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Synapse API — Plasma Token Metadata
x402
Synapse API — Plasma 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 2026-10-12).
Returns on-chain metadata for a token given its contract address across 57+ blockchain networks
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 structured on-chain token metadata for the given contract address, typically including token name, symbol, decimal precision, and other relevant on-chain attributes registered for that token contract across supported blockchain networks.
Example use cases
DeFi portfolio token identification
“I have a list of contract addresses from my DeFi wallet — can you fetch the token name, symbol, and decimals for 0xdAC17F958D2ee523a2206206994597C13D831ec7 so I can label it properly in my portfolio tracker?”
Token contract verification for trading bot
“Before my trading bot executes a swap, I need to verify the token metadata for contract 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 — grab the name, symbol, and decimal count for me.”
NFT or token due diligence
“I'm researching a new token someone sent me — can you pull up all the on-chain metadata for contract address 0x7D1AfA7B718fb893dB30A3aBc0Cfc608AaCfeBB0 so I can see what it actually is?”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/plasma/token/metadata?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, pay-per-call token metadata lookups without committing to a subscription, especially when querying across a wide range of blockchains (57+). Prefer this over free public RPC calls when you need reliable, aggregated multi-chain support without managing your own node infrastructure.
Side effects
- Invalid or malformed contract address returns an error
- Contract address not found on any supported network returns empty or 404-style response
- Contract exists but is not a standard token (e.g. NFT, proxy) may return incomplete metadata
- Network congestion or RPC unavailability may cause timeouts
- Payment failure via x402 protocol blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| contractAddress | string |
Tags
x402
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