"Resources for Learning or Writing Code" 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.
MCP-native AI browser testing for coding agents. Submit a URL + goal, get back action trail, bugs, screenshots, and WebM video your agent patches from directly. 43 tools, 12 AI evaluation personalities, combo tiers with auto-pause-on-bugs, throwaway email + SMS inboxes.
Traffic Parrot simulates APIs and messaging. Request or withdraw a trial, read docs, send feedback.
Connect Claude, ChatGPT, Cursor or any MCP client to Ybug. Read bug reports with screenshots, console logs and network requests, then triage them in chat.
Audit public webpages and supplied markup for HTML, CSS, SEO, JSON-LD, and link issues.
Deterministic preflight for FactoryTalk View tag and alarm CSV imports before re-import.
Deterministic release-compatibility preflight for OPC UA NodeSet2 XML.
Generate structurally valid test IBANs for 91 countries (MOD-97 and national check digits), validate any IBAN and export lists. Free, no sign-up.
Verify before your agent acts on data it paid for. Signed verdicts, checkable offline, via x402.
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/
Lint a SKILL.md for frontmatter, structure, secrets and size. All 6 tools free.
Disposable email addresses for tests and agents: register, wait for mail, extract codes and links.
Risk-scan a diff, flag AI-generated-code tells, find secrets. 5 of 7 tools need no account.
GodPrompt MCP + Agent Skill for coding agents with TDD, debugging, verification, and task routing.
QA platform for agents: coverage signals, in-repo test plans, verified tests and release governance.
Paid deterministic data-quality and execution-verification tools for AI agents.
Preflight FactoryTalk View import CSV files before import. Detects deterministic schema, row, field, and compatibility issues and returns structured exceptions for review.
Ensemble testing of web pages for accessibility, usability, and standards conformity
Run EPUBCheck for EPUB specification errors and compare two exports.
Validate CSV columns, find duplicates and invalid values, and clean files with explicit rules. Row-level reports, no stored files. Run the fixed free sample without a key. Custom CSV: EUR 9 for 100 operations, valid 90 days, no subscription. Setup: https://import-check-production.up.railway.app/docs/
