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Narev maintains the most carefully maintained, real-time LLM pricing. You can use it to:
  • deploy your own AI gateway
  • bill your users per token, request, or usage
  • run AI cost observability platforms

Problems Narev solves

LLM prices change hourly now. Unless you scrape them in real time, you’re behind.Narev keeps a live price catalog you can trust and bill against.
Token counts alone don’t tell you cost per request.Either send us a request with token counts to /calculate or pull our data to your pricing map.
Lago, OpenMeter, Stripe, Polar don’t maintain LLM pricing.Narev has the most carefully maintained real-time LLM pricing and a set of tools to help you send dollar usage.
You need a price map you own, not whatever estimate another gateway baked in.Set custom prices in Narev Cloud and push those rates into your gateway and tooling.
Token counts alone don’t tell you cost per request.ai-billing middleware resolves cost on the generation and can show usage in the UI.

Getting started

Bare metal

REST API

GET providers, models, and prices. POST cost calculation. No SDK required.

MCP

Wire an agent to https://mcp.narev.ai for live prices and docs.

GitHub App

If LLM prices live as constants in a repo, the app opens PRs when rates change.

TypeScript

Vercel AI SDK

Wrap generateText / streamText with @ai-billing/* middleware and send usage to Polar or Stripe.

SDK

Provider middleware, price resolvers, and billing destinations in @ai-billing/core.

Building something bigger?

When the public API isn’t enough, Narev ships the catalog into your pipelines.

WebSockets

Stream price updates as rates change. Keep gateways and caches hot without polling.

S3

Land full catalog dumps in object storage for your own loaders and lakes.

Working with a data warehouse?

Fivetran

Managed ELT. Sync the Narev price catalog into Snowflake, BigQuery, or Redshift on a schedule.

Airbyte

Open-source or Cloud ELT. Pull catalog rows into the warehouse you already run.

Meltano

Singer-based pipelines. Version the extract and load of Narev prices in git with your other jobs.