MCP connectors · pay per use

Plug your business data into Claude.

OpenJack is a marketplace of hosted MCP connectors. Add one to Claude in a minute, link your own account on the platform, and ask questions in plain language. You pay per tool call from a prepaid balance in euros. No subscriptions, no seats.

Browse connectorsCreate an account
Read-onlyNo logs, no cacheOpen source (MIT)VAT invoices
20 questions a day ≈ 32 tool calls€0.00
Estimated monthly cost at a typical €0.03 per callOnly what you use
How much did each driver make on Bolt in October?
October, company Lisbon Fleet: €12,480.50 gross across 1,214 rides.
DriverRidesGrossCash
Ana S.431€4,412.00€1,120.50
Bruno C.402€4,105.50€980.00
Carla M.381€3,963.00€1,301.00
And on Uber, how much was Carla paid?
October payments report: €1,484.25 paid out, of which €500.00 in cash and €984.25 transferred to her bank.

Connectors

Hosted, read-only, open source.

Each connector talks to a platform's official API with credentials you control. Nothing is written back.

availableFleet & mobility

Bolt Fleet Connector

Ask Claude about your Bolt fleet: revenue per driver, cash collected, who is online.

8 tools · from €0.02 per call

availableFleet & mobility

Uber Fleet Connector

Payouts per driver, earnings per vehicle and real-time payments from Uber, inside Claude.

11 tools · from €0.02 per call

All connectors

How it works

Three steps. Nothing to install.

Create an account and add credits

Sign in with your email, no password. Top up in euros whenever you like: credits never expire and there is no minimum commitment.

Add the connector in Claude

Settings → Connectors → Add custom connector, paste the connector's address. Claude opens the connect page, where you enter your OpenJack connection key and the platform credentials. They are validated on the spot and stored encrypted.

Ask

Every tool call is metered: typically €0.02, up to €0.10 for heavy aggregations. Works on claude.ai, the Claude apps and Claude Code. ChatGPT support is next.

Pricing

€0.02 / call

Typical tool call. Listing, lookups, single-page reads.

Heavy calls

€0.10 / call

Aggregations that fetch many pages or generate reports.

Credits

€10+

Top up €10, €25, €50, €100. VAT invoice on every top-up. No expiry.

Full price list

FAQ

Before you sign up.

Where are my platform credentials kept?

In an encrypted vault tied to the OAuth token Claude receives when you connect. Only that token can unwrap them; we cannot read them. Disconnecting the connector in Claude revokes the token.

What do the connectors log or keep?

Nothing. The hosted connectors run with logging disabled, keep no cache and store none of the data they pass from the platform to Claude. The only record is a usage line on your account: which tool was called, when, and what it cost.

What happens when I run out of credits?

The tool call returns a clear message asking you to top up, and nothing is charged. Your connections stay in place.

Are the connectors official products of the platforms?

No. They are independent, open-source connectors by Spawncore that use each platform's official API with the credentials the platform gives you.

Can I run a connector myself?

Yes. Every connector is MIT-licensed and runs locally or on your own Cloudflare account without OpenJack credits. The hosted version is what you pay for.

Does it work with ChatGPT?

Today the hosted connectors are for Claude (claude.ai, the apps and Claude Code). ChatGPT support is next on the roadmap.

Need a connector we don't have?

Tell us which platform

Accounting, invoicing, telematics, CRMs. We build connectors on request.

Request a connector