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Complete reference of every tool the GroupDocs.Signature MCP server exposes to AI agents, with parameters, example prompts, and results. Captured from a live tools/list call against server version 26.9.0 (raw capture: tools-list.generated.json in this section’s source).
| Tool | What it does |
|---|---|
sign | Signs a document with a text, QR code, barcode, or digital certificate signature |
verify | Verifies signatures in a document and reports valid/invalid counts |
search_digital_signatures | Returns certificate details — signer, issuer, serial, validity, timestamp |
search_qr_codes | Finds QR codes and returns their decoded text, page, and position |
search_barcodes | Finds barcodes and returns their decoded values, page, and position |
search_text_signatures | Finds embedded text signatures, stamps, and labels |
search_image_signatures | Finds embedded image signatures and returns them as base64 PNGs |
get_document_info | Returns file type, page count, size, and per-page dimensions |
get_license_status | Reports the active licensing mode and, under metered licensing, consumption |
Every tool takes its document through the same file object — pass either a name from your storage folder or inline content:
{ "file": { "filePath": "contract.pdf" } }
| Field | Type | Description |
|---|---|---|
filePath | string | File path or name in the configured storage folder |
fileContent | string | Base64-encoded file content (alternative to filePath) |
fileName | string | Original filename with extension — required with fileContent. Since 26.9.0 it also works on its own, resolved from the storage folder exactly like filePath |
You rarely write this JSON yourself: the AI agent does, from your plain-language prompt. Missing files are not an error to fear — the tool responds with the list of available files so the agent can correct itself.
- sign
- verify
- search_digital_signatures
- search_qr_codes
- search_barcodes
- search_text_signatures
- search_image_signatures
- get_document_info
- get_license_status
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