"Mock Service Worker" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
12 free MCP tools for local validation of emails, URLs, IP addresses, IBANs, dates, UUIDs, JSON and other structured inputs. No API key or external verification service required.
13 free MCP tools for generating synthetic test data, mock identities, color palettes, SVG avatars, placeholder text, slugs, hashes and random tokens. Built for AI agents, prototyping and software testing.
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
Verify an artifact an AI agent produced — schema, emptiness, provenance and mandate authority — before you accept the work or pay for it. Ed25519-signed and verifiable without this service; 20 checks a day free, then 0.005 USDC per call over x402.
Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev
Search AgentTwin agent testing guides, Node CLI commands and supported synthetic service contracts.
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools
Verify an agent's output before you pay: JSON Schema + rules, signed receipts. Free during launch.
12 synthetic application exception cases: duplicate reimbursements, claim hold list entries, missing
Five trust services for agents: claim checks, citation audits, extraction, tripwires, work audits.
Deterministic check of logged service hours: bad dates, impossible totals, duplicates. No AI.
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools covering mailboxes, mails, attachments, domains, teams, and mock identities.
- ONESOAuthcom.ones.us
ONES helps users find and manage projects, issues, sprints, comments, test cases and work-hour records in their connected workspace, create and retrieve Wiki knowledge, read supported attachments, and search official ONES documentation through an external search service. Available actions depend on account permissions and enabled capabilities.
## Skill Catalog The library contains 42 public skills organized by Rails development concern. | Category | Examples | |----------|----------| | Planning | `create-prd`, `generate-tasks`, `plan-tickets` | | Testing | `plan-tests`, `write-tests`, `test-service`, `triage-bug` | | Code quality | `code-review`, `respond-to-review`, `security-check`, `refactor-code` | | Architecture and DDD | `define-domain-language`, `review-domain-boundaries`, `model-domain`, `review-architecture` | | Rails imple
AI-native mock API server with MCP. Create REST/SOAP mocks from Claude, Cursor, or Windsurf.
