# Token Observed Price Change — Two-Input Scenario Grid

> Token Observed Price Change — Two-Input Scenario Grid is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Generates a two-input scenario grid showing how token observed price change varies across combinations of current_price and previous_price values.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-price-change-stress-grid?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-observed-price-change-two-input-scenario-grid-59dbf5da
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QGSR-ZAK1wxGJeN_dtyAT

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 token-observed-price-change-two-input-scenario-grid-59dbf5da -d '<json body>'
```

Example prompt: Can you run a two-input scenario grid for token price change, using current_price values of 1.0, 1.2, and 1.5 on the X axis and previous_price values of 0.8, 1.0, and 1.1 on the Y axis, with a baseline of current_price 1.2 and previous_price 1.0?

## When to prefer this

Use this endpoint when you need to evaluate token observed price change across a structured two-dimensional range of input values, rather than a single calculation. It is ideal for sensitivity analysis, scenario planning, or threshold detection across combinations of current and previous price without needing live market feeds.

## Known failure modes

- Invalid field_x or field_y enum value returns validation error
- values_x or values_y arrays with zero items or more than 10 items are rejected
- Baseline missing required current_price or previous_price fields causes error
- Non-positive (zero or negative) price values rejected due to exclusiveMinimum:0 constraint
- Payment of 0.01 USDC not processed correctly results in 402 error

## How this service works

Token observed price change — Two-input scenario grid: Two-input scenario grid for Token observed price change. Supplied token observations only. Deterministic calculation or caller-threshold verdict, not a live scan, safety proof or trade recommendation. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded two-input scenario grid report.

## Output

Returns a two-dimensional grid (matrix) of computed token observed price change values, one result per combination of the supplied X-axis (current_price or previous_price) values and Y-axis values, based on the specified baseline. Results are deterministic calculations, not live market data or trade signals.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "field_x": {
   "enum": [
    "current_price",
    "previous_price"
   ],
   "type": "string",
   "default": "current_price"
  },
  "field_y": {
   "enum": [
    "current_price",
    "previous_price"
   ],
   "type": "string",
   "default": "previous_price"
  },
  "baseline": {
   "type": "object",
   "default": {
    "current_price": 1.2,
    "previous_price": 1
   },
   "required": [
    "current_price",
    "previous_price"
   ],
   "properties": {
    "current_price": {
     "type": "number",
     "default": 1.2,
     "maximum": 10000000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    },
    "previous_price": {
     "type": "number",
     "default": 1,
     "maximum": 10000000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  },
  "values_x": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 10000000000000000,
    "minimum": -10000000000000000
   },
   "default": [
    1.2,
    1.32
   ],
   "maxItems": 10,
   "minItems": 1
  },
  "values_y": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 10000000000000000,
    "minimum": -10000000000000000
   },
   "default": [
    1,
    1.1
   ],
   "maxItems": 10,
   "minItems": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-observed-price-change-two-input-scenario-grid-59dbf5da/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)