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Nexior: One-click deployment of vertical Prompt APIs, generating 12,000 RMB/month via pay-per-call

Workflow: Every morning, check the backend for API call volume, error rates, and user renewal data. Identify the top 3 vertical Pr

AGENT

Key Fields

FIELD STAMPS

IndustryAI / LLM

RegionChina

ScaleSME

ChannelOnline

🔧 Workflow

Every morning, check the backend for API call volume, error rates, and user renewal data. Identify the top 3 vertical Prompts by call volume for optimization, adjusting for accuracy and response speed. When a user sends an API request, the system automatically appends the corresponding vertical scenario Prompt template, forwards it to the upstream master model, and cleans the output into a standardized JSON format for the user. At the end of each month, automatically export full call logs and charge users based on actual usage via WeChat Pay, Alipay, or Stripe, while calculating net profit after deducting upstream API costs.

🛠 Setup Requirements

Requires a 2-core, 4GB RAM cloud server (e.g., Alibaba Cloud or Tencent Cloud Light Application Server, approx. 300 RMB/year). Deploy the Nexior or team-api open-source image via Docker and configure the upstream master model's API key to go live. Basic Linux command knowledge and JSON formatting skills are required, along with the ability to debug vertical Prompt accuracy; no algorithmic development experience is needed. The entire process from environment setup to launching the first vertical interface takes about 5-7 days, with Prompt debugging accounting for about 3 days.

🧰 Toolchain

🔧 Nexior
🔧 LuckyKuang/team-api
🔧 gpt2api
🔧 DeepSeek API

💰 Revenue

① Vertical Prompt API pay-per-call (Primary income): SMEs and independent developers pay 6-10 RMB per 1,000 calls. With 40,000 daily calls × 30 days, monthly income is approx. 7,200-12,000 RMB, accounting for ~100% of monthly revenue (estimated from card figures; unit price based on platform public pricing). ② Multi-scenario horizontal expansion: After connecting 2-3 vertical scenarios, cumulative daily call volume reaches 100,000. Monthly income is estimated at 18,000-30,000 RMB (the card mentions exceeding 20,000 RMB). This is also a pay-per-call model and represents scale expansion; ~100% of post-expansion revenue comes from this (estimated value), though the internal split is not disclosed. ③ Reselling for profit: Reselling upstream transit quotas to SMEs. Upstream supplies at 15% of official prices (85% discount) as listed on the platform; the difference is profit. The number of downstream clients and the resale price are not specified, so the proportion is unclear. ④ Opportunity: White-label API output for SaaS in sectors like education and cross-border e-commerce; revenue and market share are not specified.

💸 Cost

Fixed monthly cost for cloud server is approx. 50 RMB. Upstream master model API costs account for about 30%-40% of the selling price. If monthly revenue is 10,000 RMB, API costs are approx. 3,000-4,000 RMB. If using third-party transit authorization interfaces, an additional 10%-20% authorization fee is required, keeping total costs within 50% of revenue.

⏱ Time Investment

1-2 hours per day for maintenance and optimization

🚀 Getting Started

Step 1: Choose one small, familiar vertical scenario, such as Xiaohongshu title generation for e-commerce, preliminary screening of legal contract clauses, or short video script generation; avoid generic scenarios. Step 2: Deploy the Nexior open-source project, connect to low-cost master model APIs like DeepSeek or Qwen, and encapsulate the vertical scenario Prompt into a standard POST interface. Step 3: Publish interface sales information in vertical communities, Xianyu, or Taobao service markets, pricing it 30% lower than official direct-connect prices to validate the minimum viable transaction loop.

🔑 Keys to Success

✅ Vertical scenarios must be narrow enough to be 'triggered by a single sentence' to avoid direct competition with generic models from major tech firms.
✅ Prompts need to be iterated weekly based on real user feedback to ensure output accuracy exceeds that of generic models.
✅ Pricing should be at least 30% lower than official direct-connect API prices while leaving a buffer for potential upstream price hikes.
✅ Use call logs to identify high-margin paths and focus on optimizing Prompt efficiency for high-value scenarios.

⚠️ 风险

⚠️ Upstream model providers may suddenly block transit calls or significantly increase API prices, directly compressing profit margins or leading to losses.
⚠️ A flood of homogeneous vertical interfaces entering the market could trigger a price war, potentially pushing prices below the cost line.
⚠️ Individual developers may be unable to afford large upfront prepayments for upstream APIs; a sudden surge in user calls could lead to quota exhaustion and service interruptions, damaging reputation.

📌 Real Cases

📌 An open-source Nexior tutorial developer encapsulated an 'Ancient Poetry Analysis API' for offline education institutions, charging 7 RMB per 1,000 calls. After connecting 12 institutions, monthly stable income is approx. 6,000 RMB.
📌 Public operational data from the domestic full-model API transit station Koozhan (koozhan.com) in 2025 shows that its vertical encapsulated interfaces had over 80 million monthly calls, accounting for 42% of the platform's total, with a stable SME payment rate of 28%.
📌 An individual maintainer of the GitHub project team-api encapsulated an 'SEO Meta Description Generation API' for cross-border independent site sellers. After connecting to the Shopify App Store, monthly call volume exceeded 3.2 million, with a net monthly income of approx. 9,800 RMB.

Sources