Sports odds API without a credit card

Getting a working sports odds API key with only an email address: what the card-free tiers actually include.

More detail

Card-free matters for more than convenience. Hackathon projects, student work, agent experiments, and internal prototypes often cannot put a company card into a third-party service, and a card-on-file free trial that silently converts is a different product from a free tier.

The ParlayAPI free key is a full API key, not a sandbox: it hits the same endpoints, the same live collector data, and the same response shapes as paid tiers, with a 1,000 credit monthly allowance, a 48 hour historical window, and a 60 requests per second rate limit. When a project outgrows it, upgrading is a plan change on the same key.

Sign up at parlay-api.com/signup and the key works immediately. There is no approval queue and no sales call.

Endpoint

GET /v1/sports/{sport_key}/odds

curl 'https://parlay-api.com/v1/sports/baseball_mlb/odds?regions=us&markets=h2h' -H 'X-API-Key: YOUR_FREE_KEY'

Why developers use it

• Email-only signup with instant key issuance
• 1,000 credits per month on the free tier
• Same endpoints and data as paid tiers

FAQ

What can I actually build on the free tier?

Live odds and props polling for development, a small line-shopping tool, or an agent prototype. The 48 hour historical window supports recent-data testing; deep backtests need a paid tier's longer window.

Does the free tier expire?

No. It is a monthly allowance that refreshes, not a time-limited trial, and no card is on file to auto-convert.

What happens when I run out of credits?

Requests return a clear quota error until the monthly reset, or you upgrade on /pricing. Nothing is charged, because no payment method exists on a free account.

Related

/signup/pricing/answers/the-odds-api-free-tier/answers/cheapest-sports-odds-api