UCE Test Suite API Docs →

Basics
Hello World Basic output and server time Headers HTTP response headers
Data Types & Parsing
DValue Dynamic hierarchical data tree JSON Parse and encode JSON data XML Structural XML encode/decode with DValue YAML Concise config files with DValue Preprocessor Comments Regression coverage for comment parsing in templates Regular Expressions PCRE2 matching, captures, replacement, and splitting String String operations Collection Helpers Map, filter, group, pick, and omit render data String Replace Search and replace in strings UTF-8 Unicode string handling RNG / Noise Random generation and noise time_parse() Date and time parsing
HTTP & Forms
Form POST URL-encoded form submission Multipart POST File upload and multipart forms URI URI encoding and decoding Cookies Read and write browser cookies Session Server-side session state
Storage & I/O
File I/O Read and write files
Advanced
unit_call() Dynamic file inclusion Components Reusable component system ONCE / INIT Unit lifecycle hooks for worker load and request entry Markdown Markdown parsing with components Script UCE script integration WebSockets Live WebSocket chat Unit Browser units_list(), unit_info(), unit_compile()

Restricted On Public Access

Local-only demos are hidden here because they can execute shell commands, access infrastructure services, mutate server state, compile units, or expose internal runtime details.
Request Parameters 
BASE_URL: /demo/
CONTENT_LENGTH: 
CONTENT_TYPE: 
DOCUMENT_ROOT: /Code/uce.openfu.com/uce/site
DOCUMENT_URI: /demo/index.uce
GATEWAY_INTERFACE: CGI/1.1
HTTP_ACCEPT: */*
HTTP_ACCEPT_ENCODING: gzip, br, zstd, deflate
HTTP_CONNECTION: close
HTTP_COOKIE: 
HTTP_HOST: uce.openfu.com
HTTP_USER_AGENT: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
HTTP_X_FORWARDED_FOR: 216.73.216.189
HTTP_X_FORWARDED_PROTO: https
HTTP_X_REAL_IP: 216.73.216.189
PATH_INFO: 
QUERY_STRING: 
REDIRECT_STATUS: 200
REMOTE_ADDR: 10.10.10.114
REMOTE_PORT: 33364
REMOTE_USER: 
REQUEST_METHOD: GET
REQUEST_SCHEME: http
REQUEST_URI: /demo/index.uce
ROUTE_PAGE: index
ROUTE_PATH: index
ROUTE_PATH_RAW: 
ROUTE_VALID: 1
SCRIPT_FILENAME: /Code/uce.openfu.com/uce/site/demo/index.uce
SCRIPT_NAME: /demo/index.uce
SCRIPT_URL: /demo/
SERVER_ADDR: 10.10.10.102
SERVER_NAME: 
SERVER_PORT: 80
SERVER_PROTOCOL: HTTP/1.1
SERVER_SOFTWARE: nginx/1.28.0
UCE_BIN_DIRECTORY: /tmp/uce/work
UCE_SERVE_HTTP: 
UCE_WS: