Pay-per-call AI skills via the x402 payment protocol. No API keys, no subscriptions — just pay and use.
import { payAndRequest } from "x402-axios";
const response = await payAndRequest(
"https://skillmint.sagasu.art/skills/deep-research-pro",
wallet,
{ method: "POST", data: { topic: "AI Agent market 2026" } }
);
console.log(response.data);
// { research_overview: "...", key_findings: [...], report: "...", sources: [...] }Echo back the input. Used to verify x402 payment flow works end-to-end.
POST /skills/echomessage{
"message": "hello from agent"
}Design high-quality structured prompts through collaborative analysis. Input your task description, get a complete prompt package with framework selection (CRISPE/OpenAI/structured), few-shot examples, usage instructions, and variant suggestions.
POST /skills/prompt-engineertask_description{
"task_description": "I need a prompt that helps customer support agents draft empathetic responses to complaint emails",
"target_model": "Claude",
"complexity": "moderate",
"output_format": "structured email with subject line and body"
}Review React/Next.js code against 58 performance rules from Vercel Engineering. Get prioritized optimization recommendations across waterfalls, bundle size, server/client performance, and more.
POST /skills/react-best-practicescode{
"code": "import { useState, useEffect } from 'react';\n\nexport default function Dashboard() {\n const [data, setData] = useState(null);\n useEffect(() => { fetch('/api/data').then(r => r.json()).then(setData); }, []);\n return <div>{data?.title}</div>;\n}",
"focus": "waterfalls"
}Audit UI code against 100+ Web Interface Guidelines covering accessibility, performance, and UX. Get compliance score and actionable fixes.
POST /skills/web-design-guidelinescode{
"code": "<button onclick='submit()'>Click here</button>\n<div class='modal' style='display:block'>Content</div>",
"focus": "accessibility"
}Review React component architecture for composition patterns. Identify boolean prop proliferation, suggest compound components, and improve API design.
POST /skills/composition-patternscode{
"code": "function Modal({ isOpen, isFullScreen, hasCloseButton, isScrollable, isDarkMode }) {\n return <div className={isDarkMode ? 'dark' : 'light'}>...</div>;\n}",
"context": "Building a reusable component library"
}Review React Native/Expo code against 27+ performance rules. Get optimization recommendations for lists, animations, navigation, and more.
POST /skills/react-native-reviewcode{
"code": "import { FlatList, TouchableOpacity, Image } from 'react-native';\n\nexport default function Feed({ items }) {\n return <FlatList data={items} renderItem={({ item }) => (\n <TouchableOpacity onPress={() => navigate(item.id)}>\n <Image source={{ uri: item.image }} style={{ width: 100, height: 100 }} />\n </TouchableOpacity>\n )} />;\n}",
"focus": "list-performance"
}Generate complete MCP (Model Context Protocol) server code. Describe the API or data source, get a production-ready MCP server with tools, schemas, and setup instructions.
POST /skills/mcp-builderdescription{
"description": "Build an MCP server that integrates with the GitHub API to manage issues and pull requests",
"api_type": "REST API",
"language": "typescript"
}Design and create AI agent skills with evaluation frameworks. Describe the capability, get a complete skill definition with test cases and optimization suggestions.
POST /skills/skill-creatorcapability{
"capability": "A skill that reviews SQL queries for performance issues and suggests optimizations",
"target_agent": "Claude Code",
"use_case": "Database performance optimization during code review"
}Get implementation guidance for Claude API integration. Describe your use case, get complete code with model selection, tool use, streaming, and cost estimates.
POST /skills/claude-api-guideuse_case{
"use_case": "Build a customer support chatbot that can look up order status and process refunds",
"language": "typescript",
"features": [
"tool-use",
"streaming"
]
}Generate Playwright test suites for web applications. Describe your app and get complete test code with setup instructions.
POST /skills/webapp-testingapp_description{
"app_description": "E-commerce checkout flow with cart, shipping address, payment, and order confirmation",
"url": "http://localhost:3000",
"test_focus": "e2e"
}Create sophisticated self-contained HTML artifacts with React 18, TypeScript, Tailwind, and shadcn/ui. 40+ pre-installed components.
