Complete AI Training

AI app for it and development · no coding needed

Agent tool access and billing gateway

Give AI agents one place to discover, call, and pay for external data and tool services without wiring up separate APIs.

Made for: Engineering teams running AI agents that need external data and tool services

What Agent tool access and billing gateway looks like
Open the demo For members · a working demo with sample data

What it does for you

The problem

Agents cannot discover, call and pay for external services without wiring up separate APIs, keys and subscriptions.

What it gives you

Reviewed agent tool access and billing gateway

What you give it

Agent framework configurationprovider requirementsusage limitsbilling rules

Build your own version of AgentKey, zero.xyz and more

One app with what these 3 AI tools do, yours to keep and change: AgentKey, zero.xyz, Monid.

Everything these tools do, in one app

  • Agent tool discovery Lets an agent find and choose external tools or data services at runtime instead of hardcoding them.Found in AgentKey, zero.xyz, Monid
  • Single install or setup Replaces manual integration of many separate APIs with one setup step.Found in AgentKey, zero.xyz, Monid
  • No per-service API keys Removes the need to configure and manage a separate API key for each service.Found in AgentKey, zero.xyz, Monid
  • Consolidated billing Puts payments for many tools into one account or balance instead of many subscriptions.Found in AgentKey, zero.xyz, Monid
  • Pay-per-call access Charges for individual tool or data calls rather than recurring subscriptions.Found in zero.xyz, Monid
  • Free starter credits Provides free credits or a free tier so users can try the service before paying.Found in AgentKey, zero.xyz, Monid
  • Curated provider catalog Offers a vetted or indexed set of external services the agent can call.Found in AgentKey, zero.xyz, Monid
  • Broad data categories Covers many domains such as search, social, finance, crypto, business, ecommerce, weather, and maps.Found in AgentKey, Monid
  • Tool shortlisting Returns a small set of candidate tools with descriptions so the agent can pick one without loading every endpoint.Found in AgentKey
  • Schema loading on demand Loads the full definition of a chosen tool only when the agent is about to call it.Found in AgentKey
  • Automatic provider failover When a provider errors, gives the agent equivalent alternatives so it can retry with a different tool.Found in AgentKey
  • Provider provenance in transcript Shows which named provider answered each call in the agent's call transcript.Found in AgentKey
  • Provider health monitoring Continuously tracks latency, error rates, and availability and demotes or removes degraded providers.Found in AgentKey
  • Hosted proxy routing Routes all calls through a hosted proxy that enables pooled billing and failover.Found in AgentKey
  • Revocable agent credential Uses a separate agent API key that can be revoked without affecting the user's login.Found in AgentKey
  • Micropayment protocol support Supports x402 and MPP micropayment protocols for pay-per-call endpoints.Found in zero.xyz
  • Agent-driven tool reviews Lets agents score and review tools on success, reliability, and value to surface better options.Found in zero.xyz
  • Terminal and CLI integration Works from the terminal or CLI so it fits existing agent workflows and automation pipelines.Found in zero.xyz
  • Social and profile data Pulls posts and, on supported platforms, comments and enriched profile details for lead generation and analysis.Found in Monid
  • Multi-framework compatibility Works with multiple agent frameworks so agents can request tools at runtime.Found in Monid

How it works, step by step

  1. Discover external tools and data services at runtime
  2. Shortlist candidate tools with descriptions for agent choice
  3. Load full tool schemas only when a call is about to happen
  4. Route calls through a hosted proxy
  5. Remove per-service API keys from agent configuration
  6. Issue a revocable agent credential separate from user login
  7. Consolidate payments for many tools into one account or balance
  8. Charge per call rather than recurring subscriptions
  9. Provide free starter credits for evaluation
  10. Support x402 and MPP micropayment protocols
  11. Monitor provider latency, error rates and availability
  12. Demote or remove degraded providers
  13. Fail over to equivalent providers on error
  14. Show named provider provenance in the call transcript
  15. Collect agent-driven tool reviews on success, reliability and value
  16. Expose terminal and CLI access for existing agent workflows
  17. Support multiple agent frameworks requesting tools at runtime
  18. Compare the reviewed result with the recorded baseline and value assumptions
  19. Capture corrections and named-owner approval before consequential use
  20. Export a versioned reviewed agent tool access and billing gateway with source references and unresolved questions

Build it yourself with your AI system

Build this app yourself, no coding needed

Start with a quick version you can try in a few minutes. Like it? Then build the full app by copying and pasting our step-by-step instructions: everything is prepared for you.

Sign in to see how to build it yourself

Build a quick version to try, or get the full app pack for Agent tool access and billing gateway with the step-by-step building instructions. You don't need any technical skills: you copy, paste and answer a few questions. Both are included in the membership.

