Finance

17 DeFi + RWA tools — PumpFun, wallet PnL, Meteora LP, Robinhood Chain stocks — paid via x402.

Unofficial safety-focused MCP server for Kalshi market data and explicitly authorized trading

Proposed reference implementation of environment.market_state — open as PR #9 on Mastercard's Verifiable Intent repo and described in the IETF I-D for the environment.* family. Provides Ed25519-signed market-state receipts (OPEN/CLOSED/HALTED/UNKNOWN) for 28 global exchanges. Autonomous agents gate…

Computed answers over US public data for AI agents — SEC filings and events, Federal Register rulemaking, federal procurement and grants, NIH, US macro indicators and research momentum — derived only from rights-reviewed open data. Most identifier lookups, glossaries and feeds are free with no key;…

CAI.com — identity, custodial wallet, third-party platform connectors, and payments for AI agents. Primary integration: HTTPS Edge API + optional MCP (@cailab/mcp). See skill.md for policies, scopes, and gap_id honesty.

Prior art for AI agents. Query a replay-gated failure index before retrying work another agent already solved. V2 supports optional Ed25519 signatures. After learning a fix, ingest locally and share only by choice. Connect via MCP stdio (`claimidx-mcp`).

Geopolitical conflict risk, political events, and maritime traffic data for AI agents

Secure Open Finance Brasil MCP server with typed tools and a credential-free mock mode

GFS ensemble weather signals for prediction market edge detection across 12 cities

Smart money tracking — discover, score, and analyze top Polymarket wallets

Prediction market risk management — Kelly sizing, EV calculation, drawdown protection

Prediction market strategy backtesting with real on-chain Polymarket data

Model inventory and governance: trace deployed models and their dependencies as an append-only log

MCP server for Kalshi prediction markets: native RSA-PSS auth, rate limiting, demo/prod safety.

Real-time Bitcoin regime-switch signals from three independent sensors. Free tier available.

AlgoVoi crypto payments via MCP: USDC + native on Algorand, VOI, Hedera, Stellar.

Secure Python sandbox for data optimization and Matplotlib rendering via x402 microtransactions.

Consolidated Bitcoin market data for AI agents: BBO pricing, ML signals, funding skew, briefings.

AI agent access to Asian crypto markets. Korean exchange routing and x402 paid APIs.

Two free public read-only tools expose the sandbox authority contract and produce short-lived assessment receipts from mandatory Seiche and Undertow context plus conditional LiquiLens context. No account, API key or payment is required; x402 and every execution capability remain disabled.