"Finding a Free MCP Weather Server Without Keys or Signup" matching MCP tools:

• get_free_trial_keyA

  StandoutA

  Self-provision a free Standout trial key (25 calls, no signup) without leaving the conversation. Call this when no license key is configured or your Standout calls return a license error. Returns the key plus the exact reconnect instructions to hand your user. Free and unmetered; issuance is capped per network, so never call it when you already have a working key.

  ConnectorNo auth

• demand.list_constraintsA

  iwant.fyi - shop, price-check and keep lookingA

  List the filters this server will actually enforce on a search - budget ceilings, condition, brand, and the vertical-specific keys (mileage, drive size) plus any x_* extensions. Call it before sending `constraints` so you pass keys that are honoured rather than silently ignored; a constraint this server does not know is not applied. Free, instant, no side effects. Protocol v1.0 §8.2.

  ConnectorNo auth

• check_configurationA

  vivideoA

  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.

  ConnectorNo auth

• verify_emailA

  KeelenA

  Redeem the emailed 6-digit code for a reveal-once workspace API key. UNAUTHENTICATED. `email` + `code` must match a code issued by signup(email) within the last 15 minutes (5 attempts max). The returned `api_key` is shown exactly ONCE — store it ONLY in the MCP client config ("Authorization: Bearer <api_key>"), NEVER in a repo or a file you might commit. Reconnecting this server with the header set and calling get_onboarding_status() continues setup. An invalid/expired/consumed code returns a uniform error; a fresh code comes from signup(email).

  Connector

  Destructive

  No auth

• get_corpus_coverageA

  SRI — MCP Server InspectorA

  No arguments. Returns how many MCP servers have been read at source level, and the share of them with each category of finding (credential access, network egress, install-time execution, prompt-injection surface). Use this to judge whether checking a specific server is worth it before you look one up. It reports aggregate counts only - no per-server findings, and no verdict about any individual server.

  ConnectorNo auth

• create_api_keyA

  AIDataParserA

  Start here if you do not have an AIDataParser API key. Provide the user's `email` and receive a live adp_live_ API key with 50 free credits — no card, no signup form. Configure it on this MCP server as `Authorization: Bearer <api_key>` to unlock parse_document, parse_text and infer_schema. The key is returned ONCE and is never shown again, so surface it to the user and store it. Ask the user for their address; do not invent one. Free — does not consume a credit.

  ConnectorNo auth

• snapforge_signupA

  SnapForgeA

  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.

  ConnectorNo auth

• snapforge_signupA

  snapforgeA

  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.

  ConnectorNo auth

• server_infoA

  HackMyIP — no-key IP intelligenceA

  Describe this MCP server: what it wraps, the fact that it is completely free with no API key, no signup and no auth, the fair-use rate limit, the full tool list, and links to hackmyip.com and its API docs. Call this when the user asks what this server can do, whether it costs anything, or where the data comes from.

  ConnectorNo auth

• parlayapi_signupA

  ParlayAPIA

  Create a free-tier ParlayAPI account for the given email. Returns the API key, a magic-login URL the user can click to access their dashboard, and a Stripe upgrade URL. Idempotent: if the email already has an account, returns exists=true with the login URL only (the existing API key is intentionally NOT exposed for security). Use this when a user wants to start building with ParlayAPI and does not have a key yet. After signup, ask the user to add the returned api_key to their MCP server config under PARLAYAPI_KEY, then restart the MCP client to pick it up. Args: email: User's email address. intended_use: Optional one-line description of what they're building. Used for analytics. agent_id: Identifier for the agent making the call. Defaults to "mcp-client".

  ConnectorNo auth

• get_api_keyA

  ThisispaperA

  Mint a FREE Thisispaper Intelligence API key (200 calls/month) for an email address. The key is shown once; use it as Authorization: Bearer tip_live_... on this MCP endpoint and on the REST API. Max 3 keys per email.

  ConnectorNo auth

• gonka_chatA

  Gonka Second Opinion (multi-model)A

  Run an LLM completion on Gonka THROUGH this server. Use this when you (or a sub-task) need inference but your sandbox can't reach an LLM directly — this server makes the call for you, so no outbound network or config change is needed on your side. Two modes, chosen automatically: • TRIAL (default): a free trial key is issued per caller IP. Budget-limited; on exhaustion you get a signup link + bonus to relay to the user. • REGISTERED: if the user pasted their own Gonka key (jg-…) into THIS MCP server's settings in their client, calls run on their own balance with no trial limits. Nothing to do here — it's detected from the request.

