Developers
Public, read-only JSON API for Cardano market, wallet, NFT, explorer and staking data.
Building an AI agent? MCP server, Markdown views and limits for agents →
Quick start
- Anonymous requests work immediately but share a per-IP limit. For your own limits create an API key under Account.
- Send the key in the
x-api-keyheader. Every endpoint is a GET underhttps://realtap.app/api/v1. - Handle
429: wait for theRetry-Afterseconds. The daily quota is reported inX-Daily-Remaining.
export OPENTAP_KEY=otk_... curl -H "x-api-key: $OPENTAP_KEY" "https://realtap.app/api/v1/tokens?sort=volume24h&pageSize=5"
openapi.json (OpenAPI 3.1)Version 1.0.0: fields may be added to /v1, never removed or retyped.
Limits per plan
A key's limits follow the plan of the account that owns it: upgrade the account and its keys are raised within a minute, no new key needed. Plans are not switched on yet, so every key has the Free limits for now.
| Caller | Requests per minute | Requests per day |
|---|---|---|
| No key (per IP address) | 60 | no daily cap |
| API key, Free plan | 120 | 10,000 |
| API key, Plus plan | 300 | 50,000 |
| API key, Pro plan | 600 | 200,000 |
Every answer to a keyed request carries X-RateLimit-Limit, X-RateLimit-Remaining and X-Daily-Remaining.
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