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NAIF Gravity

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Free MCP/API diagnostics. Micro Tools V2: free preview, $1 JSON check, $2 API shape, $3 normalize.

v1.7.1 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality79good
Trust96of 100
Uptime, 30 days93%
Latency p50631 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "naif-fixgraph": {
      "type": "http",
      "url": "https://naifgravity.com/mcp"
    }
  }
}
claude mcp add --transport http naif-fixgraph https://naifgravity.com/mcp
[mcp_servers.naif-fixgraph]
url = "https://naifgravity.com/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "naif-fixgraph": {
      "type": "remote",
      "url": "https://naifgravity.com/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "naif-fixgraph": {
      "type": "http",
      "url": "https://naifgravity.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=naif-fixgraph&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbmFpZmdyYXZpdHkuY29tL21jcCJ9"
}
{
  "servers": {
    "naif-fixgraph": {
      "type": "http",
      "url": "https://naifgravity.com/mcp"
    }
  }
}
{
  "mcpServers": {
    "naif-fixgraph": {
      "httpUrl": "https://naifgravity.com/mcp"
    }
  }
}
extensions:
  "naif-fixgraph":
    enabled: true
    name: "naif-fixgraph"
    type: streamable_http
    uri: "https://naifgravity.com/mcp"
    timeout: 300

Quality 79 / 100good

protocol88 · weight 25
  • pass
    protocol.modernsupports 2026-07-28 (server/discover)
  • pass
    protocol.statelessanswers without a session
  • pass
    protocol.transportstreamable HTTP
  • warn
    protocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every use
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations5 of 5 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 2,052 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability25 · weight 15
  • warn
    stability.changes95 tool changes in 30 days
  • fail
    stability.rug_pull23 tools kept their name but changed most of their description in 30 days; review before trusting them
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

5 tools, about 2,052 tokens to load them all · tool set 7c80a3d11445 · tools last changed 2026-10-08 · checked 2026-10-20 08:58 UTC

Tool changes

  • prepare_repairchangedinput schema
  • quote_repairchangedoutput schema
  • request_delegated_purchasechangeddescription, input schema, output schemameaning changed
    before

    Capped delegated purchase for four micro-services. 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 can be charged automatically within the stored cap. If provider support is missing, the flow fails closed.

    after · 45% of words in common

    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.

  • prepare_repairchangeddescription
    before

    Use only after the caller explicitly accepts a quote from quote_repair. With confirm=true, records that acceptance and creates checkout instructions on exactly one rail offered by that quote. 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.

    after · 62% of words in common

    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.

  • verify_repairchangeddescription, input schema, output schemameaning changed
    before

    Verify an existing payment after the buyer completes its payment action. APPLE_PAY verifies the existing Tap charge by checkoutId; wallet rails require the payer-provided txHash. It never creates or sends a transaction or charges the buyer.

    after · 39% of words in common

    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.

  • request_delegated_purchaseadded

    Capped delegated purchase for four micro-services. 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 can be charged automatically within the stored cap. If provider support is missing, the flow fails closed.

  • prepare_repairchangeddescription, input schema, output schema
    before

    Use only after the caller explicitly chooses a quote. With confirm=true, accepts that quote and creates checkout instructions on exactly one rail offered by quote_repair. APPLE_PAY returns a human handoff URL; BASE_USDC and TRON_USDT return wallet transfer instructions. It never sends funds or starts execution.

    after · 68% of words in common

    Use only after the caller explicitly accepts a quote from quote_repair. With confirm=true, records that acceptance and creates checkout instructions on exactly one rail offered by that quote. 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.

  • quote_repairchangeddescription, input schema, output schemameaning changed
    before

    Use only after diagnosis when the caller wants a priced bounded repair. Creates a non-binding quote; it does not accept the quote, create checkout, send payment or start execution.

    after · 46% of words in common

    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.

  • diagnose_issuechangeddescription, input schema, output schema
    before

    Start here. Diagnose one sanitized MCP, API, webhook, agent or integration failure for free. Returns bounded evidence plus a suggested repair service. It never creates a quote, checkout, payment or repair job.

    after · 56% of words in common

    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.

  • naif_sos_collisionremoved

    Start here when a sanitized MCP, API, webhook or agent failure is not yet classified. It records a new internal collision event and returns collision_id, source_token, bounded micro-proof, matched service and explicit probe/quote templates; repeated calls may create new collision metadata. For malformed JSON use json_validity_check instead, and for an already classified failure use the matching specialized rescue tool. It never starts a quote, checkout, payment or repair execution automatically.

Showing the latest 10. Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 96 / 100

provenance90
liveness97
freshness100
hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-93% +updated-7d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://naifgravity.com/mcp streamable-httpnoneyes93%631 ms2026-07-282026-10-20

Tools (5)

diagnose_issueStart 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.
prepare_repairUse 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.
quote_repairUse 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.
request_delegated_purchaseUse 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.
verify_repairUse 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.

Schemas: list_tools.

Also listed as

1 other active names share this repository: com.naifgravity/diagnostic

Similar MCP servers

Official server.json
{
  "name": "io.github.naief9961-tech/naif-fixgraph",
  "_meta": {
    "io.modelcontextprotocol.registry/publisher-provided": {
      "com.naifgravity": {
        "tags": [
          "AI Agents",
          "MCP",
          "A2A",
          "API Repair",
          "API Integration",
          "Authentication",
          "Webhooks",
          "Automation",
          "Agent Diagnostics",
          "Agent Recovery",
          "Developer Tools",
          "JSON Validation",
          "API Response Shape",
          "JSON Normalization",
          "Micro Tools V2"
        ],
        "catalogUrl": "https://naifgravity.com/api/agent/catalog",
        "description": "NAIF Gravity helps AI agents and developers diagnose MCP, API, authentication, webhook and automation failures using bounded evidence and safe recovery guidance. For sample-only JSON work, complementary Micro Tools V2 adds free preview, $1 JSON validity, $2 API response-shape comparison, and $3 JSON normalization with encrypted reports after verified one-time payment. Payments are always buyer-authorized; regional eligibility applies.",
        "agentCardUrl": "https://naifgravity.com/.well-known/agent-card.json",
        "commercialModel": "Free bounded MCP diagnostic entry. Separate one-time Micro Tools V2: free preview; $1 JSON validity, $2 API shape, $3 JSON normalization. Verified payment required for full report; no subscription or automatic transfer."
      }
    }
  },
  "title": "NAIF Gravity",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://naifgravity.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.7.1",
  "repository": {
    "url": "https://github.com/naief9961-tech/ai-growth-engine",
    "source": "github"
  },
  "websiteUrl": "https://naifgravity.com",
  "description": "Free MCP/API diagnostics. Micro Tools V2: free preview, $1 JSON check, $2 API shape, $3 normalize."
}