POST /skills/web-artifacts-builderdescription{
"description": "An interactive kanban board with drag-and-drop, dark theme, and local storage persistence",
"components": [
"Card",
"Button",
"Dialog",
"Badge"
],
"interactive": true
}Get step-by-step deployment guidance for Vercel. Auto-detects 40+ frameworks with configuration, environment variables, and troubleshooting.
POST /skills/deploy-to-vercelproject_description{
"project_description": "Next.js 14 app with Prisma database, authentication, and S3 file uploads",
"framework": "nextjs",
"features": [
"database",
"auth",
"file-storage"
]
}Review Remotion video code against 41 best practice rules. Get feedback on animations, timing, compositions, media handling, and effects.
POST /skills/remotion-reviewcode{
"code": "import { useCurrentFrame, interpolate } from 'remotion';\n\nexport const MyVideo = () => {\n const frame = useCurrentFrame();\n const opacity = interpolate(frame, [0, 30], [0, 1]);\n return <div style={{ opacity }}>Hello</div>;\n}",
"focus": "animations"
}Generate distinctive, production-grade frontend interfaces with high design quality. Submit requirements, get creative, polished code that avoids generic AI aesthetics.
POST /skills/frontend-designrequirements{
"requirements": "A landing page for an AI startup with dark theme and animated hero section",
"framework": "react",
"style": "brutalist minimalism",
"purpose": "SaaS product launch"
}Generate p5.js generative art with seeded randomness. Describe a theme or concept, get a complete self-contained HTML file with interactive controls.
POST /skills/algorithmic-arttheme{
"theme": "Neural networks as organic growth patterns",
"style": "dark background with bioluminescent nodes",
"complexity": "complex",
"colors": [
"#00ff88",
"#0066ff",
"#ff0066"
]
}Create original visual design philosophies and art direction. Input a concept, get a complete aesthetic manifesto with visual specifications.
POST /skills/canvas-designconcept{
"concept": "A coffee brand that merges Japanese minimalism with industrial brutalism",
"medium": "identity",
"mood": "serene yet raw"
}Generate complete design themes with colors, fonts, and spacing. Choose from 10 presets or describe a custom theme for slides, docs, or web.
POST /skills/theme-factorydescription{
"description": "A premium fintech theme with dark mode, gold accents, and modern typography",
"target": "web",
"preset": ""
}Review content against brand guidelines for visual identity compliance. Check colors, fonts, tone, and visual consistency.
POST /skills/brand-guidelinescontent{
"content": "<h1 style='font-family: Arial; color: #333'>Welcome to Acme</h1>",
"brand_name": "Acme Corp",
"guidelines": "Primary color: #0066FF, Font: Poppins, Tone: professional and warm"
}Generate Python code for creating animated GIFs optimized for Slack. 8 animation types: shake, pulse, bounce, rotate, fade, slide, zoom, particles.
POST /skills/slack-gif-creatordescription{
"description": "A bouncing party parrot emoji",
"animation_type": "bounce",
"size": "emoji"
}Extract actionable insights from Reddit discussions: user pain points with verbatim quotes, competitor sentiment, content opportunities, feature requests, and trend signals. Input Reddit threads/comments as text.
POST /skills/reddit-researchercontent{
"content": "Reddit thread content with posts and comments...",
"subreddits": [
"r/SaaS",
"r/startups"
],
"product_name": "SkillMint",
"research_focus": "all"
}Generate comprehensive, verified research reports with multi-source cross-referencing. Input a research topic, get a structured report with verified data, insights, and actionable recommendations.
POST /skills/deep-research-protopic{
"topic": "AI agents market landscape in 2025",
"purpose": "investment decision",
"depth": "expert",
"focus": "enterprise adoption and key players",
"time_range": "2024-2025"
}McKinsey-style competitive intelligence analysis. Input your product and competitors, get a comprehensive report with feature comparison, SWOT, pricing analysis, and actionable positioning strategies.
