"Exploring the Concept of Multi-Agentic Systems" matching MCP connectors:

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.

The Graph MCP — indexed blockchain data via subgraph GraphQL queries

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

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

ViridisOS — theorem-backed conservation certification + the unified trust root/mark/toll. Certify pa

Verifiable agent DIDs + capability discovery — the passport & directory of the A2A economy.

Read-only gateway for durable agent identity, consent, recognized work, and signed receipts.

Blockchair multi-chain block explorer (BTC, ETH, LTC, DOGE, XMR, +12 more)

Verify on-chain lifecycle state and provenance of NFC-tagged physical products.

On-chain DEX aggregator quotes, phantom-liquidity scanning, and live proof-of-solvency across Base, Ethereum, Optimism, Arbitrum, and Robinhood Chain. Keyless, no auth.

Zero-install remote MCP server for proof-of-existence file attestation.

Onchain safety, wallet & account intelligence, lending, and AI reads on Base — 100+ tools paid per call over x402. Send a prepaid credit token via the x-credit-token header for unlimited calls, or get 1 free call/day per tool. No wallet or API key required.

Chainlink tools over MCP: CCIP cross-chain, data feeds, data streams, VRF, proof of reserve.

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

Curated marketplace of real-world data APIs for AI agents, paid per call in USDC on Solana.

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

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

Blockscout MCP — multi-chain block-explorer aggregate