MCPJam Build Night · Try a paid MCP server

Try Goldberg, a paid stock predictor

Its two prediction tools are paid. SolvaPay handles sign-in, plans and checkout in the chat.

https://goldberg-demo.solvapay.app/mcp

1 Add the server

In MCPJam, add it under Connect. In Grok Bot, ask it to connect the URL.

2 Sign in with SolvaPay

Approve the sign-in when asked. It creates your Goldberg account.

3 Ask for a prediction

Use the MCPJam client in the Playground with a fast model like Sonnet or Haiku.
Will AAPL be higher in 14 days?
Show me the chart for TSLA over 30 days
Show my account
Goldberg landing page with the Predict. headline, MCP server URL and Connect buttons

Landing page: goldberg-demo.lovable.app

Two hosts

Goldberg in Grok Bot and MCPJam

Grok Bot

Connect the URL, sign in on the connect card and ask.

Grok Bot connect card showing goldberg-demo connectedAAPL 10-day forecast chart from Goldberg

MCPJam

Add the server, switch it on and ask in the Playground.

MCPJam server card for Goldberg demos, connectedMCPJam chat returning a 20-day AAPL forecast

Paying in the chat

Top up without leaving the chat

1 Ask “show my account” to see your balance

Goldberg account widget with plan, credit balance and Add funds button

3 Pay, and the credits are added

Credits added confirmation

2 Pick an amount

Add credits widget with four top-up amounts

The account tool opens this widget. SolvaPay takes the payment through Stripe and adds the credits.

Checkout

In the chat or on a hosted page

Inline in the chat

Hosts that render MCP App widgets, like MCPJam, show checkout in the chat.

Inline Add credits widget in MCPJam

On a hosted page

Text-only hosts, like Grok Bot, return a link to the same checkout on customer.solvapay.com. It expires after 15 minutes.

Hosted credit top-up page on customer.solvapay.com

The account tool handles both, with no extra code.

Account page

Customers manage their own account

Grok Bot links here; MCPJam shows the same view inline.

Balance and top-up

Credit balance with Add funds and auto-recharge.

Active products

Each product and its plan.

Credits and Billing

Credit and billing history.

Hosted Goldberg Inc. account page showing balance and active products

MCPJam Build Night · Sell inside AI

Charge for your MCP server tonight

1 In your project folder, install the SolvaPay skills

$ npx skills add https://solvapay.com

2 Paste one prompt into Claude Code, Cursor or Codex

A · I have a TypeScript MCP server

Use SolvaPay to monetize this MCP server, usage-based with a few free tools, and deploy it to Cloudflare.

Your agent sets prices with you and adds the paywall.

B · I have an OpenAPI spec

Use SolvaPay to build an MCP server from this OpenAPI spec, usage-based with a few free tools, and deploy it to Cloudflare: <url>

Your agent turns each endpoint into a free or paid tool. No spec? Use api.frankfurter.dev/v2/openapi.json

The agent runs npx solvapay@latest init to sign you in and add a sandbox key.

docs.solvapay.com/build/agent-skill

3 Deploy to Cloudflare

Your agent deploys to Cloudflare Workers and returns the URL. No account? It walks you through signup.

Connect the URL and use the MCPJam client with Sonnet or Haiku. Try free and paid tools; at checkout, pay with 4242 4242 4242 4242 and retry.

Want more? · Early access

Next, your agents spend for you

Tonight: a person pays for one MCP

You paid for one MCP server yourself, one checkout at a time.

Next: agents spend from one account

Your agents pay from one SolvaPay account at any inference API or MCP server on SolvaPay.

SolvaPay accountExample

Spent by your agents in October

$96.20

OpperInference API
$84.20 of $250
GoldbergMCP server
$12.00 of $150
research-agent wants $2.40Approve?

One card, kept in the account

Agents pay through it and never see your card.

Limits and a purpose for each agent

Per service, call, day and month, plus a purpose in your words. Anything outside them asks you first.

Every payment on one statement

Payments, approvals and declines appear as they happen.

Open discussion

What’s happening in agentic commerce

Insights from the field with Viggo Stenseth, co-founder and CEO of SolvaPay

Book a discovery call

25 minutes on your use case, no commitment

solvapay.com/book-a-call