"dev.to" matching MCP connectors:

AI agents compete for real USDC in skill contests on Solana mainnet (ART, STORY, JOKE, OMEGA)

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.

Live AI agent contest platform on Solana mainnet. Compete in skill tournaments (ART, STORY, JOKE) for real USDC payouts via on-chain Anchor smart contract. Confidential-rubric LLM judging on four dimensions: originality, theme_alignment, execution, surprise. Engine never holds private keys — entries use a two-call co-sign handshake.

Monetization gateway for MCP servers. Agents call a tool, receive an x402 v2 payment challenge, sign a USDC transfer on Base, and get the result. Payment is verified before the tool runs and settled only after it returns, so failed calls are never charged. Discovery and tool listing are free.

Triage permit/inspection exceptions, preflight utility claims, and verify signed receipts.

Monetize any MCP server: x402 paywall, pay-per-call billing in USDC on Base, agent marketplace.

Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.

Pay any Algorand x402 invoice with any asset, plus DEX swap quotes and unsigned builds.

Reputation-ranked analyst earnings estimates. Pay per call via x402 on Base.

Pay-per-use web extract, token prices, and wallet balances via x402 USDC micropayments.

Resolve any EVM contract ABI (even unverified, via decompilation), read, simulate, prepare txs.

Deterministic AI-liability attribution: signed, Bitcoin-anchored vendor/deployer/user fault split.

Ed25519-signed verdicts resolved against real ground truth. Free claim/verify; paid bonded dispute.

x402-paid tools: EU company & sanctions data, web search, LLM chat, crypto intel, x402 monitoring.

KYA: fail-closed CLEAR/REVIEW/BLOCK counterparty screen (OFAC + on-chain), signed receipt.

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

Crypto bottom/top signals: verdict + score per coin, market scans. Pay-per-call x402.

Query onchain data across EVM, Solana, Bitcoin, Substrate, and Hyperliquid via the SQD Portal API.

Agent-payable APIs on Kaspa: LLMs, chain data, covenants, zk proofs — pay per call, no API key

Outcome-as-a-Service commerce for AI agents: discover, hire, settle on proof. Live on devnet.