# LLMTest

An OpenAI-compatible LLM proxy that routes your calls to 340+ models and adds per-feature cost tracking, automatic fallback to another model on errors or invalid JSON, model benchmarks with an AI judge, and optional weekly prompt and model optimization, plus an MCP server for your IDE.

- Category: Model APIs and gateways · by PixelGrid
- Website: https://llmtest.io/
- Live data: no
- Checked on the official pages: 2026-10-24

## API

- Official API: yes, docs https://llmtest.io/docs/quickstart
- Key needed: yes
- Price: Paid
- Base URL: https://llmtest.io/v1
- Formats: json

## Price and code

- Free tier: not stated (https://llmtest.io/)

## Data and license

- License: LLMTest Terms & Conditions (https://llmtest.io/terms); covers Use of the proxy, benchmarks and MCP server
- Commercial use OK
- Credit: not stated
- Embedding unclear
- Quote (api_official): "Already calling an LLM API? Just swap your base URL to https://llmtest.io/v1 — the proxy is compatible with any OpenAI-format SDK." (https://llmtest.io/docs/quickstart)
- Quote (api_key): "Sign up at llmtest.io/signup , add $5 in credits, and copy your API key from the dashboard. It starts with llmt_ ." (https://llmtest.io/docs/quickstart)
- Quote (api_price): "Pay as you go Get charged only 10% on top of the model's base cost. No monthly fee. No commitment." (https://llmtest.io/)
- Quote (credits): "Add credits: $5, $10, $25, $50, or $200. Credits never expire." (https://llmtest.io/)
- Quote (commercial): "LLMTest provides an AI model proxy, benchmarking tools, and an MCP server that help developers optimise AI model usage." (https://llmtest.io/terms)
- Quote (resale): "Resell access to the proxy without written permission." (https://llmtest.io/terms)
- Quote (data_ownership): "You retain ownership of any data you send through the proxy." (https://llmtest.io/terms)
- Quote (mcp): "The MCP server is published as llmtest-mcp on npm." (https://llmtest.io/docs/mcp-setup)
- Quote (maker): "These terms govern your use of LLMTest, operated by PixelGrid." (https://llmtest.io/terms)

## Rules for an agent

- Point any OpenAI SDK at base URL https://llmtest.io/v1 with an llmt_ API key; for IDE agents run 'npx -y llmtest-mcp' with LLMTEST_API_KEY set. Fallbacks show up in the x-llmtest-fallback-model response header.
- Do not resell access to the proxy without written permission
- Follow the terms of the underlying model providers
- Calls are rejected when the prepaid credit balance reaches zero

## Agent access

- llms.txt: https://llmtest.io/llms.txt
- MCP: npm llmtest-mcp

Human page: https://agentgid.com/resources/llmtest/
Source: AgentGid (agentgid.com). Facts are quoted from the site's own pages; check the license page before you ship.