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This is an info Alert.
x402 Logo
  • Product
    • Core Products
      • Smart Proxy
        Financial guardrails for autonomous agents
      • Paywall Service
        Turn your agents into revenue streams
      • Observability
        Complete visibility into agent operations
      • Monetize MCP Server
        Monetize any MCP server in 2 minutes
    • Monetize Your Workflows
      • n8n
        Monetize n8n workflows
      • Activepieces
        Monetize Activepieces flows
      • Zapier
        Monetize Zapier Zaps
      • All Platforms
        View all supported platforms
  • Resources
    • xpay Ecosystem
      • xpay✦ Tools
        1,000+ pay-per-use tools for your AI agents
      • Agent Kit SDKs
        Core SDK packages for AI agents
      • GitHub
        Open source repositories
      • Documentation
        Complete xpay documentation
    • Agent Building
      • Agent Frameworks
        AI frameworks for building multi-agent systems
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        AI frameworks with x402 payment integration
      • Networks
        Blockchain networks supporting x402
    • Company
      • About xpay✦
        Our mission, products, and protocols
      • Blog
        Latest insights and updates
      • Support
        Get help with your integration
  • Pricing
  • Blog
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Get Started
This is an info Alert.
x402 Logo
  • Product
    • Core Products
      • Smart Proxy
        Financial guardrails for autonomous agents
      • Paywall Service
        Turn your agents into revenue streams
      • Observability
        Complete visibility into agent operations
      • Monetize MCP Server
        Monetize any MCP server in 2 minutes
    • Monetize Your Workflows
      • n8n
        Monetize n8n workflows
      • Activepieces
        Monetize Activepieces flows
      • Zapier
        Monetize Zapier Zaps
      • All Platforms
        View all supported platforms
  • Resources
    • xpay Ecosystem
      • xpay✦ Tools
        1,000+ pay-per-use tools for your AI agents
      • Agent Kit SDKs
        Core SDK packages for AI agents
      • GitHub
        Open source repositories
      • Documentation
        Complete xpay documentation
    • Agent Building
      • Agent Frameworks
        AI frameworks for building multi-agent systems
      • x402 Integration
        AI frameworks with x402 payment integration
      • Networks
        Blockchain networks supporting x402
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      • About xpay✦
        Our mission, products, and protocols
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        Latest insights and updates
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  7. Alpha History

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Alpha History

alphahistory.com

Education
🇺🇸 US
English
Traffic: Top 500K
Alpha History is a free online textbook and resource for history students, providing content and activities for 11 popular history subjects.
Access status
Blocks 10 AI bots

Blocked: amazonbot, applebot-extended, bytespider, ccbot, claudebot, gptbot, chatgpt-user, anthropic-ai, perplexitybot, cohere-ai. xpay can unlock licensed access.

License via xpay

Pricing on request
This includes:

Licensed AI agent access

MCP server + REST API

Pay per query, no subscription

Single account, instant integration

Compliant licensing & receipts

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x402 Logo

We're building essential tools that sit between AI agents and autonomous payments, ensuring agents never overspend while enabling instant API monetization.

or ask your AI app
Company
About xpayGitHubDiscordllms.txt
Developers
DocumentationAPI ReferenceSDKs & LibrariesQuickstart GuideOpenAPI Spec
Stay Updated
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Social
  • Agentic Economy
    • Timeline
    • Protocols
  • x402 Facilitators
    • Overview
    • xpay
    • CDP Facilitator
    • Corbits
    • Mogami
    • thirdweb
    • PayAI
    • Meridian
    • x402.org
  • x402 APIs & Services
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    • Firecrawl
    • Neynar
    • Pinata
    • Hyperbolic
    • Zyte API
    • Gloria AI
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  • Agent Frameworks
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    • LangChain
    • AutoGPT
    • Claude MCP
    • CrewAI
    • Autogen
    • OpenAI Assistants
  • x402 SDKs & Libraries
    • Overview
    • @coinbase/x402
    • x402-python
    • x402-rs
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    • php-x402
  • x402 Networks
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    • Base
    • Polygon
    • Ethereum
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    • Optimism
    • BNB Chain
  • x402 Use Cases
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    • API Monetization
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  • x402 Companies
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    • Coinbase
    • Circle
    • Anthropic
    • OpenAI
© 2025 Agentically Inc. All rights reserved.
Privacy PolicyTerms of ServiceAcceptable Use Policy
x402 Logo

We're building essential tools that sit between AI agents and autonomous payments, ensuring agents never overspend while enabling instant API monetization.

or ask your AI app
Company
About xpayGitHubDiscordllms.txt
Developers
DocumentationAPI ReferenceSDKs & LibrariesQuickstart GuideOpenAPI Spec
Stay Updated
Subscribe to receive the latest xpay updates and agent payment control guides.
Social
  • Agentic Economy
    • Timeline
    • Protocols
  • x402 Facilitators
    • Overview
    • xpay
    • CDP Facilitator
    • Corbits
    • Mogami
    • thirdweb
    • PayAI
    • Meridian
    • x402.org
  • x402 APIs & Services
    • Overview
    • Firecrawl
    • Neynar
    • Pinata
    • Hyperbolic
    • Zyte API
    • Gloria AI
    • Bonsai
  • Agent Frameworks
    • Overview
    • LangChain
    • AutoGPT
    • Claude MCP
    • CrewAI
    • Autogen
    • OpenAI Assistants
  • x402 SDKs & Libraries
    • Overview
    • @coinbase/x402
    • x402-python
    • x402-rs
    • go-x402
    • mogami-x402
    • php-x402
  • x402 Networks
    • Overview
    • Base
    • Polygon
    • Ethereum
    • Arbitrum
    • Optimism
    • BNB Chain
  • x402 Use Cases
    • Overview
    • API Monetization
    • Agent Spending Controls
    • Content Monetization
    • Data Marketplaces
    • Compute Resources
    • Micropayment Streaming
  • x402 Comparisons
    • Overview
    • x402 vs Stripe
    • x402 vs Lightning
    • x402 vs Web Monetization
    • x402 vs Unlock Protocol
  • x402 Companies
    • Overview
    • Coinbase
    • Circle
    • Anthropic
    • OpenAI
© 2025 Agentically Inc. All rights reserved.
Privacy PolicyTerms of ServiceAcceptable Use Policy