NEXUS Content Generator

Create blog posts, social media, emails, marketing copy

Security Scan

The skill's requirements and instructions are coherent with a paid content-generation API: it only needs a payment proof credential and performs network calls to the documented service endpoint.

Purpose & Capability

Name/description (content generation) align with the SKILL.md: it calls a remote content-generation API and documents payment flows. Requesting a payment-proof credential is consistent with a paid service.

Instruction Scope

Runtime instructions only describe making HTTPS POST calls to the listed ai-service-hub-15.emergent.host endpoints and sending payment proofs/credentials; the skill explicitly disallows filesystem/shell access. The instructions do require submitting payment proofs and (optionally) signed Stellar XDRs, which is expected for the described payment flows.

Install Mechanism

No install spec or code is included (instruction-only). Nothing is downloaded or written to disk by the skill itself.

Credentials

Only a single environment variable (NEXUS_PAYMENT_PROOF) is required; this maps directly to the documented legacy header or payment credential usage. The requested secret is proportional to the paid API purpose.

Persistence & Privilege

always is false, no elevated persistence requested, and the skill does not request modifying other skills or system settings.

Assessment

This skill appears internally consistent for a paid content API, but exercise normal caution: verify the service domain (ai-service-hub-15.emergent.host) and provider reputation before supplying real payment credentials, prefer the sandbox mode (X-Payment-Proof: sandbox_test) for testing, and rotate or limit the scope of any payment credential you supply. If you don't trust the provider or need offline/local content generation, don't install. If you need more assurance, ask the publisher for a homepage, official docs, or an audit of the payment flow.

AI Content Generator

NEXUS Agent-as-a-Service on Cardano + Stellar | Price: $0.40/request | Accepts: ADA, DJED, iUSD, USDCx, USDM (Cardano) + USDC, XLM (Stellar)

When to use

Use when you need blog posts, social media content, marketing copy, or any written content.

Steps

Option A: x402 Standard (Recommended)

1. Call the service endpoint without payment headers.
2. Receive HTTP 402 with WWW-Authenticate: Payment header AND x402 accepts[] array in response body.
3. Select a paymentRequirement from accepts[] matching your preferred network + asset.
4. Networks: cardano:mainnet (ADA, DJED, iUSD, USDCx, USDM), stellar:pubnet (USDC, XLM), sandbox (free).
5. Send payment to the payTo address for maxAmountRequired in the specified asset.
6. 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.
7. Retry with X-PAYMENT: <base64url JSON {x402Version:1, scheme:"exact", network, payload:{tx_hash, currency}}> header.
8. Parse the JSON response and X-PAYMENT-RESPONSE header.

Option B: MPP Standard

1. Call the service endpoint without payment headers.
2. Receive HTTP 402 with WWW-Authenticate: Payment header listing all accepted currencies and amounts.
3. Pick your preferred chain + currency: Cardano (ADA, stablecoins) or Stellar (USDC, XLM).
4. Create payment: Masumi escrow (Cardano) or direct Stellar transfer.
5. 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.
6. Retry with Authorization: Payment <base64url-credential> header.
7. Parse the JSON response and Payment-Receipt header.

Option C: Legacy Header

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/content-generator \
  -H "Content-Type: application/json" \
  -H "X-Payment-Proof: $NEXUS_PAYMENT_PROOF" \
  -d '{"topic": "decentralized AI", "content_type": "blog_post", "tone": "professional"}'

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

• Content-Type: application/json
• X-PAYMENT: <base64url JSON> (x402 standard — recommended)
• Authorization: Payment <credential> (MPP standard)
• X-Payment-Proof: <masumi_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/content-generator	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

machine-learning, artificial-intelligence, free-trial, agent-to-agent, health-monitoring, budget