Browserbase
Last tested 2026-10-22
Score 75/100 · Last tested 2026-10-22 · Version tested 2.4.3 · Package @browserbasehq/mcp-server-browserbase · Repo browserbase/mcp-server-browserbase
Summary: Browserbase completed an MCP handshake without credentials and exposed 9 tools; it is deprecated or archived, so prefer a maintained alternative.
Test results
| Test | Result | Points | Evidence |
|---|---|---|---|
| install | pass | 20 | npm install @browserbasehq/mcp-server-browserbase (Node 20, Linux) succeeded in 6s. |
| handshake | pass | 30 | MCP initialize + tools/list over stdio succeeded with no credentials; 9 tools listed in 5.2s. |
| maintenance | fail | 0 | Deprecated on npm: This package has moved to @browserbasehq/mcp; GitHub repo browserbase/mcp-server-browserbase is archived. |
| docs | pass | 15 | README over 3,000 chars; install instructions present; mcpServers config example present. Automated check of the package's own README (README shipped in npm package). |
| license | pass | 10 | Apache-2.0 (OSI-approved). |
Local-model readiness
Schema context cost: ~1,052 tokens for 9 tools (4,980 bytes) · about 13% of an 8k context. Method: tiktoken cl100k_base over compact JSON of name+description+inputSchema (approximate).
Small-model friendly (schema heuristic, not a model result): high.
Small-model task runs: Not yet tested.
Functional tasks (0/2 passed, tested 2026-10-22)
| Task | Tool | Result | Evidence |
|---|---|---|---|
| navigate to https://example.com/ | browserbase_stagehand_navigate | fail | [{"type":"text","text":"Error: Failed to navigate: No session found for ID: browserbase_session_a8e9ec4f-e7a8-45a8-a22d-5ff75facc603_1792649733114_ec108a24-eed9 |
| read page title (expect "Example Domain") | browserbase_stagehand_navigate | fail | [{"type":"text","text":"Error: Failed to navigate: No session found for ID: browserbase_session_a8e9ec4f-e7a8-45a8-a22d-5ff75facc603_1792649733114_ec108a24-eed9 |
Not tested
We did not test behavior with real credentials, security, or performance under load. These are planned; see methodology.
Tools listed
browserbase_session_create, browserbase_session_close, browserbase_stagehand_navigate, browserbase_stagehand_act, browserbase_stagehand_extract, browserbase_stagehand_observe, browserbase_screenshot, browserbase_stagehand_get_url, browserbase_stagehand_agent
Config used in our test
{
"mcpServers": {
"browserbase": {
"command": "npx",
"args": [
"-y",
"@browserbasehq/mcp-server-browserbase"
]
}
}
}FAQ
Is Browserbase deprecated?
Yes. @browserbasehq/mcp-server-browserbase is deprecated on npm and its GitHub repo is archived (as of 2026-10-22). npm says: "This package has moved to @browserbasehq/mcp"
What replaces Browserbase?
@browserbasehq/mcp, according to the npm deprecation message.
Does Browserbase need an API key?
No. It completed an MCP handshake with no credentials and listed 9 tools.
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