20 MCP Builder alternatives
MCP Builder: Anthropic's guide for building high-quality MCP servers end to end — research, tool design, implementation in TypeScript or Python, testing, and a 10-question evaluation suite. 20 agent skills do similar work, most sharing MCP, Evaluation and Python, ranked by how much they have in common with MCP Builder.
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by Agnost AI
Walks a coding agent through wiring Agnost AI conversation analytics into a Python or TypeScript app — inspecting existing OpenTelemetry first and only adding an SDK when the traces are not usable.
Also: Evaluation, MCP, Python, TypeScript
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by SerpApi
A protocol for measuring whether agents can discover and use your tool without being told about it — WITH/WITHOUT trials, binary scoring, and lift as the only metric. The subject under test is your docs, not the model.
Also: Evaluation, MCP
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by NVIDIA
Diagnoses wrong gradients in differentiable NVIDIA Warp programs by measuring first — comparing autodiff against finite differences on a shrunk reproduction before proposing any fix.
Also: Evaluation, Python
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by NVIDIA
NVIDIA's official skill for building synthetic datasets with NeMo Data Designer — describe the data you want and the agent writes a declarative generation pipeline, column by column.
Also: Evaluation, Python
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by OpenAI
OpenAI's skill for language- and framework-specific secure coding: detect the stack, load the matching reference guidance, then write secure-by-default code, flag critical issues passively, or produce a prioritised vulnerability report with fixes.
Also: Python, TypeScript
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by Amazon Web Services
Official AWS skill for authoring, deploying and debugging CDK stacks — construct patterns, bootstrap, drift, resource import and the CloudFormation errors that trap people.
Also: Python, TypeScript
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by Firecrawl
Integrate Firecrawl's /scrape endpoint into product code — turn a known URL into markdown, HTML, links, metadata or screenshots, with sensible defaults baked in.
Also: API Integration
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by Tencent
Tencent's skill-evolution harness: it rewrites a whole skill folder — SKILL.md, scripts and references together — and lands every decision as a real Git issue, PR and wiki entry you can review.
Also: Evaluation
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by AMD
AMD's official skill for benchmarking vLLM/SGLang inference and driving GPU kernel optimization with Magpie and TraceLens trace analysis.
Also: Evaluation
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by Addy Osmani
Sends every non-trivial decision to a fresh-context adversarial reviewer before it stands — for production, security-sensitive or irreversible work.
Also: Evaluation
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by Anthropic
Create, edit, and optimize Agent Skills — scaffold new skills, refine existing ones, run evals, and tune descriptions for reliable triggering.
Also: Evaluation
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by Anthropic
Anthropic's official skill that appends 2-3 targeted follow-up questions to a substantive answer, prompting the reader to check facts, probe assumptions and spot missing context.
Also: Evaluation
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by OpenAI
OpenAI's skill for driving Linear through its MCP server: a read-first workflow for issue triage, sprint planning, documentation audits and workload balancing, with the MCP setup and OAuth steps written out.
Also: MCP
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by Google Labs (Stitch)
Google's official Stitch build skill for shadcn/ui — component discovery, installation, customisation and the conventions that keep a generated UI idiomatic.
Also: MCP
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by Google Labs (Stitch)
Google's official Stitch skill for autonomous multi-page site building — a baton file carries the next task from one agent iteration to the next.
Also: MCP
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by Google Labs (Stitch)
Google's official Stitch skill that reverses the usual direction — turns an existing React, Vue, Angular or Vite front end back into an editable Stitch design.
Also: MCP
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by Microsoft
Microsoft's official plugin that generates codeful MCP tools — a self-contained JS runtime plus JSON Schema metadata — and single-file HTML widgets to visualise their results.
Also: MCP
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by Cloudflare
Audits Core Web Vitals through the Chrome DevTools MCP server — LCP, INP, CLS plus FCP, TBT and Speed Index — and traces each one back to the render-blocking resource or layout shift causing it.
Also: MCP
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by Apollo GraphQL
Sets up Apollo MCP Server so an AI agent can call a GraphQL API as MCP tools — defining tools from named operations, or exposing introspect/search/validate/execute for open-ended schemas.
Also: MCP
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by Google Labs (Stitch)
Google's official Stitch skill for generating and editing UI screens from text or images — with a mandatory prompt-enhancement pipeline before every call.
Also: MCP
