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Head to head · Browser automation · October 2026 research run

Anchor Browser vs Hyperbrowser

Anchor Browser and Hyperbrowser score within a point of each other on agent readiness, 67.3 (B) and 66.9 (B). Hyperbrowser leads on payments & pricing, maintenance & community and transparency & trust. Both do browser automation. Hyperbrowser accepts x402. Anchor Browser doesn't.

Anchor BrowserAnchor Forge Inc. · HTTP API B67.3/100#211 of 722 HyperbrowserS2 Labs Inc. · HTTP API B66.9/100#223 of 722

Which one, for what

Anchor Browser B

Good 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
  • Schema & documentation, 80 against 68
  • Agent ergonomics, 73 against 67
  • Security & auth, 54 against 44

Watch for

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

Hyperbrowser B

Good for Agents that need a cloud browser by the minute plus cheap fetch and search, especially wallet-holding agents with no account.

Ahead on

  • Payments & pricing, 94 against 60
  • Maintenance & community, 79 against 57
  • Transparency & trust, 64 against 51

Also in its favour

  • An agent can pay per call over x402, with no account
  • Runs on your own machine

Watch for

The official MCP server's last npm release is 1.0.25 of 13 April 2025, and it isn't in the official MCP registry

Score by category

CategoryWeight this runAnchor BrowserHyperbrowserEdge
Reliability16%208065Anchor Browser +15
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28068Anchor Browser +12
Agent ergonomics13%16.27367Anchor Browser +6
Security & auth14%17.55444Anchor Browser +10
Payments & pricing10%12.56094Hyperbrowser +34
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85779Hyperbrowser +22
Transparency & trust7%8.85164Hyperbrowser +13
Negative events≤1500
Total67.3 · B66.9 · B

Facts side by side

FactAnchor BrowserHyperbrowser
KindHTTP APIHTTP API
VendorAnchor Forge Inc.S2 Labs Inc.
Hosted endpointhttps://api.anchorbrowser.iohttps://api.hyperbrowser.ai
TransportsHTTPHTTP, stdio
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402noyes
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-2.0Proprietary service under S2 Labs' terms of service. The Node and Python SDKs and the MCP server are MIT, and HyperAgent is AGPL-3.0
Read-only variant documentednono
llms.txtyesyes
Last release2026-07-282026-10-08
Terms last updatedno document linkedcouldn't be read
Privacy policy last updated2026-02-24couldn't be read
Customer content may train modelscouldn't be read
Terms restrict automated accesscouldn't be read
Terms restrict benchmarkingcouldn't be read
Terms or service can change without noticecouldn't be read
Arbitration or class-action waivercouldn't be read
Popularity43k npm/wk, 10k PyPI/wk89k npm/wk, 73k PyPI/wk

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.

Hyperbrowser

Sessions, Fetch and Search can be bought by x402 at api.hyperbrowser.ai with USDC on Base or Solana and no account, and unit prices are public. The official MCP server was last published in April 2025, no request rate limits or SLA are published, and the privacy notice covers only the website.

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

Hyperbrowser

  1. With a wallet and no key, POST to https://api.hyperbrowser.ai/x402/session and read the PAYMENT-REQUIRED header. Sessions are prepaid for 5 to 60 minutes with no refund
  2. Save the x402 creation response. It holds the only copy of the connection tokens, and managementToken is what stops the session
  3. Stop sessions explicitly in cleanup code. Browser time bills per second until the timeout
  4. Use Fetch at $0.001 a page for static pages and keep browser sessions for pages that need interaction
  5. Add &keepAlive=true to wsEndpoint to reconnect after a CDP disconnect. Treat that URL as a secret because it carries the session token

Questions

Which is better for AI agents, Anchor Browser or Hyperbrowser?

Anchor Browser and Hyperbrowser score within a point of each other on agent readiness, 67.3 (B) and 66.9 (B). Hyperbrowser leads on payments & pricing, maintenance & community and transparency & trust.

Do Anchor Browser and Hyperbrowser need an API key?

Both take an API key or an OAuth sign-in. An agent can also pay Hyperbrowser per call over x402, with no account.

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

Yes. Anchor Browser has a hosted endpoint at https://api.anchorbrowser.io and Hyperbrowser at https://api.hyperbrowser.ai.

Other comparisons with Anchor Browser or Hyperbrowser

Machine-readable

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