# Session Conversion Rate - Adjacent Period Changes

> Session Conversion Rate - Adjacent Period Changes is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).

Calculates adjacent period-over-period changes in session conversion rate from supplied retail session and converted session counts.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-retail-session-conversion-period-changes?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/session-conversion-rate-adjacent-period-changes-75a9f66a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_o_ESJrLEdtdXs8Bbu1Axh

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 session-conversion-rate-adjacent-period-changes-75a9f66a -d '<json body>'
```

Example prompt: Can you calculate the period-over-period changes in session conversion rate for these two periods: period 1 had 1000 sessions with 30 converted, and period 2 had 1100 sessions with 33 converted?

## When to prefer this

Choose this endpoint when you have raw retail session data (session counts and converted session counts) across two or more consecutive periods and need to quantify how the conversion rate moved between adjacent periods. It is a local calculation requiring no live platform access, making it fast, deterministic, and privacy-safe for supplied figures.

## Known failure modes

- Missing required fields (sessions or converted_sessions) returns a validation error
- sessions value of 0 or negative triggers exclusiveMinimum violation
- Fewer than 2 rows provided fails minItems constraint
- More than 200 rows provided fails maxItems constraint
- converted_sessions exceeding sessions count may produce rates above 100% with no guardrail
- Non-numeric values in sessions or converted_sessions fields cause schema rejection

## How this service works

Session conversion rate - Adjacent period changes: Adjacent period changes for Session conversion rate. Supplied retail figures only. Local calculation and scenario analysis; no live inventory, account access, platform fee lookup or order execution. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded adjacent period changes deliverable.

## Output

Returns adjacent period-over-period changes in session conversion rate, computed from the supplied rows of sessions and converted session counts. Each row's conversion rate is derived, then deltas between consecutive periods are calculated and returned as a structured deliverable.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "converted_sessions",
     "sessions"
    ],
    "properties": {
     "sessions": {
      "type": "number",
      "default": 1000,
      "maximum": 1000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     },
     "converted_sessions": {
      "type": "number",
      "default": 30,
      "maximum": 1000000000000,
      "minimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "sessions": 1000,
     "converted_sessions": 30
    },
    {
     "sessions": 1100,
     "converted_sessions": 33
    },
    {
     "sessions": 1000,
     "converted_sessions": 30
    },
    {
     "sessions": 1100,
     "converted_sessions": 33
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/session-conversion-rate-adjacent-period-changes-75a9f66a/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)