whichmodel-mcp
Provides access to pricing, capability data, and model recommendations for OpenAI models (e.g., GPT-4.1), enabling agents to compare options, check price changes, and select cost-optimized models for specific tasks and budgets.
routewise-mcp
A model routing advisor for autonomous agents — get cost-optimised LLM recommendations via MCP.
whichmodel.dev tracks pricing and capabilities across 100+ LLM models, updated every 4 hours. This MCP server exposes that data so AI agents can pick the right model at the best price for every task.
MCP Endpoint
https://whichmodel.dev/mcpTransport: Streamable HTTP (MCP spec 2025-03-26)
Quick Start
Add to your MCP client config:
{
"mcpServers": {
"whichmodel": {
"url": "https://whichmodel.dev/mcp"
}
}
}No API key required. No installation needed.
Tools
recommend_model
Get a cost-optimised model recommendation for a specific task type, complexity, and budget.
Parameter | Type | Description |
| enum (required) |
|
|
| Task complexity (default: |
| number | Expected input size in tokens |
| number | Expected output size in tokens |
| number | Maximum spend in USD per call |
| object | Capability requirements: |
Returns: recommended model, alternative, budget option, cost estimate, and reasoning.
compare_models
Head-to-head comparison of 2–5 models with optional volume cost projections.
Parameter | Type | Description |
| string[] (required) | Model IDs, e.g. |
| enum | Context for comparison |
| object |
|
Returns: pricing, capabilities, quality tiers, and projected costs per model.
get_pricing
Raw pricing data lookup with filters by model, provider, price ceiling, and capabilities.
Parameter | Type | Description |
| string | Specific model ID |
| string | Filter by provider, e.g. |
| number | Max input price per million tokens (USD) |
| string[] | Required capabilities: |
| number | Minimum context window in tokens |
| number | Max results (1–100, default 20) |
check_price_changes
See what model pricing has changed since a given date.
Parameter | Type | Description |
| string (required) | ISO date, e.g. |
| string | Filter to a specific model |
| string | Filter to a specific provider |
Returns: price increases, decreases, new models, and deprecations.
Data Freshness
Pricing data is refreshed every 4 hours from OpenRouter. Each response includes a data_freshness timestamp so you know how current the data is.
Links
Website: whichmodel.dev
MCP endpoint: https://whichmodel.dev/mcp
Discovery: https://whichmodel.dev/.well-known/mcp.json
Latest Blog Posts
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