# Developer & cloud explorers

> A network of 10 focused, deterministic tools. Every tool has a human page, a JSON API, an OpenAPI description and an MCP tool that all return the same result (inputs, result, units, assumptions, sources, timestamps).

## Machine interfaces
- Tool catalog (JSON): https://devcloud.usefulweb.site/api/v1/tools
- OpenAPI (all tools): https://devcloud.usefulweb.site/openapi.json
- MCP server (all tools + workflows): https://devcloud.usefulweb.site/mcp
- Pick a tool for a natural-language request: POST https://devcloud.usefulweb.site/api/v1/tools/prompt-to-tool-router/calculate {"request": "..."}

## Tools
- [API Explorer of Explorers](https://apiexplorerofexplorers.usefulweb.site/): Search 2,500+ public APIs or summarise any OpenAPI spec: servers, auth, endpoints, changes. API: POST https://devcloud.usefulweb.site/api/v1/tools/api-explorer-of-explorers/calculate
- [CI/CD Failure Explorer](https://cicdfailureexplorer.usefulweb.site/): Paste CI logs from several runs: root cause per run, grouped signatures, top causes and fixes. API: POST https://devcloud.usefulweb.site/api/v1/tools/cicd-failure-explorer/calculate
- [Cron Job Explorer](https://cronjobexplorer.usefulweb.site/): Paste a crontab or CronJob YAML: plain-English schedules, DST-exact next runs, herds and overlaps. API: POST https://devcloud.usefulweb.site/api/v1/tools/cron-job-explorer/calculate
- [Data Lineage Explorer](https://datalineageexplorer.usefulweb.site/): Paste SQL or dbt models: table lineage graph, column lineage and upstream/downstream of any field. API: POST https://devcloud.usefulweb.site/api/v1/tools/data-lineage-explorer/calculate
- [Distributed Trace Explorer](https://distributedtraceexplorer.usefulweb.site/): Paste an OTLP, Jaeger or Zipkin trace: span tree, critical path, self-time, N+1 calls and errors. API: POST https://devcloud.usefulweb.site/api/v1/tools/distributed-trace-explorer/calculate
- [Kubernetes Event Explorer](https://kuberneteseventexplorer.usefulweb.site/): Paste kubectl events and get a timeline, reason taxonomy and likely root causes per workload. API: POST https://devcloud.usefulweb.site/api/v1/tools/kubernetes-event-explorer/calculate
- [OpenAPI Diff Explorer](https://openapidiffexplorer.usefulweb.site/): Compare two versions of an OpenAPI spec and see exactly which changes break clients. API: POST https://devcloud.usefulweb.site/api/v1/tools/openapi-diff-explorer/calculate
- [Query Plan Visualizer](https://queryplanvisualizer.usefulweb.site/): PostgreSQL EXPLAIN (ANALYZE) or MySQL EXPLAIN JSON → plan tree, hot nodes and index suggestions. API: POST https://devcloud.usefulweb.site/api/v1/tools/query-plan-visualizer/calculate
- [Serverless Performance Explorer](https://serverlessperformanceexplorer.usefulweb.site/): Lambda REPORT lines → cold-start rate, p50/p95/p99, memory right-sizing and cost per 1M calls. API: POST https://devcloud.usefulweb.site/api/v1/tools/serverless-performance-explorer/calculate
- [Terraform Plan & Drift Explorer](https://terraformdriftexplorer.usefulweb.site/): Paste terraform show -json: drift, replacement reasons, attribute diffs and risky deletes. API: POST https://devcloud.usefulweb.site/api/v1/tools/terraform-drift-explorer/calculate

## Workflows