# extract_text_from_image

Extract text from an image using OCR

Agent View of the PolicyLayer registry record for `extract_text_from_image`. HTML page: https://policylayer.com/tools/0x-hewm-percepta-mcp/extract-text-from-image

## Facts

- Tool: `extract_text_from_image`
- Server: Percepta MCP Server (`0x-hewm/percepta-mcp`) — https://policylayer.com/tools/0x-hewm-percepta-mcp.md
- Homepage: https://github.com/0x-hewm/percepta-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "extract_text_from_image",
    "arguments": {}
  }
}
```

## Why extract_text_from_image is rated Low

OCR (Optical Character Recognition) is a passive data extraction mechanism that analyzes an image and returns recognized text. It performs no side effects, creates no resources, executes no code, and modifies nothing.

From the tool's own definition: "Tool name 'extract_text_from_image' and description 'Extract text from an image using OCR' indicate a read-only operation that retrieves text data from an image without modifying or executing anything."

## Use case

AI agents call extract_text_from_image to retrieve information from Percepta MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Percepta MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "extract_text_from_image": {}
  }
}
```

## Other tools on Percepta MCP Server (21)

- `ai_analyze` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/ai-analyze.md
- `ai_chat` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/ai-chat.md
- `ai_generate` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/ai-generate.md
- `browser_click` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/browser-click.md
- `browser_fill` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/browser-fill.md
- `browser_navigate` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/browser-navigate.md
- `browser_wait_for_element` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/browser-wait-for-element.md
- `execute_test_case` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/execute-test-case.md
- `generate_and_execute_test` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/generate-and-execute-test.md
- `generate_test_case` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/generate-test-case.md
- `monitor_and_analyze_page` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/monitor-and-analyze-page.md
- `start_devtools_monitoring` — Execute — https://policylayer.com/tools/0x-hewm-percepta-mcp/start-devtools-monitoring.md
- `analyze_devtools_anomalies` — Read — https://policylayer.com/tools/0x-hewm-percepta-mcp/analyze-devtools-anomalies.md
- `analyze_image` — Read — https://policylayer.com/tools/0x-hewm-percepta-mcp/analyze-image.md
- `browser_extract_text` — Read — https://policylayer.com/tools/0x-hewm-percepta-mcp/browser-extract-text.md
- `browser_screenshot` — Read — https://policylayer.com/tools/0x-hewm-percepta-mcp/browser-screenshot.md
- `collect_devtools_data` — Read — https://policylayer.com/tools/0x-hewm-percepta-mcp/collect-devtools-data.md
- `compare_images` — Read — https://policylayer.com/tools/0x-hewm-percepta-mcp/compare-images.md
- `extract_structured_data` — Read — https://policylayer.com/tools/0x-hewm-percepta-mcp/extract-structured-data.md
- `scrape_website` — Read — https://policylayer.com/tools/0x-hewm-percepta-mcp/scrape-website.md
- `generate_devtools_report` — Write — https://policylayer.com/tools/0x-hewm-percepta-mcp/generate-devtools-report.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=0x-hewm-percepta-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/0x-hewm-percepta-mcp