Sign in Become a member

4 Have it built for you days to a few weeks

Rather not do it yourself, or want it fully tailored to your data, your way of working and your brand? Nexibeo builds Agent tool access and billing gateway with you.

Have Nexibeo build it

What's in the app pack

Included in the Complete AI Training membership.

  • The building instructions your AI follows, step by step
  • The questions your AI will ask you about your business before it starts
  • A clickable demo you can open in your browser, to see how it should work
  • A detailed blueprint of the screens, the information it keeps and the checks it runs

Become a member to get the app packAlready a member? Sign in

The files, for the technically curious
  • START-HERE.mdHow to build it with your own AI (read first)3 KB
  • README.mdOverview and links4 KB
  • questions.mdQuestions to answer before you build2 KB
  • prompt-cloudflare.mdThe full build prompt, hosted on Cloudflare24 KB
  • prompt-vps.mdThe same build on your own server (Docker)24 KB
  • spec.jsonData model, API, AI pipeline, acceptance criteria12 KB
  • demo/index.htmlThe working demo on sample data199 KB

Questions

Do I need to know how to code?

No. You copy and paste the prompts on this page into ChatGPT or Claude, and the AI does the building. When it asks you something, you answer in your own words.

What does it cost?

The quick version, the app pack and the step-by-step instructions are for members: you pay the membership price, not a price per app (see the plans). Building the full app uses your own ChatGPT or Claude subscription. Putting it online is often cheap or no cost at the start, and your AI tells you before anything costs money.

How long does it take?

The quick version: about two minutes. The real app: an afternoon for a first version you can use, longer if you want every feature.

Can I change it to fit my business?

Yes. Tell your AI what to change in plain words, like “add a column for the price” or “use our logo and colours”. Or have Nexibeo build and customise it for you.

More detailsHow the AI works, safeguards and what to build first

Give AI agents one place to discover, call, and pay for external data and tool services without wiring up separate APIs. For engineering teams running AI agents that need external data and tool services, convert a curated provider catalog, agent credentials and a hosted proxy into a reviewed agent tool access and billing gateway. The benefit is a testable hypothesis, measured through successful tool calls per agent task and cost per resolved call; do not assume that AI output alone produces business value.

Confirm the buyer's problem and scope, collect agent framework configuration, provider requirements, usage limits and billing rules, then follow this sequence: 1. Discover external tools and data services at runtime. 2. Shortlist candidate tools with descriptions for agent choice. 3. Load full tool schemas only when a call is about to happen. Resolve uncertain cases with qualified reviewers, approve reviewed agent tool access and billing gateway, and measure successful tool calls per agent task and cost per resolved call against a documented baseline.

How the AI works

Use AI to interpret permitted inputs, suggest structured mappings and generate candidate outputs for the three stated task modules. Use deterministic code for arithmetic, schema validation, hard constraints and reproducible tests. Review source-linked explanations and uncertainty before accepting results. One fixed agent framework and provider set; final provider selection and payment authorization remain human. A model suggestion is never a verified fact, professional decision or authorization to act.

Safeguards

Preserve agent identity, source attribution, call accuracy and usage permissions. Engineering owners approve substantive changes and payment scope. One fixed agent framework and provider set; final provider selection and payment authorization remain human. Keep all consequential actions under authorized human control and do not fabricate missing inputs, permissions, professional judgments or market evidence.

What to build first

Pilot scope: One fixed agent framework and provider set; final provider selection and payment authorization remain human. Implement one approved input format, a bounded representative case set and the first two task modules: discover external tools and data services at runtime; shortlist candidate tools with descriptions for agent choice. Support the third module with operator review: load full tool schemas only when a call is about to happen. Include source references, corrections, basic organization access, approval states, export and value measurement. Use managed operator assistance for unresolved exceptions. The cost estimate covers this narrow prototype, not unrestricted multi-tenant scale, complex production integrations, specialist certification or physical operations.

What it can connect to

Agent-owned framework configuration, authorized provider accounts and permitted billing sources. Cloud call storage, provider API import/export and payment destinations. Start with file exchange and validate destination specifications before promising direct publishing. Start with authorized file exchange. Validate current provider access, usage rights and schema behavior before promising a connector.

The screens in detail

Primary screens: Provider catalog and shortlist, Agent call transcript, Billing and credits. Use a searchable provider list, a central call view with shortlisted tools and loaded schemas, and a right-hand panel for health, provenance and cost. Let users compare candidate providers side by side. Display active, degraded and removed provider states. Provide a client preview link with comments anchored to the relevant call. Make the task-specific outcome reviewed agent tool access and billing gateway visible beside its evidence, review state and value baseline.