Leapfrog
Run many isolated browser sessions in parallel so agents can scrape, test flows, and compare pages without serial tab juggling.
Overview
Leapfrog is a MCP server for the Build phase that provides 37 browser tools across up to 15 parallel isolated sessions for agent-driven web automation.
What is this MCP server?
- 37 MCP browser automation tools
- Up to 15 parallel isolated browser sessions
- Multi-session architecture with stealth-oriented behavior
- Self-improvement features described in upstream README
- npm stdio package leapfrog-mcp v0.7.4
- 37 MCP tools
- Version 0.7.4
What problem does it solve?
Single-tab browser MCPs bottleneck solo builders who need parallel, isolated sessions for research, prototypes, and integration checks.
Who is it for?
Builders automating competitive research, multi-path UI checks, or agent-led staging verification on one dev machine.
Skip if: Production-scale crawling fleets, strict compliance environments banning stealth browsers, or teams that only need static HTTP APIs.
What do I get? / Deliverables
After install, your agent can spin multiple isolated browsers and run a broad toolset for concurrent web tasks from the coding session.
- 37-tool browser automation surface for agents
- Up to 15 concurrent isolated browser sessions
- Agent-driven web verification without manual tab switching
Recommended MCP Servers
Journey fit
Primary shelf is build integrations because browser MCP is how agents touch the live web during implementation and QA-style checks. Leapfrog is a browser automation bridge (37 tools), not app backend code or production error monitoring.
How it compares
Parallel multi-session browser MCP, not macOS desktop automation or a static repo map server.
Common Questions / FAQ
Who is Leapfrog for?
Solo developers and agent users who need parallel, isolated browser automation from Claude Code or Cursor.
When should I use Leapfrog?
Use during prototype checks, integration testing against live URLs, or distribution smoke tests—not for in-repo refactors alone.
How do I add Leapfrog to my agent?
Add leapfrog-mcp via npm stdio in your MCP configuration and ensure the host machine can run multiple browser instances.