# Tokenized Stocks on Base — Cross-Issuer Lookup

> Tokenized Stocks on Base — Cross-Issuer Lookup is a paid API for AI agents from x402-accelerometer-feed.fly.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-20).

Returns per-issuer on-chain data for a given stock ticker on Base, including verified contract addresses, live prices, premium/discount vs real share, pool depth, 24h volume, cross-issuer spread, and impostor token warnings.

## Facts

- Endpoint: GET https://x402-accelerometer-feed.fly.dev/tokenized-equities/same-stock/:ticker?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tokenized-stocks-on-base-cross-issuer-lookup-98637ff3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MgrdYYjntFXQvHuGfAmFY

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 tokenized-stocks-on-base-cross-issuer-lookup-98637ff3
```

Example prompt: Can you pull up all the tokenized NVDA data on Base — both ST0x wtNVDA and Coinbase NVDAc — including live prices, premium vs the real share, pool liquidity, and any impostor tokens I should watch out for?

## When to prefer this

Use this endpoint when you need a comprehensive, cross-issuer view of a tokenized stock on Base in a single call — especially when you want to compare ST0x and Coinbase tokenized stock prices, verify contract legitimacy, assess pool liquidity, or detect impostor tokens. Prefer this over issuer-specific endpoints when the user has not specified a preferred issuer or when arbitrage, safety checks, or best-execution decisions require seeing all issuers at once.

## Known failure modes

- Unknown or unsupported ticker returns empty issuers array
- Token not yet available on Base returns available:false for that issuer
- Price feed temporarily unavailable returns null price_usd
- No liquidity pools found returns null best_pool and zero volume
- xStocks tokens flagged as not on Base and excluded from main issuers
- Impostor detection may not catch brand-new fraudulent tokens

## How this service works

Use this when you need the same stock from every issuer on Base in one call: send a ticker (NVDA, AAPL, TSLA) and get, per issuer — ST0x (wtNVDA) and Coinbase tokenized stocks (NVDAc, B20) — the genuine contract verified against the issuer's own registry, live price, premium/discount vs the real share in bps, pool depth and 24h volume, the ST0x-vs-Coinbase spread, any direct cross-issuer pool, and every impostor token using the same symbol. xStocks flagged as not on Base.

## Output

A structured JSON object with per-issuer entries for the requested ticker, each containing: verified contract address, token symbol, live price in USD, premium/discount vs real share in basis points, best pool details, 24h volume, total liquidity, ST0x vs Coinbase spread, any direct cross-issuer pool, and an impostors array listing unverified tokens using the same symbol with their DEX, liquidity, and reason for flagging. Also includes underlying real-share reference data and a disclaimer.

## 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"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "ticker"
     ],
     "properties": {
      "ticker": {
       "type": "string",
       "description": "stock ticker (NVDA, AAPL, TSLA); ST0x (wtNVDA) or Coinbase (NVDAc) symbols also accepted"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "kind": {
       "type": "string"
      },
      "read": {
       "type": "string"
      },
      "as_of": {
       "type": "string"
      },
      "chain": {
       "type": "string"
      },
      "ticker": {
       "type": "string"
      },
      "issuers": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "note": {
          "type": [
           "string",
           "null"
          ]
         },
         "issuer": {
          "type": "string"
         },
         "paused": {
          "type": [
           "boolean",
           "null"
          ]
         },
         "symbol": {
          "type": [
           "string",
           "null"
          ]
         },
         "address": {
          "type": [
           "string",
           "null"
          ]
         },
         "genuine": {
          "type": [
           "object",
           "null"
          ],
          "properties": {
           "by": {
            "type": "string"
           },
           "verified": {
            "type": "boolean"
           }
          }
         },
         "standard": {
          "type": [
           "string",
           "null"
          ]
         },
         "available": {
          "type": "boolean"
         },
         "best_pool": {
          "type": [
           "object",
           "null"
          ]
         },
         "price_usd": {
          "type": [
           "number",
           "null"
          ]
         },
         "multiplier": {
          "type"
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tokenized-stocks-on-base-cross-issuer-lookup-98637ff3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-accelerometer-feed.fly.dev](https://www.zero.xyz/host/x402-accelerometer-feed.fly.dev/llms.txt)