Add Carbon & Cashmere — 104-tool MCP server (node-backed crypto intelligence, x402)

[Nedeljko87]

Adds Carbon & Cashmere to AI Agent Integration → MCP section.

Why x402-relevant:

• 100+ x402-paid REST endpoints, $0.003–$2.00 USDC
• 4-chain payment support: Base, Solana, Algorand, Stellar
• Integrates with 11 x402 facilitators (CDP, Dexter, PayAI, OpenX402, etc.)
• 104 MCP tools wrapping the REST API

Unique in x402 ecosystem:

• Proprietary Bitcoin Core node (ZMQ whale stream, UTXO set, mempool live)
• Proprietary Rusty-Kaspa full node (DAG metrics unavailable via public APIs)
• Proprietary Subtensor Lite node (Bittensor subnet data)
• Own ML-driven FTMO prop-firm trading track record (passed $100k challenge, 81.25% WR)
• LLM-generated research reports via Nemotron Super 120B

Statistical tools not commonly found in x402 services:

• GARCH(1,1) conditional volatility + forecasts
• Engle-Granger cointegration tests
• OU half-life mean-reversion analytics

Discovery: https://api.carbon-cashmere.de/v1/endpoints (free, no auth)
MCP endpoint: https://api.carbon-cashmere.de/mcp/

[Nedeljko87]

Friendly bump — PR open and MERGEABLE for 4 days. Quick update on what we've shipped since the PR opened:

• Bazaar discovery enrichment middleware deployed (CDP merchant API now indexes route descriptions + JSON schemas)
• 104 MCP tools live (Streamable HTTP at /mcp/)
• 4-chain payment support verified end-to-end (Base/Solana/Algorand/Stellar) with 11 facilitators connected
• x402 SDK pinned to post-2.8.0 with MCP Bazaar discovery extension

If anything in the PR needs adjustment for your awesome list format, happy to revise. Thanks!