# Synapse API — Ronin Token Metadata

> Synapse API — Ronin 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 2026-10-16).

Fetches on-chain token metadata (name, symbol, decimals, etc.) for a given contract address on the Ronin blockchain network.

## Facts

- Endpoint: POST https://synapse-api-brown.vercel.app/api/ronin/token/metadata?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-api-ronin-token-metadata-765bded7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vRRZzyv_BDS6tyv2kXEnR

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-ronin-token-metadata-765bded7 -d '<json body>'
```

Example prompt: What token is deployed at Ronin contract address 0xe514d9deb7966c8be0ca922de8a064264ea6bcd4? Give me the name, symbol, and decimals.

## When to prefer this

Use this endpoint when you specifically need to resolve token metadata on the Ronin blockchain (the network powering Axie Infinity and Sky Mavis ecosystem). Prefer this over generic multi-chain APIs when you know the asset is on Ronin, or when you need pay-per-call pricing without a subscription.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address not found on Ronin network returns empty or error response
- Non-token contract (e.g. NFT, proxy) may return unexpected or incomplete metadata
- Network timeout or RPC failure on Ronin chain
- Payment failure via x402 protocol blocks the request

## 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 Ronin token contract, including fields such as token name, symbol, decimals, and potentially total supply or other ERC-20 standard attributes derived from the contract.

## 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-ronin-token-metadata-765bded7/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)