POST /skills/competitor-analyzerproduct, competitors{
"product": "SkillMint — API marketplace for AI skills",
"competitors": [
"RapidAPI",
"OpenRouter",
"Replicate"
],
"industry": "Developer Tools / API Marketplace",
"focus": "all"
}Rigorous prediction analysis using first-principles reasoning. Input any prediction question, get a structured report with fact anchors, causal chains, scenario analysis (with probabilities), falsifiable checkpoints, and decision recommendations.
POST /skills/first-principles-predictorquestion{
"question": "Will electric vehicles reach 50% of new car sales in the US by 2030?",
"context": "Current EV market share is around 9% in the US as of 2024",
"timeframe": "by 2030"
}Predict next viral topics by analyzing 72-hour weak signals. Input a content domain, get 3 predicted viral topics with emotional hook analysis, high-click titles, differentiation angles, and a time-based 72-hour action checklist.
POST /skills/viral-predictordomain{
"domain": "AI productivity tools",
"platforms": [
"youtube",
"reddit"
],
"content_type": "video",
"language": "en"
}Convert Chinese UI descriptions into idiomatic English UX copy following Apple HIG and Google Material Design guidelines. Input a Chinese scenario + component type, get 3 style variants (Apple, Google, Conversational) with best-fit recommendation.
POST /skills/ui-copy-writerdescription, component{
"description": "删除条目确认",
"component": "dialog",
"product_context": "project management app",
"tone": "casual"
}Nature/Science-level dual-core academic review system. Submit paper text and target journal, get a comprehensive review with logic stress test, section-by-section polish with before/after comparison, and submission materials.
POST /skills/academic-reviewercontent{
"content": "Abstract: We present a novel approach to...\n\nIntroduction: Recent advances in...",
"target_journal": "Nature Communications",
"language_pair": "Chinese-English",
"review_mode": "full"
}Remove AI-generated text patterns and make content sound naturally human-written. Based on Wikipedia's AI writing characteristics guide. Detects and fixes 24+ AI patterns across content, language, and style dimensions with quality scoring.
POST /skills/deai-humanizertext{
"text": "AI-generated text to humanize",
"tone": "casual"
}Transform AI-assisted academic writing into authentic scholarly prose. Applies 10+ rewriting strategies: adding stance actions, varying sentence structure, replacing concept chains with evidence chains, and injecting critical self-reflection. Includes 10-point quality checklist.
POST /skills/academic-deaitext{
"text": "Academic text to transform",
"discipline": "sociology",
"style": "social_science"
}Transform interview transcripts and research materials into professional long-form business features. Outputs article (2200-3500 words), 9 headline options, abstract, condensed version, and fact verification notes. Follows Caixin/Renwu/GQ editorial standards.
POST /skills/interview-feature-writermaterials{
"materials": "Interview transcript or research materials",
"story_type": "business_interview"
}Transform condescending, preachy content into empathetic, equal-level expression. Supports both rewriting existing text and composing new content. Uses first-person retrospective, question-led openings, and affirm-first-then-pivot strategies.
POST /skills/tone-rewritertext{
"text": "You should really learn to save money early. Young people these days just don't understand the value of financial discipline.",
"mode": "rewrite"
}Four-dimensional article quality audit: logic rigor, readability, AI pattern detection, and factual risk. Returns quantified scores (0-100%) per dimension, detailed issue reports with original text references, and actionable revision suggestions.
POST /skills/article-quality-checkerarticle{
"article": "Your article text here...",
"article_type": "opinion",
"target_reader": "general",
"platform": "blog"
}Collaborative document creation through context gathering, refinement, and reader testing. Submit topic and requirements, get a polished document.
POST /skills/doc-coauthoringtopic{
"topic": "Q3 2025 product strategy for AI-powered developer tools",
"document_type": "strategy document",
"audience": "executive leadership team",
"existing_content": "We are pivoting from enterprise to developer-first..."
}Generate professional internal communications: status reports, 3P updates (Progress/Plans/Problems), newsletters, FAQs, and incident reports.
POST /skills/internal-commscontent{
"content": "We shipped the new auth system, planning to migrate legacy users next sprint, blocked on SSO provider integration",
"format": "3p-update",
"audience": "engineering leadership"
}Analyze a URL or text content for keyword optimization. Returns primary/secondary keywords, density, conflicts, and actionable suggestions. Based on one-page-one-keyword methodology.
