Developer previewBROWSER MCP / v0.1

The web.
At your
agent’s pace.

A compact browser MCP that keeps sessions warm, batches the busywork, and checks what actually happened.

Make your first call ↗▷Watch a real run

No model API key required/MIT licensed

One session. A clear path.MCP → CHROMIUM

•••⌕ localhost / stays01

STAYS /LOCAL DEMO

Somewhere worth staying.

e1DestinationChoose a city

e2Nights1

Free cancellatione3

Find a stay ↗e4

tab_act4 actions / 1 call

01fill e1 "Lisbon"—

02select e2 "3"—

03check e3 true—

04click e4—

Illustrative replay of the included local fixture. Not a live browser connection.

A standard protocol.
Your preferred agent.

CodexClaude CodeCursor{ MCP }

Local stdio configuration

LESS CEREMONY. MORE CONTROL.

One loop.
Nothing hand-wavy.

Your agent stays in charge. Tablaze handles the browser mechanics and returns evidence it can use.

01 / OBSERVE

e1 textbox Destinatione2 combobox Nightse4 button Find a staysnapshot_id: …

Know what’s on the page.

Compact observations expose useful controls with references and a snapshot revision. Ask for changes instead of another full dump.

tab_snapshot

02 / ACT

fill→select→clickone ordered batch

Move through the busywork.

Keep the browser running and submit multiple actions together. If a target change is detected or a step fails, stop and report what already ran.

tab_act

03 / VERIFY

✓ URL✓ visible text✓ field value✓ element count

Check the result, explicitly.

A successful click is only a successful click. Check URLs, text, values, and visibility against the outcome you actually wanted.

tab_verify

↳Batches run in order and stop on error. They are not transactions; completed actions are not rolled back.

SMALL SURFACE. USEFUL PRIMITIVES.

Eight tools. Room to build.

Navigate, observe, act, extract, verify, capture, list, close. Bring your own reasoning model. The browser layer doesn’t require another one.

tab_opentab_snapshottab_acttab_extracttab_verifytab_capturetab_listtab_close

SHOW THE WORK.

Speed deserves
a measurement.

A local, reproducible fixture. Cold launch and warm operations measured separately. No invented competitor scorecard.

LOCAL CHROMIUM / HOTEL SEARCH FIXTUREPreparing measurement report

Cold browser + first page—median wall-clock time

Warm snapshot—median wall-clock time

Action batch—median wall-clock time

Verified runs—this fixture, this environment

Five local fixture runs, calling the browser engine directly. Excludes MCP transport, model inference, and internet websites. Run the command below from the source directory. These results are not a general reliability claim or a competitor ranking.

$npm run bench

START WITH THE FIRST CALL.

Give your agent
the keys to a tab.

Node.js 20+ and Chromium. Start in an isolated browser, or explicitly connect a Chrome session you choose.

Local preview instructions. A public npm release is not available yet.

After downloading the preview package

mkdir tablaze-demo
cd tablaze-demo
npm install /path/to/tablaze-0.1.0.tgz
npx tablaze setup
npx tablaze doctor

Use the installed executable’s absolute path

codex mcp add tablaze -- \
  /absolute/path/to/tablaze-demo/node_modules/.bin/tablaze

For clients that use mcpServers configuration

{
  "mcpServers": {
    "tablaze": {
      "command": "/absolute/path/to/tablaze-demo/node_modules/.bin/tablaze"
    }
  }
}

STDIO · LOCAL · NO MODEL KEYA few useful details ↘

CLEAR EXPECTATIONS.

Before you build.

Does this use Jev or another model?

The core browser tools make no model API calls. Your MCP client supplies the reasoning. A Jev planner is a possible optional integration, not a shipped requirement or a feature claimed in this preview.

Can I use my existing Chrome login?

Yes, through an explicit CDP connection. The default launches an isolated browser. Attached mode shares that Chrome profile’s identity, and Tablaze closes only the tabs it owns.

What happens if the page changes?

Actions include a snapshot revision and element reference. Detected stale snapshots or changed targets are rejected; re-observe before retrying. Validation and input are not atomic, so a short race remains. These checks are not a security sandbox.

What does this preview not promise?

It doesn’t promise autonomous success on every website, the fastest result among all products, or rollback of browser actions. Uploads, downloads, closed shadow roots, and complex popup workflows need additional support.

BROWSER ACTIONS. LESS WAITING.

Make the next move.

Try Tablaze ↗

The web.At youragent’s pace.

Somewhere worth staying.

One loop.Nothing hand-wavy.