Truck stop diesel price API
To get a feed of truck stop diesel prices, use Flow Diesel Prices from ValveRide Flow. It is a REST API and an MCP server that return posted retail diesel prices at 7,500+ US truck stops, for one station or for the truck stops near any point, nearest first. Flow Diesel Prices is available today on ValveRide partner API keys. Talk to us to get a key.
What you get
Posted retail diesel prices, by station or near a point
Flow Diesel Prices answers one question: what does diesel cost at this truck stop, or at the truck stops around this point. It comes from the same price grid ValveRide Flow uses to plan fuel for trucking fleets.
One station
GET /api/v1/prices/station/{id}
The posted retail diesel price at a single truck stop, by its public station id.
Near a point
GET /api/v1/prices/near
The truck stops near a latitude and longitude, nearest first, each with its diesel price. Set the radius in miles and a result limit.
MCP tools
diesel_price_station, diesel_prices_near
The same two lookups as tools on the ValveRide Flow MCP server, for AI agents that speak the Model Context Protocol.
Response fields
| station_id | The public station id, used by the station endpoint. |
| brand, name, city, state | Which truck stop it is. |
| lat, lng | Where it is. |
| price | Posted retail diesel, in US dollars per gallon. |
| confidence | A score from 0 to 1 for how much weight to give the price. |
| estimated | True when no recent posted price exists for the stop. |
| observed_at | When the price was observed. |
Endpoints
REST and MCP, one data set
REST API
The base URL is https://app.valverideflow.com/api/v1. Send your partner key as a bearer token on every request.
curl -H "Authorization: Bearer YOUR_PARTNER_KEY" "https://app.valverideflow.com/api/v1/prices/near?lat=32.78&lng=-96.80&radius=25"The request and response details are in the Flow Diesel Prices API docs, and the machine readable spec is at https://valverideflow.com/diesel-prices-openapi.json.
MCP server
AI agents reach the same data through the ValveRide Flow MCP server at https://app.valverideflow.com/api/mcp, with the tools diesel_price_station and diesel_prices_near. These two tools are callable on ValveRide partner API keys. They are not available in Claude or ChatGPT, where ValveRide Flow offers the free diesel market snapshot and Flow Fuel Plans. See Flow by MCP for every way to connect.
Pricing
Three monthly tiers
Flow Diesel Prices is priced by the lookup, in monthly tiers. Flow Diesel Prices is available today on ValveRide partner API keys. Talk to us to choose a tier and get a key.
Flow Diesel Prices
| Tier | Monthly | Included |
|---|---|---|
| Starter | $29 | 10,000 lookups |
| Growth | $125 | 50,000 lookups |
| Partner | $440 | 200,000 lookups |
Need the fueling decision, not just the price?
Flow Fuel Plans returns a stop-by-stop diesel fuel plan for a truck route: which stops, and how many gallons at each. Monthly tiers are $99 / $349 / $799 for 200 / 1,000 / 3,000 plans.
See Flow Fuel Plans →Comparison
Flow Diesel Prices and HERE Fuel Prices
HERE publishes a general fuel prices API. Flow Diesel Prices is narrower on purpose: diesel, at truck stops, in the United States. We do not restate HERE coverage or pricing figures on this page. Read them at the source in the HERE Fuel Prices API documentation.
| Flow Diesel Prices | HERE Fuel Prices | |
|---|---|---|
| What it prices | Diesel at 7,500+ US truck stops, the places a Class 8 truck can fuel. | Fuel prices at fuel stations in an area you specify, filtered by fuel type, as HERE describes it in its public documentation. |
| How you call it | A REST API by station or near a point, and two MCP tools for AI agents. | An API from HERE. See the HERE documentation for the current endpoints. |
| Published pricing | Monthly tiers: Starter $29 for 10,000 lookups, Growth $125 for 50,000 lookups, Partner $440 for 200,000 lookups. | Not restated here. See HERE for its current pricing. |
| Built for | Trucking: the same price grid ValveRide Flow uses to plan fuel for fleets. | See the HERE documentation for the use cases it covers. |
Questions
Truck stop diesel price API, answered
How do I get a feed of truck stop diesel prices?
To get a feed of truck stop diesel prices, use Flow Diesel Prices from ValveRide Flow. It is a REST API and an MCP server that return posted retail diesel prices at 7,500+ US truck stops, for one station or for the truck stops near any point, nearest first. Flow Diesel Prices is available today on ValveRide partner API keys. Talk to us to get a key.
What does Flow Diesel Prices return?
Each result is one truck stop with its station id, brand, name, city, state, latitude and longitude, the posted retail diesel price in US dollars per gallon, a confidence score from 0 to 1, an estimated flag that is true when no recent posted price exists, and the time the price was observed.
How many truck stops does Flow Diesel Prices cover?
Flow Diesel Prices covers 7,500+ US truck stops, from the same price grid ValveRide Flow uses to build fuel plans for trucking fleets. Prices are refreshed multiple times per day.
How do I get access to Flow Diesel Prices?
Flow Diesel Prices is available today on ValveRide partner API keys. Contact ValveRide and we will set up a partner key for your app or agent. Per-stop price lookups are not available in Claude or ChatGPT.
What does Flow Diesel Prices cost?
Flow Diesel Prices has three monthly tiers: Starter $29 for 10,000 lookups, Growth $125 for 50,000 lookups, Partner $440 for 200,000 lookups. Talk to us to choose a tier and get a partner key.
Is there an MCP server for truck stop diesel prices?
Yes. The ValveRide Flow MCP server at https://app.valverideflow.com/api/mcp has two Flow Diesel Prices tools, diesel_price_station and diesel_prices_near. They are callable on ValveRide partner API keys and return the same data as the REST API.
What is the difference between Flow Diesel Prices and Flow Fuel Plans?
Flow Diesel Prices returns the price at a truck stop. Flow Fuel Plans returns a decision: which stops a truck should fuel at on a route and how many gallons to buy at each. Flow Fuel Plans tiers are Starter $99 for 200 plans, Growth $349 for 1,000 plans, Partner $799 for 3,000 plans.
Put truck stop diesel prices in your app
ValveRide Flow is a product of ValveRide, LLC.