POST /skills/seo-analyzer{
"content": "Your article text here",
"target_keyword": "main keyword"
}Rewrite AI-generated text to remove AI tells and sound naturally human. Supports minimal, professional, and casual styles. Preserves meaning and facts.
POST /skills/content-deaiertext{
"text": "AI-generated text to humanize",
"style": "minimal"
}Analyze Google Search Console data to find quick wins, CTR optimization opportunities, keyword clusters, and prioritized recommendations. Pass your GSC query/page performance data as JSON.
POST /skills/seo-performance-insightdata{
"data": [
{
"query": "typescript tutorial",
"clicks": 150,
"impressions": 5000,
"position": 4.2,
"ctr": 0.03
},
{
"query": "learn typescript",
"clicks": 80,
"impressions": 3200,
"position": 7.8,
"ctr": 0.025
}
],
"site_url": "https://example.com",
"period": "last 28 days"
}Compare two periods of SEO metrics to detect ranking drops, traffic anomalies, CTR shifts, emerging/disappearing queries, and generate prioritized action items. Pass current and previous period data as JSON arrays.
POST /skills/seo-anomaly-detectorcurrent, previous{
"current": [
{
"query": "typescript tutorial",
"clicks": 120,
"impressions": 4800,
"position": 6.1,
"ctr": 0.025
}
],
"previous": [
{
"query": "typescript tutorial",
"clicks": 150,
"impressions": 5000,
"position": 4.2,
"ctr": 0.03
}
],
"current_period": "Mar 1-7, 2026",
"previous_period": "Feb 22-28, 2026"
}Cross-analyze data from GSC, GA4, and Bing Webmaster to find rank-engagement gaps, hidden gems, content cannibalization, intent mismatches, and cross-platform opportunities. Pass data from at least 2 sources.
POST /skills/seo-cross-analyzer{
"gsc": [
{
"query": "typescript guide",
"page": "/blog/ts-guide",
"clicks": 200,
"impressions": 8000,
"position": 3.5,
"ctr": 0.025
}
],
"ga4": [
{
"page": "/blog/ts-guide",
"pageviews": 350,
"bounce_rate": 0.72,
"avg_session_duration": 45
}
],
"bing": [
{
"query": "typescript guide",
"page": "/blog/ts-guide",
"clicks": 15,
"impressions": 400,
"position": 12
}
]
}Generate a professional SEO performance report from raw metrics. Includes executive summary, key metrics with period-over-period comparison, wins, issues, competitive insights, and prioritized recommendations. Suitable for stakeholder presentations.
POST /skills/seo-report-generatorcurrent{
"current": [
{
"query": "typescript tutorial",
"clicks": 150,
"impressions": 5000,
"position": 4.2,
"ctr": 0.03
}
],
"previous": [
{
"query": "typescript tutorial",
"clicks": 120,
"impressions": 4500,
"position": 5.1,
"ctr": 0.027
}
],
"site_url": "https://example.com",
"period": "March 2026",
"report_type": "monthly"
}Generate SEO articles following Google's E-E-A-T framework. Analyzes competitor articles, builds keyword strategy matrix, and produces publication-ready HTML articles with quality audit scores. Each article includes Experience, Expertise, Authority, and Trust signals.
POST /skills/seo-eeat-writerproduct_info, competitor_articles{
"product_info": "SkillMint — a pay-per-call AI skill marketplace using x402 protocol",
"competitor_articles": [
"Competitor article text here..."
],
"target_keywords": [
"AI API marketplace",
"pay per call API"
],
"article_count": 3
}Transform Chinese articles (WeChat, blog, tutorial) into SEO-optimized English Medium content. Not just translation — complete content reshaping with Western audience adaptation, story-driven narrative, and Medium-specific formatting.
