# RobinX Wallet Entity Snapshot Archive

> RobinX Wallet Entity Snapshot Archive is a paid API for AI agents from api.robinx.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns the accumulated holder-snapshot history for a wallet address, listing every token it has appeared holding across all recorded snapshots on Robinhood Chain.

## Facts

- Endpoint: GET https://api.robinx.io/entity/:address
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/robinx-wallet-entity-snapshot-archive-70493eea
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gRlPTi1fk_PiavfS8HA-c

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 robinx-wallet-entity-snapshot-archive-70493eea
```

Example prompt: Pull up the full holder-snapshot archive for wallet 0x020bfC650A365f8BB26819deAAbF3E21291018b4 on RobinX — I want to see every token it's appeared holding, how many snapshots it's been in, and what the latest balance looks like.

## When to prefer this

Use this endpoint when you need to understand a wallet's historical presence across the Robinhood Chain holder archive — specifically how many snapshots it has appeared in and what tokens it holds. Prefer this over live balance APIs when you need longitudinal or cumulative holder data rather than current state, and over social/caller-grade endpoints when the question is about on-chain token holdings rather than X (Twitter) activity.

## Known failure modes

- Address not found in archive — wallet has never appeared in any recorded holder snapshot, returns empty tokens array
- Invalid address format — malformed Ethereum-style address rejected before lookup
- Payment failure — x402 payment of $0.05 USDC not processed, request blocked
- Rate limiting — too many requests in a short window returns 429
- Network timeout — archive query takes too long for large holder sets

## How this service works

Wallet-entity appearances across the accumulated holder-snapshot archive

## Output

Returns an array of token records for the queried wallet address, each containing the token contract address, the number of times that wallet appeared in holder snapshots for that token, and the most recent recorded balance.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "wallet/token contract address 0x…"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "data": {
      "tokens": [
       {
        "token": "0x020bfC650A365f8BB26819deAAbF3E21291018b4",
        "snapshots": 4,
        "latest_balance": 1250000
       }
      ]
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "data": {
  "tokens": [
   {
    "token": "0x020bfC650A365f8BB26819deAAbF3E21291018b4",
    "snapshots": 4,
    "latest_balance": 1250000
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/robinx-wallet-entity-snapshot-archive-70493eea/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.robinx.io](https://www.zero.xyz/host/api.robinx.io/llms.txt)