Dexto Integration

AVELIN API is compatible with Dexto — an open agent harness that ships a production-ready coding agent, CLI, and Web UI in a single package.

Dexto is designed for developers and teams who want a coding agent they can deploy today and extend tomorrow. Out of the box, you get a full-featured coding agent accessible via terminal CLI and a browser-based Web UI — no assembly required. Under the hood, Dexto's harness architecture is fully extensible: add custom tools, define new agent workflows, plug in specialized models for different task types. It's the difference between a toy demo and something your team can rely on in production. For organizations building internal AI coding workflows, Dexto provides the extensible foundation without the months of infrastructure work.

Why AVELIN + Dexto? 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 Dexto

Refer to Dexto 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 Dexto?

  • 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)