Get Supply Unlocks
GET/v1/cryptodata/supply/unlocks
The forward token-unlock calendar — dated vesting cliffs. Sourced from DefiLlama's free emissions data and sized against the coin's own float, so a cliff reads as "12% of circulating supply on 1 Sept" rather than a raw token count. **This is a cliff calendar, not an emissions feed.** Continuous emission is deliberately excluded: mining inflation, linear vesting, and runs of identical daily releases are a drip, not a step, and publishing them as catalysts buries the real ones. Coverage is bounded by the protocols DefiLlama tracks — absence here is not evidence that a token has no unlock. Free tier is limited to the next 7 days; Pro and above get the full horizon. Each coin lists its SOONEST cliff only. ``limit`` (added 2026-10-10; it used to be ignored) caps the rows; an unrecognised query parameter is a 400.
Price
$0.01/ callEdge cache
Off
Uptime 24h
100.00%
p95
347ms
Parameters
| Name | In | Type | Description |
|---|---|---|---|
| window_days | query | integer = 30 | Forward horizon |
| symbol | query | string | Filter to one ticker. A Hyperliquid k-name (kBONK) finds BONK. |
| limit | query | integer | At most this many rows, soonest first |
Code
# 1. No key, no payment: the gateway answers 402 with the price
curl -i "https://api.realtimeapi.ai/v1/cryptodata/supply/unlocks"
# 2. Pay: retry with a signed x402 payment (any x402 client builds this header)
curl "https://api.realtimeapi.ai/v1/cryptodata/supply/unlocks" -H "PAYMENT-SIGNATURE: $X402_PAYMENT"// npm i @x402/fetch @x402/core @x402/evm viem
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";
const client = x402Client.fromConfig({ schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(privateKeyToAccount(PRIVATE_KEY)) }] });
const pay = wrapFetchWithPayment(fetch, client);
const data = await (await pay("https://api.realtimeapi.ai/v1/cryptodata/supply/unlocks")).json();
console.log(data);# pip install x402 eth-account requests
from eth_account import Account
from x402.clients.requests import x402_requests
session = x402_requests(Account.from_key(PRIVATE_KEY))
print(session.get("https://api.realtimeapi.ai/v1/cryptodata/supply/unlocks").json())curl "https://api.realtimeapi.ai/v1/cryptodata/supply/unlocks" -H "X-API-Key: $RTAPI_KEY"Frequently asked questions
How do I get get supply unlocks from CryptoDataAPI?
Send GET https://api.realtimeapi.ai/v1/cryptodata/supply/unlocks. Pay $0.01 per request with x402, or send an X-API-Key header.
What does GET /supply/unlocks cost?
$0.01 per successful request in USDC on Base. Failed requests are never charged.
Can I call this endpoint from an MCP client?
Yes. Connect any MCP client to the RealtimeAPI server and use call_feed with this endpoint's URL, or get_quote to check the price first.