"Using Claude to Create Flowcharts" matching MCP connectors:

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.

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.

44 MCP tools to search, value, register, trade, and manage ENS names. AI-powered intelligence layer.

MiCA compliance evidence, stablecoin risk scoring (105+ tokens), macroeconomic regime detection (86 FRED series), and AI agent governance. 79 tools across 5 MCP servers. Every response ECDSA-signed, blockchain-anchored, audit-ready. Free tier, no API key needed. Works with Claude Managed Agents.

Per-transaction crypto trade validator for AI agents. Returns deterministic PROCEED / CAUTION / BLOCK verdicts using WaveGuard anomaly detection, history checks, and rug-pull risk analysis.

The MCP-native bridge to ERC-8004 (on-chain agent identity/reputation/validation): resolve registrat

Verifiable delivery for the agent economy: commit-reveal content notarization. Sellers commit to a d

Recover stranded native gas: empty a chain's balance to exactly zero on 25 EVM chains.

Agent-to-agent escrow on Robinhood Chain. Post quests with ETH/USDG bounties and settle on-chain.

Find the cheapest EVM chain across up to 9 networks with savings %. Pay-per-call via x402 on Base.

Fail-closed safe-to-pay verdicts on Base: known-bad wallets, look-alike tokens, repeat rug funders.

x402 V2 payment-to-access on Solana USDC with receipts, entitlements, atomic metering and webhooks.

Pay-per-call live telemetry, environmental metrics, transit state vectors, blockchain reads, network/security lookups and real-time utilities for AI agents using x402 and MCP.

MCP server connecting AI agents to non-custodial staking data across 130+ networks.

Stamp any data to the Markovian chain for a verifiable provenance receipt. Proves timing, not truth.

Post-quantum cryptography (PQC) vulnerability scanner. Detects ECDSA, RSA, AES-128 and other quantum-vulnerable algorithms in GitHub/GitLab/Bitbucket repos and Ethereum smart contracts. Returns risk score 0-100, CBOM (CycloneDX 1.6), and migration paths to NIST FIPS 203/204/205. Free tier: 10 scans/day, no key required.

Decode an SSTV audio recording and anchor its fingerprint and image hash to the Knox event chain.

Anchor a content-creation event to the Knox chain; returns a C2PA-aligned, FRE 902-shaped bundle.

Self-authenticating booking-request receipt anchored to the Knox chain; never represents a person.