What changed: 2026-11-12

• Added 103 source cards from batch 1 (all retrieved 2026-11-12).
• Added draft pages for Robinhood, Coinbase, Webull, Interactive Brokers and Alpaca.
• Added the approval-model taxonomy, rails starter pages, the Build section and a launch-broker comparison.
• Added llms.txt, data/providers.json and data/providers.csv.
• Notable while drafting: Alpaca’s own agentic repo documents a hosted Trading MCP at https://api.alpaca.markets/mcp, which earlier research had marked unconfirmed.¹

Sources

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Suggest a correction (opens a GitHub issue)

Footnotes

1. GitHub - alpacahq/agentic: Multi-platform plugin marketplace for Alpaca APIs · GitHub. Alpaca (GitHub), official, retrieved 2026-11-12. ↩