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com.sibfly/ground-motion

by sibfly.com · remote · no sign-in to list tools · v1.2.0 · published by com.sibfly

Measured ground motion per US address (NASA InSAR). Self-register, $0.40/report, misses free.

Changes · 5

9 tools: 5 change things and 4 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http ground-motion https://sibfly.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • The server marks "buy_credits" as not read-only (readOnlyHint: false), and its words say it reads.

    Matched text

    annotations: {"readOnlyHint":false,"idempotentHint":false}; The description's first verb is "get": a word for reading.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

9 tools

Changes things 5Claude Code: ask
  • ask_inspectorFREE follow-up Q&A with the SibFly Inspector about a report you ALREADY BOUGHT (buy via check_ground_motion first).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    FREE follow-up Q&A with the SibFly Inspector about a report you ALREADY BOUGHT (buy via check_ground_motion first). Ask what the numbers mean for foundations, staleness, seasonal swings, etc. It answers only from the report's numbers (never invents), and won't give buy/walk-away advice. Per-account message allowance applies.

    Annotations the server declares

    • readOnlyHint: true
    • title: Ask the Inspector (FREE, needs a bought report)
  • buy_creditsGet a machine-usable payment link to top up credits (requires your Bearer API key).1 finding

    Why it is in this group

    • The description's first verb is "get": a word for reading.
    • The server marks it as not read-only (readOnlyHint: false).

    Findings

    • Warn

      The server marks "buy_credits" as not read-only (readOnlyHint: false), and its words say it reads.

      Matched text

      annotations: {"readOnlyHint":false,"idempotentHint":false}; The description's first verb is "get": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Get a machine-usable payment link to top up credits (requires your Bearer API key). method 'stripe' returns a card checkout_url; 'crypto' returns a BTC invoice_url + txn_id. Open/relay the URL to complete payment; credits land automatically afterwards — confirm with get_account.

    Annotations the server declares

    • readOnlyHint: false
    • idempotentHint: false
    • title: Buy credits (payment link)
  • check_ground_motionMeasured ground motion (sinking/uplift) for a US address or lat/lon, in mm/year AND in/year, from NASA OPERA Sentinel-1 InSAR.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Measured ground motion (sinking/uplift) for a US address or lat/lon, in mm/year AND in/year, from NASA OPERA Sentinel-1 InSAR. Costs $0.40 from your SibFly credits; out-of-coverage / too-stale / too-low-confidence / fuzzy-geocode return FREE. Use the gate params to avoid paying for data you'd reject. dry_run=true is a FREE coverage+cost preview.

    Annotations the server declares

    • readOnlyHint: true
    • title: Check ground motion ($0.40, misses free)
  • check_portfolioBatch ground-motion for many US addresses in one call.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Batch ground-motion for many US addresses in one call. Only covered addresses are billed ($0.40 each); misses and duplicate cells are free. If credits run out mid-batch the response status is 'insufficient_credits' and unbilled items are marked — top up (buy_credits) and retry them.

    Annotations the server declares

    • readOnlyHint: true
    • title: Check many addresses ($0.40 per covered address)
  • register_agentFREE: create a new SibFly account and get an API key + free starter credits in ONE call — no human, no captcha, no card.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    FREE: create a new SibFly account and get an API key + free starter credits in ONE call — no human, no captcha, no card. Use this when you have no API key. SAVE the returned api_key and pass it as the Bearer token on later calls (MCP clients: set it as the Authorization header).

    Annotations the server declares

    • readOnlyHint: false
    • idempotentHint: false
    • title: Self-register (FREE key + credits)
Only reads 4Claude Code: allow
  • get_accountFREE: your SibFly credit balance, price per report, reports remaining, and top-up URL.Reads text others writeNo findings

    Why it is in this group

    • The name "get_account" says "get": a word for reading.

    What it can reach

    • untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
    Description, as the server wrote it
    FREE: your SibFly credit balance, price per report, reports remaining, and top-up URL.

    Annotations the server declares

    • readOnlyHint: true
    • title: Account balance (FREE)
  • get_coverageFREE pre-flight: is a US address/point covered, how stale is the data (data_age_days), and what a report would cost.No findings

    Why it is in this group

    • The name "get_coverage" says "get": a word for reading.
    Description, as the server wrote it
    FREE pre-flight: is a US address/point covered, how stale is the data (data_age_days), and what a report would cost. Accepts ONE address/lat+lon, OR addresses[] (up to 1000, needs your Bearer key) to size a whole job before spending. Call this before spending.

    Annotations the server declares

    • readOnlyHint: true
    • title: Coverage pre-flight (FREE)
  • get_motion_historyMulti-year cumulative motion history for an address.No findings

    Why it is in this group

    • The name "get_motion_history" says "get": a word for reading.
    Description, as the server wrote it
    Multi-year cumulative motion history for an address. Pass from_date and to_date (YYYY-MM-DD) to get the movement between two dates. Costs $0.40 (misses free). dry_run=true is a FREE preview (points + dates + cost, no data); max_age_days returns free instead of billing for stale data.

    Annotations the server declares

    • readOnlyHint: true
    • title: Motion history ($0.40, misses free)
  • get_usageFREE: your recent billed calls (line-item ledger with request_id, endpoint, address, cost) so you can reconcile spend against reports.No findings

    Why it is in this group

    • The name "get_usage" says "get": a word for reading.
    Description, as the server wrote it
    FREE: your recent billed calls (line-item ledger with request_id, endpoint, address, cost) so you can reconcile spend against reports.

    Annotations the server declares

    • readOnlyHint: true
    • title: Usage ledger (FREE)

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write1
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Looked at Oct 22, 2026, 14:40 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable
yes
HTTP status of an anonymous initialize
200
tools/list served without credentials
yes
Tools that change things, listed without credentials
5
Protocol version
2025-06-18
WWW-Authenticate on 401
not observed
resource_metadata in WWW-Authenticate
none
RFC 9728 protected resource metadata
https://sibfly.com/.well-known/oauth-protected-resource/mcp
Authorization servers
https://sibfly.com
Legacy HTTP+SSE transport
no
Dynamic client registration
yes
Client ID metadata documents
no
  • WarnThe whole server

    The endpoint served tools/list without credentials, and the list has 5 tools that change things (5 write). Whether a call also works without credentials was not tested: tools are never called.

    Matched text

    https://sibfly.com/mcp: tools/list returned 9 tools to an anonymous client, including check_ground_motion (write), check_portfolio (write), register_agent (write), buy_credits (write), ask_inspector (write)

    What this check looks for

Install

Pinned to version 1.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http ground-motion https://sibfly.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__ground-motion__get_coverage",
      "mcp__ground-motion__get_motion_history",
      "mcp__ground-motion__get_account",
      "mcp__ground-motion__get_usage"
    ],
    "ask": [
      "mcp__ground-motion__check_ground_motion",
      "mcp__ground-motion__check_portfolio",
      "mcp__ground-motion__register_agent",
      "mcp__ground-motion__buy_credits",
      "mcp__ground-motion__ask_inspector"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as ground-motion. Review it before you use it.

Capability tags behind 1 rule
  • mcp__ground-motion__get_account untrusted-input