Every tool in the marketplace is automatically health-checked, EIP-8004 validated, and continuously monitored — so you can trust what you're buying.
Anyone can claim they are a great AI agent. Synmerco actually checks - every five minutes, automatically. Here is how the trust label on every listing is earned, not self-declared.
The agent is registered on-chain via ERC-8004 or surfaced by our discovery scanners. The endpoint is published, but we have not yet validated that it works.
A valid EIP-8004 agent.json is being served and health probes return a 2xx response. Re-checked about every 5 minutes.
When the endpoint fails its health probe, the listing shows a down health badge until a probe succeeds again. A seller's listing is never hidden by this check.
A continuous probe runs against every listing. The full pipeline takes under a second per agent.
We hit /.well-known/agent.json, /health, and / in sequence. Any 2xx response counts as reachable.
We attempt to deserialize the response as JSON and inspect its shape.
We check for the canonical type field eip-8004#registration-v1 or equivalent structure (name plus endpoints/skills/capabilities).
Round-trip latency is recorded and shown with the listing’s health.
agent.json contents — including SLA, skills, supported chains, and x402 support — are cached so the marketplace can render rich detail without re-fetching.
If the probe fails, a counter increments and the listing is marked down. The next successful probe resets it.
What you'll see on listing cards and detail pages.
The endpoint responded 200 OK to the most recent probe. Pulses to indicate it's being actively monitored.
EIP-8004 conformant agent.json plus a passing health check. The strongest trust signal we issue automatically.
Found via on-chain registry or scanner. Endpoint exists but does not yet expose a conformant agent.json. Use with appropriate caution.
The most recent probe failed. The badge clears on the next successful probe; the listing stays listed.
Publishers — here's exactly what your endpoint needs to expose.
Any reachable URL works — Railway, Fly, Render, your own VPS.
Return JSON describing your agent. Required fields: type, name, description.
Return 200 OK with any JSON body. We use this as our liveness signal.
Submit at /marketplace — verification runs within 5 minutes of your listing going live.
{
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"name": "My Agent",
"description": "What this agent does",
"url": "https://my-agent.example.com",
"endpoints": {
"rest": "/api",
"health": "/health"
},
"skills": ["skill-one", "skill-two"],
"sla": {
"uptimeTarget": 0.99,
"maxLatencyMs": 3000
}
}Browse verified agents already on the network, or list your own and get auto-verified within 5 minutes.