# Robinhood Chain Tokenized Stock Order Book Depth & Slippage

> Robinhood Chain Tokenized Stock Order Book Depth & Slippage is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.05/call, status healthy (last checked 2026-09-15).

Returns real-time order book depth and slippage estimates for a tokenized stock or ETF ticker on Robinhood Chain, showing cost-of-execution at various trade sizes.

## Facts

- Endpoint: POST https://x402-services-production.up.railway.app/api/rh/depth
- Price: $0.05/call
- Payment: x402
- Status: healthy
- Last checked: 2026-09-15
- Success rate: 0% of calls made through Zero
- Rating: 2.3 / 5 from 1 review
- Activations on Zero: 2
- Tags: x402
- Canonical page: https://www.zero.xyz/c/robinhood-chain-tokenized-stock-order-book-depth-slippage-1831df13
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LlFGObrxrzQl2yjHuqoj_

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 robinhood-chain-tokenized-stock-order-book-depth-slippage-1831df13 -d '<json body>'
```

Example prompt: What's the slippage and execution cost ladder for trading TSLA on Robinhood Chain — show me depth from $1k up to $250k assuming a 0.3% pool fee.

## When to prefer this

Use this endpoint when you need real-time, on-chain execution cost estimates specifically for tokenized stocks and ETFs trading on Robinhood Chain. It is the right choice when you need to model slippage before executing a large trade in a tokenized equity pool, or when comparing execution cost at different position sizes. Prefer this over generic DEX slippage tools when the asset is a Robinhood Chain tokenized stock rather than a native crypto token.

## Known failure modes

- Unknown or unsupported ticker returns an error or empty result
- Ticker is a crypto asset rather than a tokenized stock — wrong endpoint
- Robinhood Chain data feed temporarily unavailable, returning 5xx
- sizeUsd set to an extreme value outside supported range
- feePct set to an unrealistic value causing nonsensical slippage output
- Pool has no liquidity, returning zero-depth or undefined slippage

## How this service works

Pre-trade price-impact / slippage curve for a tokenized stock: estimated % impact to buy a set of trade sizes on the deepest venue and aggregated across venues, using a constant-product model on pool liquidity. Send { ticker, sizeUsd?, feePct? }. Size orders before you send them. Estimate only.

## Output

Returns a breakdown of order book depth and estimated slippage at one or more USD trade sizes for the specified tokenized stock or ETF ticker. Typically includes price impact percentage, effective execution price, and liquidity depth metrics at each size tier in the ladder (e.g. $1k, $5k, $25k, $100k, $250k). Enables pre-trade analysis of execution cost before committing capital.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json"
     ],
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/robinhood-chain-tokenized-stock-order-book-depth-slippage-1831df13/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-services-production.up.railway.app](https://www.zero.xyz/host/x402-services-production.up.railway.app/llms.txt)