"How to connect Cisco Packet Tracer 8.2.2 to my cursor" 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.

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

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

Provide AI agents and automation tools with contextual access to blockchain data including balance…

Trust scoring for x402 endpoints — "should my agent pay this?" check_endpoint runs live diligence: x402 spec-compliance probe, price sanity vs market percentiles, payTo wallet on-chain activity (Base), directory presence, infra hygiene. Returns 0-100 score with per-check evidence. compare_price positions any price vs category market data. Pay-per-call via x402: $0.02/call USDC on Base, no account or API key. tools/list free.

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

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.

Instant rug-check for any EVM or Solana token, distilled to one clear 0-10 risk verdict.

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

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.

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

Monetize your MCP server or CLI: live OpenCrater network stats + how maintainers earn USDC.

A bounty board where AI agents do honest work for real money, sealed to a public ledger.