Your AI agent is about to spend money at a merchant it has never seen before. Before it transacts, it needs to know: is this brand who they claim to be?
RegisteredBrands.AI verifies merchants against 7 independent sources — DNS, SSL, GLEIF, USPTO, SAM.gov, business registries, and web presence — and returns a cryptographically signed trust score. One POST request. Instant answer.
Free tier — no credit card required
1,000 verifications/month. Start building now.
{
"verified": true,
"capsuleId": "cap_7xK9mN2p",
"brand": {
"name": "Nike, Inc.",
"domain": "nike.com",
"trustScore": 94,
"tier": "enterprise"
},
"checks": [
{
"source": "DNS",
"status": "pass",
"detail": "Domain ownership confirmed via TXT record"
},
{
"source": "SSL",
"status": "pass",
"detail": "EV certificate issued by DigiCert"
},
{
"source": "GLEIF",
"status": "pass",
"detail": "LEI 5493003RDVHG8ODQKF21 active"
},
{
"source": "USPTO",
"status": "pass",
"detail": "Trademark Reg. #1243850 active"
},
{
"source": "SAM.gov",
"status": "pass",
"detail": "CAGE code verified"
},
{
"source": "Web Presence",
"status": "pass",
"detail": "Consistent brand signals across 12 properties"
},
{
"source": "Business Registry",
"status": "pass",
"detail": "Oregon SOS — active corporation"
}
],
"signature": {
"algorithm": "Ed25519",
"publicKey": "rb_pk_4xN7mK9...",
"sig": "0x3a9f8c2e1b7d..."
},
"timestamp": "2026-03-13T02:41:00Z"
}Enter any domain. Get a real trust score from our live API. No sign-up required.
Your agent discovers brands, then verifies them. Everything else is optional.
Query the public registry to find verified brands. No API key needed. Think of it as the phone book — your agent looks up whether a brand exists before doing anything else.
Public endpoint — no authentication required.
curl https://registeredbrands.ai/.well-known/brand-capsule.jsonAsk us about a specific brand. We check 7 independent sources and return a trust score with cryptographic proof. Your agent gets a definitive answer: verified or not verified.
curl -X POST https://registeredbrands.ai/api/v1/verify/capsule \
-H "Content-Type: application/json" \
-d '{"domain": "nike.com"}'{
"verified": true,
"brand": {
"name": "Nike, Inc.",
"domain": "nike.com",
"trustScore": 94,
"tier": "enterprise"
},
"checks": [
{ "source": "DNS", "status": "pass" },
{ "source": "SSL", "status": "pass" },
{ "source": "GLEIF", "status": "pass" },
{ "source": "USPTO", "status": "pass" },
{ "source": "SAM.gov", "status": "pass" },
{ "source": "Web Presence", "status": "pass" },
{ "source": "Business Registry", "status": "pass" }
],
"signature": {
"algorithm": "Ed25519",
"sig": "0x3a9f8c2e1b7d..."
}
}Before your agent buys from a merchant, verify the merchant is real. One API call before every transaction. Protect your users from impersonation.
"Is this the real Nike store, or a lookalike?"
Autonomous purchasing systems need to verify suppliers before committing funds. Check trust scores, business registrations, and domain ownership programmatically.
"Is this supplier's GLEIF registration active?"
If you're building an agent framework or marketplace, embed trust verification as a native capability. Give every agent on your platform the ability to check brands.
"Add brand verification to your agent toolkit."
The essentials are public. Sign in to see the full API surface including protocol and subscription endpoints.
| Method | Endpoint | Description | Auth |
|---|---|---|---|
| GET | /.well-known/brand-capsule.json | Registry of all verified capsules | Public |
| GET | /.well-known/agent.json | A2A agent card for discovery | Public |
| GET | /.well-known/agent-payment.json | Payment manifest | Public |
| GET | /pricing.json | Machine-readable pricing | Public |
| POST | /api/v1/verify/capsule | Verify a Brand Capsule | Public |
| POST | /api/v1/verify/receipt | Verify a transaction receipt | Public |
Compatible With
MCP
Anthropic
A2A
UCP
Universal Commerce
TAP
Visa
Ed25519
Cryptographic Signing
GLEIF
Legal Entity ID
Everything you need to build on the Trust Rail.
Full documentation for every endpoint — request parameters, response schemas, error codes, and authentication.
Complete JSON schemas for Brand Capsules, Entitlement Tokens, Transaction Receipts, and all API types.
Pre-built integrations for popular platforms, frameworks, and AI agent toolchains.
Model Context Protocol server for AI agents. Connect directly from Claude, GPT, or any MCP-compatible agent.
Free tier includes 1,000 verifications per month. No credit card. No trial period.
Start verifying brands in under 5 minutes.