POST /skills/medium-seo-converterchinese_article{
"chinese_article": "你的中文文章内容...",
"target_keywords": [
"AI productivity",
"developer tools"
],
"tone": "storytelling"
}Analyze 5-15 articles from the same author/brand to extract their 'Content DNA' — recurring themes, voice patterns, structural habits, persuasion methods, and anti-patterns. Outputs a replication guide for maintaining consistent brand voice.
POST /skills/content-dna-extractorarticles{
"articles": [
"Article 1 full text...",
"Article 2 full text..."
],
"author_name": "John Doe",
"context": "Tech blog targeting developers"
}Transform raw notes or requirements into structured documents following Document-Driven Development methodology. Supports intent.md, spec.md, and plan.md formats.
POST /skills/doc-structurerraw_input, doc_type{
"raw_input": "I want to build a CLI tool for managing dotfiles",
"doc_type": "intent"
}Generate bank-grade corporate due diligence reports. Input a company name, get a comprehensive credit risk assessment covering equity structure, judicial risks, IP analysis, and credit recommendations.
POST /skills/bank-due-diligencecompany_name{
"company_name": "Acme Technology Co., Ltd.",
"industry": "Software & IT Services",
"credit_type": "working capital loan",
"additional_info": "Applying for a $2M credit line, established 2015"
}Draft patent specification sections including background technology and technical solutions. Input your technical innovation description, get structured patent-ready content with prior art analysis, technical solution documentation, and key innovation highlights.
POST /skills/patent-writertechnical_description{
"technical_description": "A distributed caching system that uses consistent hashing with virtual nodes to achieve automatic load balancing. When a node fails, its virtual nodes are redistributed across remaining nodes using a priority queue based on current load metrics.",
"patent_type": "invention",
"field": "Distributed computing / Cache systems",
"problem_solved": "Existing distributed caches suffer from uneven load distribution during node failures, causing cascading failures"
}Design academic survey questionnaires using 6D Matrix methodology. Input research topic and parameters, get a complete questionnaire with coding manual, dimension mapping, implementation guide, and quality assessment. Supports Quick/Standard/Pro modes.
POST /skills/survey-designerresearch_topic{
"research_topic": "Remote work impact on employee productivity and well-being",
"target_population": "Full-time employees aged 25-55 who transitioned to remote work",
"core_variables": [
"productivity",
"work-life balance",
"job satisfaction",
"communication effectiveness"
],
"purpose": "academic",
"mode": "standard"
}Transform product ideas into professional Product Requirement Documents. Input your product concept, get a structured PRD with personas, user stories, prioritized feature requirements (P0/P1/P2), success metrics, and risk analysis.
POST /skills/prd-generatorproduct_idea{
"product_idea": "A mobile app that helps freelancers track time, generate invoices, and manage client relationships in one place",
"product_type": "SaaS mobile app",
"target_market": "Freelancers and independent contractors",
"constraints": "Must integrate with Stripe for payments, MVP in 3 months",
"timeline": "Q2 2026 launch"
}Generate code for creating Word documents with docx-js. Describe your document needs, get complete code with formatting, tables, and styles.
POST /skills/docx-generatordescription{
"description": "A professional invoice template with company logo, itemized table, and payment terms",
"content": "Acme Corp, Invoice #001, Items: Widget x10 @$5",
"template": "business"
}Get code for any PDF operation: extraction, merging, splitting, watermarks, forms, encryption, OCR. Describe what you need.
POST /skills/pdf-operationsoperation{
"operation": "Merge multiple PDFs and add page numbers as watermark",
"details": "3 input files, A4 format, page numbers in footer"
}Generate code for creating PowerPoint presentations with PptxGenJS. Get bold, visual slides with varied layouts and design choices.
POST /skills/pptx-generatortopic{
"topic": "Q4 2025 Product Roadmap",
"slides": 10,
"style": "modern dark",
"content": "3 key initiatives: AI search, mobile app, API v2"
}Generate code for spreadsheet operations: financial models, data analysis, formulas, charts. Professional color-coding and formula verification.
POST /skills/xlsx-operationsdescription{
"description": "Create a financial model with revenue projections, expense breakdown, and cash flow analysis",
"data": "Revenue: $1M Q1, $1.2M Q2, $1.5M Q3",
"operation": "create"
}