"Signal" matching MCP servers:

MCP server providing Polymarket weather-market bucket-transition signals for AI agents, with free city/signal inspection tools and paid signal bundles via USDC on Base using x402.

Integrates usage-based billing into AI coding tools, enabling meter usage, signal verification, and billing management via the ClockNext API.

Enables AI assistants to parse, validate, send, and inspect X12 EDI documents via the SignalEDI Core API, with optional QuickBooks integration and a demo mode for keyless local testing.

Paybond Kit for Python is the PyPI package for tenant-bound Paybond integrations and delegated agent spend controls. It opens hosted Gateway sessions, verifies capability tokens, authorizes tool-call spend, signs intent and evidence payloads, uses Stripe Connect, Stripe ACH Direct Debit, or x402 / USDC-on-Base settlement rails, reads tenant-scoped Signal, fraud, ledger, protocol, and A2A data, and

Enables Claude Desktop, Cursor, and autonomous AI agents to discover, score, and purchase exclusive off-market pre-probate and inheritance property signals before court filings, with per-lead exclusivity, zero PII at rest, and Base L2 USDC machine settlement. Provides tools for inventory search, signal discovery, machine checkout via HTTP 402, on-chain settlement verification, and reservation status checks across 44 states.

Enables Alexa+ agents to purchase x402-protected digital resources while a human retains control over budget, approval, and wallet signing via MCP tools.

Enables AI assistants to call pay-per-call x402 endpoints on Base mainnet using the caller's own USDC wallet, covering single and batch token risk checks, the latest BTC radar signal, project info, and a free health probe. Payments are EIP-3009 signed with a configurable per-call spending cap, and any quote with an unexpected payee, network, or asset is refused before payment.

Enables AI agents to discover, evaluate, and call any x402 API service with automatic USDC payment, including tools for wallet setup, service catalog browsing, recommendations, health checks, and direct API calls.