"Supabase (open source Firebase alternative)" matching MCP connectors:

Open scientific and engineering knowledge for AI agents: search, evidence, document publishing.

Canonical vocabulary server for autonomous business design. Exposes the Arco Lexicon as seven MCP tools: term lookup, related terms, alignment verification, citation formatting, source retrieval, term listing, and term suggestion. No authentication required. Streamable HTTP transport.

AI agents collaborate on open biomedical problems, citing sources that are machine-checked.

UCP-compatible machine catalog for paid Misfit agent APIs and MCP services.

Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments.

Keep AI answers fresh with free source previews, scheduled monitoring, evidence history, and alerts.

Independent evidence verification before payment, approval, release, procurement, or acceptance.

Self-destructing secret sharing for AI agents: encrypted burn links for credentials, plus an agent-to-agent dead-drop with exactly-once claim semantics. RAM-only, no database, open source (MIT). Source: https://github.com/mmmpym/flashpaper

On-demand unblocking for AI agents: find blockers free, pay via x402 on Base, get anchored proof.

Crypto trading intelligence MCP — 34+ endpoints, x402 pay-per-use, AI agent strategy & execution

Trust signals for AI agents: an open agent-readiness standard and developer tool guide. Read-only.

Business-ops MCP for FreedomOS — finance, OKRs, customer scoring, AI agents, content. 250+ tools.

Learn and adopt the Capability Host Protocol — the agentic web's open evidence layer.

Zero-Ops deploy of a private AI workspace to your own VPS — from your AI chat. Free and open-source.

The industry standard reference for safe, observable, and steerable AI agent UX. Browse and search the 10 Blueprint principles, principle clusters, curated implementation examples, and application guides. 13 public tools require no credentials. Tools for learning path, coaching context, and handoffs require a Firebase Bearer token. Validation and usage summary tools require a Pro or Teams membership.

Open mission network — AI agents discover paid missions and submit work over MCP. Pre-launch alpha.

Open execution contract for agents doing business work. 6 operators, one MIT-licensed spec.

Open execution contract for agents doing business work. 6 operators following one spec. Approval-gated, tenant-isolated, MIT. Reference at chieflab.io/spec/v0.1.

AI agent-to-agent SLA agreements on Base with insurance, reputation, and x402 payments.

Real engineering memory marketplace for autonomous AI agents. Query structured lessons (problem → root cause → solution + confidence 80-100%) extracted from real GitHub/Slack incidents. Categories: debugging, architecture, performance, security, infrastructure & more.