← 返回 Skills 市场

NEXUS Llm Gateway

Name: NEXUS Llm Gateway
Author: cyberforexblockchain

作者 CyberForexBlockchain · GitHub ↗ · v1.1.0 · MIT-0

cross-platform ✓ 安全检测通过

340

总下载

当前安装

版本数

在 OpenClaw 中安装

/install nexus-llm-gateway

功能描述

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 fa...

使用说明 (SKILL.md)

LLM Gateway

NEXUS Agent-as-a-Service on Cardano + Stellar | Price: $0.10/request | Accepts: ADA, DJED, iUSD, USDCx, USDM (Cardano) + USDC, XLM (Stellar)

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

Option A: x402 Standard (Recommended)

Call the service endpoint without payment headers.
Receive HTTP 402 with WWW-Authenticate: Payment header AND x402 accepts[] array in response body.
Select a paymentRequirement from accepts[] matching your preferred network + asset.
Networks: cardano:mainnet (ADA, DJED, iUSD, USDCx, USDM), stellar:pubnet (USDC, XLM), sandbox (free).
Send payment to the payTo address for maxAmountRequired in the specified asset.
Stellar fee sponsorship: POST your signed XDR to https://ai-service-hub-15.emergent.host/api/mpp/stellar/sponsor — NEXUS pays gas, you need 0 XLM.
Retry with X-PAYMENT: \x3Cbase64url JSON {x402Version:1, scheme:"exact", network, payload:{tx_hash, currency}}> header.
Parse the JSON response and X-PAYMENT-RESPONSE header.

Option B: MPP Standard

Call the service endpoint without payment headers.
Receive HTTP 402 with WWW-Authenticate: Payment header listing all accepted currencies and amounts.
Pick your preferred chain + currency: Cardano (ADA, stablecoins) or Stellar (USDC, XLM).
Create payment: Masumi escrow (Cardano) or direct Stellar transfer.
Stellar fee sponsorship: POST your signed XDR to https://ai-service-hub-15.emergent.host/api/mpp/stellar/sponsor — NEXUS pays gas, you need 0 XLM.
Retry with Authorization: Payment \x3Cbase64url-credential> header.
Parse the JSON response and Payment-Receipt header.

Option C: Legacy Header

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: \x3Cbase64url JSON> (x402 standard — recommended)
Authorization: Payment \x3Ccredential> (MPP standard)
X-Payment-Proof: \x3Cmasumi_payment_id> (legacy — use sandbox_test for free testing)

Accepted Currencies: ADA, DJED, iUSD, USDCx, USDM (Cardano) | USDC, XLM (Stellar) x402 Discovery: GET https://ai-service-hub-15.emergent.host/api/mpp/x402 (all services in native x402 format) MPP Discovery: GET https://ai-service-hub-15.emergent.host/api/mpp/discover Stablecoin Registry: GET https://ai-service-hub-15.emergent.host/api/mpp/stablecoins (includes on-chain policy IDs) Stellar Info: GET https://ai-service-hub-15.emergent.host/api/mpp/stellar (assets, recipient, fee sponsorship) Fee Sponsorship: POST https://ai-service-hub-15.emergent.host/api/mpp/stellar/sponsor (NEXUS pays Stellar gas — agents need 0 XLM)

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

安全使用建议

This skill appears to be what it says: a paid LLM gateway that routes prompts to external LLMs and requires a payment proof credential. Before installing: (1) Confirm you trust the external host (https://ai-service-hub-15.emergent.host) and the skill owner—there's no homepage provided. (2) Treat NEXUS_PAYMENT_PROOF as a secret and avoid putting high-value credentials there until you verify the service. (3) When testing, use the sandbox_test option per the docs to avoid real payments. (4) Understand that your prompts and any payment proofs or signed XDRs will be sent to the provider; do not send sensitive data unless you accept that disclosure. (5) If you need stronger assurance, ask the publisher for provenance (TLS certs, documentation, or an official homepage) before using real funds.

功能分析

Type: OpenClaw Skill Name: nexus-llm-gateway Version: 1.1.0 The nexus-llm-gateway skill is a standard API wrapper for an external multi-model AI gateway service hosted at emergent.host. It correctly requests only network permissions, lacks any filesystem or shell access, and follows a documented payment protocol (MPP/Masumi) for its stated purpose. No indicators of data exfiltration, malicious execution, or prompt injection were found in SKILL.md or README.md.

能力标签

cryptocan-make-purchases

能力评估

✓ Purpose & Capability

The skill claims to be a paid multi-model LLM gateway and its instructions, headers, and accepted currencies align with that purpose. The single required env var (NEXUS_PAYMENT_PROOF) is appropriate for the legacy payment header described and is declared as the primary credential.

ℹ Instruction Scope

Runtime instructions direct network calls to https://ai-service-hub-15.emergent.host and describe payment flows (x402 / MPP / Masumi / Stellar). The skill does not ask the agent to read files, run shell commands, or access other environment variables. However, it will transmit user prompts and payment proofs/signed XDRs to a third-party endpoint, which has privacy and trust implications.

✓ Install Mechanism

Instruction-only skill with no install spec and no code files — minimal install risk and nothing is written to disk by the skill itself.

ℹ Credentials

Only NEXUS_PAYMENT_PROOF is required, which is proportionate to a paid gateway. This value is sensitive (represents payment credentials/IDs); treat it like a secret. The README/skill also requires the user to provide signed Stellar XDRs in some flows, which may expose transaction data to the service—expected for the payment protocol but notable for privacy.

✓ Persistence & Privilege

The skill does not request always:true and is not asking to modify other skills or system config. Network permission is needed (declared). No filesystem or shell access is requested.

如何使用

确保已安装 OpenClaw（本地或 Docker 部署）
在对话框中输入安装命令：/install nexus-llm-gateway
安装完成后，直接呼叫该 Skill 的名称或使用 /nexus-llm-gateway 触发
根据 Skill 的参数说明提供必要输入，即可获得结构化输出

版本历史

v1.1.0

Added x402 payment protocol (Coinbase/Masumi), multi-chain Cardano + Stellar documentation, 10 protocols

v1.0.0

Initial release - Smart multi-model AI gateway on Cardano

元数据

Slug nexus-llm-gateway

版本 1.1.0

许可证 MIT-0

累计安装 0

当前安装数 0

历史版本数 2

常见问题