2026-W43 market review — 1 new deployment, 1 protocol update

Weekly automated review. Changes this run:

• Ankr x402 Payments on Monad (new deployment, live): Ankr launched pay-per-request blockchain infrastructure on Monad mainnet on October 15. AI agents can access RPC data (decoded transactions, event logs, balances, contract metadata, token prices) and MCP-compatible agent tools, paying per call in USDC via the x402 v2 protocol with no account or API key. Uses Ankr's open TORPC spec and Monad's x402 facilitator for settlement.
• Stripe MPP (protocol update): Re-verified Stripe's machine-payments documentation. MPP now supports stablecoin settlement on Solana (USDC) in addition to Tempo (USDC.e); x402 remains on Base. SPTs are available to businesses in the US, Canada, and select European countries; stablecoin payments are available in 30+ countries. API version remains preview. Updated rails, settlement description, and deployment chains. Status kept at beta.

Also noted this week:

• Privy + Ripple XRPL wallets (October 13): Privy partnered with Ripple to bring programmable agent wallets to the XRP Ledger with x402 payment support. T54 operates a mainnet x402 facilitator on XRPL. Not added as a deployment (wallet infrastructure partnership, not a specific pay-per-request service).
• OKTO Agentic Pix (October 19): OKTO launched Agentic Pix in Brazil — an AI agent completes Pix transactions inside chat conversations via OKTO's Biometric Pix rail. Not a tracked protocol (product built on Brazil's existing Pix infrastructure).
• Circle CPN Managed Payments for agentic payments (October 19): Circle blogged about using CPN Managed Payments to accept agent payments in USDC, with per-merchant sub-accounts and fiat settlement. Extends Circle's existing infrastructure rather than introducing a new protocol.
• Mastercard Agent Pay Trust Framework intelligence services (October 8–9): Mastercard expanded Agent Pay with a probability score for identifying agent-initiated transactions and behavioral/fraud signals. Covered in W42; no additional protocol changes.