VT Code Integration

AVELIN API is compatible with VT Code — Semantic coding agent in the terminal that understands code structure via AST.

VT Code is a semantic coding agent that lives in your terminal and understands your code at the structural level using Abstract Syntax Trees (AST). Its killer feature is AST-aware code understanding — instead of treating your codebase as plain text, VT Code parses the syntax tree to understand function relationships, type hierarchies, import chains, and scope. When you ask it to refactor a function, it knows every caller, every type dependency, and every import that needs updating.

Built for developers who work in the terminal and want an AI coding partner that understands code like a compiler does, not like a search-and-replace tool. VT Code's semantic awareness means fewer broken edits and more accurate multi-file refactors. Connect AVELIN's avelin-coding-pro model for 1M-token context that sees your entire codebase and ~100 tps throughput for tight edit loops.

Why AVELIN + VT Code? Access AVELIN's frontier coding models with 1M-token context windows, automatic failover, and ~100 tps throughput through a single OpenAI-compatible endpoint.

Quick Setup

Step 1: Get your AVELIN API key

Sign up at avelin.ai and generate an API key. It will look like sk-ave...xxxx.

Step 2: Install VT Code

Refer to VT Code documentation for installation instructions.

Step 3: Configure AVELIN

Set AVELIN as your LLM provider. Most tools support OpenAI-compatible endpoints via environment variables or config files:

export OPENAI_API_BASE=https://api.avelin.ai/v1
export OPENAI_API_KEY=sk-avelin-YOUR_KEY

Common config file pattern:

provider: openai
api_base: https://api.avelin.ai/v1
api_key: sk-ave...xxxx
model: avelin-coding-pro

Step 4: Select your model

Primary: avelin-coding-pro

Featureavelin-coding-proWhy it matters
Context window1M tokensFull codebase awareness without truncation
Max output65K tokensLarge multi-file diffs and refactors
Throughput~100 tokens/sec2x faster — tighter edit loops
ReasoningDeep step-by-stepUnderstands cross-file dependencies
Tool callingFirst-classReliable structured edits

Alternatives

ModelWhen to use
avelin-coding-fastLighter tasks, quick questions — lower cost
avelin-coding-ultraSystem design, architecture reviews
avelin-fastQuick lookups, simple fixes — lowest cost, fastest response
avelin-agentic-ultraComplex multi-step agent workflows

Why AVELIN for VT Code?

  • 1M context windows: Large codebases fit without aggressive exclusions
  • Prompt caching: ~80% reduction on repeated system prompts and repo-maps
  • Automatic failover: Coding sessions keep running if a provider is down
  • Model diversity: Multiple frontier models through one API

Troubleshooting

IssueSolution
"Model not found"Prefix model with openai/ if required
"API key invalid"Check key starts with sk-ave and base URL is https://api.avelin.ai/v1
Slow responsesTry avelin-fast for simpler tasks
Context overflowReduce context or switch to avelin-coding-pro (1M)