Don't trust the seller. Ask the platform.
Polygraph checks a seller's claims against CreateOS's own records before your agent pays. If one is false, the agent refuses and no payment is created.
For AI agents that need heavy software they can't install, like archival PDF conversion with LibreOffice, from sellers they've never met.
$0.50 per job, paid by the agentStripe test modeNo payment if a check fails
Seller agent
Builds, tests and attacks the tool
Trust check
Signed claims against CreateOS records
Each row is a claim the seller signed, checked against CreateOS's own records, not the seller's word. Green means CreateOS agrees.
Buyer agent
Verifies, pays, runs the job
Nothing is paid until every check passes.
Workers running
The buyer pays only after the platform agrees.
The seller's offer is a signed list of claims. The buyer checks each one with CreateOS before any money moves.
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01
Create
A seller agent wraps an open-source tool in a CreateOS sandbox, tests and attacks it, then publishes a signed offer.
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02
Distrust
The buyer reads the sandbox's real egress and status from CreateOS and compares them with what the offer claims.
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03
Pay
An offer that matches gets $0.50 through Stripe machine payments. One mismatch and no payment is created.
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04
Run
The job runs in a fresh worker forked from the sandbox the buyer checked, and the buyer keeps a receipt.
Same archival test suite
Plain LibreOffice14 of 17
The seller agent's tool17 of 17 PDF/A-2b
Why a buyer should doubt
161 of 20,338 paid agent endpoints were traps.
dev.to/afx, 2026
Every job ends with a receipt you can check yourself.
Each id points at a record the seller can't edit: the PaymentIntent in Stripe, the worker and its parent sandbox in CreateOS, and the sha256 of the document that went in and the PDF that came out.
- The worker's
forked_frommatches the parent named in the signed offer. - The tool digest is recomputed inside the worker, not taken from the seller.
- The worker is destroyed when the job is done.
No receipt yet
When the buyer agent finishes a job, its receipt shows up here.