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SperaxOS ERC-8004 Get Agent
x402
SperaxOS ERC-8004 Get Agent is a paid API for AI agents from chat.sperax.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).
Looks up on-chain ERC-8004 agent token metadata by token ID on a specified blockchain network
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 on-chain ERC-8004 agent token metadata for the specified token ID on the requested chain, including registered agent details such as identity fields, capabilities, and any associated on-chain data stored in the ERC-8004 agent record.
Example use cases
Verify on-chain agent registration
“Can you check if agent token ID 7 is registered on the BSC mainnet and show me what's on record for it?”
Resolve agent identity before interacting
“Before I interact with this autonomous agent, can you pull its on-chain profile using ERC-8004 token ID 103 on Arbitrum?”
Debug agent token on testnet
“I'm testing my DeFi agent deployment — can you look up token ID 1 on base-sepolia and show me what the ERC-8004 registry has for it?”
Technical details
Endpoint
POSThttps://chat.sperax.io/api/x402/tools/erc8004/getAgent?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to resolve a specific ERC-8004 agent token to its on-chain metadata across any of the 12 supported EVM networks. Prefer this over generic blockchain explorers when you need structured agent-specific data in a machine-readable format, or when operating in a pay-per-use agent workflow without a long-term API key.
Side effects
- Invalid or non-existent token ID returns an error or empty result
- Unsupported chain identifier causes a validation error
- Network RPC errors or chain congestion may cause timeouts
- Token ID not yet minted returns a not-found response
- Payment of 0.001 USDC via x402 fails if wallet balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | Blockchain to query. Options: bsc-testnet, bsc-mainnet, ethereum, sepolia, arbitrum, base, optimism, polygon, arbitrum-sepolia, base-sepolia, optimism-sepolia, polygon-amoy |
| agentId | string | The token ID of the agent to look up |
Tags
x402
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