Fiber AI

What Fiber AI MCP server does

Fiber AI MCP server gives an AI agent access to Fiber AI data and API operations through the Model Context Protocol. It supports company searches using criteria such as industry, location, company size, and funding. People searches can filter by title, seniority, or department.

The direct tools also cover contact and profile workflows. api_individualRevealSync can reveal a work email and phone number for a LinkedIn profile. api_companyLiveFetch and api_personLiveFetch retrieve live LinkedIn data for companies and people. api_getOrgCredits reports the organization’s remaining credit balance.

How it works

Fiber AI provides three remote MCP endpoints. V2 is an API-key-authenticated server with direct tools for the highest-priority operations. V3 uses browser-based OAuth through Clerk SSO and exposes every public operation as a direct tool with compact descriptions. Core uses an API key and a small set of discovery tools, allowing an agent to search the API catalog, inspect schemas, and invoke an operation by ID.

The remote URLs are https://mcp.fiber.ai/mcp/v2, https://mcp.fiber.ai/mcp/v3, and https://mcp.fiber.ai/mcp. V2 and Core use Streamable HTTP. For an operation that is not represented by a direct V2 tool, Core can help locate its endpoint and provide its full schema before calling it.

Setup and configuration

Get a Fiber AI API key for V2 or Core from the Fiber AI API settings page. The key can be sent as an x-api-key header, supplied as Authorization: Bearer <key>, or passed in the request body as apiKey. Header configuration keeps the key out of chat history; passing it through chat is simpler but leaves it in the conversation.

V3 does not require a pasted API key. The client opens a browser login flow and reuses the resulting OAuth session. Client-specific setup instructions are provided for Cursor, Claude Code, Claude Desktop, Codex, Visual Studio Code, Windsurf, and Zed. Stdio-only clients can use mcp-remote to forward requests to the V2 HTTP endpoint.

Tools and capabilities

V2 includes direct tools for company search, people search, individual contact reveal, live company data, live person data, and credit checks. Core includes search_endpoints, list_all_endpoints, get_endpoint_details_full, and call_operation. The supplied tool list also identifies list_tag_packs in the Core server documentation, although its behavior is not described in the available material.

Limitations and notes

The Fiber AI MCP server is intended for interactive IDE or chat use, where an agent selects and calls operations. The README recommends the Fiber AI REST API and its SDKs instead for autonomous scripts or production pipelines. V2 and Core require API-key authentication, while V3 requires OAuth. Contact reveal and other data operations may consume organization credits, which can be checked through the credit tool.