polymerdao/polymer-pay-zai

Z.ai

Z.ai's GLM series large language models, including GLM-4.5 and GLM-4.6, focus on advanced reasoning, coding, and agentic capabilities through a unique Mixture-of-Experts (MoE) architecture through the Polymer Pay proxy. No API key needed — payment is handled automatically.

Authentication

All requests route through the Polymer Pay proxy. Include your Polymer Pay API key in every request:

{
  "headers": {
    "Content-Type": "application/json",
    "x-polymer-pay-api-key": "{{POLYMER_PAY_API_KEY}}"
  }
}

Base URL: https://pay.polymerlabs.org/proxy/https/x402.orth.sh/zai

To get an Polymer Pay API key, sign up at https://my.pay.polymerlabs.org/dashboard/api-keys.

Common Operations

Chat Completions

Create chat completion with GLM models.

Pricing: $0.01

{
  "method": "POST",
  "url": "https://pay.polymerlabs.org/proxy/https/x402.orth.sh/zai/api/paas/v4/chat/completions",
  "headers": {
    "Content-Type": "application/json",
    "x-polymer-pay-api-key": "{{POLYMER_PAY_API_KEY}}"
  },
  "body": {
    "model": "glm-4",
    "messages": [
      {"role": "user", "content": "What are the latest developments in AI?"}
    ]
  }
}

Response: JSON with AI-generated response.

Generate Images

Generate images from text prompts using CogView.

Pricing: $0.01

{
  "method": "POST",
  "url": "https://pay.polymerlabs.org/proxy/https/x402.orth.sh/zai/api/paas/v4/images/generations",
  "headers": {
    "Content-Type": "application/json",
    "x-polymer-pay-api-key": "{{POLYMER_PAY_API_KEY}}"
  },
  "body": {
    "model": "CogView-4-250304",
    "prompt": "A beautiful sunset over mountains"
  }
}

Response: JSON with generated image URLs.

Generate Videos

Generate videos from text or images using CogVideoX.

Pricing: $0.01

{
  "method": "POST",
  "url": "https://pay.polymerlabs.org/proxy/https/x402.orth.sh/zai/api/paas/v4/videos/generations",
  "headers": {
    "Content-Type": "application/json",
    "x-polymer-pay-api-key": "{{POLYMER_PAY_API_KEY}}"
  },
  "body": {
    "model": "cogvideox-3",
    "prompt": "A cat playing with a ball"
  }
}

Response: JSON with generated video.

Web Search

Search the web for AI-powered results.

Pricing: $0.01

{
  "method": "POST",
  "url": "https://pay.polymerlabs.org/proxy/https/x402.orth.sh/zai/api/paas/v4/web_search",
  "headers": {
    "Content-Type": "application/json",
    "x-polymer-pay-api-key": "{{POLYMER_PAY_API_KEY}}"
  },
  "body": {
    "search_engine": "search-prime",
    "search_query": "latest AI news"
  }
}

Response: JSON with search results.

Read URL

Read and parse content from URLs.

Pricing: $0.01

{
  "method": "POST",
  "url": "https://pay.polymerlabs.org/proxy/https/x402.orth.sh/zai/api/paas/v4/reader",
  "headers": {
    "Content-Type": "application/json",
    "x-polymer-pay-api-key": "{{POLYMER_PAY_API_KEY}}"
  },
  "body": {
    "url": "https://example.com/article",
    "return_format": "markdown"
  }
}

Response: JSON with extracted content.

Upload File

Upload auxiliary files for translation or other purposes.

Pricing: $0.01

{
  "method": "POST",
  "url": "https://pay.polymerlabs.org/proxy/https/x402.orth.sh/zai/api/paas/v4/files",
  "headers": {
    "Content-Type": "application/json",
    "x-polymer-pay-api-key": "{{POLYMER_PAY_API_KEY}}"
  },
  "body": {
    "purpose": "agent",
    "file": "file_content_here"
  }
}

Response: JSON with file upload confirmation.

Translation Agent

Use the general translation API for multilingual translation.

Pricing: $0.01

{
  "method": "POST",
  "url": "https://pay.polymerlabs.org/proxy/https/x402.orth.sh/zai/api/v1/agents",
  "headers": {
    "Content-Type": "application/json",
    "x-polymer-pay-api-key": "{{POLYMER_PAY_API_KEY}}"
  },
  "body": {
    "agent_id": "general_translation",
    "messages": [{"role": "user", "content": "Translate to Spanish: Hello world"}]
  }
}

Response: JSON with translated content.

When to Use

• Chat — User wants to use GLM models for conversation
• Image generation — User needs images from CogView models
• Video generation — User wants to create videos from text/images
• Web search — User needs AI-powered web search
• Content extraction — User wants to extract content from URLs

Best Practices

• Choose model — Use glm-4, glm-4.5, or glm-4.6 for different capabilities
• Set temperature — Control randomness (0.0-1.0)
• Enable thinking — Use thinking parameter for chain-of-thought
• Use tools — Provide function definitions for tool use
• For errors — See @skills/polymer-pay-api-errors/SKILL.md for complete error code reference and troubleshooting