"Amazon Pay" matching MCP servers:

MCP server that lets AI agents discover and pay for .agent services using USDC over x402, with daily budget controls and payment link creation.

9 tools, Lightning-gated. Pay per call. For agents that need verifiable signed actions with an audit trail. Nostr event signing via daemon Publish events to relays Create Lightning invoices Action receipts — signed proof of agent actions Identity attestation

USDC payments for AI agents on Base. Direct transfers, pre-funded tabs, x402 paywall handling, and service discovery.

MCP server with paid_fetch, list_merchants and budget_status tools: AI agents pay x402 APIs in USDC on Base inside an owner-signed, on-chain budget, so a prompt-injected agent can't overspend or pay an attacker.

Get the best swap quotes across Uniswap, SushiSwap, Aerodrome with pay-per-call via x402 (USDC on Base).

Live gas prices with gwei tiers, USD cost estimates, and congestion level. Time your transactions perfectly with pay-per-call via x402.

Provides Solana priority fee estimates at 6 levels for transactions, with pay-per-call micropayments via x402.

Enables agents to resolve ENS names to Ethereum addresses and reverse-resolve addresses to ENS names, including avatar URLs, through a pay-per-call x402 micropayment API.

Resolves prediction market events with confidence scores by aggregating news, price feeds, and web data, using pay-per-call x402 micropayments.

AI agents that hire other AI agents — and pay in SOL. Decentralized agent marketplace via Nostr + Solana.

Enables AI models to interact with the Lightning Network by providing an MCP-compliant API to pay invoices.

Enables AI agents to pay per tool call in USDC via the x402 micropayment protocol, with no API keys or subscriptions required.

Lets agents pay x402-protected endpoints privately on Stellar using zero-knowledge proofs, with tools to create wallets, deposit funds, and pay endpoints while revealing only a nullifier.

MCP server exposing AIMarket's verifiable oracle capabilities (Platon VRF, Chronos VDF, LUMEN reputation) as agent-callable tools with pay-per-call.

Trust infrastructure for AI agents on Base. DEX Spread Oracle (live Uniswap V3 prices), on-chain escrow, insurance pool, and collective knowledge base. 7 smart contracts. Pay-per-query via x402 micropayments in USDC.

MCP server for OrcaTrace, a pay-per-call Polymarket intelligence feed for AI agents. It provides tools to track smart money, whale entries with calibration, market repricings, and digests across 42K prediction markets, with payments settled via x402 on Base.

Provides AI agents with direct access to the Ray Group DeFi UX rubric, named patterns, and cognitive-bias glossary for grounded UX assessments of DeFi protocols.

An MCP server that provides real-time web search to AI agents via a pay-per-search USDC microtransaction system.

PayQL is an MCP server that lets any AI agent query The Graph and pay per query in USDC — gasless, keyless, bring-your-own-wallet.

A wallet for AI agents: test funds, payments, paid APIs and escrow on Aether. Give an AI agent its own wallet on Aether, a proof-of-work chain with post-quantum (ML-DSA-44) signatures. The agent gets an address and testnet funds in one step, then sends and receives AETH or USDC under per-payment and daily limits you set. It can pay for APIs that answer HTTP 402, sell its own, rate the services it