Nevermined

What is Nevermined?

Nevermined is an AI-powered payment and billing infrastructure operated by the Swiss company Nevermined AG. Developers can register agents or APIs, design pricing schemes, restrict access to those who have not paid, and track each request, deducting points accordingly and processing settlements.

The platform itself is not a universal AI model, nor does it provide developers with the capability to create agents. It connects agents, consumers, card processing providers, and blockchain settlement components, handling tasks such as authorization, usage tracking, access control, and payment coordination.

Main functions

Agent registration and discovery

• Developers can register AI agents, APIs, datasets, and digital services in the dashboard or SDK, and publish information regarding web pages, MCP, or A2A interfaces.
• Each agent can be associated with one or more payment options; once consumers discover a service, they select a payment option and then obtain access credentials.
• The A2A integration allows payment extensions to be specified within the Agent Card, while the MCP integration enables fixed or dynamic point consumption to be set separately for tools and resources.
• Registration is merely a payment and discovery mechanism; it does not verify the facts, quality, or legitimacy of the outputs provided by the agents. The service provider remains responsible for the product.

Flexible pricing and point-based accounting

• The Credits Plan allows consumers to pre-purchase a fixed amount of credits, which are deducted each time a service is used; the Time Plan, on the other hand, grants access for periods such as one day or one month.
• Developers can calculate points dynamically based on requests, inputs, outputs, result size, model costs, or task outcomes, or they can set tiered rules.
• The platform is responsible for tracking usage, verifying balances, and exchanging points, which helps to link actual calls with revenue, costs, and gross profit.
• What consumers purchase are the specific solutions offered by developers, and their price is separate from the subscription fees and transaction fees that Nevermined charges to the merchants on its platform.

x402 Payment Protection

• The x402 middleware returns a payment request when there is no valid payment credential for the request; once the credential is obtained, it verifies the permissions, executes the service, and settles the points.
• TypeScript can be used with Express, and Python can be used with FastAPI; developers do not need to implement all the logic related to purchases, balances, and charges on their own.
• Payment vouchers are transmitted via dedicated request headers, and the settlement response provides the results of transactions or point exchanges; this approach is suitable for high-frequency machine-to-machine transactions.
• The interface still needs to support idempotency, retry mechanisms, timeout handling, and error handling for business-related issues, in order to prevent repeated charges in the event of task failures or multiple executions due to network retries.

Settlement in fiat currency and cryptocurrencies

• Consumers can purchase fiat currency using credit cards, or they can buy cryptocurrency with the stablecoins supported by the platform; the actual currencies and networks available depend on what is displayed for each plan and account.
• Fiat payments can be made through Stripe, Braintree, or Visa-related processes, while encryption is achieved using smart accounts, session keys, and on-chain tokens.
• Nevermined states that it does not hold or transfer funds directly; payment processing and settlement are carried out by third-party service providers with the appropriate capabilities.
• Payment methods may incur processing fees, chargebacks, network fees, exchange rate differences, or taxes; these costs must be calculated separately from Nevermined’s platform transaction fee of 1% to 2%.

Bank card authorization and discretionary spending

• Users can create Mandates or Card Delegations for agents, setting limits on total expenditure, maximum number of transactions, validity period, currency, and the API keys that can be used.
• Within the scope of its authorization, an agent can automatically make payments to other agents or services, without the need for the user to go to the settlement page to confirm each transaction.
• The authorization is revocable and becomes invalid once the specified amount, number of transactions, or time limit is reached; transactions that have been confirmed before the revocation can still be completed.
• The expenditure limit represents the total upper bound for the entire duration of authorization, and it is not the budget for a single task; users should set a lower amount based on the frequency of tasks and monitor it continuously.

Observation and revenue analysis

• The platform keeps track of requests, usage, payments, point exchanges, and revenue; it also allows users to view the performance of agents, plans, and customers on the dashboard.
• Premium offers an income dashboard and embeddable payment components, while Enterprise adds customer management and a real-time activity stream.
• Observation data can be exported via API to custom reports, and the gross profit per service can be calculated by combining it with the cost of invoking the model.
• Platform logs are used for operations and auditing, but they cannot replace the merchant’s own accounting records, proof of chargebacks, and customer communication logs.

Prices and packages

The platform does not impose any setup fees or minimum spending requirements; no transaction fees are charged until a settlement occurs. The Premium and Enterprise subscriptions represent optional organizational tools, but they do not exempt one from the 1% to 2% settlement fee.

Taxes and third-party fees incurred by Stripe, Braintree, card issuers, banks, or blockchain platforms may be charged separately. The actual net income depends on the payment method, region, currency, chargebacks, and order terms.

Developer onboarding process

1. First, create an account and an API key in the sandbox, select either the TypeScript or Python SDK, and add the key to the server’s environment variables.
2. Register the name, description, and website of the intelligent agent, as well as its MCP or A2A interfaces, to ensure that consumers can find the correct way to invoke it.
3. Create a Credits Plan or Time Plan, and set the price in fiat currency or cryptocurrency, the total amount of points, the validity period, as well as the agents that have access to them.
4. Add x402 middleware or request validation logic on the server, and configure fixed or dynamic points for each route, MCP tool, or task.
5. Use test consumer purchase scenarios to obtain access credentials, and verify various scenarios such as successful access, insufficient balance, invalid credentials, duplicate requests, and task failures.
6. Before going live, integrate Webhook services as well as mechanisms for logging and revenue monitoring; set up idempotent keys, and define processes for refunds and disputes; also verify the payment merchant accounts in the production environment.
7. After going into operation, API keys should be rotated regularly, unused authorizations revoked, and abnormal expenditures, failed transactions, gross profits, as well as customer complaints should be monitored.

