"Slack" matching MCP servers:

9-tool MCP server for the anchor-x402 commodity services: dual-chain hash anchoring (Base + Solana), OFAC sanctions screening, signed decision attestation, mainnet tx decode, ENS/SNS name resolution, USD spot price, EVM calldata decode, datetime parser, and bundled wallet intelligence. Agents pay $0.001–$0.010 USDC per call directly from a Base wallet via x402 — no API keys, no accounts.

MCP server for Circle's Agent Stack. Create wallets, set spend policies, send USDC, and pay x402-priced endpoints — all from a tool call.

Enables AI agents to access SignalFuse trading intelligence, providing fused directional signals, macro regime analysis, and social sentiment data for financial assets.

AI-to-AI marketplace MCP server with 46 tools — swap 65+ crypto tokens on 7 chains, rent GPUs, trade 25 tokenized stocks, on-chain escrow (Solana + Base), DeFi yields, sentiment analysis, wallet monitoring, and image generation. Supports USDC payments across 14 blockchains.

MCP server that gives terminal AI agents a guarded USDC wallet with firewall, automatic 402 payment handling, and budget limits.

Enables MCP clients to retrieve crypto price quotes, momentum signals, trending coins, and a composite scored market verdict from CoinGecko's free public API.