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Synapse API — Optimism Token Metadata
x402
Synapse API — Optimism Token Metadata is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Retrieves on-chain token metadata (name, symbol, decimals, etc.) for a given ERC-20 contract address on the Optimism network
Price / call$0.01
Success—
StatusUnknown
How this service works
High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.
Output
Returns on-chain metadata for the specified ERC-20 token contract on Optimism, typically including the token name, symbol, and decimal precision as stored on the blockchain.
Example use cases
Identify unknown Optimism token
“I have this Optimism contract address 0x7F5c764cBc14f9669B88837ca1490cCa17c31607 — can you tell me what token it is, its symbol, and how many decimals it uses?”
DeFi portfolio token enrichment
“I'm building a dashboard and need the name, symbol, and decimals for a list of Optimism token contracts — start with 0x4200000000000000000000000000000000000042.”
Verify token contract legitimacy
“Before I swap into this token, can you pull the on-chain metadata for Optimism contract 0x8700dAec35aF8Ff88c16BdF0418774CB3D7599B4 so I can confirm it's the real USDC and not a fake?”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/optimism/token/metadataWhen to prefer
Use this endpoint when you need to resolve token identity (name, symbol, decimals) for a contract address specifically on the Optimism L2 network. Prefer this over generic blockchain explorers when you need a programmatic, pay-per-call API response suitable for agent workflows and multi-chain pipelines covering Optimism.
Side effects
- Invalid or malformed contract address returns an error response
- Contract address exists but is not an ERC-20 token (e.g. EOA or non-standard contract) may return empty or null fields
- Network congestion or RPC node issues may cause timeouts
- Contract not deployed on Optimism (e.g. Ethereum mainnet address) returns no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| contractAddress | string |
Tags
x402
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