laserfiche-mcp

Community project — not affiliated with or endorsed by Laserfiche.
A Model Context Protocol server that lets
Claude (Desktop, Code, or any MCP client) search, read, and — when you opt
in — write documents in a self-hosted
Laserfiche repository. The same binary is
also a full command-line client (ls, get, cat, search, manifest,
dedupe, ...) for the deterministic work that needs no model at all.
Current release v2.3.0 — read and write tools for self-hosted Repository
API v1 and v2, a one-click Claude Desktop extension, an optional remote HTTP
transport with per-user OAuth for web clients, and a full CLI (ls, get,
cat, search, manifest, dedupe, ...) for the deterministic work that
needs no model at all. Read-only by default; write tools register only with
LF_READ_ONLY=false and are guarded by path fences and a two-step,
parameter-bound confirmation flow. See the CHANGELOG for
per-release notes and the roadmap for what's next.
Quick start
uv tool install laserfiche-mcp
laserfiche-mcp setup
laserfiche-mcp ls 1
Then wire it into your MCP client — see
Claude Desktop and
Claude Code below. Prefer environment variables
over the wizard? See Configure. Want a no-terminal install
instead? See the Claude Desktop extension.
What you can do with it
Once connected, Claude can:
Read (always available):
- Search the repository with native Laserfiche search syntax, by name pattern, or via the LLM-friendly
search_natural flow (asks the server for templates first, then runs with automatic 400 repair)
- List the contents of any folder, look up an entry by ID or path, read all template field values, list field/tag/template/link definitions and audit reasons
- Inspect document metadata, fetch the raw edoc as base64, or extract text locally (PDF, DOCX, PPTX, XLSX, EML, HTML, RTF,
text/*) — all via get_document_edoc(..., mode=...)
Write (opt-in via LF_READ_ONLY=false):
- Create folders, import documents, copy entries (async), rename and move entries
- Set, merge, and clear fields, tags, and links on an entry
- Assign and remove templates — with optional client-side validation of repository-required fields before the API call
- Delete entries (folders cascade), edocs, and specific page ranges — all with a two-step preview→confirm-token flow, HMAC-signed and bound to operation + entry + the operation's own parameters, expiring after 5 minutes
Operate safely — every write checks the entry's path against
LF_WRITE_PATHS_ALLOW / LF_WRITE_PATHS_DENY, folder deletes refuse
unless force_large_delete=true when child count exceeds
LF_DELETE_FOLDER_MAX_DESCENDANTS, and LF_WRITE_TOOLS_ALLOWED can
scope a deployment to e.g. metadata-only writes.
Install
Two ways to run it, depending on who you are.
For everyone — the Claude Desktop extension
Chat with your Laserfiche repository from Claude Desktop — no terminal, no config files.
1. Download
Download the extension (always the newest version), or browse the latest release. You'll need Claude Desktop installed first.
2. Double-click & connect
Double-click the file, click Install, and fill in the short form that appears:
| Field | What to enter |
|---|
| Repository API URL | Your Laserfiche server address, e.g. https://your-server/LFRepositoryAPI |
| Repository name | The repository you pick when signing in to Laserfiche Web Access |
| Username | A Laserfiche account that can read the repository |
| Password | That account's password — stored safely in your computer's keychain |
Not sure what goes where? Ask whoever runs Laserfiche at your organization — it takes them a minute.
3. Ask
Open a chat and try:
- "Find every invoice from March in the Accounting folder."
- "What's in the Onboarding folder? Summarize the newest document."
- "Search for contracts mentioning Acme and list them with dates."
NOTE
Claude can look, but never change or delete — the extension is read-only by default, and your password lives in your operating system's keychain, not a text file.
Full walkthrough for end users and team rollouts: docs/desktop-extension.md.
