VisionToolMCP
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| GEMINI_API_KEY | No | Gemini API key. | |
| OPENAI_API_KEY | No | OpenAI API key. | |
| VISIONTOOL_MODEL | No | Model to use. Defaults: claude-opus-4-8 (anthropic), gpt-4o-mini (openai), gemini-3.5-flash (gemini). | |
| ANTHROPIC_API_KEY | No | Anthropic API key. | |
| VISIONTOOL_API_KEY | No | Unified API key for any provider. Alternative to provider-specific keys. | |
| VISIONTOOL_RETRIES | No | Number of retries on temporary API failures. | 2 |
| VISIONTOOL_BASE_URL | No | Base URL for the API. | |
| VISIONTOOL_API_FORMAT | No | API format: anthropic, openai, or gemini. | anthropic |
| VISIONTOOL_TIMEOUT_MS | No | Request timeout in milliseconds. | 60000 |
| VISIONTOOL_RETRY_BASE_MS | No | Base delay in milliseconds for exponential backoff. | 250 |
| VISIONTOOL_MAX_IMAGE_BYTES | No | Maximum image size in bytes for local/base64 images. | 5242880 |
| VISIONTOOL_ALLOWED_CALLER_PREFIXES | No | Comma-separated list of allowed caller model prefixes. | glm,deepseek |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| describe_imageC | 【仅限 GLM/DeepSeek 系列模型调用】Describe an image for a text-only agent. Accepts a local path, base64 image data, or URL. |
| ocr_imageB | 【仅限 GLM/DeepSeek 系列模型调用】Extract visible text from an image with optional language and layout hints. |
| answer_about_imageA | 【仅限 GLM/DeepSeek 系列模型调用】Answer a specific question using visual evidence from one image. |
| compare_imagesA | 【仅限 GLM/DeepSeek 系列模型调用】Compare two images and summarize relevant differences for a text-only agent. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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