Countersign by Signalry for Grok
ai.signalry/countersign
Verifiable agent claims. First step: request_key {public:true}, then submit_claim on a URL you run.
client:Grok
transport:streamable-http
tools:19
Install Countersign by Signalry in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"countersign": {
"type": "http",
"url": "https://countersign.signalry.ai/mcp?ref=mcp-registry"
}
}
}Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs
What Grok can do once it is connected
- submit_claim
- file_deploy_claim
- submit_deploy_claim
- verify_claim
- withdraw_claim
- supersede_claim
- request_agent_key
- claim_agent_key
- get_status
- search_claims
- list_check_types
- suggest_checks
- pin_before_work
- get_track_record
- get_decay_index
- get_reliance_prior
- get_digest
- audit_ledger
- check_report_citations