TickAtlas

ChatGPT Forex API — Custom GPT Actions Ready

Drop our OpenAPI schema into a ChatGPT Custom GPT under Actions. Authenticate with the X-API-Key header. Your GPT can now answer market questions with live data.

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Custom GPT · Action call
Forex Market Analyst GPT GPT-4o Is EURUSD overbought on the H1? Just now 🔧 ACTION · getIndicator tickatlas.com GET /v1/indicator ?symbol=EURUSD&indicator=RSI_14&timeframe=H1 200 OK · { "value": 74.8, "signal": "overbought" } Yes — EURUSD H1 RSI is 74.8, above the 70 overbought threshold. Momentum is stretched. Watch for a pullback toward EMA(20). Combined with bearish MACD divergence, this is a higher-confidence fade. Sources: 1 action call · 142ms
Action: getIndicator · 142ms Live Updated 2s ago

One Request. Instant Data.

REQUEST 
{
  "openapi": "3.1.0",
  "info": { "title": "TickAtlas", "version": "1.0.0" },
  "servers": [{ "url": "https://tickatlas.com" }],
  "paths": {
    "/v1/indicator": {
      "get": {
        "operationId": "getIndicator",
        "parameters": [
          { "name": "symbol", "in": "query", "required": true, "schema": { "type": "string" } },
          { "name": "indicator", "in": "query", "required": true, "schema": { "type": "string" } },
          { "name": "timeframe", "in": "query", "required": true, "schema": { "type": "string" } }
        ]
      }
    }
  }
}

Why Use TickAtlas?

Pre-Calculated, Sub-100ms

Indicator values are computed server-side on every new candle. Your app queries the result — no TA library, no candle history needed.

7 Timeframes

M1, M5, M15, M30, H1, H4, D1 — the same endpoint serves scalpers and position traders alike.

Forex, Crypto, Commodities

EURUSD, GBPUSD, XAUUSD, BTCUSD, USDJPY — data available for all symbols active on connected broker terminals.

Plug into any stack

  • ChatGPT Custom GPTs
  • Claude Tools
  • Python / pandas
  • Node.js
  • Discord bots
  • Slack webhooks
  • n8n
  • Zapier
  • Google Sheets

How Does a ChatGPT Custom Action Work?

ChatGPT Custom Actions let your GPT call external REST APIs during a conversation. You provide an OpenAPI schema that describes the TickAtlas endpoints, add your API key as an authentication header, and the GPT can then call those endpoints whenever a user asks a market question. It's a REST API integration — not a plugin. Our JSON responses are fully compatible with GPT-4o's tool-calling interface.

Set Up in 4 Steps

1

Sign Up & Get API Key

Create a TickAtlas account and get $2.50 in free credits. Copy your API key from the dashboard.

2

Create a Custom GPT

In ChatGPT, go to Explore → Create a GPT. Give your GPT a system prompt describing what it does — e.g., 'You are a Forex market analyst with access to live indicator data.'

3

Add a Custom Action

In the GPT editor, click 'Add Action'. Paste the TickAtlas OpenAPI schema (available in our docs). Under Authentication, select API Key and paste your TickAtlas key with header name X-API-Key.

4

Test & Publish

Ask your GPT 'What is the RSI on EURUSD H1?' — it will call the API and respond with live data. Test, refine the system prompt, and save your GPT.

OpenAPI Schema + Test Code

OpenAPI Schema Paste into Custom Action
Python Test before adding to GPT
GPT Response How the GPT processes the data

What Your Forex GPT Can Do

Answer Market Questions

"Is EURUSD overbought?" or "What's the MACD signal on Gold H4?" — your GPT fetches live data and answers in plain English with market context.

Multi-Symbol Scans

"Which major pairs have RSI below 30 right now?" — the GPT can query multiple symbols and timeframes sequentially, then summarise the results.

Trade Idea Generation

Fetch all 42 indicators via /v1/indicators, pass them to the GPT, and ask it to evaluate confluence, suggest entries, or explain current market structure.

Also works with

Claude Custom Tools Gemini Extensions LangChain Tools Python / requests Node.js fetch n8n HTTP Node Zapier Webhooks Google Sheets

Frequently Asked Questions

Is this a ChatGPT plugin?

No — this is a REST API integrated via ChatGPT Custom Actions (formerly called plugins). You add it to your Custom GPT via the 'Add Action' button in the GPT editor. It works with any GPT-4 or GPT-4o based Custom GPT.

Does ChatGPT have real-time internet access without this?

By default, ChatGPT does not have real-time market data access. Our Custom Action gives your GPT the ability to fetch live indicator values on demand during a conversation — filling that gap.

What authentication does the Custom Action use?

API Key authentication with the header name X-API-Key. In the Custom Action authentication settings, select 'API Key', enter your TickAtlas API key, and set the header name to X-API-Key.

Will this work with Claude or Gemini too?

Yes. The same REST API and API key work with Claude Custom Tools, Gemini Extensions, and any AI platform that supports HTTP tool calls. The OpenAPI schema and authentication method are identical.

Start Building in 5 Minutes

Sign up, grab your API key, make your first request.

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