"A tool for creating payment organizations" matching MCP tools:

• research_nicheA

  KDP Niche ResearchA

  Get detailed KDP niche intelligence for a specific keyword. Returns demand score, competition score, Amazon BSR range, estimated monthly revenue, review threshold, average book pricing, and data freshness for the given Kindle publishing niche. Pricing tiers (x402 USDC on Base network): - $0.03 per query for cached/pre-seeded keywords - $0.10 per query for live on-demand research (new keywords) Use the free `list_niches` tool first to see available keywords. Payment options: 1. Set the KDP_X_PAYMENT environment variable on the server for auto-pay. 2. Pass a valid x402 payment header via the x_payment argument. 3. If neither is set, the tool returns structured 402 payment instructions that an x402-capable agent can use to construct and retry payment. Args: keyword: The KDP niche keyword to research (e.g. "romance novels", "keto cookbook") x_payment: Optional base64-encoded x402 payment header. Takes precedence over the KDP_X_PAYMENT environment variable.

  ConnectorNo auth

• get_xgr_purchase_optionsA

  XGR MCP GatewayB

  Call this first for every XGR purchase. Read live price, stock and payment assets; use payment_assets[].key exactly as payment_asset and inspect requires_sender_wallet before creating an order.

  ConnectorNo auth

• prepare_client_invoiceA

  ExpenseBotA

  Prepare a client invoice from a saved ExpenseBot report without creating it. Reads canonical report rows, allocates a unique invoice number, verifies the client ledger identity and advance, and returns exact totals plus a short-lived preparationId. Call this first, show the preview to the user, then call create_client_invoice after explicit confirmation. It reserves the invoice number and preview for 30 minutes but creates no invoice, document, Income row, email, or payment.

  ConnectorNo auth

• read_store_guideA

  SCVD General StoreA

  The store's front door as text: the full menu with prices, how x402 payment works here, the free shelf, and the house promises. Free. Completes when the guide text returns. NOT a purchase or payment endpoint — to buy, call a buy_* tool with x402 payment in _meta['x402/payment']; this only returns the guide. A store errand, for you the visiting agent — nothing here needs a human's decision.

  ConnectorNo auth

• credits_trialA

  Agentic EndpointsA

  Free, and the first tool to call if any other tool has told you payment is required. Returns a credit_token carrying $0.10 of credit — roughly ten calls at the standard price — with no wallet, no signature, no account and no email. Pass the returned token as the `credit_token` argument to any paid tool and it will run without an x402 payment. One allowance per caller: asking again returns the same token and whatever balance is left on it, never a refill. When it runs out, buy more with the /credits/buy endpoint. This tool is free; no payment is required.

  ConnectorNo auth

• buy_creditsA

  AIDataParserA

  Get a Stripe checkout link for a one-time credit pack, to hand to the user. Packs: `starter` $9 for 500 credits, `growth` $29 for 2,000 credits, `scale` $99 for 10,000 credits. Credits never expire; 1 credit per document. If this server has an API key set, the credits land on that key's account. Without a key, pass the user's `email` (ask them; do not invent one) — the page after payment shows their new API key. Creating the link charges nothing; the user pays on Stripe's page.

  ConnectorNo auth

• search_trials_by_sponsorA

  xpay Academic Research CollectionC

  Search clinical trials by sponsor/organization. This tool allows you to search for clinical trials based on a list of sponsor organizations. Input: - `sponsors`: A list of strings, where each string is a sponsor organization to search for. The search will find trials sponsored by any of the specified organizations. Example: `['National Cancer Institute', 'Pfizer']` - `max_studies`: The maximum number of studies to return. Defaults to 50. - `fields`: A list of specific fields to return in the results. If not provided, returns SEARCH_TOOL_DEFAULTS (9 essential fields: NCTId, BriefTitle, Acronym, Condition, Phase, InterventionName, LeadSponsorName, OverallStatus, HasResults).

