"Tools or methods for generating graphs from structured data" matching MCP connectors:

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

Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.

Your DRF API as MCP tools — 1,800 endpoints become 16 dispatchers, permissioned by Django.

Apideck Unified API MCP — 330 tools across 200+ SaaS connectors (accounting, CRM, HRIS, ATS).

A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.

Deploy production REST APIs from JSON schemas in seconds. Manage projects, schemas, and deployments.

Discover, pay for, execute, and publish APIs through Apiosk.

Anonymous webhook capture, inspection, waiting, and response configuration for AI agents.

Create hosted mock REST APIs as tools: seed fake data, import specs, query, write, snapshot. Free.

Instant no-signup webhook & HTTP-request inspector for testing webhooks and agent tool-callbacks.

Verify x402 endpoints before payment or publish service profiles for agent discovery.

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

Keyless webhook endpoints: capture, wait, replay, forward, and generate types from real traffic.

Debug webhooks from your AI agent: inspect and replay captured webhooks on localhost.

API governance for AI agents. Detects breaking changes, scores blast radius, blocks unsafe calls.

Unified gateway exposing 150+ tools across all NexGenData MCP servers via one endpoint.

DummyJSON mock REST: products, users, posts, recipes, todos. Keyless test data.

End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.

The official MCP Server for the Mux API

An MCP server that provides tools to validate an email address using Dilli Email Validation API.