{
  "updated": "2026-03-09",
  "description": "AI tools that extend agent capabilities. Machine-readable index for AI agents and builders. Each tool can be integrated into agent workflows to expand what an agent can do.",
  "source": "https://www.tutuoai.com/discover",
  "total": 38,
  "tools": [
    {
      "name": "DALL-E 3",
      "category": "image-generation",
      "provider": "OpenAI",
      "description": "Generate high-quality images from text prompts via API.",
      "agent_use_case": "Generate product images, diagrams, and visual assets within agent workflows without leaving the pipeline.",
      "api_url": "https://platform.openai.com/docs/guides/images",
      "docs_url": "https://platform.openai.com/docs/guides/images",
      "free_tier": false,
      "pricing_summary": "No free tier / ~$0.04–$0.08 per image",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Stable Diffusion",
      "category": "image-generation",
      "provider": "Stability AI",
      "description": "Open-source image generation model that can run locally or via API.",
      "agent_use_case": "Generate images locally with no API cost, or use Stability API for cloud-scale generation.",
      "api_url": "https://platform.stability.ai/",
      "docs_url": "https://platform.stability.ai/docs/api-reference",
      "free_tier": true,
      "pricing_summary": "Free (local) / API from $10/mo",
      "openclaw_skill": null,
      "complexity": "30min"
    },
    {
      "name": "Replicate",
      "category": "image-generation",
      "provider": "Replicate",
      "description": "Run open-source AI models including image, video, and audio generation via API.",
      "agent_use_case": "Run Stable Diffusion, SDXL, or any open-source model via simple API calls without GPU management.",
      "api_url": "https://api.replicate.com/v1",
      "docs_url": "https://replicate.com/docs",
      "free_tier": false,
      "pricing_summary": "No free tier / pay-per-second from ~$0.00055/sec",
      "openclaw_skill": null,
      "complexity": "5min",
      "affiliate_url": "https://replicate.com/?ref=tutuoai"
    },
    {
      "name": "Fal.ai",
      "category": "image-generation",
      "provider": "fal.ai",
      "description": "Fast image and video generation API with sub-second latency models.",
      "agent_use_case": "Generate images in real-time within agent pipelines where latency matters — sub-second FLUX and SDXL.",
      "api_url": "https://fal.run/",
      "docs_url": "https://fal.ai/docs",
      "free_tier": false,
      "pricing_summary": "No free tier / from ~$0.003 per image",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "ElevenLabs",
      "category": "speech-synthesis",
      "provider": "ElevenLabs",
      "description": "Realistic text-to-speech synthesis with voice cloning and multiple languages.",
      "agent_use_case": "Convert agent text output to high-quality audio for voice apps, podcasts, and notifications.",
      "api_url": "https://api.elevenlabs.io/v1",
      "docs_url": "https://elevenlabs.io/docs/api-reference/getting-started",
      "free_tier": true,
      "pricing_summary": "Free tier: 10k chars/mo / Paid from $5/mo",
      "openclaw_skill": null,
      "complexity": "5min",
      "affiliate_url": "https://elevenlabs.io/?ref=tutuoai"
    },
    {
      "name": "Whisper",
      "category": "speech-to-text",
      "provider": "OpenAI",
      "description": "State-of-the-art speech recognition model, available locally or via API.",
      "agent_use_case": "Transcribe audio inputs to text, enabling agents to process voice data and meeting recordings.",
      "api_url": "https://platform.openai.com/docs/guides/speech-to-text",
      "docs_url": "https://platform.openai.com/docs/guides/speech-to-text",
      "free_tier": true,
      "pricing_summary": "Free (local) / API $0.006/min",
      "openclaw_skill": "skill-openai-whisper",
      "complexity": "instant"
    },
    {
      "name": "AssemblyAI",
      "category": "speech-to-text",
      "provider": "AssemblyAI",
      "description": "Enterprise speech-to-text API with speaker diarization, sentiment analysis, and chapter detection.",
      "agent_use_case": "Transcribe meeting recordings with speaker labels and auto-generate summaries and action items.",
      "api_url": "https://api.assemblyai.com/",
      "docs_url": "https://www.assemblyai.com/docs",
      "free_tier": true,
