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DDG ERC-8004 Agent Identity Screener
x402
DDG ERC-8004 Agent Identity Screener is a paid API for AI agents from agents.daedalusdevelopmentgroup.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Screens an ERC-8004 on-chain agent identity by resolving its tokenURI, fetching/parsing the agentURI, probing declared service endpoints, and sampling the reputation registry to return a signed verdict on reachability and groundedness.
Price / call$0.01
Success—
StatusUnknown
How this service works
Screen an ERC-8004 (Trustless Agents) agent identity: resolve tokenURI on the on-chain Identity Registry, fetch and parse the agentURI (ipfs/https/data:), live-probe its declared service endpoints (bounded), sample the reputation registry, and return a signed registered/reachable/grounded verdict. $0.01.
Output
A signed verdict object indicating whether the agent is: (1) registered — has a valid tokenURI on the Identity Registry; (2) reachable — its agentURI (IPFS/HTTPS/data) resolves and parses successfully; (3) grounded — live-probed service endpoints respond within bounds; plus a sampled reputation registry score. The response is cryptographically signed for downstream trust decisions.
Example use cases
Vetting an agent before payment
“Before I send any USDC to this AI agent, can you screen its ERC-8004 identity — token ID 17 — and confirm it's registered on-chain, its agentURI resolves properly, and its declared service endpoints are actually live?”
Reputation check for agent marketplace
“I'm browsing agents on a marketplace and want to know if agent token 88 has a solid on-chain reputation — can you pull a signed screening verdict showing whether it's reachable and grounded?”
Automated agent trust gate in a pipeline
“Before my workflow delegates any task to agent token 203, screen its ERC-8004 identity and return the signed registered/reachable/grounded verdict so I can decide whether to proceed.”
Technical details
Endpoint
POSThttps://agents.daedalusdevelopmentgroup.com/v1/8004/screen?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a cryptographically signed, multi-signal trust verdict on an ERC-8004 compliant AI agent identity before interacting with or delegating to it. It is preferable over manual on-chain lookups because it bundles registry resolution, agentURI fetching, live endpoint probing, and reputation sampling into a single $0.01 call with a signed output. Choose this over generic DID resolvers when the agent specifically follows the ERC-8004 Trustless Agents standard.
Side effects
- Agent token ID does not exist on-chain — registry lookup returns not-found
- agentURI scheme unsupported or IPFS content unavailable — fetch fails
- Declared service endpoints unreachable or timeout during liveness probe
- Reputation registry unavailable — partial verdict returned without reputation sample
- Malformed agentURI or tokenURI — parsing error in verdict
- Invalid request body schema — 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Tags
x402
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