"How to connect to a database" matching MCP connectors:
Matching Connector Tools:
Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.
Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.
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.
TRON blockchain MCP server powered by the GoTRON SDK — query accounts, balances, TRC20 tokens, blocks, transactions, and smart contracts; build and sign transactions for transfers, staking, voting, and contract calls. Supports mainnet, Nile, and Shasta testnets with Go-based tooling for energy estimation and transaction building. Available via stdio or hosted Streamable HTTP
Provide AI agents and automation tools with contextual access to blockchain data including balance…
Prove a real, unique human performed an action; mint a signed, verifiable Proof-of-Human credential.
Gasless cross-chain for AI agents: 25 nodes incl. Solana & native Bitcoin. One signature, no gas.
Verify a persona's DID-signed identity and query value-based judgment — advisory only, no actions.
Stamp any data to the Markovian chain for a verifiable provenance receipt. Proves timing, not truth.
Resolve any EVM contract ABI (even unverified, via decompilation), read, simulate, prepare txs.
Self-authenticating booking-request receipt anchored to the Knox chain; never represents a person.
Neutral W3C DID/VC identity and reputation oracle for AI agents (did:key/did:web, eddsa-jcs-2022).
Check who your agent is about to pay over x402: real service, relayer, treasury, or buyer.
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
Blockscout MCP — multi-chain block-explorer aggregate
Real-time on-chain coordinated wallet detection for Solana tokens. Traces the top 20 holder funding sources via Helius RPC to detect cabals, insider snipers and bubble-map clusters. Returns a cabal confidence score 0–100. $0.05 USDC per query, paid natively on Solana. No API key, no account, no subscription.
Batch send SOL or any SPL token to 1000+ wallets via x402. AI agent payments on Solana.
Solscan MCP — Solana block-explorer API (Pro v2)