"Querying a PostgreSQL database using natural language input" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check that your AI is being logical. Free tool that mathematically catches contradictions in agent reasoning. No account needed. Also offers paid guardrails that converts natural language to formal verification proofs, that anyone can check succinctly.
Drive real Android & iOS devices and web browsers from natural language for mobile + web QA. 290+ tools across device control, app management, automation sessions, browser automation, and flow recording / replay. Bearer-auth — get a token at robotactions.com → Profile → API Tokens.
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
UI Verify is visual regression testing built for coding agents. Connect the MCP server and your agent (Claude Code, Cursor, Codex) pulls a pull request's UI changes into the conversation, views each visual diff, reads the AI judge's verdict of regression vs intended change, and accepts the intended baselines - all over MCP.
Give AI assistants the context behind client website feedback. Read comments, screenshots, replies, element details, and developer briefs; organize priorities, update statuses, and export feedback from authorized projects. Coding agents with repository access can investigate issues and prepare fixes for review. Connect through Streamable HTTP and browser OAuth using a Simple Commenter account.
Generate synthetic random user data for testing, demos, and development without using real persona.
Free pilot: checked JSON Schema regression examples for a limited subset; no compatibility proof.
Score any URL against a real design contract — 42 checks, A-F grade, token + motion validation.
Runs your code against a contract; HELD or BROKE at the exact input. Deterministic. 0.10 USDC/call.
Lint a SKILL.md for frontmatter, structure, secrets and size. All 6 tools free.
Risk-scan a diff, flag AI-generated-code tells, find secrets. 5 of 7 tools need no account.
Explore Upforge services and evidence, or submit a prototype for a human-approved static fit check.
A deterministic verification engine for agents. Proves a fix: fails on the old code, passes on new.
Prompt evals over MCP: run a prompt on your dataset, score each output 1-5 with an LLM judge.
Test an email before it goes out: a disposable address, 41 checks with RFC citations, a fix plan.
Whether a registry MCP server works for a stock client, and what changed in its tools. Free, no key.
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
Discover a site's pages from its sitemap and sample them for WCAG and prompt-injection risk.
Probe a signup URL you own and score whether an AI agent can sign up unaided.
Scan a web page's markup for the WCAG failures ADA demand letters cite most often.
