# Kaspa Mempool Pulse — Transaction Count Over Time

> Kaspa Mempool Pulse — Transaction Count Over Time is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns Kaspa mempool transaction count time-series data for regime detection and congestion analysis.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-c82dbea9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_w7BnAChZ-vU7HuxP9N1Ku

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 api-carbon-cashmere-de-c82dbea9
```

Example prompt: Pull the Kaspa mempool transaction count time-series from Carbon Cashmere so I can see whether the network is in a high-congestion or low-activity regime right now.

## When to prefer this

Use this endpoint when you need Kaspa-specific mempool congestion data or want to perform regime detection on Kaspa network activity. Prefer over generic blockchain explorers when you need structured time-series data from a live node for ML or quantitative analysis of Kaspa BlockDAG mempool state.

## Known failure modes

- Node connectivity issues if the underlying Rusty Kaspa node is offline — likely 503 or empty response
- Rate limiting if called too frequently at $0.02/call pricing
- Truncated response if mempool dataset is very large (originalSize noted at 51606 bytes)
- No data returned for requested time window if outside available history

## How this service works

Kaspa mempool transaction count over time. AI agent API for mempool-state regime detection. Informational research data — not investment advice.

## Output

A time-series dataset of Kaspa mempool transaction counts over time, suitable for regime detection — identifying whether the mempool is in a congested, moderate, or quiet state. Response is a truncated/paginated dataset (~51KB raw) with timestamped count values.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {}
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "window": "24h",
  "summary": {
   "avg_tx_count": 12345,
   "peak_tx_count": 71582,
   "current_tx_count": 8420
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-c82dbea9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.carbon-cashmere.de](https://www.zero.xyz/host/api.carbon-cashmere.de/llms.txt)