Verification API for Agentic Commerce

The Mintall Verification API lets AI agents and third-party verifiers check a product's certificate: its signed proof, image provenance, and authorized selling domain. Public endpoints, no account needed to read certificates.

Read the docs

Public verification protocolAPI online

01
Product page
Read the asset id and the domain the product is listed on.
image_id · domain
02
MC4P certificate
Fetch the JSON-LD certificate. No account or key needed.
GET /certificate
03
JWT proof
Verify the signature offline against the published JWKS.
RS256 · JWKS
04
Domain authorization
Check the observed domain against the authorized list.
authorizedDomains
05
Content credentials
Read the C2PA manifest the certificate binds the image to.
contentCredentials
06
Trust result
Or let the server run the checks and return the result.
POST /verify

Public verification protocolAPI online

01
Product page
Read the asset id and the domain the product is listed on.
image_id · domain
02
MC4P certificate
Fetch the JSON-LD certificate. No account or key needed.
GET /certificate
03
JWT proof
Verify the signature offline against the published JWKS.
RS256 · JWKS
04
Domain authorization
Check the observed domain against the authorized list.
authorizedDomains
05
Content credentials
Read the C2PA manifest the certificate binds the image to.
contentCredentials
06
Trust result
Or let the server run the checks and return the result.
POST /verify

What the API does

A small set of public endpoints for verifying that a product is authentic, unmodified, and sold where it is meant to be.

Fetch certificates

Request a product's MC4P certificate as JSON-LD: identity, authorized domains, provenance, and proof.

Verify proofs offline

Validate the JWT signature against the public JWKS endpoint, with no round-trip to Mintall required.

Check selling context

Confirm the domain or context where a product is listed is authorized for that certificate.

Inspect content credentials

Read the C2PA manifest and registry anchor the certificate references to confirm image provenance.

No key for public reads

Read public certificates without an account or API key. Authentication is only for write operations.

Built for agents

A stable contract that MCP tools and shopping agents can call the same way for every Mintall-certified product.

Start with the docs

Everything an agent builder or third-party verifier needs to fetch and verify Mintall certificates.

Getting started

Fetch an MC4P certificate and verify it, in two calls.

Get started

API reference

Endpoints for fetching certificates, discovering JWKS keys, and verifying domain context.

Browse the reference

Verify MCP

Give an agent a verification tool it can call directly. One URL.

Connect your client

Start verifying products

Fetch a certificate, verify the proof, and check the selling context with a few requests. No account needed to read public certificates.

API reference Talk to us

Using Claude, Cursor, or another MCP client? Verify MCP wraps this API in a ready-made tool interface.