Agentic Index
Browserbase vs Island (2026)
Both provide browsers for agents and they answer opposite questions, at 12 and 11 of 14. That verdict is the Agentic Index coverage score, graded from each vendor's own published materials.
Browserbase is developer infrastructure: hosted browsers, the Stagehand software development kit and MCP integration, from twenty dollars a month. Island is the enterprise browser as an agent control plane, with per agent permissions, human approval gates, real time data loss prevention on MCP data flows, per invocation audit logs to your security systems and model agnostic provider choice. Browserbase answers how agents browse; Island answers whether your security team will allow it.
This comparison is published by Agentic Index, an independent agentic AI vendor research platform. Browserbase and Island are each graded against the same 14 capability Agentic Index taxonomy, from the vendor's own public materials under the Agentic Index verification standard, alongside 969 researched vendors. No vendor pays for placement and no vendor has reviewed this page. How this evidence is graded
Choose Browserbase if
- Documented coverage is slightly broader and you need browser infrastructure to build on.
- Twenty dollars a month with a free tier is the adoption path.
- Your agents run in your own infrastructure and governance is handled elsewhere.
Choose Island if
- Per agent permissions and approval gates are what your security review will require.
- Data loss prevention on MCP flows and per invocation audit logs are hard requirements.
- The enterprise browser is already your endpoint strategy.
| At a glance | Browserbase | Island |
|---|---|---|
| Category | Browser / computer-use agent | Browser / computer-use agent |
| Entry price | From $20/mo · free tier | Contact sales |
| Free / trial | Free (no card required) | Not published |
| Pricing confidence | public partial | contact only |
| Feature | B Browserbase |
I Island |
|---|---|---|
| Action & orchestration | ||
|
Integrations & Tool Calling Ability to connect agents to real systems through native integrations, OAuth-authenticated actions, custom tools, APIs, webhooks, or MCP-compatible tools. |
Full / Explicit | Full / Explicit |
|
Workflow Orchestration Ability to sequence, branch, retry, route, and combine deterministic workflow nodes with autonomous agent steps. |
Full / Explicit | Full / Explicit |
|
Triggers & Channel Coverage How agents wake up and where they work: schedules, webhooks, message events, CRM events, inbox events, chat, email, voice, and collaboration tools. |
Partial | Partial |
| Knowledge & context | ||
|
Knowledge Grounding & RAG Ability to ground agent behavior in company data through document ingestion, retrieval, external knowledge APIs, semantic search, or RAG layers. |
No / Not documented | Full / Explicit |
|
Memory & State Persistence Ability to persist context across a run, conversation, workflow, user, team, or longer-term memory layer. |
Partial | No / Not documented |
| Control & trust | ||
|
Human Oversight & Guardrails Approval steps, consent checkpoints, escalation rules, structured guardrails, policy constraints, and pause/resume controls. |
Full / Explicit | Full / Explicit |
|
Security, Identity & Governance RBAC, SSO, auditability, encryption, least-privilege tool access, compliance posture, and data handling policy. |
Full / Explicit | Full / Explicit |
|
Observability & Auditability Traces, logs, execution histories, metrics, audit events, and debugging detail for production agent behavior. |
Full / Explicit | Full / Explicit |
|
Deployment & Data Residency Deployment modes and options, including SaaS, dedicated cloud, VPC, on-prem, hybrid, local runtime, and self-hosting. |
Full / Explicit | Partial |
| Solution readiness | ||
|
Prebuilt Agents, Templates & Packs Ready-made workflows, packaged employees, templates, blueprints, industry solutions, and role-specific agents that reduce time-to-value. |
Full / Explicit | Full / Explicit |
| Platform extensibility | ||
|
Model Flexibility & Routing Ability to work across multiple foundation models, route tasks to different models, or let buyers bring their own providers and keys. |
Full / Explicit | Full / Explicit |
|
APIs, SDKs & MCP Extensibility Composability layer: stable APIs, SDKs, MCP tool consumption/serving, custom tools, and integration into internal systems. |
Full / Explicit | Full / Explicit |
|
Testing, Debugging & Optimization Testing, debugging, scoring, retries, fallbacks, quality gates, and optimization loops for improving agent workflows before and after deployment. |
Full / Explicit | No / Not documented |
| Specialist automation | ||
|
Browser & Computer Use Browser, desktop, or remote/local computer control for workflows that cannot be handled through stable APIs alone. |
Full / Explicit | Full / Explicit |
Pricing snapshot
Sourced from the Index pricing dataset · open each vendor's profile for full detail.
| Pricing | B Browserbase |
I Island |
|---|---|---|
|
Entry price Lowest public entry point |
From $20/mo · free tier | Contact sales |
|
Pricing confidence How public the numbers are |
Public, partial | Contact only |
|
Billing Primary billing axis |
hybrid | enterprise contract |
|
Variable cost Workload / overage exposure |
High variable cost | Medium variable cost |
|
Free tier / trial Try before you buy |
Free tier
|
No free tier
|
|
Buying motion Self-serve vs sales call |
Mixed | Sales call |
More comparisons with Browserbase or Island
Other matchups in browser and computer-use agents
Not the pairing you were after? These compare a different set of browser and computer-use agents on the same 14 capabilities.