"Projects that showcase advanced GitHub repository search techniques" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
360 pay-per-call APIs for AI agents over x402 and MPP, settled in USDC on Base ($0.001-$0.25 a call, no account or API key). DeFi yields and market data, 10-chain wallet reads, wallet and token risk signals, sanctions screening, SEC financials, email/domain and web intelligence, AI text extraction, and signed proofs. Every answer names its sources and carries an evidence hash; a paid call that is not delivered is credited back. Built and run by UnyKorn LLC.
Search and read the Goldsky documentation from any MCP client. Goldsky provides onchain data infrastructure on 150+ chains, including Ethereum, Base, Solana, Hyperliquid, and Elysium: - Edge RPC: managed JSON-RPC. - Feeds: REST APIs for wallet balances, transfers, and token prices with USD values, plus Polymarket and chain datasets. - Subgraphs and Turbo pipelines: index and stream onchain data. Pay per request over x402 with USDC and no account, or use an API key.
Pre-trade token safety check for AI agents. Simulates a sell before you buy, then returns one low/medium/high/unknown verdict with the signals behind it: sellability, buy/sell tax, liquidity depth, pair age, same-ticker impersonation, owner powers from bytecode. Ethereum, BSC, Base, Solana. Fail-closed - a check that cannot run answers unknown, never low. Publishes its own measured error rate with the benchmark harness in the repo. Free, no signup, no API key, MIT.
Remote MCP server for crypto trading signals and the public ledger that scores them, losses included. Read tools: open signals, the signal ledger (matured wins and losses), signals cancelled by the BTC regime veto with the outcome they would have had, market snapshot and ticker for scanned Binance symbols, the scheduled BTC chart read, and news headlines. The public read tools work without a key. With a free API key from ribqa.com: your own bots and strategies, and rate-limited strategy backtests. No tool places, simulates or cancels an order. Free during beta.
Search and read the Celo developer documentation
Skavio LLC provides 18 hosted MCP tools for native Circle USDC payments via x402 v2 on Base and Solana: transaction verification, recipient/amount matching, blockchain evidence PDFs, DNS/TLS audits and agent utilities. Discovery and status tools are free; paid MCP calls require explicit buyer wallet authorization. The separate standalone Base-only HTTP APIs include USDC Verify (0.02), Match (0.03), Evidence PDF (0.05), and four DeepSeek-only web operations: Fetch (0.01), Search (0.02), Extract (0.02), Extract + Analyze (0.03 USDC). Those HTTP routes are not additional MCP tools. Evidence PDFs are not tax invoices. Docs: https://getskavio.com/x402/docs/ ; seven-route discovery: https://getskavio.com/.well-known/x402 ; support: support@getskavio.com ; privacy: https://getskavio.com/privacy/ ; terms: https://getskavio.com/terms/
Search and book 3M+ hotels in 200+ countries. Agents pay per reservation in USDC on Base over x402. Hosted, no auth.
Check before money moves. Lorg Check tells an AI agent, or you, whether a token is a trap or an address is unsafe to pay, on Base and Ethereum. In live tests on new launches it blocked traps that GoPlus and Honeypot.is missed. Call check_token before buying or swapping into a token: it simulates a real buy and sell-back through the token’s own pool, reads what the creator can still do, who can pull the liquidity, and whether the creator was paid by a wallet behind earlier rugs. Call check_address before sending funds: sanctions, scam labels, EIP-7702 sweepers and address-poisoning look-alikes. Every answer is signed and says proceed, limit_exposure or do_not_proceed, with a one-line summary to show the user. Free key by GitHub sign-in, or connect with an API key.
Memecoin screener, backtests, exit alerts, wallet traces + web search, enrichment, 50+ tools (x402)
Pay-per-call tools for AI agents, paid in USDC on Base or Solana. Web search, page and PDF reading, crypto news, Hyperliquid perps, market pulse, Chainlink price history, token checks, SEC filings, weather and more. Free calls every day, and a failed call costs nothing. Works with Tollkit Wallet.
Timestamped proof that AI outputs and data existed, anchored on the Privi blockchain.
Block an action that a signed mandate does not permit, at the moment the action happens. Checks amount, payee, audience, currency, window and intent in fixed order; 100 checks a day free, then 0.005 USDC per call over x402 on Base mainnet.
> TradingMCP puts a market analyst inside your AI assistant. Paste one URL into Claude, ChatGPT, Cursor, VS Code or any MCP client and ask in plain language: screen for breakouts, run a multi-timeframe analysis, backtest a strategy with walk-forward validation, scan for smart-money and volume signals, or get a one-prompt morning market brief. In clients that support MCP Apps, price charts and the Markets panel are drawn right in the chat. > 40+ tools covering crypto (real-time), stocks, ETFs, FX, futures and commodities across major global exchanges. > Hosted, nothing to install: Pro $9/month (2,500 tool calls) or Pro+ $29/month (10,000). Paid upfront with a 14-day money-back guarantee; your API key arrives right after checkout. > Built on the open-source tradingview-mcp core (MIT, ~5k GitHub stars): self-host it free, or use the hosted version with zero ops. > For research and education, not financial advice. Not affiliated with TradingView
17 pay-per-call web, finance, legal and onchain utilities for AI agents: crypto readers and deployer intelligence on Base, SEC EDGAR search and company filings, OFAC sanctions checks, insider transactions, 13F holdings, and multi-jurisdiction caselaw and legislation search. Pay per call in USDC on Base via x402 or MPP - no account or API key needed.
AI agents that watch DeFi positions: read a wallet report, draft agents for the owner to sign.
Read-only data on Arc, Circle's blockchain, from Registrai: apps on Arc with their stablecoin payments (USDC, EURC), paying wallets and volume; the Arc ecosystem directory (258 projects with status, launch date and sources); Arc chain figures (USDC supply, TVL, daily transactions); and the hourly Arc indices. No key, CC BY 4.0. Website and method: https://builder.registrai.cc
Identity for AI agents that arrive on their own: a certificate of birth, number and date. Free.
Pay-per-call agent tools: PDF, OCR, translation, news search, prediction markets, web, chain reads.
Official community MCP server for the Radix DLT network. Inspect on-ledger entities (accounts, components, packages, resources, validators), search and read curated developer docs, validate and preview Scrypto transaction manifests.
Search and license 5,000+ fully cleared music tracks via MCP. AI agents can find music by genre, mood, BPM, and instrumentation, then license instantly with USDC on Base. No human in the loop. Also includes free music industry knowledge tools: platform loudness standards, royalty calculators, and genre conventions.
Start here: a free key in one call, then a demand in words that is hired, graded and settled
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.
Cited Bitcoin coordination record search (~783k). Lightning. MCP. Not prices/chain analytics.
AgentBridge is the only MCP server that gives AI agents access to structured China knowledge assets—university reports, industry briefings, policy analysis, and real-time web content—through x402 micropayments on Base. Everything is machine-readable, pay-per-use, and settled in USDC.
Pulse Verity — crypto index prices that come with a PROOF.
Pre-spend trust for AI agents that buy: check x402 services and product listings before paying.
Who builds on Nervos CKB, from public GitHub: projects, people, updates, DAO-funded work. Read-only.
Search settlement-verified x402 APIs for free. Pay providers in USDC on Base, Solana or Algorand.
AlphaGrowth is a crypto growth firm that grows protocols' TVL and liquidity and publishes free data.
NCTR Alliance rewards — search bounties, check earning rates, and discover communities.
