# market.memoryapi.org Tokenized Securities Arbitrage

> market.memoryapi.org Tokenized Securities Arbitrage is a paid API for AI agents from market.memoryapi.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Returns real-time arbitrage spread data between tokenized securities and their underlying stock prices, flagging premium or discount opportunities.

## Facts

- Endpoint: GET https://market.memoryapi.org/x402/market/arbitrage
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market-memoryapi-org-7a67a7ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zPT5dp5IqZFxT1_ZTFyrb

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 market-memoryapi-org-7a67a7ed
```

Example prompt: Show me current arbitrage spreads between tokenized stocks and their actual share prices — I want to see which ones are trading at the biggest premium or discount right now.

## When to prefer this

Choose this endpoint when you need to compare tokenized security prices against real underlying stock prices to identify mispricings or arbitrage windows. It is distinct from crypto-only arbitrage (covered by a sibling endpoint) and is specifically designed for the tokenized equity vs traditional equity spread use case.

## Known failure modes

- No arbitrage data available for a given symbol — returns empty result or 404
- Data feed latency causing stale spread values
- Symbol not available as a tokenized security — returns not found error
- Payment failure for x402 micropayment — returns 402 Payment Required
- Rate limiting if called too frequently

## How this service works

Real-time arbitrage spreads between tokenized securities and actual stock prices. Identify premium/discount opportunities.

## Output

A list of tokenized security arbitrage opportunities including the tokenized price, underlying stock price, spread percentage, and whether the tokenized version is at a premium or discount versus the real market price.

## Example request

```json
{
 "cik": "0001067983",
 "institution": "Berkshire Hathaway"
}
```

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "properties": {
    "method": {
     "type": "string",
     "enum": [
      "GET"
     ]
    }
   },
   "required": [
    "method"
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market-memoryapi-org-7a67a7ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.memoryapi.org](https://www.zero.xyz/host/market.memoryapi.org/llms.txt)