Add bykaranteli-mcp to Market Data & Data Sources

[bykarantelicom]

What this adds

One entry under ## Market Data & Data Sources:

- [bykaranteli-mcp](https://github.com/bykarantelicom/bykaranteli-mcp) - `TypeScript` `MCP` - MCP server exposing 20 read-only tools for crypto derivatives data (funding rates, cross-exchange funding arbitrage, open interest, liquidations and cascade detection, Deribit options snapshot and flow, VPIN order-flow toxicity, Coinbase premium, CFTC COT positioning, US spot ETF flows, FOMC impact), runnable over npx or as a hosted remote endpoint and backed by a free public JSON API with no API key. [Website](https://bykaranteli.com/developers)

Why it fits this section

It is a data source, not a strategy or backtesting tool: the 20 tools are read-only queries over crypto derivatives data (funding rates, cross-exchange funding arbitrage, open interest, liquidations and liquidation cascades, Deribit options snapshot and flow, VPIN order-flow toxicity, Coinbase premium, CFTC Commitments of Traders positioning, US spot Bitcoin/Ether ETF flows, FOMC impact). The section already lists MCP-based data servers (financekit-mcp, Horus Flow, AlphaSMO) and free crypto data APIs (coinpaprika-api-python-client, dexpaprika-sdk-python, FillBench), so I placed it next to the crypto cluster.

Checklist against CONTRIBUTING.md

• Format: main URL is the GitHub repo, tags each in their own backticks, description is one sentence ending with a period before the [Website] link.
• Section: Market Data & Data Sources. The main URL is the open-source repository (MIT), not a commercial landing page, so the Commercial & Proprietary Services placement rule does not apply. Happy to move it if you prefer otherwise.
• Active: MIT-licensed TypeScript, published on npm as bykaranteli-mcp (0.7.2), commits within the last day.
• Documented: README has install commands for Claude Code / Claude Desktop / generic stdio clients and a table of all 20 tools.
• One project, one PR.
• Searched the README and previous PRs for "bykaranteli": no existing entry, no prior PR to this repo.

Notes

No API key, no account and no rate-limit registration are required; the server reads the public JSON API of bykaranteli.com. It can be run locally over npx -y bykaranteli-mcp or used as a hosted streamable-HTTP endpoint at https://mcp.bykaranteli.com. I maintain it, so treat this as a self-submission.

[wilsonfreitas]

Thanks for the submission. Please address these items before the entry can be approved:

1. Update the branch from main and resolve the current README conflict. The current-head validator stopped at entry-count because it detected more than one effective README change; please ensure the refreshed CI run passes.
2. Shorten the entry description to a concise factual sentence.
3. Align the linked documentation: the PR body and developer page still say 20 tools, while the proposed entry and repository now say 33. Please update those references or remove the stale website link.

Suggested entry:

- [bykaranteli-mcp](https://github.com/bykarantelicom/bykaranteli-mcp) - `TypeScript` `MCP` - MCP server providing 33 read-only crypto derivatives data tools through a free public API, runnable locally or via a hosted endpoint without an API key. [Website](https://bykaranteli.com/developers)