Llm Cost Estimate

LLM cost estimate API and token cost calculator for comparing inference cost across models before you run a prompt.

Overview

LLM cost estimate API and token cost calculator for comparing inference cost across models before you run a prompt. Send input_tokens and output_tokens (or raw text, auto-estimated at roughly 4 characters per token) plus a list of model names, and get a per-model price breakdown from a built-in snapshot price table, with the cheapest known model called out. Pass price_overrides to price your own negotiated rates or a model missing from the table instead of getting a guess. The table is stamped with an as_of date so you know how fresh the snapshot is. Use it as a token cost calculator, a model price compare tool, or a pre-flight budget check before an LLM run or agent workflow.

Endpoint

Method	Endpoint	Price	Description
POST	/v1/marketplace/api/llm-cost-estimate	$0.00575	Invoke Llm Cost Estimate (Llm) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i -X POST https://api.jarvisclaw.ai/v1/marketplace/api/llm-cost-estimate \
  -H 'Content-Type: application/json' \
  -d '{}'

# 2. Pay it (the SDK signs and retries for you)
curl -X POST https://api.jarvisclaw.ai/v1/marketplace/api/llm-cost-estimate \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <signed-payload>' \
  -d '{}'

Open in the marketplace