# Carbon Cashmere AI Bitcoin Transaction Explainer

> Carbon Cashmere AI Bitcoin Transaction Explainer is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Explains any Bitcoin transaction in plain English, returning I/O flow, fee, value changes, and a natural-language summary powered by Claude Haiku from a self-hosted Bitcoin Core full node.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/ai/explain-tx/:txid
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-cd633bf8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eR1AITAAXsAJ0kaSH_NV0

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-cd633bf8
```

Example prompt: Can you explain what happened in Bitcoin transaction 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b — walk me through who sent what, the fees, and give me a plain English summary of what this transaction actually did?

## When to prefer this

Choose this endpoint when you need a human-readable, AI-generated explanation of a specific Bitcoin transaction — especially for non-technical users, audit trails, or agent workflows that need to communicate on-chain activity in natural language. Unlike raw block explorer APIs, this returns a ready-to-use plain English summary with no post-processing needed.

## Known failure modes

- Invalid or malformed txid returns an error (transaction not found)
- Unconfirmed/mempool transactions may not be available depending on node state
- Network or node downtime could cause service unavailability
- Very large or complex transactions may increase latency or truncate AI summary

## How this service works

C&C · ai-explain-tx — Explain any Bitcoin transaction in plain English. Returns I/O flow, fee, value-changes, plain-language summary. From our own Bitcoin Core full node + Claude Haiku. Live, no external API.

## Output

Returns a structured response including the transaction's input/output flow (senders and receivers with amounts), the miner fee paid, net value changes per address, and a plain-English narrative summary generated by Claude Haiku — all sourced live from a self-hosted Bitcoin Core full node.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-cd633bf8/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)