NAIF Gravity MCP Server

Start here. Diagnose one sanitized MCP, API, webhook, agent or integration failure for free. Returns bounded evidence plus a suggested repair service, then use quote_repair only if a priced repair is wanted. It never creates a quote, checkout, payment or repair job. It may record bounded operational attribution/telemetry, so readOnlyHint is false; it does not modify the caller system or commercial state.

Use ONLY for the normal repair flow after quote_repair has already returned a quoteId and the caller explicitly chooses that existing quote. This tool does not create a quote: with confirm=true it records acceptance of that quote and creates checkout instructions on exactly one rail offered by it. Do NOT use this tool for owner/platform-preauthorized autonomous purchasing where the agent is allowed to choose one of the four capped micro-services and create its own quote; use request_delegated_purchase for that separate flow. APPLE_PAY returns a human handoff URL for buyer authorization; BASE_USDC and TRON_USDT return payer transfer instructions. It never sends funds, charges the caller, verifies payment or directly starts repair execution. After the buyer completes the required payment action, use verify_repair with the returned checkoutId and the same rail.

Use only after diagnose_issue when the caller wants a priced bounded repair. Creates a new non-binding quote for the selected or automatically matched public service. Repeating the call may create a different quoteId, so it is intentionally non-idempotent. It does not accept the quote, create checkout, send payment or start execution. If the quote is accepted by the caller, pass its quoteId and one offered payment rail to prepare_repair.

Use ONLY for an owner/platform-preauthorized autonomous purchase of one of four supported micro-services under an explicit spending cap. Unlike prepare_repair, this tool does not consume an existing quoteId: it creates its own quote, accepts it, and creates checkout within the delegation. Repeating the call may create a new quote/checkout, so it is intentionally non-idempotent. Do NOT use it when quote_repair already produced a quoteId or for general repair services outside the four listed micro-services; use prepare_repair for an existing repair quote. Supports wallet rails and APPLE_PAY_AUTO. APPLE_PAY_AUTO requires one human Apple Pay approval first; when Tap returns an ACTIVE saved-card payment agreement, later purchases may be charged only within the stored cap. If provider support or authorization is missing, the flow fails closed.

Use after the buyer completes the payment action for a checkout created by prepare_repair. APPLE_PAY verifies the existing Tap charge by checkoutId; BASE_USDC and TRON_USDT require the payer-provided txHash. A confirmed payment returns verified=true, while an already-confirmed Apple Pay checkout may return alreadyVerified=true; an unconfirmed or rejected payment returns error and/or reason without fabricating success. Verification may also return the job attached by the existing payment-completion workflow. This tool never creates or sends a transaction and never charges the buyer.