For developers — the Python package
uvx laserfiche-mcp
pip install laserfiche-mcp
Requires Python 3.10+ and a reachable Laserfiche Repository API Server
(self-hosted) with a service account that can read it, plus any MCP client
(Claude Desktop, Claude Code, MCP Inspector). For local development:
git clone https://github.com/SamuelSHernandez/laserfiche-mcp
cd laserfiche-mcp
uv sync --extra dev
Copy the example file and fill in your repository details:
cp .env.example .env
$EDITOR .env
Minimum required variables for self-hosted password-grant auth:
| Variable | Example |
|---|
LF_REPO_API_URL | https://lf.example.com/LFRepositoryAPI |
LF_REPOSITORY_ID | my-repo |
LF_API_VERSION | v1 (default) or v2 — see below |
LF_USERNAME | service-account |
LF_PASSWORD | (your service account password) |
LF_AUTH_MODE | password |
LF_READ_ONLY | true (default — see Writes section below) |
Optional write-mode variables (fences and allowlists default off; the delete batch cap and required-field validation default on — see the Safety model section for context):
| Variable | Default | Purpose |
|---|
LF_READ_ONLY | true | Set false to register the write tools |
LF_WRITE_PATHS_ALLOW | unset | Comma-separated path prefixes where writes are permitted (case-insensitive) |
LF_WRITE_PATHS_DENY | unset | Comma-separated path prefixes where writes are refused (deny wins over allow) |
LF_WRITE_TOOLS_ALLOWED | unset | Comma-separated write-tool names to scope what registers; e.g. metadata-only |
LF_DELETE_FOLDER_MAX_DESCENDANTS | 50 | Refuse folder deletes above this immediate-child count unless force_large_delete=true |
LF_REQUIRE_AUDIT_REASON | false | When true, delete_entry refuses to execute without audit_reason_id |
LF_VALIDATE_REQUIRED_FIELDS | true | Validate the target template's own required fields (fields with a defaultValue are skipped) client-side before assign_template PUTs |
LF_VALIDATE_NAMES | true | Pre-flight field / tag / template / link-type names against cached schema definitions; returns invalid_*_name instead of an opaque 400 |
LF_SCHEMA_CACHE_TTL_SECONDS | 300 | Cache window for the schema-definition lookups that back LF_VALIDATE_NAMES and LF_VALIDATE_REQUIRED_FIELDS. Set to 0 to disable caching. |
LF_IMPORT_MAX_BYTES | 25 MB | Client-side cap on import_document payload size |
LF_IMPORT_SOURCE_DIRS | unset | Comma-separated local directories import_document may read file_path from (symlinks resolved before comparison). Unset: any path the MCP process can read is accepted. |
LF_EDOC_MAX_BYTES | 25 MB | Cap on get_document_edoc downloads in bytes/text modes |
LF_SEARCH_TIMEOUT_SECONDS | 60 | How long search_content waits for an async search before abandoning it |
LF_SEARCH_POLL_INTERVAL_SECONDS | 1 | Delay between search_content status polls; backs off toward 2s on long searches |
LF_SEARCH_CONTEXT_HITS_MAX | 10 | Hard cap on matched passages returned per entry by search_content |
LF_LEGACY_TOOL_NAMES | false | Set true to also register the v1.x verb-first aliases alongside the v2 names. Default changed to false in v2.3.0 — registering both roughly doubles the per-request tool catalog; set true if you still call tools by their legacy names |
LF_CONFIRMATION_SECRET | unset | Optional secret the destructive-op confirmation tokens are signed with. Unset: random per-process key, so a restart invalidates pending preview tokens (the safer single-instance default). Set it to keep tokens valid across restarts / across instances sharing the secret. Treat like a password. |
LF_LOG_FORMAT | text | json emits one JSON object per log line (for jq / Datadog / Splunk) |
See .env.example for the full list including OAuth
config, pagination limits, request timeout, retry attempts, and SSL
verification.
API version note: LFRepositoryAPI ships with different routing
surfaces across builds. Older self-hosted installs expose /v1/...
paths; newer ones expose /v2/.... Probe your server with:
curl {LF_REPO_API_URL}/v1/Repositories
curl {LF_REPO_API_URL}/v2/Repositories
Whichever returns a 200 with a JSON repo list is your version.
If the wrong value is set, every call fails with
400 UnsupportedApiVersion. The default is v1 because that is what
most current on-prem installations expose.
Auth note: Laserfiche self-hosted does not accept HTTP Basic auth.
The server exchanges your username/password for a bearer token at
POST /{api_version}/Repositories/{repository_id}/Token on first
request and refreshes it automatically before expiry. The same flow
works on both v1 and v2.
