"Enhancing Prompt Engineering with MCP" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.
formcarry handles everything after your form is submitted: it emails you, auto replies to the person who submitted, filters spam, and delivers webhooks. You write the HTML form and set its action to a URL formcarry gives you. An agent can create a form, wire the emails and webhooks, and answer questions about the submissions, like how many signups last week.
Spec-driven development MCP server: 8 phases, bi-directional traceability, 7 quality gates.
Go MCP server for GitLab: 2 dynamic tools reach 1000+ REST/GraphQL actions. Free/CE, no paid tier.
Signed third-party verdict on what an npm package or file does when run. No key, no signup.
Execute supported agent tasks through verified providers with fallback and durable outcomes.
SEO and AI-search audit for websites, built for Uzbekistan (Uzbek and Russian sites). Checks on-page SEO, technical health (HTTPS, TLS 1.3, HSTS, HTTP/2-3, robots.txt, sitemap, broken links), AI-search readiness (GEO/AEO), speed and Core Web Vitals, content and social tags, and returns concrete fixes plus AI recommendations for title, description and H1 based on real search demand in Uzbekistan. Start an audit with start_audit, then fetch the result with get_audit.
Turn app screenshots into 3D device mockups, App Store sets and launch videos, straight from chat.
A portable knowledge-graph memory you pass in and get back. No database. 4 of 6 free.
Spot projects predicted to miss their deadlines, from an anonymous team confidence vote in Slack.
Validate and clean CSV before import. Find duplicates, missing values and invalid dates with row-level reports. Apply only the cleanup you request; files are not retained. Run view_csv_demo free without a key. Custom CSV: EUR 9 for 100 operations, valid 90 days, no subscription. Setup: https://check.orvel.dev/docs/
Dutch gross-to-net salary and social security (WW, WIA, IVA) calculation engine for 2026.
Run a GPU job under a hard dollar cap and collect the files it writes.
List, view, create, edit, delete, comment on, and see the history of Laraue Boards issues.
Discovery registry for AI agents: 660+ APIs, MCP servers and CLIs, each health-checked every 6 hours with real requests — full initialize + tools/list handshakes for MCP, real calls for APIs — plus response-schema validation that catches responses which parse fine but are missing a required field.
Turn a written policy into rules a program can check, and get the same answer every time.
Check a product CSV, handles, variant matrices and metafield keys. 4 of 6 free.
Thermal label MCP server: render, validate, debug and convert ZPL, EPL, TSPL and CPCL labels.
It connects with Smart Data models database with more than 1000 open licensed data models and helps you to create applications and systems interoperable with existing standards or real applications
Risk-scan a diff, flag AI-generated-code tells, find secrets. 5 of 7 tools need no account.
