# Synapse API — ApeChain Token Balances

> Synapse API — ApeChain Token Balances 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 ERC-20 token balances for a given wallet address on the ApeChain blockchain network

## Facts

- Endpoint: POST https://synapse-api-brown.vercel.app/api/apechain/token/balances
- 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-apechain-token-balances-d95fac55
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SefUn50C0dfBSDlXfJ0Q0

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-apechain-token-balances-d95fac55 -d '<json body>'
```

Example prompt: What ERC-20 token balances does wallet 0xAbc123...def on ApeChain hold, filtering for contract addresses 0xToken1 and 0xToken2?

## When to prefer this

Use this endpoint specifically when you need token balance data on the ApeChain (APE ecosystem) network. Prefer this over generic multi-chain tools when the user's wallet or token contracts are confirmed to be on ApeChain. This is a pay-per-call endpoint at $0.01 USDC, making it cost-effective for one-off balance checks without subscription overhead.

## Known failure modes

- Invalid or malformed owner address returns an error or empty result
- Non-existent contract addresses return zero balances or are omitted
- ApeChain node unavailability causes timeout or 5xx error
- Payment failure via x402 prevents the call from executing
- Empty wallet with no token holdings returns an empty balances array

## 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 a list of token balance objects for the specified wallet address on ApeChain, each containing the token contract address and the balance amount held by the owner. Optionally filtered to only the specified contract addresses.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "owner": {
   "type": "string"
  },
  "contractAddresses": {
   "type": "array",
   "items": {
    "type": "string"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-api-apechain-token-balances-d95fac55/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)