"Identifying Servers Without Any API Key Configuration" matching MCP tools:

• get_variable_relationships

  hypathesis

  Retrieve analyzed variable relationships for a completed paper. Only returns results when get_analysis_status reports status='Ready'. Without an API key (anonymous): returns the relationship list with source, target, and direction — but detailed reasoning is available only with an API key. Sign up at https://hypathesis.com to get one. Args: file_id: The file_id returned by the /upload endpoint. authorization: Optional. API key as 'Bearer hk_...' or 'hk_...'. Returns: Authenticated: full details (source, target, directed, reason per relationship; name, measure per variable). Anonymous: gated (source, target, directed per relationship; name per variable; sign_up_url for full access).

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• read_reddit

  haunt

  Read Reddit posts or comments as structured JSON without Reddit API credentials, app registration or OAuth. Accepts a subreddit URL, a post URL, or shorthand like r/webdev. Set comments true to read a post's comment thread. Returns an honest typed signal instead of invented data when Reddit blocks the read. Failed calls are free. Requires Authorization: Bearer or X-API-Key.

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• 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.

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• delete_api_key

  Timix.AI

  Permanently revoke one of your Integration API keys. Any MCP clients or integrations using the key will lose access immediately and cannot be restored. Returns a preview; re-call with the confirm_token and an idempotency_key to commit.

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• get_element

  OnlyWorlds

  Fetch one element by `type` and `id` (a UUID) from the world named by your API-Key header. `type` is a slug from `list_element_types`. Returns the full v2 wire shape (the same body as `GET /api/v2/{type}/{id}`): `type`, `id`, `name`, scalar fields, link fields as UUID arrays, and any extension fields inline. Requires a READ or WRITE API-Key. Errors if no element of that type with that id exists in the world.

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• resolve_alias

  dns-of-money

  Resolve a human-readable financial alias (pay: address) to payment endpoints and routing metadata. Call this before initiating any payment to a pay: address. Returns the preferred rail, fallback endpoints, an ISO 20022 hint, and a compliance signal. Anonymous calls return status only; a free API key (no credit card) unlocks the endpoint set — which rails and currencies the alias accepts — via POST /api/v1/access-requests. You do NOT need a key to pay: get_payment_requirements returns a payable address to any caller. Example: resolve_alias('pay:acme.user').

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• whoami

  KernelScan

  Return the caller's identity, plan, and quota state. Works without an API key: keyless callers get a lightweight public-tier payload (no account) describing how to request access.

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• get_setup_guide

  SwapWizard MCP

  Returns the complete setup and usage guide for SwapWizard. Call this FIRST before using any other tool. Covers: required configuration (API key, Alchemy RPC URL, private key), how to use poolId correctly, step-by-step operational flows for swap/zap in/zap out/analyze, transaction execution details, and approval rules.

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• sanctions_screen

  banking-intelligence

  Screen a name against global sanctions and watchlists. FREE TIER: 3 screens per day without an API key. PAID: Unlimited screens with an API key. Checks the name against US SDN (OFAC), EU, UK, Canada, Switzerland, Australia, and New Zealand sanctions lists. Returns matching entities with similarity scores. Args: name: The person or entity name to screen. api_key: Your Ohmyfin API key (prod-...). Can also be passed via KEY header or Authorization: Bearer header. Optional — free tier allows 3 screens/day without a key. threshold: Minimum match score 0-100 (default 85). Examples: sanctions_screen("Acme Trading Ltd") sanctions_screen("John Smith", threshold=90) sanctions_screen("Acme Trading Ltd", api_key="prod-abc123...")

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• trust_pubkey

  SaSame MCP Observatory + Gold Rush Town

  Return SaSame's ed25519 PUBLIC key. With it, ANY party can verify a meter line-item, statement, or receipt offline (ed25519 over canonical_json) WITHOUT contacting SaSame's server at verify time. Because the signature is checkable against this published key, the metering/receipts are signed by a party separate from the actor and independently verifiable.

