name: nexus-llm-gateway description: "Smart multi-model AI gateway on Cardano. Routes prompts to the best LLM (GPT-5.2, Claude Sonnet 4.5, GPT-4o, Claude Haiku 4.5, GPT-4o-mini) with automatic fallback, tiered pricing, and OpenAI-compatible format. Pay with ADA via Masumi." version: 1.0.0 capabilities:

• id: invoke-llm-gateway description: "Smart multi-model AI gateway on Cardano. Routes prompts to the best LLM (GPT-5.2, Claude Sonnet 4.5, GPT-4o, Claude Haiku 4.5, GPT-4o-mini) with automatic fallback, tiered pricing, and OpenAI-compatible format. Pay with ADA via Masumi." permissions: network: true filesystem: false shell: false inputs:
• name: prompt type: string required: true description: "The prompt to send"
• name: tier type: string required: false description: "The tier parameter"
• name: model type: string required: false description: "Optional: specific model override"
• name: task_type type: string required: false description: "The task_type parameter"
• name: messages type: array required: false description: "OpenAI-compatible messages array" outputs: type: object properties: result: type: string description: "The service response" requires: env: [NEXUS_PAYMENT_PROOF] metadata: '{"openclaw":{"emoji":"\u26a1","requires":{"env":["NEXUS_PAYMENT_PROOF"]},"primaryEnv":"NEXUS_PAYMENT_PROOF"}}'

LLM Gateway

NEXUS Agent-as-a-Service on Cardano | Price: $0.10/request

When to use

Use when you need to call any LLM (GPT-5.2, Claude Sonnet 4.5, GPT-4o, Claude Haiku 4.5, GPT-4o-mini) through one endpoint. Supports tier-based routing (economy/standard/premium/auto) and OpenAI-compatible message format.

Steps

1. Send a POST request to the NEXUS API endpoint with your input.
2. Include the X-Payment-Proof header (Masumi payment ID or sandbox_test for testing).
3. Parse the JSON response and return the result.

API Call

curl -X POST https://ai-service-hub-15.emergent.host/api/original-services/llm-gateway \
  -H "Content-Type: application/json" \
  -H "X-Payment-Proof: $NEXUS_PAYMENT_PROOF" \
  -d '{"prompt": "Write a Python function to sort a list", "tier": "auto", "task_type": "code"}'

Endpoint: https://ai-service-hub-15.emergent.host/api/original-services/llm-gateway Method: POST Headers:

• Content-Type: application/json
• X-Payment-Proof: <masumi_payment_id> (use sandbox_test for free testing)

External Endpoints

Security & Privacy

• All data is sent to https://ai-service-hub-15.emergent.host over HTTPS/TLS.
• No data is stored permanently; requests are processed and discarded.
• Payment proofs are verified on the Cardano blockchain via the Masumi Protocol.
• No filesystem access or shell execution required.

Model Invocation Note

This skill calls the NEXUS AI service API which uses LLM models (GPT-5.2, Claude Sonnet 4.5, GPT-4o) to process requests. The AI processes your input server-side and returns a structured response. You may opt out by not installing this skill.

Trust Statement

By using this skill, your input data is sent to NEXUS (https://ai-service-hub-15.emergent.host) for AI processing. Payments are non-custodial via the Masumi Protocol on Cardano. Only install if you trust NEXUS as a service provider. Visit https://ai-service-hub-15.emergent.host for full documentation.

Tags

llm, ai, gateway, multi-model, gpt, claude, router, cardano