"Samsung Pay" matching MCP tools:

• prepare_mail_payment

  PostAgent

  Returns the x402 PAYMENT-REQUIRED challenge for a locked quote so an x402-capable wallet client can sign it. No payment is taken at this step. Probes the canonical per-quote pay URL (`/v1/quotes/:quoteId/pay`). The preferred way to actually pay is for the wallet to perform the standard x402 in-band handshake against `paymentUrl`; this tool is for inspection or for the detached-signature flow via `submit_paid_mail_job`.

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• submit_paid_mail_job

  PostAgent

  Detached-signature fallback for x402 wallets that can emit a standalone PAYMENT-SIGNATURE header. THE PRIMARY/RECOMMENDED PATH is for the agent's wallet to pay the quote's `paymentUrl` in-band (e.g. `npx awal@latest x402 pay <paymentUrl>`); use this tool only if your wallet client cannot do that. Charges the agent in USDC on Base mainnet and creates a physical letter for printing and mailing. THIS IS IRREVERSIBLE. Only call after the user has explicitly confirmed the recipient, sender, content, and price returned by create_mail_quote, and after obtaining the signed x402 payment header (see prepare_mail_payment).

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• wallet_helper

  Omnicall — Agent Tools Gateway

  Return step-by-step instructions for setting up x402 USDC autopay for this MCP server. Use this if a paid tool returned a 402 error or you're onboarding a new agent that needs to pay for API calls. Free.

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• pay_invoice

  MERX - TRON Resource Exchange

  Pay an x402 invoice by signing and broadcasting a TRX transfer to the invoice address, then verifying the payment with the facilitator. x402 (Coinbase + Cloudflare HTTP 402 standard) is the protocol AI agents use to pay APIs per call. Use this when you receive an invoice_id from a paywalled service or another agent. REQUIRES: TRON_PRIVATE_KEY in env (use set_private_key first) AND a valid invoice_id from create_invoice or x402 challenge response. The transfer is signed locally — your private key never leaves the MCP process.

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• get_wafer_pricing

  Silicon Analysts

  Returns 300mm wafer price ranges (min/avg/max USD), defect density, NRE/mask-set cost, and node maturity for: tsmc-n3, tsmc-n5, tsmc-n7, tsmc-28, samsung-3nm, samsung-5nm, intel-16. Optional `node` filter narrows to one. USE THIS for: looking up wafer cost for cost modeling, comparing foundries at the same node. DO NOT USE for: per-chip cost (use get_accelerator_costs or calculate_chip_cost); packaging-related cost (use get_packaging_costs). Returns INVALID_PARAMS if node is not in the valid set. Each record carries the source attribution string. Refreshes monthly.

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• aicom_agora_message

  aicomglobal

  The Agora's one paid action: pay tiny x402 postage to DELIVER a PRIVATE direct message into another agent's inbox. Everything conversational is FREE (browse, post, reply in public threads, read your inbox); you pay only for private, targeted reach (the postage is what makes a private message get read, not spam-filtered). If a public answer works, use the free aicom_agora_reply instead. This returns the QUOTE only (price, asset, network, how to send); to actually send, GET /agora/message for a nonce then POST /agora/message with {nonce, signal_id|to, body}.

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• wallet_helper

  GoCreative Agent API

  Return step-by-step instructions for setting up x402 USDC autopay for this MCP server. Use this if a paid tool returned a 402 error or you're onboarding a new agent that needs to pay for API calls. Free.

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• get_payment_info

  changegamer

  Return the agent payment manifest: every way to pay (HTTP 402 + Bearer key, MCP, Stripe checkout, x402, RSL per-crawl), the exact 402 retry loop, what is always free, and the recommended path per use case. Same data as /api/payment.json.

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• colorize_image

  Sats4AI - Bitcoin-Powered AI Tools

  Colorize black-and-white or grayscale photos. DDColor (dual-decoder, ICCV 2023) — vivid, natural colorization. Impossible for text/vision LLMs. 5 sats per image, pay per request with Bitcoin Lightning — no API key or signup needed. Requires create_payment with toolName='colorize_image'.

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• get_checkout_link

  premium-domains

  Generate a pre-filled, authenticated Atom checkout URL for a chosen domain so the user can pay on Atom. Use when a user wants to BUY a domain but is not using balance registration, lacks sufficient balance, or prefers to pay per purchase (card/PayPal). This is the no-debit alternative to register_domain. IMPORTANT: this tool only returns a link — it does NOT charge anything or complete a purchase. Returns: domain, price + currency, checkout_url (give this to the user to finish payment), and expires_at. Present the price and the checkout link; tell the user payment completes on Atom.

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• close_futures_position

  CoinRithm Agent Trading

  Close or partially reduce a mock futures position. fraction in (0,1] reduces partially; omit (or 1) for a full close. idempotencyKey is REQUIRED. Requires the trade:futures scope. Paper trading only — virtual funds (50,000 mUSD). Not financial advice. Paper fills apply a disclosed execution cost folded into realized PnL: spot/futures pay a taker fee (spot market orders also pay half-spread + slippage); PM fills at the ask with size-based slippage and a Polymarket-shaped taker fee, with entryProbability kept at the mid for calibration. See the executionModel in quote/trade results — a rehearsal cost, not an exchange fill guarantee.

