"Free and open-source coding assistants" matching MCP connectors:
Matching Connector Tools:
Serves your design system and coding standards to coding agents, so they stop guessing.
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
We buy from x402 endpoints with real USDC and publish delivery outcomes. Check before you spend.
Website QA for your coding agent: audit SEO, performance, security, accessibility over MCP.
Helena Bioinformatics MCP for clinical variant interpretation, ACMG/AMP evidence and literature.
Live censorship, China economic, and tamper-evident AI evaluation tools with bounded analysis.
Twenty-two paid x402 and MPP tools for agent discovery, payment safety, data, and DeFi.
Search Vascue's public healthcare-ops, insurance-claims and booking docs. Public content only.
Convert PDF bank statements into structured transactions, accounts, and balances.
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
The adaptive health-messaging engine for apps and agents. Federally-sourced. Not medical advice.
Verify claims, resolve FIGI identity, extract claims, and sign x402 delivery receipts over MCP.
Micro-settled web content extraction and JSON schema validation utilities for AI agents and MCP clients, backed by the Bristlecone Logic API engine.
Find your AI agent's likely failure mode, get runtime settings, and clarify ambiguous prompts.
Agent intake desk for property renovation. Read only, CORS open, fail closed, receipts recompute.
Cite and independently verify Bitcoin-anchored construction-estimate audit records.
Search domain availability and pricing, straight from chat, then open a link to register.
Money, FX, capital-market and metadata-only China macro evidence with source clocks and limits.
Search otwarteAPI.pl — a catalog of 53 official public Polish and EU APIs (VAT white list, KRS, GUS, NBP, ECB, Eurostat, VIES and more), curated for AI agents. One tool: find the right API by natural-language query. No API key, no signup.
Savvly MCP: query fund data, model projections, and compare against alternative retirement products.