Methods to Test API Endpoints MCP Connectors

Gemina FileTag A

Tag, rename, and enrich PDFs and images. Free tier: 1,500 tags/month, no credit card.

File Systems Image & Video Processing

1311

emem, the verifiable memory protocol for the physical world A

Shared, verifiable memory for AI agents and robots: signed tokens that resolve and verify offline.

Location Services Knowledge & Memory

15248

AI Design Blueprint A

Public agentic AI doctrine tools plus authenticated architecture, design, and spec validators.

AI & Machine Learning Autonomous Agents

291

Patch Tuesday A

Hosted endpoint for patch-tuesday-mcp: query Microsoft Patch Tuesday security updates (MSRC) with EPSS and CISA KEV enrichment. Free, no auth or API keys.

Security

11

excalibur-mcp A

FastMCP server for posting formatted content to X (Twitter) — Tollbooth-monetized, DPYC-native

Social Media Communication

7113

Computer-Use Agents API A

Run and manage H Company's Computer-Use Agents from any MCP client.

Agent Orchestration Autonomous Agents

6131

tts A

Hosted pay-per-use TTS: 54 neural voices, 9 languages incl. Brazilian Portuguese. $10 free credits.

Text-to-Speech Audio Processing

31

store A

Custom metal-print storefront: catalog search, product details, shipping, reviews. Read-only.

E-commerce & Retail Search

111

arifOS — Constitutional AI Kernel A

Constitutional AI kernel with 13 MCP tools, 888_JUDGE verdict pipeline, and VAULT999 ledger.

AI & Machine Learning Knowledge & Memory

81

fiscal A

Brazilian fiscal MCP server - issue NF-e, NFC-e, NFS-e, CT-e, MDF-e and DC-e via SEFAZ.

Government Data Legal & Compliance

341

TinyFn C

500+ deterministic tools for AI agents: math, conversion, validation, hashing, encoding, date/time.

Developer Tools

5721

AI Design Blueprint Doctrine A

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.

Documentation Access Autonomous Agents

291

PreClick — An MCP-native URL preflight scanning service for autonomous agents (formerly URLCheck).A

PreClick scans links for threats and confirms intent match with high accuracy before agents click.

Security Agent Orchestration Autonomous Agents

616

PreClick — An MCP-native URL preflight scanning service for autonomous agents.A

PreClick scans links for threats and confirms intent match with high accuracy before agents click.

Security Autonomous Agents App Automation

616

OneQAZ Trading Intelligence A

Live market data, signals, positions, and macro analysis for crypto, KR stocks, and US stocks.