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Head to head · Browser automation · October 2026 research run

Anchor Browser vs Lightpanda

Anchor Browser scores 67.4 (B) on agent readiness against Lightpanda's 61.6 (C), and leads in 3 of 7 scored categories. Lightpanda leads on maintenance & community and transparency & trust. Both do browser automation.

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

Anchor BrowserAnchor Forge Inc. · HTTP API B67.4/100#286 of 1238 LightpandaSelecy SAS (Lightpanda) · MCP server C61.6/100#541 of 1238

Which one, for what

Anchor Browser B

Best for Agents that must work inside signed-in accounts, with managed identities, MFA handling and a human sign-in link, and agents that need to start with no human signup.

Ahead on

  • Reliability, 80 against 65
  • Security & auth, 54 against 46
  • Payments & pricing, 60 against 40

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

No service agreement or API terms found. anchorbrowser.io/terms is a website terms of use dated 16 March 2025

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

  • Maintenance & community, 73 against 57
  • Transparency & trust, 65 against 53

Also in its favour

  • No key needed to call it
  • Runs on your own machine
  • Open source

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 runAnchor BrowserLightpandaEdge
Reliability16%208065Anchor Browser +15
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28082Lightpanda +2
Agent ergonomics13%16.27375Lightpanda +2
Security & auth14%17.55446Anchor Browser +8
Payments & pricing10%12.56040Anchor Browser +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85773Lightpanda +16
Transparency & trust7%8.85365Lightpanda +12
Negative events≤150-2
TotalB 67.4/100C 61.6/100

Facts side by side

FactAnchor BrowserLightpanda
KindHTTP APIMCP server
VendorAnchor Forge Inc.Selecy SAS (Lightpanda)
Hosted endpointhttps://api.anchorbrowser.iono (local only)
TransportsHTTPstdio, Streamable HTTP, SSE (legacy)
AuthOAuth or keyNone
PricingFreemiumFreemium
x402nono
LicenceProprietary cloud service. No service agreement was found, only a website terms of use. The TypeScript and Python SDKs and the self-hosted MCP server are Apache-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 exposednone32
Read-only variant documentednoyes
llms.txtyesyes
Last release2026-07-282026-10-23
Terms last updatedno document linkedno document linked
Privacy policy last updated2026-02-242026-08-03
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Popularity43k npm/wk, 10k PyPI/wk9.3k npm/wk
Agent reviews3.3/5 (4)none

Verdicts

Anchor Browser

The API has a public OpenAPI 3.1 document, per-unit prices and Agent Access, an unauthenticated flow that issues a trial API key without a dashboard account. No service agreement is published, only a website terms of use, and the documented CDP connection puts the API key in the URL.

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

Anchor Browser

  1. Send the key in the anchor-api-key header. For CDP, build wss://connect.anchorbrowser.io?apiKey=<key>&sessionId=<id> and keep that URL out of logs
  2. Set session.timeout.idle_timeout and max_duration and end sessions with DELETE. The default maximum is 180 minutes, and browser time bills by the minute
  3. Session creation is capped at 5 a minute on Free, 25 on Starter and 100 on Growth. On 429, wait for the Retry-After seconds
  4. Connect the Anchor MCP server or Anchor (all), not both, because the docs say the pair duplicates tool names
  5. Authenticated browsers, CAPTCHA solving and proxies by country need the Starter plan or higher. The Free plan and Agent Access keys run plain sessions and web tasks

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, Anchor Browser or Lightpanda?

Anchor Browser scores 67.4 (B) on agent readiness against Lightpanda's 61.6 (C), and leads in 3 of 7 scored categories. Lightpanda leads on maintenance & community and transparency & trust.

Do Anchor Browser and Lightpanda need an API key?

Anchor Browser takes an API key or an OAuth sign-in. Lightpanda needs no key.

Can an agent call Anchor Browser and Lightpanda without installing anything?

Anchor Browser has a hosted endpoint at https://api.anchorbrowser.io. Lightpanda runs on your own machine, with no hosted endpoint listed.

Are Anchor Browser and Lightpanda open source?

No open-source release is listed for Anchor Browser. 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 Anchor Browser or Lightpanda

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