Open Explorer MCP Server

Horizon Robotics' hosted Model Context Protocol server for the OpenExplorer (OE) toolchain. It gives a coding agent semantic retrieval over Horizon's indexed codebases (Milvus-backed) and the Horizon documentation library, so an agent can locate an implementation, a configuration entry point or a manual passage before it acts. Advertised by Horizon Robotics in the install instructions of its own OE-Skills repository.

Open docs → Horizon Robotics provider profile

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Provider: Horizon Robotics Type: Documentation link Transport: Host: mcp.oe.horizon.auto

Documentation

https://mcp.oe.horizon.auto/mcp

Documentation link · transport

Tools

list_codebases — List the codebases that are currently indexed in Milvus. The result is determined from indexed collection names. Use this tool before search_code if you need to know valid scope values.
search_code — Search indexed codebases in Milvus using natural language queries. You can optionally provide a search scope. When scope is provided, only the specified indexed collections/codebases will be searched. Use list_codebases first
search_doc — Search Horizon-related document snippets by natural language query, including manuals, guides, references, and relevant passages. Use document library path `oe_doc` by default. Only provide `path` when you need to search a different librar
get_doc — Get the full content overview of a required document by docId, typically after search_doc returns a docId and the user wants the full document.

About MCP

The Model Context Protocol (MCP) is an open protocol Anthropic introduced for connecting LLM-based agents to external tools and data sources. Providers publish MCP servers that expose their API surface as structured, discoverable tools — an MCP-compatible client (Claude Desktop, Cursor, Cline, Continue, etc.) can connect to the server and call its tools without any per-provider integration code.

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Tools for mcp servers

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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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