Connect to Claude Desktop
Edit ~/Library/Application Support/Claude/claude_desktop_config.json
(macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
{
"mcpServers": {
"laserfiche": {
"command": "uvx",
"args": ["laserfiche-mcp"],
"env": {
"LF_REPO_API_URL": "https://lf.example.com/LFRepositoryAPI",
"LF_REPOSITORY_ID": "my-repo",
"LF_API_VERSION": "v1",
"LF_USERNAME": "service-account",
"LF_PASSWORD": "replace-me",
"LF_AUTH_MODE": "password",
"LF_READ_ONLY": "true"
}
}
}
}
Restart Claude Desktop. The Laserfiche tools will appear in the tool picker.
Connect to Claude Code
claude mcp add laserfiche -- uvx laserfiche-mcp
(Pass env vars via --env LF_REPO_API_URL=... flags or set them in your
shell before running Claude Code.)
Test it locally with the MCP Inspector
npx @modelcontextprotocol/inspector uvx laserfiche-mcp
This opens a UI where you can call each tool directly and watch the
JSON-RPC traffic — useful for verifying endpoint shapes against your
specific Repository API Server version before wiring it into Claude.
Remote HTTP (web clients)
The default transport is stdio — for local clients that launch the server
as a subprocess (Claude Desktop, Claude Code, Cursor, Gemini CLI). Web and
cloud clients (claude.ai custom connectors, ChatGPT connectors) can't
spawn a local process; they connect to a URL. The same server can serve those
clients over Streamable HTTP:
laserfiche-mcp --http
laserfiche-mcp --http --port 9000
Configuration (all optional, LF_* env like everything else):
| Variable | Default | Purpose |
|---|
LF_HTTP_HOST | 127.0.0.1 | Bind interface. Loopback by default — not reachable off the machine. |
LF_HTTP_PORT | 8000 | Listen port. |
LF_HTTP_PATH | /mcp | Endpoint path; clients connect to http(s)://host:port/mcp. |
LF_HTTP_AUTH_TOKEN | (unset) | Static shared bearer token. Simplest auth; ignored when OAuth is on. |
LF_HTTP_OAUTH_ISSUER | (unset) | Turns on per-user OAuth — verifies each caller's token against this authorization server. |
The --http server chooses its auth by precedence: OAuth (if
LF_HTTP_OAUTH_ISSUER is set) → static token (if LF_HTTP_AUTH_TOKEN) →
none (loopback only). OAuth is the multi-user path for claude.ai / ChatGPT;
see Per-user OAuth below.
Verify locally with the Inspector (point it at the URL, not the command):
laserfiche-mcp --http &
npx @modelcontextprotocol/inspector
Per-user OAuth
For a multi-user connector, run the server as an OAuth 2.1 Resource Server —
each user signs in through your existing identity provider (LFDS, Microsoft
Entra, Okta, Auth0, Google) and the server verifies their token:
pip install 'laserfiche-mcp[oauth]'
LF_HTTP_OAUTH_ISSUER="https://login.microsoftonline.com/<tenant>/v2.0" \
LF_HTTP_PUBLIC_URL="https://lf.example.com/mcp" \
LF_HTTP_OAUTH_AUDIENCE="api://laserfiche-mcp" \
LF_HTTP_OAUTH_REQUIRED_SCOPES="laserfiche.read" \
laserfiche-mcp --http --host 0.0.0.0
The server then serves protected-resource metadata (RFC 9728), so claude.ai /
ChatGPT discover your authorization server, run the authorization_code + PKCE
flow, and present a bearer token that this server verifies (signature via JWKS,
plus aud / iss / exp / scopes). This is authentication at the edge —
verified requests still reach Laserfiche via the shared service account, so the
Laserfiche audit trail shows that account, not the end user. Full details,
including IdP registration and the security checklist, are in
docs/remote-http.md.
Connecting a web client
claude.ai and ChatGPT connectors need a public HTTPS URL. In practice that
means putting this server behind a reverse proxy (or a tunnel like cloudflared
/ ngrok for a spike) and adding the resulting https://…/mcp URL as a custom
connector in the client's settings.
WARNING
Read this before exposing --http to a network.
- Configure auth: OAuth (
LF_HTTP_OAUTH_ISSUER) for multi-user, or at least a
long random LF_HTTP_AUTH_TOKEN. Binding off-loopback with neither logs a
warning and leaves your repository reachable unauthenticated.
- Terminate TLS at a reverse proxy in front of this server (it speaks plain HTTP).
- Your Laserfiche server is self-hosted behind a firewall; a public connector
needs a deliberate network path in to it (VPN / DMZ / tunnel).