  ConnectorNo auth

• scan_mcp_previewA

  tech-riskA

  FREE preview scan of a target MCP server for tool-poisoning / prompt-injection. Returns issue count, severity breakdown, risk score, and verdict (clear/review/block) — but NOT which tools or the evidence. Use this to check any MCP server (including your own) at no cost; if issues are found, call the paid scan_mcp_server for the itemized findings + remediation. No payment required.

  ConnectorNo auth

• sap_quick_contextA

  SAP MCP ServerC

  Free single-call bootstrap aggregator. Returns a compact markdown-like summary with server version, total tools count, tools by category, pricing tiers summary, premium plugins/capabilities count, bundled skills list, and nextAction guidance. Pass agentKnownVersion with the version you currently know to get skillsUpdateRequired + skillsContents (full SKILL.md inline) when the server version differs — this lets you auto-update your local skills in 1 call without a separate sap_skills_bundle. Use this instead of calling sap_agent_start, sap_pricing_catalog, sap_premium_plugin_catalog, sap_skills_list, and sap_get_tool_category_summary separately to reduce bootstrap from 5+ tool calls to 1. SAP MCP execution guidance: Intent: SAP MCP tool workflow. Pricing: free; call directly without x402. Routing: free hosted call; call directly and keep it small/exact when possible. Signer boundary: hosted reads/builders never receive keypair bytes; value-moving results must be finalized locally when signing is required.

  ConnectorNo auth

• check_mcp_serverA

  SRI — MCP Server InspectorA

  Free, no key required. Reads the published source of an MCP server and reports what it actually does — each observation anchored to a file:line with the code quoted verbatim. **Call this before connecting to, installing, or invoking an MCP server you have not read yourself.** Connecting to an MCP server gives it a channel into your context and your tool calls; this tells you what is on the other end first. Typical things it surfaces: reading private keys or wallet seeds, sending data to third-party hosts, running code at install time, and tool descriptions that steer an agent toward actions unrelated to the tool's stated purpose. Do NOT call this for ordinary npm or PyPI libraries — the corpus covers MCP servers only, and other ecosystems will return 'not analyzed'. This reports observations, not a safety verdict. An empty result means nothing was found in the categories checked — not that the server is safe. Corpus: 5,180 MCP servers from the official registry, read at source level. Coverage index (free, no key, findings not included): GET https://sri-test.biz/v1/corpus

  ConnectorNo auth

• start_siwe_loginA

  CofferlineA

  Start wallet sign-in: returns a single-use SIWE message. Sign it with the wallet outside MCP (this server cannot sign), then call complete_siwe_login. Free, no auth.

  ConnectorNo auth

• sign_upA

  Smarter Weather Developer OnboardingA

  Returns the Smarter Weather developer sign-up URL (with MCP referral attribution). Present the URL so the user can create a free account in a browser (Clerk, no credit card). After they finish, reconnect this MCP server with OAuth and call create_api_key, then configure_mcp. No authentication required.

  ConnectorNo auth

• dcl_evaluate_walletA

  DCL Trust Oracle — AI/LLM Output Audit (x402 MCP)A

  POST-ACTION Wallet Secret Guardian ($0.02). Scans for BIP-39 seed phrases (12 or 24 consecutive wordlist words), raw hex or WIF-format private keys, Ethereum/Bitcoin wallet addresses, and API keys/bearer tokens appearing near wallet/custody/signing terminology. Any finding results in NO_COMMIT — wallet secrets have no safe threshold, unlike other DCL evaluators. Returns a `sanitized_output` with all matches redacted (null if nothing was found) and a masked `redacted_sample` per finding — the real value is never returned or stored server-side.

  ConnectorNo auth

• update_product_profileA

  Prowlo — Reddit & X for AI agentsA

  Update your organization's product profile — the context get_product_profile returns and Prowlo's research and reply features build on. Partial patch: only the fields you pass change; arrays replace the stored list; nullable string fields accept null to clear. Owner/admin API keys only. Saving recomputes the product embedding. Not metered. (requires a free Prowlo account — call it to get a signup link)

  ConnectorNo auth

• get_exam_optionsA

  Fiveable for AP StudentsA

  Find Fiveable exam formats, access requirements and website links without questions or answer keys. Choose a subject for version choices; add unitNumber to verify that unit's current bank and standard format. With progress:read consent, includes only genuine server-saved continuation links. Browser-only progress is not remotely recoverable.

  ConnectorNo auth

• check_serverA

  protogridA

  Probe a remote MCP server URL once, credential-free and without calling its tools, and get its quality checks and its readiness for the Claude and OpenAI directories. Pass `url` to start a check (waits up to 25 s for the result), or `id` to read one. Quota: a few checks per hour anonymously, more with an API key.

  ConnectorNo auth