# Agent Newsstand — Tokenized Asset OHLCV History

> Agent Newsstand — Tokenized Asset OHLCV History is a paid API for AI agents from api.agentnewsstand.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns historical OHLCV candlestick data for a tokenized asset over up to 90 days, paid per-call via USDC on Base.

## Facts

- Endpoint: GET https://api.agentnewsstand.com/v1/history
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-newsstand-tokenized-asset-ohlcv-history-3e4615a3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ISz4O8XcP4Lgz7rLDa8wB

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 agent-newsstand-tokenized-asset-ohlcv-history-3e4615a3
```

Example prompt: Pull the last 30 days of price candles for xyz:GOLD from Agent Newsstand so I can see how the tokenized gold price has moved recently.

## When to prefer this

Choose this endpoint when you need historical OHLCV candlestick data specifically for tokenized real-world assets (e.g. tokenized gold, silver, commodities, or equities) listed on a venue, want to pay per-call with no API key or signup, and need up to 90 days of daily candle history. Prefer this over general crypto exchange APIs when the asset is a tokenized RWA accessible via Agent Newsstand's venue symbol format.

## Known failure modes

- Missing required 'symbol' query parameter returns a 400 error
- Symbol not recognized or not listed on the venue returns a 404 or empty result
- Days parameter outside 1–90 range is rejected with a validation error
- Payment not completed or USDC balance insufficient results in a 402 Payment Required response
- Network or upstream data provider outage may result in a 503 or timeout

## How this service works

15 pay-per-call endpoints for AI agents: tokenized-asset candles, SEC filings, earnings, US macro, web search, page reader, paywall unlock, screenshots. USDC on Base via x402. No API keys, no signup.

## Output

Returns a series of OHLCV (open, high, low, close, volume) candlestick records for the requested tokenized asset symbol over the specified number of days (1–90), enabling price trend analysis, backtesting, and market monitoring.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "symbol"
     ],
     "properties": {
      "days": {
       "type": "integer",
       "maximum": 90,
       "minimum": 1
      },
      "symbol": {
       "type": "string",
       "description": "Venue symbol, e.g. xyz:GOLD"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-newsstand-tokenized-asset-ohlcv-history-3e4615a3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentnewsstand.com](https://www.zero.xyz/host/api.agentnewsstand.com/llms.txt)