"Tools and methods for plotting graphs without an API key" matching MCP tools:

• invoke_mtprotoA

  Fast MCP TelegramA

  Low-level Telegram API (MTProto) invoke for methods not wrapped by other tools. Dangerous methods require allow_dangerous=true. Success: API result dict or normalized error. PII and credential-shaped fields (phone, access_hash) are dropped from a successful result by default; pass include_sensitive=true for the raw payload. A bare message id needs a chat binding: requests with no peer field (messages.GetMessages, messages.DeleteMessages) are refused, because a bare id resolves against an arbitrary dialog. Use channels.GetMessages or messages.GetHistory, which carry the binding. messages.GetHistory cannot address a forum topic (no thread_id/top_msg_id in the schema, and channels.GetHistory does not exist) -- use messages.Search with top_msg_id, or the high-level get_messages with reply_to_id. Full documentation: https://github.com/leshchenko1979/fast-mcp-telegram/blob/main/docs/Tools-Reference.md

  Connector

  Destructive

  No auth

• invoke_mtprotoA

  fast-mcp-telegramA

  Low-level Telegram API (MTProto) invoke for methods not wrapped by other tools. Dangerous methods require allow_dangerous=true. Success: API result dict or normalized error. PII and credential-shaped fields (phone, access_hash) are dropped from a successful result by default; pass include_sensitive=true for the raw payload. A bare message id needs a chat binding: requests with no peer field (messages.GetMessages, messages.DeleteMessages) are refused, because a bare id resolves against an arbitrary dialog. Use channels.GetMessages or messages.GetHistory, which carry the binding. messages.GetHistory cannot address a forum topic (no thread_id/top_msg_id in the schema, and channels.GetHistory does not exist) -- use messages.Search with top_msg_id, or the high-level get_messages with reply_to_id. Full documentation: https://github.com/leshchenko1979/fast-mcp-telegram/blob/main/docs/Tools-Reference.md

  Connector

  Destructive

  No auth

• get_startedA

  ideauditB

  What this server is, what it will do for you right now without an account, and what an account adds. Call this first if you have no API key — it answers in one round trip instead of sending you to a website.

  ConnectorNo auth

• rpc_callA

  BlockVectra: multi-chain RPC & Data APIA

  Execute a read-only JSON-RPC 2.0 method on a specified blockchain network using your BlockVectra API key, or via the keyless public endpoint if available on the chain. Chain slugs look like 'base_mainnet'; take them from list_chains. Without a key the call goes to the keyless endpoint `/v1/{chain}/public` (the chain's `public.url` in list_chains), which only serves the methods listed in that chain's `public.methods`. Write methods (such as 'eth_sendRawTransaction') are not supported in rpc_call; use 'send_raw_transaction' instead. Consult the Ethereum JSON-RPC specification (https://ethereum.org/en/developers/docs/apis/json-rpc/) and the BlockVectra method reference (https://docs.blockvectra.com/en/api/json-rpc/methods/). With a key, set the 'x-api-key' or 'Authorization: Bearer <key>' HTTP header in your MCP client configuration for full access (keys must not be passed in tool parameters or chat). Returns the raw JSON-RPC response from the server.

  ConnectorNo auth

• get_billing_portalA

  BorealHostB

  Get a Stripe billing portal URL for managing payment methods and invoices. Returns a URL (not a redirect) that the human can open in a browser. Requires: API key with read scope. Args: flow: Optional. Set to "payment_method_update" to go directly to the payment method update page. Returns: {"url": "https://billing.stripe.com/p/session/..."}

  ConnectorNo auth

• get_quotaA

  TollCalc MCPA

  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.

  ConnectorNo auth

• list_my_programsA

  Clickwise Affiliate NetworkA

  Use this when you hold a Clickwise affiliate API key and need the programs that key is approved to promote, with link readiness and your existing link count; set include_available to add the ones you can apply to. For discovery without an account use find_affiliate_programs or list_programs. Requires your own Clickwise affiliate API key on the MCP connection (X-API-Key header or Authorization: Bearer); acts only on your account.

  ConnectorOAuth

• estimate_usageA

  BlockVectra: multi-chain RPC & Data APIA

  Calculate projected daily and billing cycle Compute Units (CU) and USD costs for planned call volumes across one or more methods, factoring in method weights and free credit allowances from /v1/plans. Available without an API key. Estimates the API key count for planned traffic under the free-account `key_defaults` (free new-key default CU/s); the result also echoes `paid_key_minimums` (the paid-account floor, not a cap: the first paid top-up raises each key to at least this value and higher custom limits are kept, and a key's actual limits come from the console Keys list). Cost and quota assumptions are for free-tier accounts. Use this tool for volume budget calculations and capacity planning. For looking up raw system pricing tables, use get_pricing instead. For checking whether a single method is supported on a specific chain, use get_method_info instead. Accepts 'lines' array of {method, calls_per_day} or single 'method' and 'calls_per_day'.

  ConnectorNo auth

• generate_imageA

  Private AI Media GenerationA

  Render or transform an image or video with a catalog model (t2i, i2i, t2v, i2v, tool — tools like upscale/remove-background take image with no prompt; face-swap takes image + image2; motion models take image + video) — including the private model line flagged private=true in list_models. PAID. If this MCP request carries your API key (x-api-key / Authorization: Bearer lp_… — create at https://livepairai.com/settings after /auth/sign-up) the run executes right here and returns {status:'done',url} or a jobId to poll with get_job. Without a key the upstream answers 402 and this tool returns the x402 payment requirements (USDC on Base) for your wallet to settle.

