Development Guide
Features
Discover the capabilities and features of Nevermined Payment Libraries.
The Nevermined Payment Libraries provide a comprehensive set of tools for monetizing AI agents and enabling seamless payment flows between humans and AI agents, as well as between AI agents themselves within multi-agent systems.
Core Capabilities
For AI Builders
AI Agent Registration
AI Agent Registration
Register your AI agents with metadata, API endpoints, and access control policies. Define which endpoints require payment and which are open.
Flexible Payment Plans
Flexible Payment Plans
Create various types of payment plans: - Credits-Based Plans: Pay per
request or API call - Time-Based Plans: Subscription access for specific
durations - Trial Plans: Free limited access for new users - Dynamic
Plans: Flexible usage limits so each request can have its own cost
Access Control
Access Control
Automatically validate requests and control access to your AI services based
on payment status and remaining credits.
Requests Observability
Requests Observability
Tracks the usage and cost of your agent’s underlying services, including underlying LLM requests or other API calls, requests and credits consumed.
Revenue Management
Revenue Management
Track usage, manage subscriptions, and receive instant payments in both cryptocurrency and fiat currencies.
For Subscribers (Humans or AI Agents)
Easy Purchasing
Easy Purchasing
Purchase payment plans using: - Cryptocurrency (any ERC-20 token) - Fiat payments (via Stripe integration) - Trial plans for testing services.
Seamless Access
Seamless Access
Get access tokens and query AI agents directly through secure API calls with
automatic credit deduction.
Usage Tracking
Usage Tracking
Monitor your credit balance, usage history, and plan expiration dates in
real-time.
Agent Discovery
Agent Discovery
Browse and discover AI agents and services available in the Nevermined ecosystem.
Integration Patterns
Agent-to-Agent Commerce
Enables autonomous AI systems to:- Monetize your Google A2A or MCP agents
- Purchase services from other AI agents
- Create complex multi-agent workflows
- Build AI ecosystems with automatic settlement
- Develop agent marketplaces and orchestration platforms
Human-to-Agent Interactions
Perfect for building:- AI assistants that require payment for premium features
- AI marketplaces where users browse and purchase access to AI services
- SaaS applications with AI-powered features
- Developer tools that monetize AI API access
- Consumer applications with premium AI features
Payment Models
Usage-Based Pricing
Charge based on actual usage - perfect for API calls, processing requests,
or computational resources.
Subscription Model
Time-based access for unlimited usage within specific periods - ideal for
continuous services.
Freemium with Trials
Offer free trials to attract users, then convert to paid plans for continued
access.
Tiered Pricing
Create multiple plans with different credit amounts, durations, or feature
sets.
Multi-Currency Support
- Cryptocurrency: Accept payments in any ERC-20 token (USDC, USDT, etc.) or native tokens
- Fiat Currency: Integrate with Stripe for traditional credit card payments
Developer-Friendly Features
1
Simple Integration
Get started with just a few lines of code in Python or TypeScript
2
Comprehensive SDKs
Full-featured libraries with type safety and extensive documentation
3
Flexible Deployment
Works with direct integration or proxy-based setups
4
Production Ready
Built-in security, error handling, and scalability features
Use Cases
The Payment Libraries are perfect for:- AI Service Providers: Monetize LLM access, computer vision APIs, or specialized AI models
- Developer Tools: Add payment layers to AI development platforms and APIs
- Enterprise Solutions: Create internal AI marketplaces and usage tracking systems
- Research Platforms: Enable paid access to AI research tools and datasets
- Multi-Agent Systems: Build autonomous agent economies with automatic settlements