      "pricing_summary": "Free tier: $50 credit / Paid from $0.0062/min",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Deepgram",
      "category": "speech-to-text",
      "provider": "Deepgram",
      "description": "Fast, accurate speech-to-text API with real-time streaming and 30+ language support.",
      "agent_use_case": "Stream real-time audio transcription for live agent voice interfaces or call center automation.",
      "api_url": "https://api.deepgram.com/v1",
      "docs_url": "https://developers.deepgram.com/docs",
      "free_tier": true,
      "pricing_summary": "Free tier: $200 credit / Paid from $0.0043/min",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Brave Search API",
      "category": "web-search",
      "provider": "Brave",
      "description": "Independent web search API with no Google dependency and rich structured results.",
      "agent_use_case": "Give agents real-time web access for research, fact-checking, and current events without browser overhead.",
      "api_url": "https://api.search.brave.com/res/v1/web/search",
      "docs_url": "https://api.search.brave.com/app/documentation",
      "free_tier": true,
      "pricing_summary": "Free tier: 2k queries/mo / Paid from $3/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Perplexity API",
      "category": "web-search",
      "provider": "Perplexity AI",
      "description": "LLM-powered web search API that returns cited, synthesized answers rather than raw links.",
      "agent_use_case": "Get research-quality synthesized answers with citations in one API call — ideal for agent knowledge retrieval.",
      "api_url": "https://api.perplexity.ai/",
      "docs_url": "https://docs.perplexity.ai/",
      "free_tier": false,
      "pricing_summary": "No free tier / from $0.2 per 1M tokens",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Serper API",
      "category": "web-search",
      "provider": "Serper",
      "description": "Google Search API proxy with fast structured results for web, news, and images.",
      "agent_use_case": "Get Google search results programmatically for agents that need SEO research or competitor analysis.",
      "api_url": "https://google.serper.dev/search",
      "docs_url": "https://serper.dev/docs",
      "free_tier": true,
      "pricing_summary": "Free tier: 2.5k queries / Paid from $50/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "E2B Code Sandbox",
      "category": "code-execution",
      "provider": "E2B",
      "description": "Secure cloud sandbox for executing code in isolated environments via API.",
      "agent_use_case": "Let agents run arbitrary code safely — data analysis, script execution, testing — without local risk.",
      "api_url": "https://api.e2b.dev/",
      "docs_url": "https://e2b.dev/docs",
      "free_tier": true,
      "pricing_summary": "Free tier: 100 hrs/mo / Paid from $100/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Modal",
      "category": "code-execution",
      "provider": "Modal Labs",
      "description": "Serverless GPU and CPU compute platform for running Python functions at scale.",
      "agent_use_case": "Run compute-heavy agent tasks — model inference, batch processing, GPU jobs — without managing infrastructure.",
      "api_url": "https://modal.com/",
      "docs_url": "https://modal.com/docs",
      "free_tier": true,
      "pricing_summary": "Free tier: $30/mo credit / Paid from $0.000164/sec (CPU)",
      "openclaw_skill": null,
      "complexity": "30min"
    },
    {
      "name": "Playwright",
      "category": "browser-automation",
      "provider": "Microsoft",
      "description": "Browser automation library supporting Chromium, Firefox, and WebKit.",
      "agent_use_case": "Automate web interactions — scraping, form submission, screenshot capture — from within agent pipelines.",
      "api_url": "https://playwright.dev/",
      "docs_url": "https://playwright.dev/docs/api/class-playwright",
      "free_tier": true,
      "pricing_summary": "Free / open-source",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Firecrawl",
      "category": "web-scraping",
      "provider": "Firecrawl",
      "description": "Web scraping and crawling API that converts websites to clean LLM-ready markdown.",
      "agent_use_case": "Extract structured content from any website in one API call, ready to feed into agent context.",
      "api_url": "https://api.firecrawl.dev/v1",
