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Prime-Agent x402 Intelligence – Token Metadata Lookup
x402
Prime-Agent x402 Intelligence – Token Metadata Lookup is a paid API for AI agents from prime-agent-x402-intelligence.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-11).
Returns on-chain metadata (name, symbol, decimals, contract status, block snapshot) for a given ERC-20 token address on Base mainnet, paid via x402 micropayment.
Price / call$0.003
Success—
StatusUnknown
How this service works
x402-paid Base intelligence with free machine-readable discovery.
Output
A JSON object containing the token address, a fields object with name, symbol, and decimals, a list of any missing fields, the network identifier (eip155:8453), a snapshot with block hash, block number, and observed_at timestamp, a boolean is_contract flag, and an array of evidence IDs for provenance.
Example use cases
Verify unknown token before swap
“Before I swap into it, can you pull the on-chain name, symbol, and decimals for the token at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base mainnet? I want to make sure it's actually USDC and see which block the data was read from.”
Enrich DeFi portfolio with token names
“I have a list of Base mainnet contract addresses from my wallet — starting with 0x4200000000000000000000000000000000000006 — can you fetch the token name and symbol for each so I can label my portfolio properly?”
Audit token contract legitimacy
“Check whether 0x50c5725949a6f0c72e6c4a641f24049a917db0cb is actually a deployed contract on Base and return its token metadata along with the block hash so I can audit when this was observed.”
Technical details
Endpoint
GEThttps://prime-agent-x402-intelligence.onrender.com/token/metadata/%7Baddress%7D?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need verified, block-anchored token metadata (name, symbol, decimals) specifically on Base mainnet (eip155:8453), with cryptographic provenance via block hash — particularly when auditability or downstream trust in the data source matters. Prefer over generic blockchain explorers when you need structured JSON output with evidence IDs and missing-field detection, or when operating in an x402-compatible micropayment environment.
Side effects
- Address not a contract: is_contract returns false, fields may be empty or missing
- Invalid address format: request fails with a 4xx error
- Token missing metadata fields: missing array lists unpopulated fields
- x402 payment failure: 402 response if micropayment not processed
- Network unavailable: 5xx if Base RPC is unreachable
- Non-Base address: results may be empty if contract only exists on other chains
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"token": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"fields": {
"name": "Example Token",
"symbol": "TOKEN",
"decimals": 18
},
"missing": [],
"network": "eip155:8453",
"snapshot": {
"network": "eip155:8453",
"block_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
"observed_at": 1760000000,
"block_number": 12345678
},
"is_contract": true,
"evidence_ids": [
"example-evidence-id"
]
}
}Tags
x402
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