Turn a headline into a per-stock impact estimate.

Send a news text and a list of tickers. Get back a signed expected-impact estimate for each symbol, with the cascade path that explains it. One API call.

Simple usage pricing

Pay per call. No tiers, no seats.

Per API call$0.05

News text — first 200 tokensincluded

Each additional 200 tokens+$0.02

First 5 symbolsincluded

Each additional set of 5 symbols+$0.02

$2.00 / month minimum. Every active account is billed max($2, your monthly usage) — your usage counts toward the $2, so you only pay more once you cross it. Applies to both billing modes.

Token count uses a fixed public tokenizer (tiktoken o200k_base) and is returned with every response, so billing is fully transparent.

Estimate your cost

News length — ~120 tokens Symbols — 3

Per call

$0.05

Est. monthly bill

$2.00

0 calls/mo

Calls per month

Create an account

Email Password (min 8 chars) Billing mode

What you get

One API key, shown once at signup.
Prepaid wallet or postpaid monthly billing — your choice.
Transparent per-call cost breakdown on every response.
Use it directly, or via a ChatGPT Custom GPT / MCP server.

Quickstart

curl -X POST https://YOUR_HOST/v1/impact \
  -H "Authorization: Bearer sk_live_xxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{"news":"Oil prices surge after a supply cut","symbols":["XOM","DAL","AAPL"]}'

import requests
r = requests.post(
    "https://YOUR_HOST/v1/impact",
    headers={"Authorization": "Bearer sk_live_xxxxxxxx"},
    json={"news": "Oil prices surge after a supply cut",
          "symbols": ["XOM", "DAL", "AAPL"]},
)
print(r.json())

const r = await fetch("https://YOUR_HOST/v1/impact", {
  method: "POST",
  headers: { Authorization: "Bearer sk_live_xxxxxxxx",
             "Content-Type": "application/json" },
  body: JSON.stringify({ news: "Oil prices surge after a supply cut",
                         symbols: ["XOM", "DAL", "AAPL"] }),
});
console.log(await r.json());

Also available in ChatGPT

Custom GPT Action

Add our OpenAPI action to a Custom GPT and paste your API key. Ask it "how does this headline move TSLA, XOM, AAPL?" in plain English.

MCP server

Connect our MCP server in the ChatGPT App ecosystem to call assess_news_impact(news, symbols) as a native tool.