      "docs_url": "https://docs.firecrawl.dev",
      "free_tier": true,
      "pricing_summary": "Free tier: 500 pages/mo / Paid from $16/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Jina AI Reader",
      "category": "web-scraping",
      "provider": "Jina AI",
      "description": "Convert any URL to clean, LLM-friendly markdown with a single GET request to r.jina.ai.",
      "agent_use_case": "Instantly fetch any webpage as clean markdown without an API key — prefix r.jina.ai/ before any URL.",
      "api_url": "https://r.jina.ai/",
      "docs_url": "https://jina.ai/reader/",
      "free_tier": true,
      "pricing_summary": "Free (rate-limited) / API tokens from $0.02 per 1M tokens",
      "openclaw_skill": null,
      "complexity": "instant"
    },
    {
      "name": "Pinecone",
      "category": "vector-db",
      "provider": "Pinecone",
      "description": "Managed vector database for semantic search and long-term agent memory.",
      "agent_use_case": "Store and retrieve agent memories, embeddings, and knowledge base chunks with sub-100ms latency.",
      "api_url": "https://api.pinecone.io/",
      "docs_url": "https://docs.pinecone.io",
      "free_tier": true,
      "pricing_summary": "Free tier: 1 index, 100k vectors / Paid from $70/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Chroma",
      "category": "vector-db",
      "provider": "Chroma",
      "description": "Open-source embedding database that runs locally or in the cloud.",
      "agent_use_case": "Add persistent semantic memory to agents without cloud dependencies — great for local setups.",
      "api_url": "https://cloud.trychroma.com/",
      "docs_url": "https://docs.trychroma.com",
      "free_tier": true,
      "pricing_summary": "Free (local) / Cloud from $0 starter",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Weaviate",
      "category": "vector-db",
      "provider": "Weaviate",
      "description": "Open-source vector database with built-in ML model integrations and hybrid search.",
      "agent_use_case": "Build semantic search and RAG pipelines with hybrid keyword+vector search over structured data.",
      "api_url": "https://weaviate.io/developers/weaviate/api",
      "docs_url": "https://weaviate.io/developers/weaviate",
      "free_tier": true,
      "pricing_summary": "Free (local/sandbox) / Cloud from $25/mo",
      "openclaw_skill": null,
      "complexity": "30min"
    },
    {
      "name": "Qdrant",
      "category": "vector-db",
      "provider": "Qdrant",
      "description": "High-performance vector similarity search engine with filtering and payload storage.",
      "agent_use_case": "Store agent knowledge as dense vectors and retrieve the most relevant chunks with metadata filtering.",
      "api_url": "https://api.qdrant.io/",
      "docs_url": "https://qdrant.tech/documentation/",
      "free_tier": true,
      "pricing_summary": "Free (local) / Cloud from $0 (1GB free) / Paid from $25/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "LanceDB",
      "category": "vector-db",
      "provider": "LanceDB",
      "description": "Embedded, serverless vector database that runs inside your application with no separate server.",
      "agent_use_case": "Embed a vector store directly in the agent process — no Docker, no server — for lightweight local RAG.",
      "api_url": "https://lancedb.github.io/lancedb/",
      "docs_url": "https://lancedb.github.io/lancedb/",
      "free_tier": true,
      "pricing_summary": "Free / open-source / Cloud (LanceDB Cloud) in beta",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Zep",
      "category": "memory",
      "provider": "Zep",
      "description": "Long-term memory service for AI agents with temporal awareness and entity extraction.",
      "agent_use_case": "Give agents persistent, searchable memory across sessions with automatic entity and fact extraction.",
      "api_url": "https://api.getzep.com/",
      "docs_url": "https://docs.getzep.com",
      "free_tier": true,
      "pricing_summary": "Free tier (community) / Cloud from $0 starter",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Mem0",
      "category": "memory",
      "provider": "Mem0",
      "description": "Personalized memory layer for AI agents that learns preferences and facts over time.",
      "agent_use_case": "Give an agent persistent user memory that accumulates across conversations — preferences, facts, history.",