- See docs/remote-http.md for the full deployment and
security checklist.
Command line (no model, no tokens)
Everything the MCP tools do against the repository, the same binary does from
a shell — same code path, no LLM in the loop. Use it for the work that has one
correct answer: inventories, downloads, dedupe, grepping a contract.
laserfiche-mcp setup
laserfiche-mcp ls 1
laserfiche-mcp ls '\HR\Leases'
laserfiche-mcp get 4821 --to ./lease.pdf
laserfiche-mcp cat 4821
laserfiche-mcp cat 4821 --pages 4-9
laserfiche-mcp find 4821 'unpaid balance'
laserfiche-mcp search 'unpaid balance'
laserfiche-mcp manifest 1 --out inventory.csv
laserfiche-mcp dedupe 1
laserfiche-mcp diff 4821 4822
Office-friendly synonyms work everywhere: list, read (cat), download
(get), compare (diff), duplicates (dedupe). On Windows, quote paths
with double quotes: laserfiche-mcp list "\HR\Leases".
ENTRY and FOLDER accept a numeric entry ID or a repository path. Every
command takes --json, so the same invocation backs a shell pipeline:
laserfiche-mcp search 'termination' --json | jq -r '.results[].name'
laserfiche-mcp manifest 1 --json | jq '.by_extension'
laserfiche-mcp manifest 1 --out tree.jsonl --format jsonl && jq -r 'select(.extension=="pdf").name' tree.jsonl
Conventions that make these scriptable:
- Results go to stdout; progress and warnings go to stderr.
- Exit codes are meaningful:
0 success, 1 the operation failed or found
nothing, 2 bad usage. laserfiche-mcp find 4821 'indemnify' >/dev/null && echo present does what you would expect.
- Nothing here writes to the repository. The subcommands are read-only by
construction and never register the write tools.
What each command saves you
| Command | Instead of | Why it is cheaper |
|---|
get --to | a base64 blob in a tool result | Streamed to disk; the bytes never enter a context window, and never sit in RAM either |
cat / find | reading a whole document into the model | Extraction and matching happen locally; you get the passage, not the file |
search | opening each hit to see what it says | Laserfiche's own OCR index returns the matched passages |
manifest | one list_folder call per subfolder | One walk, one CSV, a summary you can read at a glance |
dedupe | downloading everything to compare | Sizes are probed first; only size collisions are ever downloaded |
diff | eyeballing two records side by side | A set comparison with one correct answer |
cat, find, and the MCP's mode="text" read these with no extra
dependencies: PDF, DOCX, PPTX, EML, HTML, RTF, and anything text/*
(including CSV, JSON, XML, Markdown).
Two more need the optional extra:
pip install 'laserfiche-mcp[office]'
Legacy binary .doc / .xls / .ppt are not supported — correct extraction
needs an external converter such as LibreOffice, and bundling that would break
the "pip install and it works" promise. Re-save as OOXML, or read Laserfiche's
own indexed text with search.
Scanned images have no text layer at all. cat says so explicitly rather than
returning an empty string, and points you at search, which reads the OCR
index where that text actually lives.
Tool names below are shown in their original verb-first form
(get_entry, set_fields, ...) for readability. In v2.0 every tool is
also registered under the laserfiche_{resource}_{verb} form
(laserfiche_entry_get, laserfiche_field_set, ...). Both names
resolve to the same function. The laserfiche_* names are the
recommended path; the old names remain as deprecation aliases through
v2.x and will be removed in v3.0. The authoritative mapping lives in
_V2_RENAME_MAP in src/laserfiche_mcp/server.py.
