"Using Claude to Check the Current Weather Without an API Key" matching MCP tools:

• revoke_api_key

  TunnelMind Data API

  Permanently deactivates the API key used to make this request. This action is irreversible. After revocation, the key will return 401 on all subsequent calls. If you have an active Stripe subscription, you must separately cancel it at stripe.com — revoking the key does not cancel billing. Use this tool when: - You want to rotate your API key (revoke old, then provision a new one). - You believe your key has been compromised. Do NOT use this tool when: - You want to check quota — use `get_api_key` instead. - You intend to keep using the API — this is permanent. Inputs: - No body or query parameters. Auth is from the `Authorization: Bearer` header. Returns: - `revoked`: true. - `note`: reminder about Stripe subscription cancellation. Cost: - Free. Does not count against the daily request limit. Latency: - Typical: <150ms, p99: <400ms.

  Connector

• tronsave_revoke_api_key

  TronSave MCP Server

  Revoke the caller's current internal API key. Side effect: any future request using the previous key is rejected. Existing in-flight sessions cached by the server may continue serving until their TTL expires — treat the effect as 'best-effort immediate' rather than guaranteed instantaneous cutoff. Idempotent — revoking an already-revoked key returns success. Requires a signature session and `mcp-session-id`. Call `tronsave_generate_api_key` afterwards to mint a replacement when continued internal access is needed.

  Connector

• get_site_info

  Bogeyland

  Returns basic information about this neighborhood directory: name, locale, domain, description, canonical URLs for key sections, plus the current LOCAL TIME and CURRENT WEATHER at the neighborhood (temperature, condition). Use this for any "what time is it there" or "what's the weather like" context.

  Connector

• priceConverter

  CoinPaprika

  Convert an amount from one crypto or fiat to another at the current rate, e.g. 'how much is 0.5 BTC in USD', 'convert 100 USDC to EUR'. For a plain coin price without an amount, use getTickersById. Read-only; baseCurrencyId and quoteCurrencyId are canonical ids and amount is the quantity to convert. No API key required.

  Connector

• request_api_key

  Nefesh — Real-Time Human State Awareness for AI

  Request a free Nefesh API key. No existing API key needed for this call. IMPORTANT: You MUST ask the user for their real email address before calling this tool. Do NOT invent, guess, or generate an email address. The user will receive a verification link they must click to activate the key. Without clicking that link, no API key will be issued. Disposable or temporary email services are blocked. Example prompt to the user: "What is your email address? You will receive a verification link to activate your free API key." Flow: call this with the user's real email, then poll check_api_key_status every 10 seconds until status is 'ready'. Free tier: 1,000 calls/month, all signal types, 10 req/min. No credit card.

  Connector

• revoke_api_key

  Molt2Meet

  Permanently deactivate an API key by its database ID. Requests using the revoked key are rejected immediately. Use this after rotating to a new key via create_api_key. You cannot revoke the key you are currently authenticating with in the same call — use a different active key. Requires: API key from register_agent.

  Connector

• tronsave_revoke_api_key

  mcp

  Revoke the caller's current internal API key. Side effect: any future request using the previous key is rejected. Existing in-flight sessions cached by the server may continue serving until their TTL expires — treat the effect as 'best-effort immediate' rather than guaranteed instantaneous cutoff. Idempotent — revoking an already-revoked key returns success. Requires a signature session and `mcp-session-id`. Call `tronsave_generate_api_key` afterwards to mint a replacement when continued internal access is needed.

  Connector

• pm_data_sources_health

  CoinRithm Agent Trading

  Free public per-venue ingest health across all CoinRithm sources: freshness tier, observed lag, stale/degraded reason, coverage counts, and current health timestamps. Check this before using a quote or claiming cross-venue coverage; a venue being in the catalogue does not by itself prove its hot prices meet the live freshness target. No API key required.

  Connector

• check_configuration

  vivideo

  Check whether a Vivideo API key is present on this request. Call this FIRST. Returns { configured: boolean }. If false, ask the user to add an Authorization: Bearer vv_live_... header to the MCP server config (a key from https://app.vivideo.ai/account/api-keys). Never asks for or exposes the key.

