# ScriptMasterLabs Truth Verify – Ticker Symbol Provider Check

> ScriptMasterLabs Truth Verify – Ticker Symbol Provider Check is a paid API for AI agents from scriptmasterlabs.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).

Returns a read-only provider identity check and cross-verified market data snapshot for a given ticker symbol before a pay-per-call x402 payment is accepted.

## Facts

- Endpoint: GET https://scriptmasterlabs.com/api/truth/verify/%7Bsymbol%7D?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-truth-verify-ticker-symbol-provider-check-4342010a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2PYCewyb8TBal67f-q_Sc

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 scriptmasterlabs-truth-verify-ticker-symbol-provider-check-4342010a
```

Example prompt: Before I trust the market data, can you run a truth check on AAPL through SML Truth Verify so I can see which live provider is behind the data and confirm it's cross-verified?

## When to prefer this

Choose this endpoint when you need to inspect the identity of the underlying data provider and confirm cross-verified evidence before committing to a pay-per-call financial data transaction, especially in x402 payment flows where trust in data provenance is critical. Prefer it over raw market data APIs when hallucination defense or auditability of the data source matters more than raw speed or breadth of data.

## Known failure modes

- Invalid ticker symbol format (must match ^[A-Z0-9.]{1,10}$) returns an error
- Unknown or unsupported symbol returns no provider or empty verification
- Payment not accepted if x402 flow is not correctly completed by the caller
- Service unavailable if upstream market data provider is down
- Stale or missing verification evidence if provider is temporarily unreachable

## How this service works

Pay-per-call APIs and a read-only provider check for x402 buyers. Inspect evidence and live terms before a caller-controlled payment; accept delivery with proof.

## Output

A JSON object containing the verification status ('ready'), the requested ticker symbol, the product name ('SML Truth Verify'), an array of live provider identities, and a cross-checked market data verification result.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "const": "GET"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "symbol": {
       "type": "string",
       "pattern": "^[A-Z0-9.]{1,10}$",
       "description": "Ticker symbol mirrored from the URL path for Bazaar discovery Search intents: fact verification api, fact verification, truth check api, market data verification, evidence backed, hallucination defense."
      }
     },
     "additionalProperties": true
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object"
    }
   },
   "additionalProperties": false
  }
 },
 "additionalProperties": false
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "status": "ready",
  "symbol": "AAPL",
  "product": "SML Truth Verify",
  "providers": [
   "<live-provider>"
  ],
  "verification": "<cross-checked-market-data>"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scriptmasterlabs-truth-verify-ticker-symbol-provider-check-4342010a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from scriptmasterlabs.com](https://www.zero.xyz/host/scriptmasterlabs.com/llms.txt)