"Understanding Call Hierarchy in Software Development or Programming" matching MCP connectors:

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

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.

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

Batch send SOL or any SPL token to 1000+ wallets via x402. AI agent payments on Solana.

BTC Decision Terminal for AI Agents — live vault-backed signals, on-chain proof, cross-chain swap. Verify in real time.

Evidence-based market data for AI agents deploying capital in DeFi. Empirical, not advertised.

Concentrated liquidity on Uniswap/Aerodrome (rebalance, compound, leverage) or single-sided lending.

Marketplace of pay-per-call APIs for AI agents. Top up once with USDC, then call any listed API - gasless, walletless, metered per request. Includes onboarded providers and hundreds of x402-native APIs discovered on-chain.

Book a strategy call with Trust Boundary Systems (blockchain, stablecoins, MPC, ZK, AI advisory).

Make money with x402. See which services are earning, find profitable gaps, and price your API right — backed by real on-chain payment data from 90K+ services and $46M+ in volume.

Production MCP server giving AI agents metered access to live Hedera blockchain data. Query token prices, screen identities, monitor governance, write tamper-evident HCS compliance records, and analyze smart contracts — all paid in HBAR micropayments per call.

Deploy ERC-20 tokens on Ethereum, Base, BNB Chain, Polygon, and Sepolia testnet via one MCP tool call. Returns a deployed contract address. $10 flat fee per mainnet deployment — same as human users. Free on Sepolia testnet. Requires an API key from https://avagenesis.com/api/agents/keys

Crypto tool MCP: search/trust/install-risk. Remote tools/call is x402 paid.

Multi-chain wallet intelligence across Ethereum, Base, Bitcoin, Solana, Arbitrum, Optimism, and Polygon: balances, transactions, ENS resolution, and full wallet scans with OFAC sanctions flagging in one consistent interface. x402 USDC on Base & Solana via Coinbase CDP facilitator, $0.001-$0.03/call. No API keys.

Check who your agent is about to pay over x402: real service, relayer, treasury, or buyer.

Deploy ERC-20 tokens on Ethereum, Base, BNB, Polygon via MCP. One call = deployed contract.

Multi-chain wallet MCP. 18 tools: balance, swap, bridge, stake, claim. Pay-per-call USDC (x402 v2).

MEOK ABCI Bridge MCP — read-only Tendermint / Cosmos blockchain query for agents. Built-in registry

Intelligence marketplace on Solana — 86 tools, 168+ endpoints, per-call USDC.

Trust & settlement for AI agents: DID, ZK reputation, audit, USDC/USDCx/USAD/ALEO. First DID free.