Reads (always registered)
| Tool | v2 name | Purpose |
|---|
search_entries | laserfiche_entry_search | Run a raw Laserfiche search query, e.g. {LF:Name="*.pdf"} |
search_by_name | laserfiche_entry_search_by_name | Convenience wrapper: name pattern + optional folder scope |
search_natural | laserfiche_entry_search_natural | Two-mode guided search: ask for grammar+templates, then run with auto-repair on 400 |
search_content | laserfiche_entry_search_content | Full-text search that returns the matched passages — page number plus excerpt, straight from the OCR index |
list_folder | laserfiche_folder_list | List children of a folder by ID |
get_entry | laserfiche_entry_get | Fetch metadata for one entry by ID |
get_entry_by_path | laserfiche_entry_get_by_path | Resolve a full path to an entry |
get_field_values | laserfiche_field_values_get | Read all template fields assigned to an entry |
get_document_text | laserfiche_document_get_text | Server-side extracted text (v2 only; v1 use get_document_edoc(mode="text")) |
get_document_edoc | laserfiche_document_get_edoc | Inspect edoc (info), download bytes (bytes), or extract text (text) |
list_repositories | laserfiche_repository_list | List repos for this account; falls back to the configured repo if endpoint disabled |
list_field_definitions | laserfiche_field_definition_list | Enumerate all field definitions; pass summary_only=true for a {count, names} shape |
list_tag_definitions | laserfiche_tag_definition_list | Enumerate tag definitions; supports summary_only |
list_template_definitions | laserfiche_template_definition_list | Enumerate template definitions; supports summary_only |
list_link_definitions | laserfiche_link_definition_list | Enumerate entry-link type definitions; supports summary_only |
get_template_fields | laserfiche_template_field_list | Atomic "what fields does this template need" lookup; pass required_only=true to filter to mandatory fields. Replaces the three-call chain (list_template_definitions → list_field_definitions → manual filter). |
get_audit_reasons | laserfiche_audit_reason_list | Audit reasons available to the authenticated user (for delete/export) |
get_task_status | laserfiche_task_get_status | Poll the status of an async operation (delete, copy) |
wait_for_task | laserfiche_task_wait | Block until an async operation reaches a terminal state |
Writes (registered only when LF_READ_ONLY=false)
| Tool | v2 name | Purpose | Two-step token? |
|---|
set_fields | laserfiche_field_set | OVERWRITE all field values on an entry (fields not in the body are deleted) | — |
merge_fields | laserfiche_field_merge | GET-then-PUT helper: update specific fields, preserve the rest | — |
set_tags | laserfiche_tag_set | OVERWRITE all tags on an entry | — |
merge_tags | laserfiche_tag_merge | Add/remove specific tags without touching others | — |
set_links | laserfiche_link_set | OVERWRITE all entry links | — |
assign_template | laserfiche_template_assign | Assign a template, optionally with initial field values (preflight-validated) | — |
remove_template | laserfiche_template_remove | Clear the template assignment | — |
create_folder | laserfiche_folder_create | Create a child folder under a parent | — |
import_document | laserfiche_document_import | Multipart upload from a local file path; capped by LF_IMPORT_MAX_BYTES | — |
copy_entry | laserfiche_entry_copy | Async copy via CopyAsync; returns an operation token to poll | — |
rename_entry | laserfiche_entry_rename | Rename an entry — preview shows old/new path, then re-call with the token | yes |
move_entry | laserfiche_entry_move | Move (optionally rename) — fence applies to both source AND destination paths | yes |
delete_entry | laserfiche_entry_delete | Delete an entry (folders cascade); preview shows child count + batch-cap status | yes |
delete_edoc | laserfiche_document_edoc_delete | Wipe the electronic-document content; entry + metadata remain | yes |
delete_pages | laserfiche_document_pages_delete | Delete specific page ranges; refuses empty page_range (would mean "delete all") | yes |
Tools with two-step token return a preview + HMAC-signed
confirmation_token on first call. Surface the preview to the user; on
go-ahead, re-call with the same arguments plus the token. Tokens are
bound to (operation, entry_id, entry_name) and the operation's own
parameters (page_range for delete_pages, new_name for
rename_entry, destination + name for move_entry) — executing with
different arguments than were previewed fails verification. They expire
after 5 minutes,
and are invalidated by server restart (unless LF_CONFIRMATION_SECRET
is set — see Configure).
Using search_natural
search_entries requires hand-written Laserfiche query syntax. If the
server rejects the query the only feedback the LLM gets is a generic HTTP
400 — there's nothing actionable to retry against. search_natural is the
LLM-friendly path:
- First call — pass the user's question and (optionally) a
folder_path to scope the answer; leave lf_query unset.
The tool samples up to ten entries from that folder, returns
the templates and field names it found, the Laserfiche search grammar
reference, and 2–3 candidate query strings the LLM can choose from or
refine.
- Second call — same
question, plus the chosen lf_query.
On HTTP 400, the tool tries up to two automatic repairs (escape
unescaped quotes inside values, then wildcard-wrap bare Name=
values if fuzzy=True) before returning a structured error with all
attempts visible so the LLM can author a fresh query.
