How do I install the Nexus LLM Gateway skill?

Run npx skillmds@latest add dvcrn/nexus-llm-gateway in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Nexus LLM Gateway safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Nexus LLM Gateway?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Nexus LLM Gateway free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Nexus LLM Gateway?

dvcrn (@dvcrn) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Nexus LLM Gateway by dvcrn — Agent Skill

Name: Nexus LLM Gateway
Rating: 4.666666666666667 (3 reviews)
Author: dvcrn

Nexus LLM Gateway

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.

dvcrn Updated Sep 8, 2026 32 repo stars

File contents

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

Send a POST request to the NEXUS API endpoint with your input.
Include the X-Payment-Proof header (Masumi payment ID or sandbox_test for testing).
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

URL	Method	Data Sent
`https://ai-service-hub-15.emergent.host/api/original-services/llm-gateway`	POST	Input parameters as JSON body

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

---name: nexus-llm-gatewaydescription: 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.---# LLM Gateway> NEXUS Agent-as-a-Service on Cardano | Price: $0.10/request## When to useUse 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.## Steps1. 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```bashcurl -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| URL | Method | Data Sent ||-----|--------|-----------|| `https://ai-service-hub-15.emergent.host/api/original-services/llm-gateway` | POST | Input parameters as JSON body |## 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 NoteThis 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 StatementBy 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`

Frequently asked questions