  Connector

• register_agent

  Arcology Knowledge Node

  Register as an agent to get an API key for authenticated submissions. Registration is open — no approval required. Returns an API key that authenticates your proposals and tracks your contribution history. IMPORTANT: Save the returned api_key immediately. It is shown only once and cannot be retrieved again. Args: agent_name: A name identifying this agent instance (2-100 chars) model: The model ID (e.g., "claude-opus-4-6", "gpt-4o")

  Connector

• snapforge_signup

  SnapForge

  Create a free SnapForge account (100 renders, one-time free trial, not a monthly allowance) with just an email address and get the API key instantly. The key is bound to the current MCP session, so the screenshot/pdf/markdown tools work immediately after signup, no browser needed.

  Connector

• get_quota

  TollCalc MCP

  Check remaining free-tier quota for this MCP session. Without authentication, 10 free requests are available per session. Pass an API key via Authorization: Bearer <token> header for plan-based quota.

  Connector

• analyze_geo

  Lotus — AI Citation Intelligence

  Analyze a domain's visibility across AI-generated answers. Without an API key: returns a limited preview (1/day per IP, 3/week). With a valid API key: returns the full analysis including measured metrics, revenue-at-risk estimates and scenario simulations.

  Connector

• account_api_key_status

  SAVORDISH

  Check the status of the API key you're using right now — see call count, rate limit, and creation date. Useful for monitoring your MCP usage. TRIGGERS: - 'check my API key', 'API key status', 'how many calls have I made' - 'my usage', 'rate limit status', 'key info'

  Connector

• signup

  Unphurl

  Create a new Unphurl account. Returns an API key (shown once, store it securely). After signup, the user must check their email and click the verification link. The API key won't work for URL checks until the email is verified. Verification link expires after 24 hours. If the link expires, use the "resend_verification" tool to request a new one. The account starts with 20 free pipeline check credits so the user can test with real URLs. Known domain lookups (google.com, github.com, etc.) and cached domain lookups are always free. To check more unknown domains through the full analysis pipeline, the user can purchase credits via the "purchase" tool. Once the user has their API key, they need to add it to their MCP server configuration as UNPHURL_API_KEY. This tool does not require an API key.

  Connector

• whoami

  BorealHost

  Check the current API key's account info, scopes, and site count. Requires: BOREALHOST_API_KEY env var (read scope). Returns: {"user": {"id": "uuid", "email": "...", "date_joined": "iso8601"}, "api_key": {"id": "uuid", "name": "...", "prefix": "bh_...", "scopes": ["read", "write"], "created_at": "iso8601"}, "account": {"sites": 2, "active_subscriptions": 1}} Errors: UNAUTHORIZED: Missing or invalid API key

  Connector

• revoke_api_key

  Dock

  Revoke an API key (soft-delete via `revokedAt`). Subsequent requests with the key return 401. Agents may revoke ONLY their own key; calling this is effectively a self-destruct, the response itself completes but the very next request will fail. Users may revoke any key they own. To swap creds without going dark in the gap, use `rotate_api_key` instead.

  Connector

• try_demo

  MCPSpend

  Run this WITHOUT an API key to see what MCPSpend output looks like. Returns a synthetic cost snapshot identical in shape to get_today_cost + list_top_tools + get_usage_this_month. Use this to preview the product before signing up.

  Connector

• pm_data_sources_health

  CoinRithm Agent Trading

  Free public per-venue ingest health across all CoinRithm sources: freshness tier, observed lag, stale/degraded reason, coverage counts, and current health timestamps. Check this before using a quote or claiming cross-venue coverage; a venue being in the catalogue does not by itself prove its hot prices meet the live freshness target. No API key required.

  Connector

• zerodust_register_api_key

  zerodust

  Issue this agent its own ZeroDust API key for higher rate limits, with no human signup step. The other tools work without a key, so only call this when rate limits are being hit, or when setting up an unattended agent that will run repeatedly. The key is returned once and cannot be retrieved later - report it to the operator.

  Connector