The page-size cap for search_natural is the dedicated LF_MAX_PAGE_SIZE
env var (default 100) — some self-hosted SimpleSearches implementations
reject $top values above an internal limit, so this defaults lower than
the list/folder cap.
Using search_content
The other search tools answer which entries matched. search_content
answers what they say, by returning the matched passages themselves —
page number, surrounding excerpt, and the exact substring that matched —
pulled from Laserfiche's full-text index, which is where OCR output for
scanned documents lives.
search_content(query="unpaid balance", folder_path="\Leases")
→ { "results": [
{ "entry_id": 7, "name": "lease-4821.pdf", "hit_count": 6,
"hits": [ { "page": 4,
"text": "…tenant owes an unpaid balance of $2,400 as of March…",
"match": "unpaid balance" } ] } ] }
That answers most "what does this document say about X" questions without
downloading anything. Reach for get_document_edoc(mode="text") only when
an excerpt points you at the right document and you need more of it.
A bare phrase is wrapped into {LF:Basic~="..."} for you. Pass a query
starting with { to use raw syntax instead — e.g. option="D" to search
only OCR'd document text, or option="DFANLT" to permit leading and
trailing wildcards.
Two knobs control cost: hits_for_top (how many results get their
passages fetched — one extra request each, default 5) and hits_per_entry
(passages per result, default 3, capped by LF_SEARCH_CONTEXT_HITS_MAX).
This is the asynchronous /Searches flow rather than SimpleSearches,
which is what makes context hits available at all — they're keyed by a
search token that only the async flow produces. Laserfiche caps concurrent
searches per session (two, on v1), so the tool runs the whole
create→poll→read→close cycle inside one call and always releases the token,
including on timeout and failure. Older builds without the /Searches
endpoints get a structured async_search_unavailable error pointing at
search_entries as the fallback.
get_document_edoc modes
On v1 servers the Laserfiche Text export endpoint doesn't exist, so
get_document_text cannot return anything. get_document_edoc gained a
mode parameter as the workaround:
| Mode | Use it when |
|---|
info | You only need metadata (size, content-type). Default. |
bytes | You want the raw file as base64 — capped at LF_EDOC_MAX_BYTES (25 MB by default; override per-call with max_bytes). |
text | You want extracted text. PDF, DOCX, PPTX, XLSX, EML, HTML, RTF and text/* are handled (format detected from content-type + entry name — octet-stream PDFs work). OCR is not attempted; for scans use search_content, which reads the OCR index. |
All tool descriptions are written to read like prompts — they tell the
model when to use the tool, valid input shapes, and what kind of follow-up
is expected. See src/laserfiche_mcp/server.py.
Troubleshooting
Start with one command:
It authenticates, probes every endpoint your Laserfiche build exposes, and
prints an OK/unavailable table plus your write-mode and logging config.
Failures are classified — it will tell you whether the server was
unreachable (URL/VPN/TLS, not your password), whether the other
LF_API_VERSION would work (it probes both and names the right one), or
whether the credentials themselves were rejected.
No config yet, or config in doubt? Run the wizard:
It asks for the server URL, repository, and service account, saves them to
~/.laserfiche-mcp/.env (%USERPROFILE%\.laserfiche-mcp\.env on
Windows), and ends with a diagnose run. Every later CLI invocation finds
that file automatically when nothing else is configured.
Windows notes:
- In PowerShell/cmd, quote repository paths with double quotes:
laserfiche-mcp list "\HR\Leases". Avoid a trailing backslash before
the closing quote — it escapes the quote.
- Claude Desktop logs live at
%APPDATA%\Claude\logs\ (macOS:
~/Library/Logs/Claude/). Look for mcp-server-laserfiche.log.
Common misconfigurations:
| Symptom | Likely cause | Fix |
|---|
| diagnose says UNREACHABLE | Wrong LF_REPO_API_URL, VPN down, self-signed cert | Fix the URL; for internal certs set LF_VERIFY_SSL=false (dev only) |
| diagnose suggests the other version | LF_API_VERSION mismatch | Set the version it names |
| HTTP 401, or LF error 9528 ("LFDS unreachable") | Bad credentials — 9528's wording is misleading | Re-run laserfiche-mcp setup or fix LF_USERNAME/LF_PASSWORD |
| A fence/setting seems to have no effect | A typo'd LF_* variable name — Settings silently ignores unrecognized env vars | Check laserfiche-mcp diagnose's Config sanity: section (or the startup log), which names any LF_* var that matches no known setting |
Errors
Every tool returns a stable dict on failure instead of raising — so the
LLM gets actionable, structured data instead of Error executing tool ....
