actually buying?

Agent payments are new, and we won't pretend otherwise. The standard behind them, x402, was created by Coinbase in 2025 and is now run by an open foundation under the Linux Foundation, with Cloudflare, AWS, Stripe, Visa, and Mastercard among its members. Listing is free, so the cost of being early is the hour it takes to upload.

What records do I get for my accounting?

Every paid question is logged in your dashboard with its date and amount, and each USDC payment links to its public receipt.

What kinds of files can I use?

PDF, Word, Excel, PowerPoint, OpenDocument, CSV, JSON, Markdown, HTML, EPUB, e-mail, images, and plain text, up to 10 MB per file.

Your first sale is one file away.

Upload a report you already have and set a price. Every question an agent pays to ask it is a sale.

Listing your first file? We'll set it up with you. Email us