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Get Regime History

GET/v1/cryptodata/regimes/history

Committed long-horizon regime transitions over a window (Pro Plus). ``/regimes`` publishes only what is committed right now, so the sequence that produced it could not be reconstructed from this API at all. Each entry here is one committed run: which regime, the exact instant it committed, when the next one replaced it, and how long it held. **``committed_at`` is exact.** It comes from the ``in_regime_since`` stamped at commit time and carried in every archived sample — not from the ~25-min sample that first observed the change. And because every committed regime is now protected by a minimum-dwell floor of at least 2h, no transition can hide between two samples. **Coverage starts 2026-08-07 and cannot be backfilled.** The published regime is a stateful commit through the anti-churn dwell gate, not a pure function of the archived signals — replaying older inputs would produce a sequence that was never actually served. ``coverage_start`` reports the true start. Not to be confused with ``/quant/regimes/history``, which is the short-horizon 6-state HMM's hourly probability Parquet. This is the 10-state cycle model.

Price

$0.01/ call

Edge cache

300s

Uptime 24h

100.00%

p95

2.29s

Parameters

NameInTypeDescription
from query string Window start, inclusive (ISO-8601 or unix ms). Defaults to 30 days ago.
to query string Window end, EXCLUSIVE (ISO-8601 or unix ms). Defaults to now.
limit query integer = 5000 Max archive samples to scan (~57/day), not transitions returned.

Code

curl
# 1. No key, no payment: the gateway answers 402 with the price
curl -i "https://api.realtimeapi.ai/v1/cryptodata/regimes/history"

# 2. Pay: retry with a signed x402 payment (any x402 client builds this header)
curl "https://api.realtimeapi.ai/v1/cryptodata/regimes/history" -H "PAYMENT-SIGNATURE: $X402_PAYMENT"
TypeScript · @x402/fetch
// 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/regimes/history")).json();
console.log(data);
Python · x402
# 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/regimes/history").json())
With an API key
curl "https://api.realtimeapi.ai/v1/cryptodata/regimes/history" -H "X-API-Key: $RTAPI_KEY"

Frequently asked questions

How do I get get regime history from CryptoDataAPI?

Send GET https://api.realtimeapi.ai/v1/cryptodata/regimes/history. Pay $0.01 per request with x402, or send an X-API-Key header.

What does GET /regimes/history 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.

Get a free key

1,000 calls a month across every feed. Who is setting it up?

No key needed at all: agents can pay per call in USDC with x402.