Third Bridge MCP Server

Third Bridge MCP is a provider-hosted Model Context Protocol layer that lets LLM agents query Third Bridge's proprietary library of expert interview transcripts in real time. The library covers 100,000+ Forum, Primer, and Community transcripts across more than 70,000 companies, traditionally used by private equity, hedge fund, and corporate strategy teams. Instead of facilitating individual expert calls, the MCP activates the corpus as a structured "brain" that AI agents can search, retrieve, and synthesize, with outputs linked back to the underlying source transcript to reduce hallucination risk.

The Third Bridge tools are surfaced through Aiera's MCP server, which is the integration partner Third Bridge announced alongside Anthropic for Claude for Financial Services in October 2025. Connecting to https://mcp-pub.aiera.com with an API key gives an agent access to three Third Bridge specific tools (find_third_bridge_events, get_third_bridge_event, search_thirdbridge) alongside Aiera's broader equities, filings, transcripts, and research tools. The same server also works with ChatGPT, ModelML, and other MCP-compatible clients.

Access is gated. A user's firm needs an existing Third Bridge Content agreement and a commercial or enterprise LLM subscription that prohibits training on inputs and outputs. Pilots run for two weeks at Third Bridge's discretion, and bulk extraction of transcripts is prohibited under the pilot terms.

Tools

Prerequisites

• Active Third Bridge Content agreement (required, this is not a self-serve product)
• Commercial or enterprise LLM subscription that prohibits training on inputs/outputs
• Aiera API key (Third Bridge tools are exposed via the Aiera MCP server)
• For Claude: Admin, Owner, or Primary Owner role on your Claude workspace

Request access

1. Register interest at the Third Bridge MCP pilot page.
2. Confirm your firm's existing Third Bridge content entitlements.
3. Obtain an Aiera API key from Aiera once the pilot is provisioned.

Connect from Claude (custom connector)

In Claude, go to Admin settings, then Connectors, then Add custom connector. Use the following remote MCP URL, replacing {API_KEY} with your Aiera API key:

https://mcp-pub.aiera.com/?api_key={API_KEY}

After saving, enable the connector under Settings, Connectors.

Connect from a Claude API agent

{
  "mcp_servers": [
    {
      "type": "url",
      "url": "https://mcp-pub.aiera.com/?api_key=YOUR_AIERA_API_KEY",
      "name": "third-bridge"
    }
  ]
}

Notes

• Third Bridge tools are namespaced inside the Aiera server: find_third_bridge_events, get_third_bridge_event, and search_thirdbridge.
• The pilot lasts two weeks unless extended. Bulk extraction of transcripts is prohibited under the pilot terms.

• Run citation-backed due diligence on a private company by semantically searching expert interview transcripts for product, pricing, and competitor signals.
• Surface every Third Bridge Forum interview tied to a Bloomberg ticker over a date range as part of an earnings preview workflow.
• Build an agentic investment memo that synthesizes Third Bridge expert views with Aiera's earnings transcripts and SEC filings in a single MCP session.
• Track competitive dynamics in a sector by filtering Third Bridge events by sector or subsector and summarizing recurring themes.
• Pull the full transcript and metadata for a specific Third Bridge interview when an analyst flags it during agentic research.

• "Search Third Bridge transcripts for expert views on Nvidia's data center pricing power in the last six months and quote the strongest passages with citations."
• "Find all Third Bridge Forum events tagged to ticker LULU US between January and April and summarize the consensus on inventory levels."
• "Get the full details for Third Bridge event 1234567 and extract the experts' positions on competitive threats."
• "Compare what Third Bridge experts said about CrowdStrike versus SentinelOne over the last year, grouped by theme."
• "Pull every Primer transcript in the cybersecurity subsector from Q1 and synthesize a market map."

• Official Third Bridge content, citation-linked to the source transcript, which reduces hallucination risk in regulated research workflows.
• Works across major MCP clients including Claude for Financial Services, ChatGPT, and ModelML through one remote URL.
• Tools support practical institutional filters (Bloomberg ticker, sector, watchlist, index, date range, content type).
• Co-launched with Anthropic and Aiera, so the integration is supported end to end rather than community maintained.

• Not self-serve: requires an existing Third Bridge Content agreement, enterprise LLM subscription, and an Aiera API key.
• Pilot access is limited to two weeks at Third Bridge's discretion, and bulk extraction is contractually prohibited.
• No public GitHub repo or open documentation for the Third Bridge specific tools; the surface area is documented inside Aiera's MCP docs rather than by Third Bridge directly.

• Aiera MCP for earnings calls, SEC filings, and broader market data on the same server.
• AlphaSense Enterprise Intelligence for expert call transcripts and broker research (no official MCP server published).
• Tegus / AlphaSights expert transcript libraries, accessed via their own APIs rather than a native MCP server.