# Syra Nansen Smart Money Holdings

> Syra Nansen Smart Money Holdings is a paid API for AI agents from api.syraa.fun, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-14).

Retrieves Nansen 'smart money' wallet holdings data showing which tokens sophisticated crypto wallets are holding

## Facts

- Endpoint: GET https://api.syraa.fun/nansen/smart-money/holdings
- 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/syra-nansen-smart-money-holdings-14736ecd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ukUsx6L8wbo8k-BLFvshA

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 syra-nansen-smart-money-holdings-14736ecd
```

Example prompt: What tokens are Nansen's smart money wallets currently holding? I want to see what sophisticated crypto investors have in their portfolios right now.

## When to prefer this

Use this endpoint when you need on-chain intelligence about what sophisticated, high-signal crypto wallets (as classified by Nansen) are holding — ideal for generating alpha signals, informing investment research, or monitoring smart money sentiment. Prefer this over generic blockchain explorers when you specifically need Nansen's curated smart money label applied to holdings data.

## Known failure modes

- Upstream Nansen API unavailable — returns 502 or empty data
- Payment not confirmed on-chain — 402 payment required error
- Rate limit exceeded — returns 429 too many requests
- Stale data if Nansen feed is delayed — holdings may not reflect latest on-chain activity

## How this service works

Nansen: smart money holdings

## Output

Returns a list of token holdings attributed to Nansen-identified 'smart money' wallets, including asset names, quantities, and portfolio allocations representing the positions of sophisticated on-chain investors.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/syra-nansen-smart-money-holdings-14736ecd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.syraa.fun](https://www.zero.xyz/host/api.syraa.fun/llms.txt)