"Free and open-source coding assistants" matching MCP connectors:

Agent intake desk for property renovation. Read only, CORS open, fail closed, receipts recompute.

Search domain availability and pricing, straight from chat, then open a link to register.

Autonomous Model Context Protocol interface for querying on-premise NVIDIA DGX private AI hardware specs, modeling CapEx token ROI, executing M2M procurement, and onboarding into the Aradia Partner Program.

Buy and manage travel eSIM data plans in the conversation. Pay by card (Stripe) or USDC over x402.

Goal decomposition where every "done" is proven by evidence and checked by a judge.

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.

Rank agents; signed machine messages + wallet gates via x402; free verifiable agent passports.

Riddle.com is a no-code platform for quizzes, surveys, personality tests, prediction games, interactive graphics, and leaderboards. Use the MCP to create, edit and analyze content.

Scan/purge hidden text & score web domains: TLS, DNS, headers, speed. Free scans, $0.01 actions.

Structured habitat data and advisory tools for aquariums, marine tanks, terrariums and paludariums.

A complete color workflow over MCP: mix, convert, harmonize, measure, and remember palettes.

Ask your AI assistant a cost question. Get allocation, correlation, and explanation in one response. Costory connects Claude, Codex, or Cursor to normalized cost data across AWS, GCP, Azure, Datadog, OpenAI, and Anthropic. https://costory.io Free trial 14 days, 250 USD / month up to 10M Spend

SEC dilution data, live market data, and news for U.S. equities, with point-in-time as-of queries

Plain-English git via MCP: 22 tools to branch, commit, push, and tag. No git jargon.

Cello MCP server to launch and manage your User Referral and Partner program — for developers and growth teams.

Access the latest technology news from NewTqnia.com through the Model Context Protocol. Search articles, retrieve structured news content, browse categories, tags, and timelines, and access authoritative technology reporting for AI assistants, research, and automation.

Build, edit, host, and publish websites from AI assistants. Setup: https://mcp.orivox.org/

Live multi-asset market data for AI agents with provenance, starter credits, x402, and examples.

Structured iGaming reference: slot specs & RTP variants, providers, regulators, news and jobs.

Control Plane (controlplane.com): deploy and operate workloads across AWS, GCP, Azure, and more.