Comparison of payment solutions and connection methods

SDK, API, and open-source status

Nevermined makes the payment SDK, documentation, examples, and smart contracts available; developers can thus examine the client side as well as certain aspects of the protocol implementation. The open-source license does not include trademarks, hosted APIs, fiat currency processing services, partner accounts, dashboards, or production-level settlement services.

Suitable for users and scenarios

• AI agents, search APIs, data services, and model encapsulation providers charge based on the number of calls, duration of use, or results generated.
• The MCP server assigns points to different tools and makes its resources available only to clients who have purchased a plan.
• Multiple agents purchase search, data, reasoning, image, or execution services from one another within A2A workflows.
• Platform-based teams manage multiple merchants, customers, pricing plans, and revenues, while integrating payment components into their own products.
• Consumers set a limited budget for the agent, enabling it to carry out low-risk purchases without the need to confirm each transaction individually.

Advantages and capabilities boundaries

Advantages

• Integrate discovery, pricing, metering, authentication, fiat currency, cryptocurrencies, and settlement into a single process designed for AI calls.
• It supports web pages, MCP, A2A, and x402; it can protect ordinary APIs as well as handle machine-to-machine payments between agents.
• The free tier allows for the registration of a large number of agents and solutions; developers can first test their business models before deciding to pay for organizational management features.
• Card-based authorization allows control over the amount, number of transactions, duration, and cancellation, making it easier to manage risks compared to providing the full payment details to an agent.

Boundary

• Nevermined only provides payment infrastructure; it does not guarantee the accuracy of the agents’ outcomes, consumer satisfaction, the viability of the business model, or the absence of disputes in transactions.
• Platforms rely on card organizations, payment processors, banks, blockchain technologies, and stablecoins; rules, rejections, or disruptions in any of these components can affect settlements.
• The scoring model must be designed by the merchant themselves; setting prices too low will result in losses, and unclear explanations regarding dynamic fee deductions can easily lead to disputes with customers.
• Agent behavior is probabilistic; even when the authorization rules are correct, it may initiate tasks or transactions that do not align with the user’s intentions.
• Encrypted transactions may be irreversible; when the wrong blockchain address, network, or token is used, it is usually difficult to resolve the issue through conventional refund methods.

Security, privacy, and data processing

• Bank cards are processed in the browser using compliant tokenization components; the original card number, security code, and expiration date should not reach the Nevermined servers. What is stored by the platform is the reference generated by the payment provider.
• Card-based delegated usage relies on signature credentials, and it requires limits on expenditure amounts, a validity period, an atomic count mechanism, as well as a revocation system, in order to prevent concurrent requests from exceeding the total budget.
• Dashboard, API, and command-line activities are logged, including authentication, configuration changes, authorization lifecycle events, and management operations, for security, auditing, and compliance purposes.
• The customer retains ownership of its data, granting the platform only a limited permission to process, store, and transmit such data for the purpose of providing services; a separate data processing agreement can be signed if necessary.
• Stripe, Braintree, VGS, Visa, and other payment partners handle the relevant data in accordance with their own rules; cross-border data transfers and the responsibilities of individual controllers cannot be determined solely by Nevermined.
• The testing environment does not have any SLAs, fixed retention periods, or confidentiality guarantees; it should not contain real card data, production keys, customer privacy information, or other sensitive materials.

The terms of service require customers to retain records of transactions, agent operations, and related communications for at least two years; the platform’s audit logs cannot serve as a substitute for the merchant’s own records. If accounts, API keys, Agentic Tokens, or Webhooks are compromised, they must be revoked immediately and the platform informed.

Subscriptions, Refunds, and Responsibilities

• Premium and Enterprise plans are automatically renewed on a monthly basis, and it is necessary to cancel them through the dashboard or via written notice before the renewal date; the cancellation takes effect at the end of the current billing cycle.
• Refunds are not provided for already commenced subscription periods based on the remaining days, and the minimum spending requirement or committed usage specified in the order will still come into effect even if the subscription is canceled.
• If the testing function does not operate in accordance with the specifications outlined in the documentation, the usual remedy is to provide the affected service again, or Nevermined may choose to refund a portion of the platform fees corresponding to the period affected.
• Refunds for orders, chargebacks, and disputes related to service quality that consumers pay to a smart merchant do not equate to subscription refunds provided by Nevermined; merchants must establish their own policies in this regard.
• Customers bear primary responsibility for authorization limits, agent-based trading, compliance with payment network regulations, and informing end-users, and must retain evidence sufficient to handle rejections and regulatory inquiries.

The target for regular services is 99.9% availability per month, excluding maintenance activities that are notified in advance and unforeseeable events; testing functions are not covered by this guarantee. Specific details regarding support response times, compensation, transaction limits, and corporate responsibilities are determined according to the order or main agreement.

Platform and application status

Nevermined is primarily used through a web dashboard, REST APIs, SDKs, CLI tools, MCP servers, and embeddable payment components. The official website makes it clear that the dashboard is not a browser extension, a mining tool, or a downloadable program; it also does not require users to provide their wallet seed phrases or private keys.

There are no official native apps available on the App Store or Google Play for ordinary consumers. Before installing apps or extensions with the same name, it is necessary to verify the identity of the developer; for intelligent payment management, it is best to use the official websites and documentation as entry points.

Summary

Nevermined is suitable for developers and organizations that wish to turn AI agents, MCP tools, or APIs into measurable services. The Free tier allows for creating the first solution, while the Premium and Enterprise tiers offer enhanced capabilities in terms of scalable management, analysis, components, and customer support.

Before going live, it is necessary to design aspects such as business pricing, point consumption, idempotent settlement, authorization limits, refunds, chargebacks, taxation, and data compliance. While payments can be automated, high-risk transactions should still require a low amount, manual approval, and the ability to cancel them quickly.