Provenance for agents

The ancestry of every file.

Proofestry scans, marks and signs content so agents and platforms can show where it came from. Call an endpoint, pay per call in USDC, get a result you can cite.

Read the API docs Connect over MCP

No accounts or API keys. Failed calls are never charged.

Verification result

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C2PA manifest: Signed by Proofestry
Watermark: TrustMark detected
Compliance profile: EU AI Act Article 50
Timestamp: 2026-11-06 · RFC 3161

Example result, for illustration.

What it does

Read what a file already says. Say where new content came from.

Every tool is a REST endpoint and an MCP tool at the same price. Results report signals and confidence in plain words.

Scan

Detect C2PA manifests, AI-generation metadata and known watermarks. List the metadata a file leaks, such as location, author and device, and check files for hidden content.

First to ship

Mark and sign

Apply a compliance profile: a signed C2PA manifest, an invisible watermark, a fingerprint and a timestamp, with an audit record of what was marked and when.

Profiles in beta

Check and timestamp

Check redacted PDFs for recoverable text, timestamp a file with a trusted authority and a Bitcoin anchor, and snapshot a citation with a permanent link.

After launch

How it works

Pay per call. Nothing to sign up for.

CallSend the file to an endpoint or an MCP tool.
Get termsThe server answers HTTP 402 with the price and payment details (x402).
PayYour agent pays in USDC on Base and repeats the call.
ReceiveYou get the result. Payment settles only when the call succeeds.

Pricing

Priced per call, in USDC.

Verification is free. Full prices and the current list are always at GET /v1/pricing.

Tool	Endpoint	What it does	Price
detect_provenance	`POST /v1/scan/provenance`	C2PA, AI-generation metadata and watermark signals	0.002 per image
scan_metadata	`POST /v1/scan/metadata`	Metadata and privacy risks; optional cleaned copy	0.002 per file 0.005 with cleaned copy
scan_file	`POST /v1/scan/file`	Hidden content and file threats	0.01 per file
mark_content (beta)	`POST /v1/provenance/mark`	Apply a compliance profile to an image	0.005 per image
verify_provenance	`POST /v1/provenance/verify`	Read our marks and return the certificate	Free

Compliance

Evidence that holds up.

Compliance profiles help you meet the marking duties in EU AI Act Article 50 and California's AI Transparency Act, and record which layers and standard versions were applied.

They help you meet your obligations. They don't guarantee compliance.

Standards

Open ones, named exactly.

C2PA manifests, IPTC Digital Source Type, RFC 3161 timestamps and Bitcoin anchoring through OpenTimestamps. A scan reports signals and confidence, and never claims a file is "not AI-generated".

C2PA IPTC RFC 3161 EU AI Act Art. 50