API Reference

Version, ABI, module queries

Structured error objects and cause chains

Error formatting output

Heap-allocation chokepoint and allocator replacement

Allocation fault injection and leak detection

Process-level memory statistics

Zero-allocation arena scratch memory

The full string toolkit

Regex (compile, match, replace, sets)

Structured pattern matching ({name} captures)

Charsets and Unicode conversion

Number parsing and formatting

HTML entity encode/decode

Typed templates

Hex / Base64 / Percent codecs

Deflate / Inflate compression

Math utilities

Hash functions

PCG32 and cryptographically secure randomness

Distributed unique identifiers

Dynamic arrays and pointer arrays

Doubly linked lists

Segmented buffers

Stable-index slot maps

AVL balanced trees

Hash maps and integer maps

Hash sets and set operations

The five-piece stack family

SPSC/MPSC/MPMC lock-free queues

Object pools and variable-size memory pools

xvalue dynamic values and COW containers

JSON parsing and serialization

The XLang Object Notation

JSON Lines reading and writing

XLON Lines reading and writing

Atomic operations

Spinlocks

Mutex/cond/semaphore/rwlock/events

Threads and TLS

Waiting primitives

Cooperative cancellation

Stackful coroutines and schedulers

Go-style channels and Select

Future / Promise and combinators

Future bridges

Executor abstraction

Task pools and task groups

Cross-platform signal handling

File read/write, mapping, locking, atomic writes

Virtual file system

Asynchronous file I/O

Path parsing and manipulation

Reader / Writer abstractions

Console output

Environment variables

Process creation and management

Logging system

Time and time zones

ASN.1 / DER encode/decode

AES-GCM, ChaCha20, SHA, Ed25519, RSA

PEM encode/decode

Certificate parsing, path validation, CRL

In-house TLS 1.2/1.3 protocol stack

TLS client configuration

TLS server configuration

TLS session management

TLS stream layer

Session resumption

TLS identities

TLS verification

Addresses, engine, workers, buffer pools, ports

TCP streams

TCP servers

UDP datagrams

Network file transfer

Framing layer

Network interface queries

Proxy configuration

Network tasks

HTTP semantic primitives

HTTP/1.1 parsing and encoding

HTTP/1.1 network binding

HTTP/1.1 TLS binding

HTTP connection management

HTTP decoders

HTTP encoding

Expect header

Transfer-Encoding

HTTP trailers

HTTP upgrade

WebSocket frame protocol

WebSocket streams

WebSocket upgrade

HTTP clients and servers

SSH2 protocol primitives and client runtime

ACME certificate issuance and management. Five cloud DNS providers, EAB, propagation confirmation, and one-call Obtain.

JWT/JWS signing and verification. HS/RS/ES families and JWKS key sets with kid-based selection.

OAuth2 client and OIDC application composition. Auth code, PKCE, token refresh and introspection.

Single model calls, streaming and provider adapters. OpenAI-compatible/Anthropic/Responses dialects, transport retry and usage stats.

Session ledger, budgets, compaction and persistence. Context budgets, turn windows and JSONL archival.

Agent loop, tool execution and approval. Bounded tool loop, sub-agent delegation and the unified task system.

Dynamic types and object system

SMTP/IMAP/POP3 mail protocols

WebSocket runtime