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• audit_agent_visibility

  Vibe Springs

  AEO/GEO Agent Visibility Auditor. Audit any third-party API endpoint for x402 compatibility, schema compliance, robots.txt indexing accessibility, and LLM tool calling clarity. [PAID: $0.75 USDC per call via x402 on Base. First call without payment_signature returns the payment requirements.]

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• second_opinion_panel

  Second Opinion

  Three independent adversarial verifiers attack the claim through different lenses (evidence, logic, currency) and vote ($0.75, ~90s). Use for high-stakes or contested claims where a single check is not enough. Without a payment argument it returns an exact pay-per-call quote (no account, no API key).

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• cc.central_signal

  Central Command

  Call cc.central_signal — Unified signal ingestion endpoint that normalizes symbols from any exchange format (Binance, Bybit, TradingView) to executable format and routes to execution. Purpose: Unified signal ingestion endpoint that normalizes symbols from any exchange format (Binance, Bybit, TradingView) to executable format and routes to execution. Behavior: DESTRUCTIVE. Normalizes the signal and routes toward trade execution for the authenticated account. Can open/close positions. Auth: X-Api-Key required (and linked exchange credentials for execution actions). Cost: $0.01 USDC per successful call (x402 Base USDC pay-per-use or prepaid X-Api-Key balance). Linked Connect keys are free. This is billing, not a side effect. Rate limit: 30/min (per API key). Tier: premium. Returns: Signal confirmation with execution status, order ID, fill price, and routing metadata. Guidelines: Use for research / signal context. Pair with cc.agent_strategy (paper) before any live order. Do not invent fills from this data alone. Tags: signals, execution, routing, tradingview, webhook, automation.

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• splitlaunch_healthcheck

  SplitLaunch

  Verify SplitLaunch MCP connectivity and return the authenticated API-key context without exposing the secret key.

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• company_search_result

  banking-intelligence

  EXPERIMENTAL — Retrieve cached company search results by search ID. Every company_search_person and company_search_company call returns a search_id. Use this tool to retrieve those results again without re-running the search. Args: search_id: The search_id from a previous company search response. api_key: Your Ohmyfin API key (prod-...). Can also be passed via KEY header or Authorization: Bearer header. Examples: company_search_result("abc123-def456")

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• monad_pulse

  Zambo AI Tools

  Live Monad mainnet network stats via NadCity. Returns: current TPS, peak TPS (24h), active wallets right now, 24h volume in MON, current block number, average block time (ms), total contracts tracked, new contracts deployed today, and WebSocket connection status. Cached 30 seconds. Free, no auth. Use before any on-chain Monad action to check network health. If avgBlockTimeMs > 500 or wsConnected is false, the network is under stress. Note: Zambo MCP users automatically get a NadCity API key (10k req/day free, 100k/day on Day Pass, unlimited on Zambo Pass). Retrieve it at: GET https://zambo.dev/api/nadcity/key?email=you@example.com — use as X-Api-Key for direct NadCity API calls.

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• register

  search

  Get your user a free Aimnis API key (no credit card, takes one call). Ask your user for their email address first. The key comes back in this tool result — relay it to the user so they can save it and add it to your MCP connection ('Authorization: Bearer aim_...'). A key raises the daily live-search limits; cached answers are always free, with or without a key. Re-registering with the same email rotates (replaces) that email's key.

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• arena_list_subscriptions

  backtesting-arena

  Returns every ACTIVE subscription belonging to the current API key: id, type, trigger configuration, delivery method and expiry. Use it to see what is already running before creating a duplicate, and to get the subscription_id that arena_cancel_subscription needs. Does not return fired updates — that is arena_check_subscription_updates. [API Pro tier]

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• get_payment_requirements

  DripMetrics

  Free. Dry-runs a metric request without payment and returns the exact x402 challenge the API issues (accepted networks, asset, amount, payTo). Invalid parameters fail here before any payment.

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• configure_agent

  SingChat

  Configure this workspace's AI support agent. All fields are optional, only the fields you pass are updated; the rest keep their current values. Call with no fields to just read back the current configuration. Does not touch or return any API keys.

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