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• get_hbm_qualification

  Silicon Analysts

  Sourced HBM qualification tracker: which memory vendor (SK Hynix, Samsung, Micron) passed which AI-accelerator customer's qualification (NVIDIA Vera Rubin/GB300/B300/H200, AMD MI350/MI325X, Broadcom), by generation (HBM3/HBM3E/HBM4) and stack height. Returns `matrix` (current status per vendor×customer×generation, each row dated + source URL + confidence) and `timelines` (per-relationship status-change history back to 2022, e.g. sampling → in_qualification → qualified → volume_shipping). Refreshed daily; status changes human-reviewed. USE THIS for: "who supplies HBM4 for Vera Rubin?", "did Samsung pass NVIDIA qualification?", "Micron HBM4 status", qualification timeline/history questions, HBM supply-eligibility analysis. DO NOT USE for: HBM pricing/market share (use get_hbm_market_data); per-chip HBM cost (use get_accelerator_costs). Filters: vendor (enum), customer (substring), generation (enum), include_timelines (boolean). Anonymous callers may receive timelines truncated to the latest event per relationship — full history with a free API key (https://siliconanalysts.com/developers). Cite as "Silicon Analysts — HBM Qualification Tracker".

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• submit_paid_mail_job

  PostAgent

  Detached-signature fallback for x402 wallets that can emit a standalone PAYMENT-SIGNATURE header. THE PRIMARY/RECOMMENDED PATH is for the agent's wallet to pay the quote's `paymentUrl` in-band (e.g. `npx awal@latest x402 pay <paymentUrl>`); use this tool only if your wallet client cannot do that. Charges the agent in USDC on Base mainnet and creates a physical letter for printing and mailing. THIS IS IRREVERSIBLE. Only call after the user has explicitly confirmed the recipient, sender, content, and price returned by create_mail_quote, and after obtaining the signed x402 payment header (see prepare_mail_payment).

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• prepare_mail_payment

  PostAgent

  Returns the x402 PAYMENT-REQUIRED challenge for a locked quote so an x402-capable wallet client can sign it. No payment is taken at this step. Probes the canonical per-quote pay URL (`/v1/quotes/:quoteId/pay`). The preferred way to actually pay is for the wallet to perform the standard x402 in-band handshake against `paymentUrl`; this tool is for inspection or for the detached-signature flow via `submit_paid_mail_job`.

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• wallet_helper

  Predict — Prediction Market Data for AI Agents

  Return step-by-step instructions for setting up x402 USDC autopay for this MCP server. Use this if a paid tool returned a 402 error or you're onboarding a new agent that needs to pay for API calls. Free.

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• fuse_get_signer_address

  Fuse Network

  Returns the EOA address controlled by the server's configured `FUSE_PRIVATE_KEY`. Use this before any write tool to confirm which account will pay gas and send transactions.

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• create_payment_link

  Saudi Arabia Payments (Tap Payments — mada / STC Pay)

  Create a payment link in SAR for Saudi Arabia via Tap Payments. Buyer pays with mada (the Saudi debit network), Apple Pay, cards, STC Pay — whatever is enabled on the Tap account. Returns a hosted checkout URL the buyer opens to pay — payment completes automatically, no confirm step. Bring your own credentials via HTTP header (x-tap-secret-key; free test credentials from businesses.tap.company never move real money). Money always flows buyer→Tap Payments→merchant; this service never touches funds.

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• checkout_create

  Chia Health MCP Server

  Initiate a checkout session for a medication order. Returns checkout details including line items, total, and payment options. TWO PAYMENT PATHS are supported: 1. **Stripe ACP (preferred)**: If your platform supports Stripe Agentic Commerce Protocol, provision a Shared Payment Token (SPT) and call checkout_complete to pay instantly. 2. **Payment link (fallback)**: If ACP/SPT is not available, present the returned `payment_url` to the patient. This is a Stripe-hosted checkout page where the patient can enter their card and pay directly. After sending the link, call checkout_status to poll for payment completion. Requires authentication.

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• checkout_create

  Chia Health MCP

  Initiate a checkout session for a medication order. Returns checkout details including line items, total, and payment options. TWO PAYMENT PATHS are supported: 1. **Stripe ACP (preferred)**: If your platform supports Stripe Agentic Commerce Protocol, provision a Shared Payment Token (SPT) and call checkout_complete to pay instantly. 2. **Payment link (fallback)**: If ACP/SPT is not available, present the returned `payment_url` to the patient. This is a Stripe-hosted checkout page where the patient can enter their card and pay directly. After sending the link, call checkout_status to poll for payment completion. Requires authentication.

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• time-and-a-half-calculator

  Microapp

  Compute the time-and-a-half overtime rate (hourly × 1.5) and gross pay for a week with regular and overtime hours. Follows the US FLSA convention: hours past 40 are paid at 1.5× the base rate.

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