# extract_image_text Extract English machine-printed text from one caller-supplied PNG, JPEG, or WebP locally with Tesseract. Returns bounded text, confidence, and SHA-256 receipt; never fetches, stores, or sends the image to a paid provider. Agent View of the PolicyLayer registry record for `extract_image_text`. HTML page: https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/extract-image-text ## Facts - Tool: `extract_image_text` - Server: Delx Mcp A2a (`https://api.delx.ai/v1/mcp`) — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a.md - Homepage: https://github.com/davidmosiah/delx-platform - Risk category: Read (Low risk) - Registry record: grade F, identity unverified - Server auth posture: open - Server CORS policy: * - Server rate-limited: yes - Parameters: 4 (1 required) - Recommended policy verdict: Allowed ## Parameters | Parameter | Type | Required | Description | | --- | --- | --- | --- | | `psm` | integer | no | Tesseract page segmentation mode for machine-printed text. | | `image` | string | no | Alias for image_base64. | | `max_chars` | integer | no | | | `image_base64` | string | yes | One base64-encoded PNG, JPEG, or WebP image up to 6 MiB decoded; image/* data URIs are accepted. | Parameters from the server's own tool schema. ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "extract_image_text", "arguments": { "image_base64": "" } } } ``` ## Why extract_image_text is rated Low This is a pure data retrieval operation. It reads text from images using Tesseract OCR and returns the extracted information. There is no creation, modification, deletion, code execution, or financial transaction involved. The tool operates locally on caller-supplied input and returns structured output without altering any persistent state. From the tool's own definition: "The tool 'extract_image_text' performs optical character recognition (OCR) on locally-supplied images. The description explicitly states it 'Extract[s] English machine-printed text' and 'Returns bounded text, confidence, and SHA-256 receipt' with no…" ## Use case AI agents call extract_image_text to retrieve information from Delx Mcp A2a 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 Delx Mcp A2a: ```json { "version": "1", "default": "deny", "tools": { "extract_image_text": {} } } ``` ## Other tools on Delx Mcp A2a (1075) - `util_arr_compact` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-arr-compact.md - `util_arr_drop` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-arr-drop.md - `util_dedent_text` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-dedent-text.md - `util_dedupe_lines` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-dedupe-lines.md - `util_header_map_normalize` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-header-map-normalize.md - `util_http_request_canonicalize` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-http-request-canonicalize.md - `util_remove_punctuation` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-remove-punctuation.md - `util_text_truncate` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-text-truncate.md - `util_truncate_middle` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-truncate-middle.md - `crisis_intervention` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/crisis-intervention.md - `explain_delx_rewards` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/explain-delx-rewards.md - `grounding_protocol` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/grounding-protocol.md - `group_therapy_round` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/group-therapy-round.md - `quick_operational_recovery` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/quick-operational-recovery.md - `quick_session` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/quick-session.md - `start_therapy_session` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/start-therapy-session.md - `util_bool_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-bool-parse.md - `util_cache_control_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-cache-control-parse.md - `util_cagr_simple` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-cagr-simple.md - `util_caip2_build` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-caip2-build.md - `util_caip2_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-caip2-parse.md - `util_categorical_distribution` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-categorical-distribution.md - `util_content_disposition_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-content-disposition-parse.md - `util_content_range_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-content-range-parse.md - `util_csp_directive_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-csp-directive-parse.md - `util_deployment_readiness` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-deployment-readiness.md - `util_dmarc_policy_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-dmarc-policy-parse.md - `util_dns_dmarc_policy_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-dns-dmarc-policy-parse.md - `util_dns_https_record_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-dns-https-record-parse.md - `util_dns_spf_record_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a/util-dns-spf-record-parse.md - …and 1045 more: https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a.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=io-github-davidmosiah-delx-mcp-a2a · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-davidmosiah-delx-mcp-a2a