"Accessing or using Outlook mail services" matching MCP connectors:

Neutral fairness computation for agents: two or more parties submit sealed inputs, a published deterministic algorithm runs (fair division, verifiable random selection, Shapley shares), and every party receives an identical signed certificate anyone can re-run and verify for free.

Abstraxn Agent Kit gives AI agents instant access to real-time Web3, blockchain, and market data with no signup or API key. Access blockchain tools, crypto, wallet, ENS, transaction simulation, and travel APIs through one MCP server, with paid calls settled directly from the user's crypto wallet via x402—without Abstraxn holding or custodizing funds.

Pre-transaction token risk checks for autonomous agents. Read-only; never signs or moves funds. Paid per call in USDC via x402. Supporting Base, Solana, Ethereum, Arbitrum, BSC and HyperEVM

Pay-per-call safety checks for AI agents: screen a crypto address or URL before you transact.

Per-transaction crypto trade validator for AI agents. Returns deterministic PROCEED / CAUTION / BLOCK verdicts using WaveGuard anomaly detection, history checks, and rug-pull risk analysis.

Non-custodial USDC checkout on Solana for AI agents and humans. Six tools inspect a public checkout, prepare one-time or recurring payments under a hard USDC ceiling, and read payment or subscription status, always returning unsigned transactions for the caller's own wallet to sign so Rendben never holds funds or keys.

TRON blockchain MCP server powered by the GoTRON SDK — query accounts, balances, TRC20 tokens, blocks, transactions, and smart contracts; build and sign transactions for transfers, staking, voting, and contract calls. Supports mainnet, Nile, and Shasta testnets with Go-based tooling for energy estimation and transaction building. Available via stdio or hosted Streamable HTTP

Discover and purchase four Base Sepolia test-USDC services through the public Wever Pay MCP.

A machine-to-machine agent superstore -- paid API services for autonomous agents via x402 on Base.

Nine-chain onchain intelligence for AI agents. The verifiable proof stream is free. Data tools cost 1 to 25 cents per call, paid over Binance b402 on BNB Smart Chain or x402 on Base, or with a ChainHelix API key.

Concentrated liquidity on Uniswap/Aerodrome (rebalance, compound, leverage) or single-sided lending.

Screen an Ethereum address or ENS name for on-chain reputation risk, sanctions, and reasoning.

Pay-per-call agent tools via x402 (USDC on Base): chat, prices, funding, RNG. No account or keys.

Check a Base contract, transaction or web page before you act. Free pricing, paid per call in USDC.

Rent verified subdomains by the hour, day, or month. Free 24h trials, x402 USDC on Base.

x402 data & AI gateway: 194 services + AI Gateway free data (save 50-90% tokens).

Read-only MCP for Rialto quotes and swap preflight on Robinhood Chain. No signing or broadcast.

The only x402 MCP server for Robinhood Chain (chainId 4663) - 147 onchain, trading & AI tools.

Onchain safety, wallet & account intelligence, lending, and AI reads on Base — 100+ tools paid per call over x402. Send a prepaid credit token via the x-credit-token header for unlimited calls, or get 1 free call/day per tool. No wallet or API key required.

OpenAI-compatible LLM MCP (7 tools); chat via balance key or x402 USDC on Base