Vehicle intelligence for agents

Know the most your agent should pay for a car.

AutoArb gives Codex, Claude Code, and other MCP clients current listings, a maximum acquisition price, and the evidence behind the number.

Start with Pro Read the agent setup

MCP bridge · CLI · portable skill · revocable API keys

on Product Hunt

LIVE DEAL SIGNAL EVIDENCE ATTACHED

Source listing2021 Ford Bronco14 comps · 2 unknowns

All-in estimate$24,870fees · transport · repair

Maximum acquisition$29,450$4,180 expected headroom

3 agent tools1,000 searches per period5,000 detail reads per period$0 automatic bids

What the agent receives

The market, the ceiling, and the gaps in the evidence.

A score alone is too easy to trust. AutoArb returns the figures and source material needed to check the recommendation.

Find vehicles across the live directory

Filter by vehicle, source, year, mileage, score, or asking price. Your agent searches the same current inventory used by AutoArb.

Price

Put a ceiling on every candidate

Each result includes expected profit, maximum acquisition price, maximum bid, and the costs that produced those figures.

Check

See what could change the answer

The source link, snapshot time, evidence, and missing fields stay attached to the recommendation. An unpublished VIN remains unknown.

the whole product, in one line

Bid$10,000

Repair (est.)$4,200

Fees + transport$2,037

All-in$16,237

Market (22 comps)$28,400

Headroom$12,163

The headroom disappears when any cost rises. Every listing carries its own version of this calculation.

A decision you can audit

One number tells the agent when to walk away.

AutoArb subtracts target profit, fees, transport, repairs, and title costs from the supported market value. The result is the maximum acquisition price.

See the valuation method

Setup

Connect once. Ask from the tool you already use.

The API key stays in your local MCP or CLI environment. AutoArb stores only its hash and lets you revoke the key from Settings.

Activate Pro

Create an account, subscribe through Stripe, and generate a revocable API key in Settings.

Choose MCP or CLI

Connect the local MCP bridge to Codex or Claude Code, or query AutoArb directly from the terminal.

Ask about a vehicle

Your agent searches, opens the candidates it may recommend, and reports the ceiling with the unknowns.

Pro plan

Built for agent use.

One subscription covers the live product, MCP, CLI, and agent API. Stripe handles checkout, invoices, payment methods, and cancellation.

$29.99/monthPRO

Live directory, scores, and evidence dossiers
1,000 agent searches per 30-day period
5,000 listing and directory reads per 30-day period
Revocable API keys and Stripe billing portal

Create an account

Questions

Agent access, in plain language.

It can search scored listings, open one listing with its economics and evidence, and check directory coverage and freshness. The CLI exposes the same three operations.

Yes. Both can run the included stdio MCP bridge locally. Any MCP client that supports a local stdio server can use the same bridge.

No. AutoArb supplies research and arithmetic. It has no bidding or purchasing pathway.

The response names the missing field. AutoArb does not fill in VINs, condition, title status, or comparable sales that the source did not provide.

The live corpus and agent API require an active Stripe Pro subscription. API keys are hashed, revocable, and checked against monthly query and read limits in Postgres.

AutoArb for agents

Put a price ceiling inside your next vehicle search.

Connect your agent