WebRTC MCP Server

Code navigation (9)

Search, read, and traverse the libwebrtc source tree — regex, AST symbols, references, and include graphs.

search_codeSearch Code

Regex search across the WebRTC codebase (ripgrep). Returns matching lines with file paths and line numbers.

Parameter	Type	Required	Default	Description
`pattern`	string	required	—	Regex pattern to search for.
`glob`	string	optional	—	File glob filter, e.g. ".h", ".cc", "api/*/.h".
`case_sensitive`	boolean	optional	`true`	Case-sensitive search.
`max_results`	number	optional	`50`	Max results to return.
`version`	string	optional	—	libwebrtc version, e.g. "M131". Also accepts browser overlays "F133" (Firefox) / "S26" (Safari). Default: latest installed.

find_symbolFind Symbol

Find declarations of classes, structs, enums, functions, methods, fields, typedefs, or macros via the tree-sitter AST index. Returns location, signature, and qualified name.

Parameter	Type	Required	Default	Description
`name`	string	required	—	Symbol name to search for, e.g. PeerConnectionInterface.
`kind`	enum["class","struct","enum","function","method","field","typedef","macro","namespace","any"]	optional	`any`	Restrict to a symbol kind.
`scope`	string	optional	—	Directory prefix to limit search, e.g. "api/" or "modules/audio_coding/".
`limit`	number	optional	`30`	Max results (max 200).
`version`	string	optional	—	libwebrtc version, e.g. "M131". Also accepts browser overlays "F133" (Firefox) / "S26" (Safari). Default: latest installed.

find_referencesFind References

AST-backed search for identifier references — type usages, qualified names, call targets — filtered by enclosing scope and file path. Skips comments and strings.

Parameter	Type	Required	Default	Description
`symbol`	string	required	—	Symbol name to find references for.
`kind`	enum["all","call","type","qualified","base_class"]	optional	`all`	Restrict to a reference kind.
`scope`	string	optional	—	Enclosing scope prefix, e.g. "webrtc::PeerConnection" or "webrtc::".
`file_glob`	string	optional	—	SQL LIKE pattern for file path, e.g. "api/%" or "%/test/%".
`include_tests`	boolean	optional	`false`	Include test/mock/fake files.
`limit`	number	optional	`50`	Max results (max 500).
`version`	string	optional	—	libwebrtc version, e.g. "M131". Also accepts browser overlays "F133" (Firefox) / "S26" (Safari). Default: latest installed.

read_fileRead File

Read a file from the WebRTC source tree (paths relative to the WebRTC root), optionally a line range.

Parameter	Type	Required	Default	Description
`path`	string	required	—	File path relative to WebRTC root, e.g. "api/peer_connection_interface.h".
`start_line`	number	optional	—	Start line (1-based, inclusive).
`end_line`	number	optional	—	End line (1-based, inclusive).
`version`	string	optional	—	libwebrtc version, e.g. "M131". Also accepts browser overlays "F133" (Firefox) / "S26" (Safari). Default: latest installed.

list_directoryList Directory

List files and subdirectories in a directory of the WebRTC source tree.

Parameter	Type	Required	Default	Description
`path`	string	optional	`(root)`	Directory path relative to WebRTC root.
`recursive`	boolean	optional	`false`	List recursively (1 level deep only).
`version`	string	optional	—	libwebrtc version, e.g. "M131". Also accepts browser overlays "F133" (Firefox) / "S26" (Safari). Default: latest installed.

file_overviewFile Overview

AST-backed hierarchical outline of a C++ file: namespaces, classes/structs, enums, methods, fields, typedefs, and macros, ordered by source line.

Parameter	Type	Required	Default	Description
`path`	string	required	—	File path relative to WebRTC root, e.g. "api/jsep.h".
`include_members`	boolean	optional	`true`	Include class members.
`include_macros`	boolean	optional	`true`	Include macro definitions.
`version`	string	optional	—	libwebrtc version, e.g. "M131". Also accepts browser overlays "F133" (Firefox) / "S26" (Safari). Default: latest installed.

class_hierarchyClass Hierarchy

AST-backed lookup of parent (base) and child (derived) classes for a class. Accepts a simple or qualified name.

Parameter	Type	Required	Default	Description
`name`	string	required	—	Class name or qualified name, e.g. webrtc::PeerConnectionInterface.
`direction`	enum["parents","children","both"]	optional	`both`	Traversal direction.
`limit`	number	optional	`100`	Max results (max 500).
`version`	string	optional	—	libwebrtc version, e.g. "M131". Also accepts browser overlays "F133" (Firefox) / "S26" (Safari). Default: latest installed.

class_membersClass Members

List methods, fields, nested types, and enum values of a specific class (qualified name preferred).

Parameter	Type	Required	Default	Description
`class_name`	string	required	—	Qualified name, e.g. "webrtc::SessionDescriptionInterface", or a simple name.
`kind`	enum["all","method","field","enum_value","typedef"]	optional	`all`	Restrict to a member kind.
`include_declarations`	boolean	optional	`true`	Include forward-only declarations along with definitions.
`limit`	number	optional	`200`	Max results (max 500).
`version`	string	optional	—	libwebrtc version, e.g. "M131". Also accepts browser overlays "F133" (Firefox) / "S26" (Safari). Default: latest installed.

include_graphInclude Graph

Trace #include chains for a file: what it includes (forward) and what files include it (reverse).

Parameter	Type	Required	Default	Description
`path`	string	required	—	File path relative to WebRTC root, e.g. "api/jsep.h".
`direction`	enum["includes","included_by","both"]	optional	`both`	Direction of traversal.
`max_depth`	number	optional	`1`	Depth of traversal (1 = direct only, max 3).
`version`	string	optional	—	libwebrtc version, e.g. "M131". Also accepts browser overlays "F133" (Firefox) / "S26" (Safari). Default: latest installed.