# Kaspa Supply Trend & Emission Analytics

> Kaspa Supply Trend & Emission Analytics is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Returns Kaspa circulating supply over time, current emission rate, and percent-mined, capturing the accelerating geometric halving schedule.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/kaspa-derivatives/supply-trend
- Price: $0.03/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-8225af3a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V_UftNSkWDFd1Ue0Umsjf

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-8225af3a
```

Example prompt: Can you pull the latest Kaspa circulating supply trend data — including current emission rate and what percentage of the total supply has been mined so far?

## When to prefer this

Use this endpoint when you specifically need Kaspa (KAS) tokenomics data — circulating supply history, emission rate, or percent-mined metrics — especially when modeling the unique accelerating geometric halving schedule that distinguishes Kaspa from Bitcoin-style halvings. Prefer this over generic crypto price APIs when the research focus is supply-side economics rather than market price.

## Known failure modes

- Service unavailable or upstream node issue — returns 5xx error
- Rate limit exceeded — returns 429
- Payment not processed or x402 payment required — returns 402
- Response truncated for very large historical datasets — pagination or size limits may apply

## How this service works

Kaspa circulating supply over time + emission rate + percent-mined. Captures accelerating geometric halving schedule. AI agent API for tokenomics tracking and supply-emission models. Informational research data — not investment advice.

## Output

Returns a dataset containing Kaspa's circulating supply over time, the current block emission rate, and the percent of total supply that has been mined, with data reflecting the accelerating geometric halving schedule of the KAS network.

## 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": "7d",
  "current": {
   "pct_mined": 0.9463,
   "circulating_kas": 27443295931
  },
  "emission_rate_kas_per_day": 1234567
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-8225af3a/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)