# Market Data Snapshot

> Market Data Snapshot is a paid API for AI agents from phion.systems, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-20).

Captures a timestamped, provenance-tagged public market-data snapshot with freshness metadata

## Facts

- Endpoint: POST https://phion.systems/v1/paid/trust/market-data-snapshot?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market-data-snapshot-3dc7d990
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ghwa-Rjaf9BGodUGN1GOj

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-data-snapshot-3dc7d990 -d '<json body>'
```

Example prompt: Grab me a verified market data snapshot for BTC/USD right now — I need the price, the exact timestamp, and the provenance so I know where the data came from and how fresh it is.

## When to prefer this

Choose this endpoint when you need a verifiable, auditable market data point — not just a raw price feed. It is best suited for agent workflows where provenance, freshness guarantees, and a signed timestamp matter, such as pre-trade checks, compliance logging, or trust-gated decision pipelines. Prefer it over generic price APIs when the downstream consumer needs to verify where data came from and how old it is.

## Known failure modes

- Requested market symbol not found or unsupported — returns 404 or equivalent error
- Data source temporarily unavailable, resulting in stale or missing snapshot
- Freshness policy cannot be met if upstream data is delayed
- Payment authorization failure if x402 payment is not correctly attached
- Schema validation error if required fields are missing from the request body
- Rate limiting or quota exceeded for high-frequency snapshot requests

## How this service works

Capture a timestamped public market-data snapshot with freshness and provenance

## Output

Returns a structured snapshot containing the market data values (e.g. price, volume), an exact UTC timestamp of capture, provenance metadata identifying the data source, and a freshness indicator showing how current the data is. May include a cryptographic hash or signed evidence for auditability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "additionalProperties": true
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "example"
   ],
   "properties": {
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market-data-snapshot-3dc7d990/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phion.systems](https://www.zero.xyz/host/phion.systems/llms.txt)