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AgentGate Check-Agent
x402
AgentGate Check-Agent is a paid API for AI agents from api.youraitools.co, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-27).
Verifies a Concordium CIS-2 badge token or account address to confirm it belongs to an active, verified AI agent with a matching agent card
Price / call$0.005
Success—
StatusUnknown
How this service works
AI agent identity verification API. Checks whether an AI agent is registered in the Concordium Agent Registry (CIS-8004), Active, and Verified by Concordium (Agent Card hash matches on-chain). Suited to agent marketplaces and payment flows that need to confirm a counterparty agent identity before trusting or paying it. Input: badge (CIS-2 token address) or Concordium account.
Output
Returns a JSON object confirming whether the badge was found, whether it's active and verified, the owner's Concordium address, the token ID, the agent card URI, whether the card hash matches on-chain data, and any issues detected — plus the network and source of the check.
Example use cases
Pre-payment agent identity check
“Before I pay this agent, can you verify that the Concordium badge Mf22soLh1NuZYFgBK8iSs is active and that its agent card hash actually matches what's on-chain?”
Validate agent badge before onboarding
“I'm onboarding a new AI agent with badge token 4DDvjwdcLmTy1Ar9FCKKPMiABrS261TvyXJGr4n4ypuuogXeFF on Concordium — can you confirm it's a verified, active agent with no issues?”
Check testnet agent registration
“Can you look up Concordium badge address Mf22soLh1NuZYFgBK8iSs on testnet and tell me if it's registered, who owns it, and what agent URI is linked to it?”
Technical details
Endpoint
GEThttps://api.youraitools.co/agentgate/v1/check-agent?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to cryptographically verify the identity of a Concordium-based AI agent before interacting with or paying it — specifically when you have a CIS-2 badge token address or account address and want to confirm the agent is active, verified, and that its published agent card matches on-chain records. Prefer this over generic blockchain lookups when the entity in question is an AI agent registered on Concordium's badge system.
Side effects
- Badge ID not found on the specified network — found: false
- Invalid or malformed CIS-2 token address or CAIP-19 format
- Network mismatch (badge exists on mainnet but queried on testnet)
- Agent card hash does not match on-chain data — cardHashMatches: false
- Badge is found but inactive — active: false
- Missing required 'id' query parameter returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "Mf22soLh1NuZYFgBK8iSs",
"kind": "badge",
"mock": false,
"found": true,
"owner": "4DDvjwdcLmTy1Ar9FCKKPMiABrS261TvyXJGr4n4ypuuogXeFF",
"active": true,
"issues": [],
"source": "concordium-badge-check",
"network": "mainnet",
"tokenId": 484,
"agentUri": "https://tippingservice.co.uk/agents/vigilonmoltbook/.well-known/agent-card.json",
"verified": true,
"agentWallet": null,
"tokenAddress": "Mf22soLh1NuZYFgBK8iSs",
"cardHashMatches": true
}
}Tags
x402
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