Free CGBB membership and a signed trust.json for brands; verify any brand's CGBB record.
Connect Remote server
claude mcp add --transport http cgbb https://api.cgbb.org/mcp
{
"mcpServers": {
"cgbb": {
"url": "https://api.cgbb.org/mcp"
}
}
}
{
"servers": {
"cgbb": {
"type": "http",
"url": "https://api.cgbb.org/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://api.cgbb.org/mcp
Tools 6 found in our last check
about_cgbbWhat CGBB is, what the free CGBB Website Trust Credential (trust.json) contains, how it supports a brand’s GEO and AI trust, and how an AI agent can apply for a brand.
apply_for_membershipApply for free CGBB membership on behalf of a brand. Returns an application_id, a domain-verification token and next steps. A real person at the brand (contact_email) must confirm by email; the CGBB Secretariat then reviews it. Only apply for a brand the user represents, using t…
check_domain_verificationAfter publishing the token (DNS TXT record or /.well-known/cgbb-verification.txt), check it. Returns the updated application status.
get_application_statusStatus and next steps for an application.
verify_brandCheck the live CGBB record for a domain, and whether a genuine trust.json is published on that website.
get_trust_fileGet the signed CGBB Website Trust Credential (trust.json) for an approved domain, ready to publish at https://<domain>/.well-known/trust.json.
Details
| Endpoint | https://api.cgbb.org/mcp (Streamable HTTP) |
| First published | 2 Nov 2026 |
| Last updated | 2 Nov 2026 |
| Registry name | org.cgbb/cgbb |
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