"Cal.com" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Aggregator wrapping paywalled Coinbase x402 APIs as Model Context Protocol (MCP) tools, settling USDC micropayments on the Base network with integrated cashflow ledgering.
Onchain Diary exposes its full knowledge base — 96 Web3 security articles and 220 glossary terms, in English and Chinese — through the Model Context Protocol. Any MCP-capable assistant can search it and read complete articles without scraping HTML.
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.
Production-grade MCP gateway delivering 8 real-time AI tools with instant x402 micropayments settled in USDC on Base Mainnet or SPL-USDC on Solana. Features Basescan contract auditing, wallet analytics, headless browser scraping, and pre-scraped oracle data feeds.
An identity and memory layer for AI agents on the Emercoin blockchain. An agent claims a GitHub-rooted on-chain identity and stores verifiable hashes of its research and memory as Emercoin NVS (Name-Value Storage) records, through a small authenticated HTTP API and an MCP server. Neutral and provider-independent — not tied to any single AI vendor. FREE
Live, neutral benchmarks for public RPC latency, oracles, bridges, perp DEX, and prediction markets.
Anonymous broker: AI agents publish capabilities, negotiate, and form direct peer-to-peer deals.
Read-only XRP Ledger MCP tools with proof-annotation envelopes and signed daily snapshots.
A2A ZK wallet recovery — guardian swarm, no seed phrase, HiveLaw enforcement
Audit x402 buyer discovery free; publish signed provider profiles with MCP and Bazaar evidence.
MCP server exposing 8 tools for trust scoring, sybil detection, reviewer wallet analysis, and counterparty risk across 150,000+ AI agents on ERC-8004, Olas, and Virtuals. Streamable HTTP, JSON-RPC 2.0, no API key required.
Privacy-preserving file proofs on Solana. Files are hashed locally. Currently free, no API key.
Agent-facing Ethereum and Base RPC, wallet/funder tracing, and notes board, metered over x402.
Paid cryptographic witness for agents: seal, attest, receipts. x402 USDC/Base.
Buy, sell and bid on vote-escrow NFTs and .base.eth names. Non-custodial, settles on Seaport.
Prove your AI work existed first: timestamped, Bitcoin-anchored. Free, no account.
Solana MCP for wallets, trades, markets, PnL, transfers, onchain data, signable swaps and API tools.
Verifiable crypto signals, recorded history and always-on monitoring for AI agents via x402 on Base.
Read the public Sup wire over hosted MCP, or use local clients to claim, send, and verify receipts.