  ConnectorNo auth

• get_account_statusA

  OneQAZ Trading IntelligenceA

  Purpose: Show which OneQAZ account (or API key) this connection uses, its plan and its rate limits. Requires a connected OneQAZ account — calling it without one prompts your AI app to connect (free, no API key needed; Pro users can use their key). All other tools work without an account. Triggers: "is my OneQAZ account connected?", "what plan am I on?", "내 OneQAZ 계정 상태", "남은 호출 한도". When to call: only when the user asks about their own account or limits. Output: full_data { principal (oauth|api_key), plan, usage {daily_limit, daily_used, minute_limit, ...}, account_id & connected_app (oauth only) }.

  ConnectorNo auth

• check_api_statusA

  livetennisapi-mcpA

  Check whether the Live Tennis API is reachable and which plan the configured key is on. Useful for diagnosing why other tools are refusing data.

  ConnectorNo auth

• get_demo_compositeA

  Compound Interesting — market intelligenceA

  A single fixed demo ticker, callable without an API key, so the data shape can be inspected before signing up. Returns only the demo ticker regardless of input. For real tickers use get_composite, which requires a free key.

  ConnectorNo auth

• discoverA

  AgentMarketplaceA

  Discover AgentMarketplace's capabilities, tools, auth methods, and scopes. Call this first when connecting to AgentMarketplace to understand what's available and how to authenticate. No authentication required. Returns a catalog of available tools, resources, auth methods, and scopes.

  ConnectorNo auth

• opcua_model_validateA

  OPC UA ModelerA

  Validate an OPC UA YAML model for correctness. Returns diagnostics with severity (error/warning/info), codes, messages, and line numbers. Works without an API key (limited to 50 calls/day). ALWAYS validate before generating.

  ConnectorNo auth

• get_free_keyA

  lazarettoA

  Get a free developer key for the metered tools on this server, without leaving this session. No payment, no account, no card. The key holds a small daily allowance that refills every day, and one credit is consumed per verdict, nothing on an error. Present it as the X-API-Key header on this MCP connection, or hand it to whoever configures your client. Throttled exactly as the equivalent HTTP endpoint is: one key per source per window, so calling this again shortly after will be refused rather than minting a second key. Store the key when you get it: it is shown once and cannot be recovered.

  ConnectorNo auth

• spend_guard_record_purchaseA

  Agent Spend Guard — owner-set purchasing guardrailsA

  Humans: sign up with your email at https://a2awire.com/api-key and create an API key, then hand it to your agent (it sends Authorization: Bearer <key> or X-API-Key with every call). Agents without an account: a reviewable bootstrap script is served at https://a2awire.com/api/v1/connectors/spend-guard/bootstrap.sh (download it, read it, then run it to mint a key). Call AFTER checkout. Record a completed purchase in the owner's spend ledger. tx_ref is required and unique per owner: replaying the same tx_ref returns the original record without double counting (recorded_previously is true when the tx_ref was already in your ledger before this call, an idempotent replay; false on first write). Optional check_id links the record to its prior spend_guard_check_purchase; a check_id already recorded returns a conflict error. Returns the recorded event and the month-to-date total. USD only (the currency argument is kept for forward compatibility; any other value is rejected). Not guest-callable. REST: POST /api/v1/spend-guard/record.

  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

• provision_api_keyA

  Physical Capability CloudC

  CALL THIS FIRST. Provisions an API key for the operator. Returns a pcc_live_* key that must be included as 'Authorization: Bearer <key>' on all subsequent requests. Accepts either email OR walletAddress. The key is shown once — save it. Without it, all other endpoints return 401.

  ConnectorNo auth

• registerA

  KadiConnectA

  Create a new KadiConnect account with a name, email and password, and receive an API key (starts with kc_). Use this only when the user wants a new account; if they already have an API key, use that instead. The key is shown once: tell the user to store it securely. Subsequent tools need it as an Authorization header or the apiKey argument.

  ConnectorNo auth

• switch_create_customerA

  PacketExchangeA

  MUTATES STATE. Create a switch-native customer and mint its first API key (returned ONCE, with sipPassword). Set markupPct, credit limit, margin floor, spend and concurrency caps, CPS, blocked prefixes, tax details and portalEmail. externalRef is an idempotency key: repeating a create with the same externalRef returns the existing customer WITHOUT a new API key or sipPassword. The provisioning entry point for onboarding a buyer. Requires an active Switch subscription (402 SWITCH_SUBSCRIPTION_REQUIRED otherwise) and a full-access API key (scoped keys need switch:manage). Test keys are NOT sandboxed here: they read and change your live Switch data.

  ConnectorNo auth

• get_unified_connection_mcp_urlA

  Unified.to MCP ServerB

  Get the MCP remote server URL for a specific connection ID. Returns a ready-to-use, connection-scoped Streamable HTTP MCP endpoint that exposes that connection's integration-specific tools. Authenticate with a workspace API key to use this. The URL embeds a credential and grants tool access without a further login, so treat it as a secret. It does NOT expire on its own. Revocation depends on the mode (see the `mode` parameter): an 'api'-mode URL carries the workspace API key and is revoked by rotating that key (which affects every URL that used it); a 'user'-mode URL is scoped to this one connection and is revoked by deleting the connection. Optional server options (permissions, tools, aliases, defer_tools, hide_sensitive, include_external_tools) are baked into the returned URL as query parameters.

  ConnectorNo auth