# Synapse API — Kaia Token Metadata Lookup

> Synapse API — Kaia Token Metadata Lookup 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 2026-09-13).

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

## Facts

- Endpoint: POST https://synapse-api-brown.vercel.app/api/kaia/token/metadata
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-api-kaia-token-metadata-lookup-a78248b9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B4y5tnhO1l3snBur-usEJ

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-kaia-token-metadata-lookup-a78248b9 -d '<json body>'
```

Example prompt: Can you look up the token metadata for the Kaia contract at 0xABCD1234... — I need the token name, symbol, and decimals?

## When to prefer this

Choose this endpoint when you specifically need token metadata from the Kaia (formerly Klaytn) blockchain network. It is ideal for DeFi apps, wallets, and analytics tools that need to enrich contract addresses with human-readable token information on Kaia, without running your own Kaia node or indexer.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address does not correspond to a token contract (e.g. EOA or non-token contract) may return empty or error
- Kaia RPC node unavailability causes timeout or 503
- Non-existent contract address on Kaia network returns not-found error
- Payment failure (x402) results in 402 response before query is executed

## 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 Kaia token contract, typically including token name, symbol, decimal precision, and potentially total supply or other ERC-20/KIP-7 standard fields as 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-kaia-token-metadata-lookup-a78248b9/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)