# Synapse API — Degen Token Metadata

> Synapse API — Degen 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 2026-10-10).

Retrieves on-chain token metadata (name, symbol, decimals, supply, etc.) for a given smart contract address across 57+ blockchain networks.

## Facts

- Endpoint: POST https://synapse-api-brown.vercel.app/api/degen/token/metadata?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-api-degen-token-metadata-8665afa4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7kD_AWCEAtXDJ3H_lvGgx

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability synapse-api-degen-token-metadata-8665afa4 -d '<json body>'
```

Example prompt: What are the name, symbol, decimals, and total supply for the token at contract address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48?

## When to prefer this

Use this endpoint when you need quick, pay-per-call on-chain token metadata resolution across a wide range of blockchains (57+) without setting up your own RPC infrastructure. Ideal for DeFi agents, portfolio trackers, or token verification workflows that need name, symbol, decimals, and supply from a contract address on demand.

## Known failure modes

- Invalid or malformed contract address returns an error or empty response
- Contract address exists but is not a token contract (e.g. a plain wallet or non-ERC20 contract) may return null fields
- Unsupported blockchain network for the given address format
- Network congestion or RPC errors may cause timeouts
- Contract not yet indexed or deployed on a supported chain

## 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 token metadata for the given contract address, including token name, symbol, number of decimals, total supply, and potentially other ERC20/token-standard fields stored on-chain.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "contractAddress": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-api-degen-token-metadata-8665afa4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from synapse-api-brown.vercel.app](https://www.zero.xyz/host/synapse-api-brown.vercel.app/llms.txt)