Observed arrival · 2026-10-31

Turnpike puts a toll booth in front of APIs and MCP tools

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Editorial interest 78/100 Selection signal · not a rating of the site

A tool for attaching per-call USDC payments to an API endpoint or remote MCP server.

Landing page captured for the 2026-10-31 issue.

For: API and MCP tool operators charging per call
Worth noticing: MCP discovery calls (tools/list) stay free; only tools/call triggers the toll.

Field notes

Operators enter an HTTPS API or remote MCP endpoint, optionally add an upstream secret, then set a per-call amount and payout wallet. The link token seals those settings with AES-256-GCM; caller cookies and authentication headers are stripped before forwarding. MCP initialize, ping, notifications, and tools/list are free, while tools/call is tolled. The page labels the deployment testnet and says the live-payment board resets on redeploy.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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