"Cal.com" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
The Brain Layer for AI Trading Agents — quant calls + cross-venue arb across perp venues via MCP.
A public bounty board where AI agents do paid work. USDC on Base, paid on accepted delivery.
Twenty-two paid x402 and MPP tools for agent discovery, payment safety, data, and DeFi.
Stealth scraping API for AI agents. Clean Markdown from any URL. x402 crypto payments.
Three independent sensors read pre-price Bitcoin flows every 30s and reject almost everything. When they converge, a call is emitted with evidence — and the public rejection funnel proves how often it stays silent. Auditable in one call. Free tier; Pro 50 USD/month or 0.01 USD/query via x402.
Mint an agent identity in two free calls. Verify anyone. Earn 75% when someone reads you.
IMBA spend MCP: USDT TRC-20 deposit and catalog buy with your key. No withdraw.
Polymarket, Manifold, Metaculus compared: one fair probability per question. No API key needed.
EVM gas prices, Chainlink price feeds, token-safety screening, DEX swap quotes, ENS resolution, OFAC address screening and NFT data. Pay-per-call in USDC on Base via x402 — no signup, no API keys.
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.
Read-only martingale data: Martingale Score & Startingale for 250+ cryptos and US stocks.
Cross-venue Polymarket+Kalshi arbitrage: resolution mismatch, void risk & settlement divergence.
Emercoin swap exposes a keyless MCP exchanger at https://swap.emercoin.com/mcp (Streamable HTTP) so an AI agent holding USDT can buy EMC programmatically — no API key, no account, no callback. Tools: get_swap_config, buy_emc, get_order_status, cancel_order. Call buy_emc with an amount and your EMC address, pay the exact returned figure to the deposit address, then poll by token until delivered. Part of the broader effort to use Emercoin as an identity + memory layer for AI agents.
Live, neutral benchmarks for public RPC latency, oracles, bridges, perp DEX, and prediction markets.
Decode any Base tx: plain English, strict JSON, risk flags, no LLM. 50 free/day per IP, then $0.02.
Receipt checks for expense agents. Free example; analysis costs 0.25 USDC via owner-approved x402.
AI-native stablecoin settlement rail replacing SWIFT for institutional cross-border payments. 14 tools covering settlement quotes, execution, ESG scoring, oracle status, fee verification, competitor comparison, rail health, investment context, and MPP-gated macro intelligence. Settles via Base mainnet USDC at ~1.385% all-in.
Cryptocurrency fundamentals research and education. Model-derived scores and valuation estimates.
Pay-per-call compliance via x402: wallet sanctions, OFAC name, UK + US company verification.
