"Developing a Bulk Email System" 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.
Contract-change authorization for AI agents: preflight a change to an API or MCP contract, get a signed decision, and verify the receipt offline. Only a granted change can proceed.
Traffic Parrot simulates APIs and messaging. Request or withdraw a trial, read docs, send feedback.
Real UI references for AI coding agents: iOS app screens, complete user journeys and website design systems (colors, typography, components and a ready DESIGN.md). Five read-only tools: find_ui_references, find_ui_materials, get_journey, list_collections, get_collection. Sign in with your UXKIN account; searching the library needs a UXKIN plan.
Run a GPU job under a hard dollar cap and collect the files it writes.
Spin up a complete OpenCode development environment on any Linux box — one agent-driven workflow, six tools, zero secrets.
Turn a written policy into rules a program can check, and get the same answer every time.
Scores code against a repo's own incident history, rolled into an 8 index Production Reliability Index (PRI). Exposes suggest_code, save_recommendation, and get_scan_report as tools.
Publish and update websites from your AI chat. Hosting for AI-generated HTML, live in seconds. Hostilo lets your AI assistant publish websites for you. Connect it once, sign in to Hostilo, and ask Claude, ChatGPT, Cursor or any MCP client to create a site, publish new HTML, or roll back a change. Every site gets a live HTTPS link on name.hostilo.app, and every publish keeps the previous version. No Git, no build step, no API key.
Create 3D device mockups, App Store screenshot sets and launch videos from your AI. Showoff.dev puts your screenshots on real iPhones, Pixels, iPads and MacBooks, sets camera and background, and exports App Store and Google Play sizes. Works with Claude, ChatGPT, Cursor, Codex and any MCP client.
A portable knowledge-graph memory you pass in and get back. No database. 4 of 6 free.
Read and build a CloudCrane workspace: datasets, field contracts, review queue, receipts, runs.
A design harness for AI coding agents: design systems, design principles, icons and UI review.
OPX is a buyer-side routing layer for x402 machine commerce. Before an agent pays a downstream provider, OPX ranks currently tested x402 services using recent paid performance evidence including success rate, latency, price, freshness and task fit, then returns the best provider plus independent fallbacks. Each routing decision costs $0.002 USDC on Base.
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/
Four tools to check, watch, diagnose and verify AI agents and MCP servers. Free, read-only.
Check a product CSV, handles, variant matrices and metafield keys. 4 of 6 free.
Risk-scan a diff, flag AI-generated-code tells, find secrets. 5 of 7 tools need no account.
Narrated demo and tutorial videos of your web app, from a guide or your coding agent.