generated: '2026-07-22'
method: searched
source: https://twelvedata.com/docs/llms/introduction.md
model: demo-key-and-trial-symbols
test_vs_live:
  notes: No separate sandbox host — the production API at https://api.twelvedata.com
    serves demo traffic via a published demo key and per-exchange trial symbols.
demo_key:
  value: demo
  usage: apikey=demo
  notes: Published demo API key for demo requests; a personal key is required for
    full access.
trial_symbols:
  url: https://twelvedata.com/exchanges
  notes: Premium endpoints and exchange data can be tested with the trial symbols
    listed per exchange on the exchanges page before upgrading. Mutual funds were
    added to the demo environment in the May 2026 update.
free_tier:
  plan: Basic
  credits: 800 API credits/day, 8 per minute
  signup: https://twelvedata.com/register
  notes: Free plan (no credit card) is the de-facto sandbox for development.