{
"mode": "error",
"operation": "laserfiche_entry_delete",
"kind": "not_found",
"error": "not_found",
"status_code": 404,
"server_error_code": null,
"server_message": null,
"reason": "Server returned 404 — the entry, path, or endpoint does not exist.",
"request_id": "9f2c…",
"upstream_trace_id": null,
"entry_id": 999
}
kind is one of five canonical ToolErrorKind values — LLMs branch on
this for category-level decisions (retry vs ask user vs abort):
| Kind | Meaning |
|---|
not_found | The named entry, path, or endpoint doesn't exist. Verify with the user. |
permission_denied | Credentials, ACLs, or local fence config refused the operation. |
rate_limited | The server told the caller to slow down. Back off and retry. |
invalid_input | The request is malformed or fails a local pre-flight. Fix and re-call. |
upstream_unavailable | LF returned 5xx, 405, or an opaque failure. Retry once, then surface. |
error is the more-specific subkind. Server-mapped subkinds:
| Subkind | Triggers |
|---|
auth_failed | HTTP 401/403, LF errorCode 9010, or LF 9528 ("LFDS unreachable" — usually creds too) |
required_field_missing | LF errorCode 9039/9066 |
not_found | HTTP 404 |
method_not_allowed | HTTP 405 — usually an MCP routing bug |
unsupported_media_type | HTTP 415 — usually a wire-format bug (missing Content-Type) |
rate_limited | HTTP 429 |
server_error | HTTP 5xx or unrecognized failure |
Tools also have pre-server mode: error shapes (path_not_allowed,
path_traversal_blocked, exceeds_batch_cap,
invalid_confirmation_token, missing_required_fields,
page_range_required, invalid_page_range, invalid_name,
invalid_field_name, invalid_tag_name, invalid_template_name,
invalid_link_type, file_not_found, size_exceeds_cap,
tool_not_allowed). list_repositories returns mode: fallback
instead of erroring when the server doesn't expose the endpoint — see
the docstring for the response shape.
See docs/error-contract.md for the full
taxonomy, per-tool triggers, and the kind ↔ subkind mapping.
Safety model
Wondering what Claude actually sees and where your document content goes?
See Data handling & privacy — it covers the data flow,
what leaves the machine, and how to scope a service account so sensitive folders
are never exposed. The rest of this section is about the write-mode guards.
Writes are off by default. When you enable them (LF_READ_ONLY=false),
the following guards are available — all independent, all opt-in
except as noted:
- Path-prefix fences (
LF_WRITE_PATHS_ALLOW, LF_WRITE_PATHS_DENY) — every write checks the entry's fullPath (or the parent's for creates) against the configured prefixes. Case-insensitive, deny wins over allow, both \ and / accepted. move_entry fences on BOTH source and destination paths so a token from an allowed source can't be replayed to land in a denied folder. Strongest single fence — recommended for any non-trivial deployment.
- Local import source fence (
LF_IMPORT_SOURCE_DIRS, default unset) — import_document reads file_path off the MCP process's own filesystem; with this set, the resolved (symlinks included) path must fall inside one of the configured directories or the tool refuses with source_path_not_allowed. This is the source-side counterpart to the path-prefix fences above, which only cover the repository destination.
- Tool-level allowlist (
LF_WRITE_TOOLS_ALLOWED) — restrict which write tools register at all. Example: merge_fields,merge_tags,assign_template for a metadata-only deployment that can't create or delete anything.
- Folder-delete batch cap (
LF_DELETE_FOLDER_MAX_DESCENDANTS, default 50) — delete_entry on a folder with more immediate children refuses unless force_large_delete=true is passed alongside the confirmation token. The preview surfaces exceeds_batch_cap: true so the LLM can explain the size before re-calling. If the child-count probe itself fails (transient error), the delete fails CLOSED — child_count_probe_failed: true on the preview, and execute refuses with child_count_probe_failed regardless of force_large_delete — rather than assuming an unknown count is safe.
- Audit-reason requirement (
LF_REQUIRE_AUDIT_REASON, default false) — when true, delete_entry refuses without an audit_reason_id. Use get_audit_reasons to enumerate valid IDs.