      "api_url": "https://api.mem0.ai/v1",
      "docs_url": "https://docs.mem0.ai/",
      "free_tier": true,
      "pricing_summary": "Free tier: 100 memories / Paid from $10/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Gmail API",
      "category": "email",
      "provider": "Google",
      "description": "Full programmatic access to Gmail — read, compose, send, label, and search emails.",
      "agent_use_case": "Automate email triage, drafting, and sending directly from agent workflows without UI interaction.",
      "api_url": "https://gmail.googleapis.com/",
      "docs_url": "https://developers.google.com/gmail/api",
      "free_tier": true,
      "pricing_summary": "Free with Google Workspace account / OAuth required",
      "openclaw_skill": "skill-gog",
      "complexity": "5min"
    },
    {
      "name": "Resend",
      "category": "email",
      "provider": "Resend",
      "description": "Modern transactional email API built for developers with React email template support.",
      "agent_use_case": "Send transactional or outreach emails from agent workflows with high deliverability and simple API.",
      "api_url": "https://api.resend.com/",
      "docs_url": "https://resend.com/docs",
      "free_tier": true,
      "pricing_summary": "Free tier: 3k emails/mo / Paid from $20/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Google Calendar API",
      "category": "calendar",
      "provider": "Google",
      "description": "Create, read, update, and delete Google Calendar events and attendees programmatically.",
      "agent_use_case": "Let agents schedule meetings, check availability, and manage calendars as part of automated workflows.",
      "api_url": "https://calendar.googleapis.com/",
      "docs_url": "https://developers.google.com/calendar/api",
      "free_tier": true,
      "pricing_summary": "Free with Google account / OAuth required",
      "openclaw_skill": "skill-gog",
      "complexity": "5min"
    },
    {
      "name": "AWS S3",
      "category": "file-storage",
      "provider": "Amazon",
      "description": "Scalable object storage for any file type with SDKs for all major languages.",
      "agent_use_case": "Store and retrieve agent artifacts, generated files, and data outputs with reliable, durable storage.",
      "api_url": "https://s3.amazonaws.com/",
      "docs_url": "https://docs.aws.amazon.com/s3",
      "free_tier": true,
      "pricing_summary": "Free tier: 5GB/12mo / Paid from $0.023/GB",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Stripe API",
      "category": "payments",
      "provider": "Stripe",
      "description": "Complete payment processing — charges, subscriptions, invoices, and payouts.",
      "agent_use_case": "Enable agents to initiate payments, generate invoices, and manage billing programmatically.",
      "api_url": "https://api.stripe.com/v1",
      "docs_url": "https://stripe.com/docs/api",
      "free_tier": false,
      "pricing_summary": "No monthly fee / 2.9% + 30¢ per transaction",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Lemon Squeezy",
      "category": "payments",
      "provider": "Lemon Squeezy",
      "description": "All-in-one payments, subscriptions, and licensing platform for digital products.",
      "agent_use_case": "Enable agents to sell digital products and subscriptions with built-in tax compliance and licensing.",
      "api_url": "https://api.lemonsqueezy.com/v1",
      "docs_url": "https://docs.lemonsqueezy.com/api",
      "free_tier": false,
      "pricing_summary": "No monthly fee / 5% + 50¢ per transaction",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Twilio",
      "category": "messaging",
      "provider": "Twilio",
      "description": "SMS, voice, email, and WhatsApp messaging APIs for programmatic communication.",
      "agent_use_case": "Send SMS alerts, make calls, or trigger notifications from agent workflows when events occur.",
      "api_url": "https://api.twilio.com/",
      "docs_url": "https://www.twilio.com/docs",
      "free_tier": true,
      "pricing_summary": "Free trial credit / SMS from $0.0079/msg",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Notion API",
      "category": "project-management",
      "provider": "Notion",
      "description": "Read and write Notion pages, databases, and blocks programmatically.",
      "agent_use_case": "Use Notion as a persistent knowledge base — agents can read briefs, write reports, and update project status.",
