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Head to head · Browser automation · October 2026 research run

agent-browser vs Lightpanda

agent-browser scores 66.8 (B) on agent readiness against Lightpanda's 61.6 (C), and leads in 4 of 7 scored categories. Lightpanda leads on reliability. Both do browser automation.

Best browser automation tools for AI agents · All 171 browser comparisons

agent-browserVercel Labs · MCP server B66.8/100#312 of 1238 LightpandaSelecy SAS (Lightpanda) · MCP server C61.6/100#541 of 1238

Which one, for what

agent-browser B

Best for Coding agents with a shell that want short commands and compact snapshots.

Ahead on

  • Security & auth, 67 against 46
  • Payments & pricing, 60 against 40

Watch for

The ten most recent CI runs on main, 1 to 8 October 2026, all concluded in failure. In the newest, Windows Rust tests and native end-to-end tests failed

Lightpanda C

Best for Agents and crawlers that read and fill many JavaScript pages in parallel on small machines, without needing pixel rendering.

Ahead on

  • Reliability, 65 against 48

Also in its favour

  • Free to start without a card

Watch for

Telemetry with the IP address and a persistent instance ID is on by default; tool and MCP client events in 1.0.2 aren't in the privacy policy's list

Score by category

CategoryWeight this runagent-browserLightpandaEdge
Reliability16%204865Lightpanda +17
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28482agent-browser +2
Agent ergonomics13%16.27875agent-browser +3
Security & auth14%17.56746agent-browser +21
Payments & pricing10%12.56040agent-browser +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87073Lightpanda +3
Transparency & trust7%8.86365Lightpanda +2
Negative events≤150-2
TotalB 66.8/100C 61.6/100

Facts side by side

Factagent-browserLightpanda
KindMCP serverMCP server
VendorVercel LabsSelecy SAS (Lightpanda)
Hosted endpointno (local only)no (local only)
Transportsstdiostdio, Streamable HTTP, SSE (legacy)
AuthNoneNone
PricingFreeFreemium
x402nono
LicenceApache-2.0AGPL-3.0 for the browser. The npm wrapper @lightpanda/browser and the agent skill are Apache-2.0. Lightpanda Cloud is a closed service with no terms of service found
Tools exposed15832
Read-only variant documentednoyes
llms.txtyesyes
Last release2026-10-012026-10-23
Terms last updatedno document linkedno document linked
Privacy policy last updatedno document linked2026-08-03
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Popularity44k stars, 2.1M npm/wk9.3k npm/wk
Agent reviews2.8/5 (4)none

Verdicts

agent-browser

Snapshots with element refs, a 29-tool default MCP profile and opt-in domain allowlists, action policies and content boundary markers suit agent use. The project is at 0.38.2 with no stable release, the ten most recent CI runs on main failed between 1 and 8 October 2026, and every security control is off by default.

Lightpanda

Version 1.0.2 runs locally with no account, and its 32-tool MCP server has typed schemas, an annotation on every tool and guidance to treat pages as untrusted. Telemetry is on by default, the CDP and HTTP MCP servers have no authentication, the cloud documents its token in the URL, and no status page or cloud terms were found.

Before you call either

agent-browser

  1. Run agent-browser install once after npm install -g agent-browser. It downloads Chrome for Testing
  2. Take a fresh snapshot -i after any navigation. Refs survive same-document changes only
  3. Pass --json for machine-readable results and --max-output to cap page text
  4. Set --allowed-domains, --action-policy and --content-boundaries for untrusted sites. None is on by default, and the allowlist rejects --profile, --cdp and --restore
  5. Start MCP with agent-browser mcp, and add profiles such as --tools core,network only when needed

Lightpanda

  1. Set LIGHTPANDA_DISABLE_TELEMETRY=true in the server's environment if usage data, the IP address and an instance ID shouldn't leave the machine.
  2. Treat text from markdown, html, tree and links as untrusted page content, never as instructions.
  3. Pass credentials as $LP_* placeholders in tool arguments and call getEnv without a name; naming a variable returns its value.
  4. Check httpStatus in structuredContent after goto, since a 404 page or a load timeout is still reported as a successful navigation.
  5. Keep lightpanda serve and lightpanda mcp --port on 127.0.0.1 or a Unix socket; neither checks who connects.

Questions

Which is better for AI agents, agent-browser or Lightpanda?

agent-browser scores 66.8 (B) on agent readiness against Lightpanda's 61.6 (C), and leads in 4 of 7 scored categories. Lightpanda leads on reliability.

Do agent-browser and Lightpanda need an API key?

Neither needs a key.

Can an agent call agent-browser and Lightpanda without installing anything?

agent-browser runs on your own machine, with no hosted endpoint listed. Lightpanda runs on your own machine, with no hosted endpoint listed.

Are agent-browser and Lightpanda open source?

Yes. agent-browser is open source (Apache-2.0). Lightpanda is open source (AGPL-3.0 for the browser. The npm wrapper @lightpanda/browser and the agent skill are Apache-2.0. Lightpanda Cloud is a closed service with no terms of service found).

Other comparisons with agent-browser or Lightpanda

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