Base toolbox
https://basetoolbox.cartonpliant.workers.dev/.well-known/mcp.json Our Verdict
A human read this entry. That is the one thing true of everything on the list. Beyond that: the endpoint answered an x402 request when we knocked it, on the date shown. That date is the claim — not a word, a date. None of it is a delivery test. We have not paid for this and graded what came back, so read it as "we checked what is stated above," never as "this is worth the money."
★ Featured — October 2026. Checks a Base swap, a transfer, or your leftover token allowances before you sign — preflight as a tool call, on the chain most of this shelf settles on. The constants route is free, so you can see what it reads before you pay for anything.
Remote MCP for Base before you sign: Uniswap v3 swap preflight, leftover allowances, tx explain, transfer check ($0.10 USDC), plus $0.01 price/gas/ENS. GET /v1/constants free. ([MCP](https://basetoolbox.cartonpliant.workers.dev/mcp)) ([OpenAPI](https://basetoolbox.cartonpliant.workers.dev/openapi.json)) ([Skill](https://clawhub.ai/cartonpliant/skills/basetoolbox))
Rater Grades
No independent rater grade published for this entry yet. What we publish is above: who read it, and whether its endpoint answered on a date we can show. Neither is a measurement of what it returns after payment.
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