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SperaxOS ERC-8004 Agent Info API
x402
SperaxOS ERC-8004 Agent Info API is a paid API for AI agents from chat.sperax.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-18).
Retrieves ERC-8004 agent metadata and DeFi intelligence profile for a given on-chain agent ID on SperaxOS
Price / call$0.001
Success—
StatusUnknown
How this service works
AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.
Output
Returns the ERC-8004 agent metadata object for the specified agentId, including on-chain registered properties, agent profile fields, and DeFi intelligence attributes associated with the agent on the SperaxOS platform. Costs $0.001 USDC per call via the x402 payment protocol on Base.
Example use cases
Inspect a DeFi agent's capabilities
“Look up the agent profile for SperaxOS agent ID 0xd4f9...e812 — I want to see what properties and capabilities it has registered on-chain.”
Verify agent identity before integration
“Before I integrate with this on-chain agent, can you fetch its ERC-8004 metadata from SperaxOS for agent ID 0x7c3a...1f55 so I can confirm it's the right one?”
Audit agent metadata for compliance
“Pull the full agent metadata from SperaxOS for agent 0x2b8e...9d01 — I need to review its registered properties as part of a DeFi compliance check.”
Technical details
Endpoint
GEThttps://chat.sperax.io/api/x402/v1/erc8004/agents/%7BagentId%7D?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to look up on-chain agent metadata or DeFi intelligence profiles for a specific ERC-8004 agent registered on SperaxOS, and you want to pay per-request with USDC on Base rather than managing an API key subscription. Prefer this over generic blockchain RPC calls when you need structured, AI-enriched agent profile data rather than raw contract state.
Side effects
- Agent ID not found — returns 404 if the agentId does not correspond to a registered ERC-8004 agent
- Payment failure — x402 payment not accepted or insufficient USDC balance results in 402 response
- Invalid agentId format — malformed or missing agentId path parameter returns 400
- Network or RPC issues on Base — may cause 503 or timeout responses
- Rate limiting or node congestion — may delay or reject requests during high traffic
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Tags
x402
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