# NAIF Gravity

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

- name: io.github.naief9961-tech/naif-fixgraph
- version: 1.7.1
- connection class: R0 (autonomous)
- trust: 96/100
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.naief9961-tech%2Fnaif-fixgraph
- tools: https://api.protogrid.dev/v1/servers/io.github.naief9961-tech%2Fnaif-fixgraph/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "naif-fixgraph": {
      "type": "http",
      "url": "https://naifgravity.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 97
- freshness: 100
- provenance: 90
- drivers: +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.

## Quality 79/100 (good)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 5 of 5 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 2,052 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 25 (weight 15)

- warn `stability.changes`: 95 tool changes in 30 days
- fail `stability.rug_pull`: 23 tools kept their name but changed most of their description in 30 days; review before trusting them

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 5, about 2,052 tokens to load them all
- tool set hash: 7c80a3d114451c0a9820748bac4ab299
- tools last changed: 2026-10-08T13:42:47.367Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.naief9961-tech/naif-fixgraph.svg)](https://protogrid.dev/servers/io.github.naief9961-tech/naif-fixgraph)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-08 `prepare_repair` changed (inputSchema)
- 2026-10-08 `quote_repair` changed (outputSchema)
- 2026-10-06 `request_delegated_purchase` changed (description, inputSchema, outputSchema) **meaning 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: 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.
- 2026-10-06 `prepare_repair` changed (description)
  - 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: 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.
- 2026-10-05 `verify_repair` changed (description, inputSchema, outputSchema) **meaning 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: 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.
- 2026-10-05 `request_delegated_purchase` added
  - 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.
- 2026-10-05 `prepare_repair` changed (description, inputSchema, outputSchema)
  - 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: 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.
- 2026-10-05 `quote_repair` changed (description, inputSchema, outputSchema) **meaning 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: 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.
- 2026-10-05 `diagnose_issue` changed (description, inputSchema, outputSchema)
  - 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: 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.
- 2026-10-05 `naif_sos_collision` removed
  - 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.

Full history: https://api.protogrid.dev/v1/servers/io.github.naief9961-tech%2Fnaif-fixgraph/changes

## Remotes

- https://naifgravity.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.93333334)

## Packages

_none_

## Tools (5)

- `diagnose_issue`: 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.
- `prepare_repair`: 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.
- `quote_repair`: 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.
- `request_delegated_purchase`: 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.
- `verify_repair`: 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.