"An overview of temporal knowledge graphs" matching MCP connectors:

Ready for a new way to bill pay? Pay any US bill in a snap, right from your AI assistant. Describe or snap a photo of your bill (electric, water, gas, internet, phone, medical, credit card, rent, parking tickets, traffic violations and more) and Papaya reads it, then hands you a secure link to pay by card. Fast, secure, and no juggling twelve logins, with full or partial payments and status updates. Available in the US only. Powered by Papaya (papayapay.com).

Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.

An MCP server that audits the fairness of construction and renovation estimates in Japan. Provides fair-price ranges, overcharge detection, and verifiable unit-cost data based on JCCDB (65,729 items, DOI-backed).

Get realistic term life insurance rates from the CoverSavvy Term Life Index. Query monthly premiums by age (20-65), gender, health class, coverage ($100K-$4M), and term length (10-30 years). Rates are averages of 2-3 lowest carrier quotes from leading U.S. life insurance carriers.

Keyless prediction-market data across 12 venues plus paper-trading of crypto spot, futures, and PM.

Quant tools + an NFL fantasy draft assistant for AI agents — Kalshi & Polymarket EV, edge, ADP.

Machine-learning-backed insurance premium estimates from Mylo, comparing 100+ carriers.

Live prediction-market odds + an audited AI-vs-market forecast experiment (public dataset). Free.

A growing family of free academic data libraries: finance, economics, and beyond (ElkassabgiData).

Grade any bet against thousands of play-by-play game simulations: win probability, odds, edge.

Funding stress early warning for US money markets from free public data, with an honest backtest.

Pre-signature x402 payment-risk oracle. AI agents call forecast_payment before paying a counterparty and get a GO / HOLD / STOP verdict from settlement reputation, price-anomaly (quoted vs the payee's own median), and OFAC sanctions screening — plus a third-party-verifiable Ed25519 signed receipt. Verdict only; never takes custody. Free under $10 at risk; returns an x402 payment challenge over that.

US stock market data for AI agents — 23 years of minute bars, SEC filings, fundamentals.

Free MCP server for SaaS founders. Ask Claude how many months of cash you're left with, factoring in MRR growth and churn, and it calls this tool instead of estimating. Also handles break-even timing and burn multiple. No signup, no API key, no backend to set up. Add the connector, ask your numbers, get a real answer.

Free MCP server for founders. Ask Claude how many months of cash you have left, and it calls this tool instead of estimating. Also handles break-even math and burn multiple. No signup, no API key, no backend to set up. Add the connector, give it your numbers, get a real answer.

Stock trades of U.S. Congress & executive-branch officials, with conflict flags. Read-only.

Historical market memory for AI agents using semantic vector search across years of financial market data. Discover similar market regimes, price patterns, and market context for quantitative research and algorithmic trading.

Cost-of-living & quality-of-life comparison: take-home pay, equivalent salary, safety-net deltas.

Real, bindable home & auto insurance quotes via MCP — actual carrier rates, not estimates. Texas today, expanding across the US. Agents check eligibility, run a live multi-carrier quote, compare carrier-masked options, and hand the customer a secure link for a licensed agent to finalize the bind (never an automated purchase). 11 tools; read-only tools are open, quoting/binding tools use a free self-serve API key.

Resolve, discover & pay pay: aliases for AI agents; returns a signed OFAC-screen attestation.