api.carbon-cashmere.de

# Carbon & Cashmere > Machine-native crypto intelligence: real-time and historical Bitcoin, Kaspa (BlockDAG), and Bittensor/dTAO network data measured on independently operated full nodes, plus AI token-safety verdicts. Every data endpoint is sold per-request via x402 USDC micropayments — no signup, no API key. Informational research data, not investment advice. Carbon & Cashmere operates its own Bitcoin, Kaspa (rusty-kaspa), and Bittensor archive infrastructure and sells pre-computed, agent-ready answers (not raw table dumps). Typical buyers are autonomous agents, trading bots, research pipelines, and monitoring systems. ## Machine-readable entry points - [x402 discovery document](https://api.carbon-cashmere.de/.well-known/x402): payment protocol discovery - [Paid resource catalog](https://api.carbon-cashmere.de/discovery/resources): all paid HTTP endpoints with prices, schemas, and methods (x402 Bazaar format) - [MCP server (Streamable HTTP)](https://api.carbon-cashmere.de/mcp/): 50 tools for agent frameworks; SSE transport at https://api.carbon-cashmere.de/mcp/sse - [API documentation](https://www.carbon-cashmere.de/api-docs.html): human-readable API overview ## Products - Kaspa BlockDAG intelligence: DAG state and tips, chain density, GHOSTDAG blue/red block color, throughput health, network hashrate, fee market, supply/emission trend, mining economics (revenue per TH/s/day + breakeven from live-measured block subsidy) — measured directly on our own archival Kaspa node (`/v1/kaspa-derivatives/*`) - Bittensor/dTAO subnet analytics: alpha price history, subnet emission trends, stake-flow microstructure, coordination, registration-cost data and due-diligence verdicts (mining viability, owner reputation, weights integrity) from months of continuous high-cadence snapshots (`/v1/bittensor-derivatives/*`) - Bitcoin node data: block ranges, per-block details, coinbase messages, fee statistics, whale stream, miner attribution, mining economics (hashprice in sat