  ConnectorNo auth

• suggest_toolA

  MentionForgeA

  Pick exactly one MentionForge tool for a goal. Pass need as a goal sentence, not a tool name — URLs, wallets, and payment header names are stripped before routing; extra keys such as query, timeframe, or payment fields are rejected (those belong on the suggested tool); sending a sibling tool name still keyword-routes from the remaining words. Use this free router when you are unsure which tool to call; for liveness use get_health instead; for price use get_pricing instead; for live mentions use research_mentions. Never charges, never runs research; this origin rate-limits discovery pulses; the 10-call trial is shared across paid tools so call only one paid tool per question.

  ConnectorNo auth

• qm_data_astronomyA

  Quiet MendersA

  Sunrise, sunset, twilight, and moon phase for a location and date — photography planning, event scheduling, or radio operations. Price: $0.01 USDC on Base via x402 (the live 402 challenge is authoritative). Two-phase: call without 'payment' to get the live payment requirements (payTo, amount, accepted networks); pay from your own wallet, then re-call with 'payment' set to the base64-encoded x402 payload — the data comes back in the tool result. This tool never pays, never touches private keys, and never holds funds. Resale permitted: you may resell this data output at your own price.

  ConnectorNo auth

• qm_data_astronomyA

  Quiet MendersA

  Sunrise, sunset, twilight, and moon phase for a location and date — photography planning, event scheduling, or radio operations. Price: $0.01 USDC on Base via x402 (the live 402 challenge is authoritative). Two-phase: call without 'payment' to get the live payment requirements (payTo, amount, accepted networks); pay from your own wallet, then re-call with 'payment' set to the base64-encoded x402 payload — the data comes back in the tool result. This tool never pays, never touches private keys, and never holds funds. Resale permitted: you may resell this data output at your own price.

  ConnectorNo auth

• swop_create_checkoutA

  swopA

  Take payment on the seller's own website: creates a checkout for a cart of the linked account's OWN products, so a buyer pays there instead of being sent to Swop. For a single shareable link use swop_get_product_link instead. Prices come from the seller's catalogue and must NOT be sent — a price in the request is rejected. Shipping is charged automatically for physical products, and for those the buyer's name, email and delivery address are REQUIRED (the call is refused otherwise, naming what is missing). Rails: USDC on Solana always; set offerCard when the seller is card-enabled and every item is a physical good — then the response has cardOffered: true and paymentRequest is null until the buyer picks a rail on the seller's page via the public URLs POST /api/v5/checkout-intents/{intentId}/card-payment-intents (Stripe client secret for a Payment Element) or POST .../select-crypto (publishes the Solana Pay request). Otherwise paymentRequest is returned at once (a solana: URL the buyer's wallet opens, also fine as a QR code). Settlement is automatic once the payment lands — nothing to confirm; poll swop_get_checkout for status. Show the buyer the products, quantities and total before creating.

  ConnectorNo auth

• printing.quotes.updateA

  AIURION Agentic 3D Printing — San FranciscoA

  Replace the owned quote's quantity, material, production speed, or fulfillment and recalculate pricing. This overwrites the current quote configuration and invalidates its prior price approval. Any still-open checkout session for the quote or its linked build is expired; the old checkout link cannot be restored. Tell the customer that an existing unpaid checkout link will stop working before applying their requested changes. Show the revised quote and obtain renewed approval before creating a new unpaid checkout link. Paid quotes and active payment authorizations cannot be changed. This tool does not charge, capture, refund, or release manufacturing.

  Connector

  Destructive

  No auth

• pay_orderA

  eSIM TabbyA

  Pay for an order in USDC over x402, without opening a browser. Only for an MCP client that signs x402 payments itself: call it once for the payment requirements, then repeat the call carrying the signed payment in _meta['x402/payment'] and it settles and starts the eSIM. If your wallet is a separate tool, make an x402 request to the order's x402_url instead — this tool cannot take a payment on a wallet tool's behalf.

  ConnectorNo auth

• statusA

  HumansLikeStuff MCPA

  Existing exact HLS request ID only: read-only lifecycle lookup. It does not create or modify a request/order or authorize payment. For long-running or manual work, check status or wait rather than creating another request. Returns only bounded public state, question, quote/payment instruction, fulfillment/shipping update, and next action; it does not list or search requests.

