# Nansen Wallet Balance Lookup via VIBE

> Nansen Wallet Balance Lookup via VIBE is a paid API for AI agents from api.vibe.airforce, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-14).

Fetches on-chain token balance data for wallets using Nansen's data infrastructure

## Facts

- Endpoint: POST https://api.vibe.airforce/api/x402/vibe-tools/data-provider/nansen/balances
- Price: $0.06/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-vibe-airforce-96bb56e1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IWD3koxQyl_bIfHJo2Rmw

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 api-vibe-airforce-96bb56e1 -d '<json body>'
```

Example prompt: What tokens and balances does the wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 currently hold on Ethereum — pull the Nansen balance data for it.

## When to prefer this

Use this endpoint when you need reliable, Nansen-sourced on-chain wallet balance data, especially for smart money wallet analysis or DeFi portfolio lookups. Prefer this over generic RPC balance calls when you want enriched token-level detail backed by Nansen's analytics infrastructure. Particularly useful in conjunction with other VIBE smart money endpoints.

## Known failure modes

- Invalid or malformed wallet address returns an error
- Unsupported chain or network returns empty or error response
- Rate limiting or payment failure (x402) if USDC balance is insufficient
- Wallet with no token holdings may return empty balance list
- Nansen data unavailability or upstream timeout causes delayed or failed response

## How this service works

Nansen blockchain analytics — 44 endpoints (smart money, profiler, TGM, perps, indicators)

## Output

Returns a structured data object containing the token balances and holdings for the queried wallet, sourced from Nansen's on-chain data layer, including token symbols, amounts, and potentially USD values.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "payload": {
   "type": "object",
   "description": "Nansen query parameters (chains, token_address, walletAddress, etc.)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-vibe-airforce-96bb56e1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vibe.airforce](https://www.zero.xyz/host/api.vibe.airforce/llms.txt)