      "api_url": "https://api.notion.com/v1",
      "docs_url": "https://developers.notion.com",
      "free_tier": true,
      "pricing_summary": "Free with Notion account / API free for all plans",
      "openclaw_skill": null,
      "complexity": "5min",
      "affiliate_url": "https://notion.so/?ref=tutuoai"
    },
    {
      "name": "Linear API",
      "category": "project-management",
      "provider": "Linear",
      "description": "Issue tracking and project management API for engineering teams with GraphQL interface.",
      "agent_use_case": "Create, update, and triage engineering issues automatically from agent pipelines and CI workflows.",
      "api_url": "https://api.linear.app/graphql",
      "docs_url": "https://developers.linear.app/docs",
      "free_tier": true,
      "pricing_summary": "Free tier: up to 250 issues / Paid from $8/user/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Airtable API",
      "category": "data-processing",
      "provider": "Airtable",
      "description": "Structured database-spreadsheet hybrid with a REST API for CRUD operations.",
      "agent_use_case": "Store structured agent data, track tasks, and use Airtable as a lightweight operational database.",
      "api_url": "https://api.airtable.com/v0/",
      "docs_url": "https://airtable.com/developers/web/api",
      "free_tier": true,
      "pricing_summary": "Free tier: unlimited bases, 1200 rows/base / Paid from $20/mo",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "GitHub API",
      "category": "developer-tools",
      "provider": "GitHub",
      "description": "Full GitHub platform access — repos, issues, PRs, CI, releases, and code search.",
      "agent_use_case": "Automate code review, issue triage, PR management, and repo operations from agent pipelines.",
      "api_url": "https://api.github.com/",
      "docs_url": "https://docs.github.com/en/rest",
      "free_tier": true,
      "pricing_summary": "Free / 5000 req/hr authenticated",
      "openclaw_skill": "skill-github",
      "complexity": "5min"
    },
    {
      "name": "Slack API",
      "category": "messaging",
      "provider": "Slack",
      "description": "Send messages, create channels, manage users, and react to events in Slack workspaces.",
      "agent_use_case": "Deliver agent outputs, alerts, and reports directly to Slack channels and DMs in real-time.",
      "api_url": "https://slack.com/api/",
      "docs_url": "https://api.slack.com",
      "free_tier": true,
      "pricing_summary": "Free with Slack workspace / Bot token required",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "OpenAI API",
      "category": "llm",
      "provider": "OpenAI",
      "description": "Access GPT-4.1, o-series, and GPT models for text generation, vision, and embeddings.",
      "agent_use_case": "Use GPT as the reasoning backbone for any agent pipeline requiring high-quality language understanding.",
      "api_url": "https://api.openai.com/v1",
      "docs_url": "https://platform.openai.com/docs",
      "free_tier": false,
      "pricing_summary": "No free tier / GPT-4.1 from $2.00 per 1M input tokens",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Anthropic API",
      "category": "llm",
      "provider": "Anthropic",
      "description": "Access Claude models (Sonnet, Haiku, Opus) for reasoning, analysis, and long-context tasks.",
      "agent_use_case": "Use Claude Sonnet as the agent backbone for tasks requiring long-context reasoning and tool use.",
      "api_url": "https://api.anthropic.com/v1",
      "docs_url": "https://docs.anthropic.com",
      "free_tier": false,
      "pricing_summary": "No free tier / Claude Sonnet 4 from $3 per 1M input tokens",
      "openclaw_skill": null,
      "complexity": "5min"
    },
    {
      "name": "Cloudflare R2",
      "category": "file-storage",
      "provider": "Cloudflare",
      "description": "S3-compatible object storage with zero egress fees.",
      "agent_use_case": "Store agent-generated files and serve them globally with no bandwidth costs — ideal for high-traffic outputs.",
      "api_url": "https://developers.cloudflare.com/r2/api/",
      "docs_url": "https://developers.cloudflare.com/r2/",
      "free_tier": true,
      "pricing_summary": "Free tier: 10GB/mo, 1M Class A ops / Paid from $0.015/GB",
      "openclaw_skill": null,
      "complexity": "5min"
    }
  ]
}