- Required-field validation (
LF_VALIDATE_REQUIRED_FIELDS, default true) — assign_template lists FieldDefinitions, finds isRequired: true fields, checks them against what's on the entry and what's in the caller's fields=, and returns a structured missing_required_fields error before the PUT — instead of the server's opaque Multistatus response. [9039].
- Two-step confirmation tokens (always on for destructive ops) —
rename_entry, move_entry, delete_entry, delete_edoc, delete_pages return a preview + HMAC-signed token on first call; execute on second call. Tokens bind to (operation, entry_id, entry_name) plus the operation's execute-relevant parameters (page_range, new_name, destination), so the execute leg cannot silently swap in different arguments than the user confirmed; they expire after 5 minutes. By default the signing key is random per-process, so a restart invalidates pending tokens; set LF_CONFIRMATION_SECRET to derive a stable key instead (tokens survive restarts and verify across instances sharing the secret — for multi-instance deployments).
Recommended starting config for write mode
"env": {
"LF_READ_ONLY": "false",
"LF_WRITE_PATHS_ALLOW": "\\Sandbox\\mcp-test",
"LF_WRITE_TOOLS_ALLOWED": "create_folder,import_document,merge_fields,merge_tags,assign_template,delete_entry",
"LF_DELETE_FOLDER_MAX_DESCENDANTS": "10",
"LF_REQUIRE_AUDIT_REASON": "false"
}
Pre-create the sandbox folder by hand in the Laserfiche web client; the
fence needs an existing parent to read its fullPath. Once
smoke-tested, broaden the tool list — path scope is still the strongest
fence regardless of which tools are registered.
Roadmap
- Server-side audit logging — sidecar file with rotation, capturing
every write tool call with the authenticated user, target entry, and
outcome.
- Cloud — Laserfiche Cloud support (
signin.laserfiche.com
JWT-signed client_credentials flow plus the api.laserfiche.com
v2-only endpoint surface).
- v3.0 — Remove the verb-first deprecation aliases (
get_entry,
set_fields, ...). Only the laserfiche_{resource}_{verb} names
remain.
- Stateless MCP (spec 2026-07-28) — the protocol core is now
stateless: the initialize handshake and session IDs are gone, and
cross-call state must live in server-minted handles passed as ordinary
tool arguments. This server is already shaped for that world — the
HMAC-signed
confirmation_token is exactly such a handle (set
LF_CONFIRMATION_SECRET so every instance can verify every instance's
tokens), and the async-search token never crosses a call boundary. The
remaining review item for a remote/multi-instance deployment is that
the per-process lifespan client and schema caches become per-instance.
The cacheable tools/list in the new spec also raises the value of a
small catalog (LF_LEGACY_TOOL_NAMES=false).
- Beyond — Workflow trigger tools, MCP resource links for edocs, and
per-viewer table summaries for spreadsheet entries.
Development
uv sync --extra dev
uv run pytest
uv run ruff check src tests
uv run mypy src
Tests use pytest-httpx to mock the Repository API and committed
fixture PDFs to exercise the text-extraction paths — they don't require a
real Laserfiche server.
Opt-in integration tests
LF_INTEGRATION_TEST=1 uv run pytest tests/test_integration.py
Reads the same LF_* env vars the server uses at runtime. Optional
overrides:
LF_INTEGRATION_FOLDER_PATH — folder used in the search_natural Mode A
test (defaults to repository root)
LF_INTEGRATION_PDF_ENTRY_ID — known PDF entry; if unset, edoc tests skip
LF_INTEGRATION_SAFE_QUERY — a query expected to return results on your
repo (defaults to {LF:Name="*"})
Use this before tagging a release if you have a reachable repository — it
catches issues that mocked HTTP can't surface (server-side query syntax
quirks, real PDF extraction, transport-level rejections).
Contributing
Issues and PRs welcome — particularly:
- Endpoint corrections for Repository API Server builds the v1 / v2 wire format hasn't been validated against
- Laserfiche Cloud client + JWT-signed
client_credentials assertion flow
- Server-side audit logging for write-mode deployments (sidecar file + rotation)
- Text extraction for more document formats (
ops/extract.py)
This is a community project, not affiliated with or endorsed by
Laserfiche.
License
Released under the MIT License. Copyright (c) 2026 Samuel S. Hernandez.