  ConnectorNo auth

• purchase_changesA

  ALPNAI — Agent Performance ToolsA

  Get Change Set for 0.05 USDC. Default mode sandbox creates a test receipt and debits only the test budget. Explicit mode live uses x402 only when commerce, owner mandate and billing eligibility are enabled. An unpaid result contains PaymentRequired in structuredContent and content. Retry the same tool and idempotency key with the signed PaymentPayload in params._meta["x402/payment"]. Confirmed settlement is returned in result._meta["x402/payment-response"]. For a pending order, call get_order with the original order_id; do not submit another payment. REST continuation and PAYMENT-SIGNATURE headers remain supported. Never send a private key.

  Connector

  Destructive

  No auth

• purchase_evidenceA

  ALPNAI — Agent Performance ToolsA

  Get Evidence Pack for 0.25 USDC. Default mode sandbox creates a test receipt and debits only the test budget. Explicit mode live uses x402 only when commerce, owner mandate and billing eligibility are enabled. An unpaid result contains PaymentRequired in structuredContent and content. Retry the same tool and idempotency key with the signed PaymentPayload in params._meta["x402/payment"]. Confirmed settlement is returned in result._meta["x402/payment-response"]. For a pending order, call get_order with the original order_id; do not submit another payment. REST continuation and PAYMENT-SIGNATURE headers remain supported. Never send a private key.

  Connector

  Destructive

  No auth

• get_intent_topicsA

  Metadata MCP ConnectorA

  Get available intent topics for BOMBOORA audience creation. IMPORTANT: Call this tool first before suggesting or creating any Bombora audience. If the response returns NO topics (empty list), Bombora is NOT available for this account — do NOT suggest Bombora audiences. Instead, recommend creating a firmographic audience (create_firmographic_audience) as the preferred alternative. Retrieves the list of available buyer intent topics that can be used when creating BOMBOORA intent topic audiences. These intent topics represent different buyer interest areas and purchasing signals that can be used for precise audience targeting. WHEN TO USE: - Always call this BEFORE suggesting or creating a Bombora audience to verify topic availability - Discover available intent topics before creating a BOMBOORA intent topic audience - Understand what buyer intent signals are available for targeting - Build audiences based on specific buyer interests and purchasing signals - Integrate intent topic selection into the audience creation flow RETURNS: List of available intent topics with their details including: - Topic ID/name - Topic description - Available packages or categories - Any additional metadata for targeting configuration NEXT STEPS: After retrieving intent topics, use the intent topic IDs with the audience creation tool to create BOMBOORA intent topic based audiences.

  ConnectorAPI key

• analyze-seo-keywordsA

  GigSoul x402A

  Suggest the top 10 SEO keywords for a topic with estimated relative search volume and difficulty. Use for early keyword ideation and content planning. Based on model training knowledge, not a live lookup; figures are estimates. Not live keyword-tool data; validate volumes in an SEO tool before committing budget. For a posting schedule, use generate-content-calendar. Pay-per-call: $0.04 USDC on Base via x402. Without a payment-signature header the call returns an error whose data carries the payment terms.

  ConnectorNo auth

• waste_rule_infoA

  RegEvidenceHub WasteA

  LEGACY COMPATIBILITY alias for waste_service_info. Use waste_service_info for new integrations. Returns the same payment-free service metadata so older installed connectors do not fail with Unknown tool.

  ConnectorNo auth

• list_waste_rulesA

  RegEvidenceHub WasteA

  LEGACY COMPATIBILITY alias for waste_rule_catalog. Use waste_rule_catalog for new integrations. Returns the same payment-free supported-role/activity catalogue so older installed connectors do not fail with Unknown tool.

  ConnectorNo auth

• book_rideA

  bookingA

  Create a secure payment link to book a private chauffeur transfer. The reservation is created automatically ONLY after the customer completes payment. REQUIRED: call get_quote first and pass the resulting quote_id + the chosen vehicle_id. The price is taken from the stored quote (not from any price field you pass). Pass idempotency_key to make retries safe: the same key returns the same payment link instead of creating a duplicate.

  ConnectorNo auth