A CoinAPI alternative for perpetual futures, compared row by row.

1. Coverage is not dataset availability

An exchange in a catalogue does not mean every field exists for every instrument. A perpetuals application needs funding rate and interval, open interest, mark and index, book depth, liquidations, and history for each of them. Check those fields for your venues with both providers before counting exchanges. CoinAPI's breadth is real: 400+ exchanges by their count [1]. DEBYKO's 16 venues are chosen for perpetuals and documented layer by layer [8].

2. Two timestamps are not a freshness decision

CoinAPI records time_exchange and time_coinapi on trades and quotes [3]. That is enough to order events and to measure how far behind an ingestion was, with the usual caveats about clock sync and what the exchange's timestamp means.

DEBYKO carries the same two times and adds the decision. The horizon is one of measured, documented, assumed, venue_declared or connection.

{
  "status": "present",
  "venue_ts": "2026-10-09T18:51:34.754Z",
  "received_at": "2026-10-09T18:51:34.847Z",
  "age_ms": 505,
  "valid_until": "2026-10-09T19:01:34.754Z",
  "horizon_source": "connection",
  "values": {
    "funding": 0.000006648670833333,
    "funding_short": -0.000006648670833333,
    "funding_interval": "1h",
    "funding_8h": 0.000053189367,
    "funding_short_8h": -0.000053189367,
    "next_funding_at": "2026-10-09T19:00:00Z"
  }
}

This answer did not include that example. Nothing is shown in its place.

A monitor gets a value; the feed goes quiet; later it asks for the latest state. A timestamp-only answer still carries the old number and leaves the judgement to the caller. DEBYKO answers stale with the reason, and missing, not_published and off are distinct states, so an absent open-interest value is never a zero [8][10].

CoinAPI publishes timing; DEBYKO publishes a verdict. CoinAPI's documentation does not describe a per-value validity contract (as of 2026-10-09); that is a documentation boundary, not a claim about their data quality.

4. History

CoinAPI's archive — years of trades, quotes, books and OHLCV, 678 TB+ by their count, delivered by API or flat files [1][2] — is the deciding factor for research that needs 2021. DEBYKO's collection starts in September 2026 and cannot supply earlier periods.

What DEBYKO adds is state: at returns what was known at an instant with its status, interval a sampled range, raw the rows as received [8]. That is not tick-level book replay. Sealed daily on Base means stored rows are verifiable against a public root; it does not mean the exchange's original message was right [9].

5. MCP: tools, not the protocol

Both have MCP servers. CoinAPI's covers its catalogue: market data, exchange rates, indexes [5]. DEBYKO's covers its workflow: snapshots with status, screening across venues in DQL, history, and Agent rules that notify Telegram [8]. The question is which tools your agent needs, not whether MCP is there.

6. What stays yours

With CoinAPI: choosing symbols and protocols, handling errors, storing what you need, watching quotas, and your own freshness and risk policy. With DEBYKO: confirming layer coverage per venue, reading statuses correctly, handling withheld values, your own caching and risk policy, and a separate execution integration. DEBYKO does not place orders.

Decide in five questions

• Many market types, hundreds of exchanges, FIX? CoinAPI.
• A provider-defined verdict on whether a value is still usable? DEBYKO.
• History before September 2026? CoinAPI.
• Continuous high-volume streaming? Price CoinAPI's data tiers against DEBYKO's stream limits for your instruments.
• Cross-venue perpetual screening without writing the loop? DEBYKO.

Questions.

Explore DEBYKO.

Sources.

Compared on 2026-10-09 from published documentation.

CoinAPI

1 Market Data API: coverage, history volume, delivery — https://www.coinapi.io/products/market-data-api retrieved 2026-10-09

2 REST API reference and symbol convention — https://www.coinapi.io/products/market-data-api/docs/rest-api retrieved 2026-10-09

3 time_exchange and time_coinapi — https://www.coinapi.io/learn/glossary/time_exchange-vs-time_coinapi retrieved 2026-10-09

4 Pricing — https://www.coinapi.io/products/market-data-api/pricing retrieved 2026-10-09

5 MCP servers — https://docs.coinapi.io/general/mcp-servers retrieved 2026-10-09

6 WebSocket message schemas — https://www.coinapi.io/products/market-data-api/docs/websocket/messages retrieved 2026-10-09

DEBYKO

7 Plans and product — https://debyko.com/#pricing retrieved 2026-10-09

8 Statuses, API reference and DQL — https://docs.debyko.com/ retrieved 2026-10-09

9 Anchors — https://debyko.com/anchors/ retrieved 2026-10-09

10 A stale value answered as stale — https://debyko.com/stale-market-data retrieved 2026-10-09

Absence from the reviewed pages is not evidence that a feature does not exist. CoinAPI and DEBYKO are independent products. No endorsement or affiliation.