# Carbon & Cashmere Kaspa Fee-Regime Analytics

> Carbon & Cashmere Kaspa Fee-Regime Analytics is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns the Kaspa fee-market regime distribution across fee buckets, including the sub-floor segment affected by the Toccata hardfork's minimum fee displacement, with pre/post-hardfork comparative analytics.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/carbon-cashmere-kaspa-fee-regime-analytics-92c37dc3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fVRpXKW4CbNOTCSNXDTnS

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 carbon-cashmere-kaspa-fee-regime-analytics-92c37dc3
```

Example prompt: Pull the current Kaspa fee-market regime breakdown from Carbon & Cashmere — I want to see how the Toccata hardfork's minimum fee has shifted the fee-bucket distribution, especially the sub-floor segment.

## When to prefer this

Use this endpoint when you need granular Kaspa fee-market regime data, specifically the fee-bucket distribution and sub-floor segment analysis related to the Toccata hardfork's minimum fee changes. It is uniquely suited for pre/post-hardfork fee analytics research on Kaspa that other general crypto APIs do not provide.

## Known failure modes

- Payment not received or insufficient — 402 payment required
- Rate limit exceeded — too many requests
- Upstream Kaspa node data unavailable — service temporarily down
- Malformed query parameters — 400 bad request
- Hardfork data not yet available if Toccata not yet activated

## How this service works

Kaspa fee-market regime: fee-bucket distribution incl. the sub-floor segment the Toccata minimum displaces. Unique pre/post-hardfork fee analytics. Informational research data — not investment advice.

## Output

Returns a structured object with hourly fee-bucket distribution arrays and a summary object showing the Kaspa fee market regime, including the sub-floor segment displaced by the Toccata minimum fee, enabling pre/post-hardfork fee analytics comparisons.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "hourly": {
       "type": "array"
      },
      "summary": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carbon-cashmere-kaspa-fee-regime-analytics-92c37dc3/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)