# Bybit vs KuCoin

> Bybit scores 57.3 (C) to KuCoin's 53.9 (D) for exchange market data. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/bybit-vs-kucoin
- Markdown: https://www.anchorterminal.com/compare/bybit-vs-kucoin.md (~3,900 tokens)
- Site index for agents: https://www.anchorterminal.com/llms.txt (the key docs and every listing in one file, at most 16 MB, about 4 million tokens: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- DNS: dig +short TXT <slug>.grade.anchorterminal.com (the grade as a DNS TXT record, for a sandbox with no HTTP where names still resolve; also top., best.<category>. and <a>.vs.<b>. under the zone, and the same under grade.letme.dev)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-11-04

Bybit scores 57.3 (C) on agent readiness against KuCoin's 53.9 (D), and leads in 4 of 7 scored categories. KuCoin leads on maintenance & community. Both do exchange market data.

- Bybit: grade C, 57.3/100, rank #712 of 1349. Markdown https://www.anchorterminal.com/tools/bybit.md · JSON https://www.anchorterminal.com/api/v1/tools/bybit.json
- KuCoin: grade D, 53.9/100, rank #824 of 1349. Markdown https://www.anchorterminal.com/tools/kucoin.md · JSON https://www.anchorterminal.com/api/v1/tools/kucoin.json
- Best crypto exchange APIs and MCP servers for AI agents: https://www.anchorterminal.com/best/crypto-exchanges/index.md
- All 210 exchanges comparisons: https://www.anchorterminal.com/compare/crypto-exchanges/index.md

## Which one, for what

### Bybit (C)

Good for: An agent trading spot, perpetuals, futures and options in a person's Bybit account outside the excluded jurisdictions, with a demo environment to rehearse on.

Ahead on:
- Schema & documentation, 73 against 60
- Security & auth, 60 against 55
- Payments & pricing, 40 against 35

Also in its favour:
- Runs on your own machine

Watch for: No status page, incident history or SLA was found; the terms say the API is not guaranteed to be available

### KuCoin (D)

Good for: An agent trading spot, margin and futures in a person's KuCoin account outside the restricted list, with no sandbox and no MCP server, so through the SDK or raw REST.

Ahead on:
- Maintenance & community, 73 against 66

Watch for: No official MCP server; the registry's `kucoin` entry is a third party's keyless market-data package


## Why the edge

### Schema & documentation: Bybit +13

- Bybit (73): No OpenAPI or other machine-readable contract for the REST API; the MCP server's 398 tools have zod schemas turned into JSON Schema, so the contract exists for the MCP surface only (12 of 25). No llms.txt; the docs are a public Docusaurus repository (bybit-exchange/docs) whose MDX source an agent can read (5 of 10). The MCP tool descriptions state purpose, rules and an agent hint per tool, and the API reference gives one page per endpoint (15 of 20). Parameters are typed with enums such as category and orderType and required flags (12 of 15). Request and response examples on each endpoint page and an error code page of about 750 codes with text (14 of 15). A dated changelog with 24 entries in the last 90 days, versioned V3 to V5 (15). 73.
- KuCoin (60): No OpenAPI or other machine-readable contract was found; the docs link a Postman workspace and the universal SDK is generated from an internal spec (8 of 25). No llms.txt; the skills hub ships Markdown SKILL.md files with endpoint tables for seven product areas, read-only (6 of 10). One docs page per endpoint with a description, permission and weight, but no when-to-use guidance (12 of 20). Typed parameter tables with enums for type and side and required flags (11 of 15). Request and response examples per endpoint and a unified six-digit error code scheme introduced with V2 (10 of 15). Dated changelog with V1 to V2 versioning (13 of 15). 60.

### Maintenance & community: KuCoin +7

- Bybit (66): Read as a hosted service with an open-source MCP server. The MCP package shipped 2.1.26 on 30 October 2026 and the V5 changelog's latest entry is 29 October (30). 31 npm versions since 16 April 2026, 11 of them in the last 90 days, and 24 changelog entries in the same window (20). The trading-mcp repository has 4 open issues and 18 forks; whether issues get answers was not checked, and the API has no public forum we could read (10 of 25). Not in the official MCP registry (0). The package has four dependencies, no install scripts, a publish workflow and no test workflow (6 of 10). 66.
- KuCoin (73): Read as a closed hosted service. The changelog's newest past entry is 2 November 2026 and the universal SDK was pushed 15 September (30). Nine dated changelog entries since 5 August 2026 (20). A Telegram API group (t.me/KuCoin_API) and api@kucoin.com for limit requests, no public issue tracker for the API; the SDK repository's issues were not checked (10 of 25). Official SDKs current in five languages, no MCP registry presence (13 of 15). No package health signal checked (0 of 10). 73.

### Security & auth: Bybit +5

- Bybit (60): API keys scoped by product group with a readOnly flag, a separate Withdraw value, IP binding, a 90-day expiry for unbound keys, HMAC or RSA signing, and revocation on the management page; no OAuth (24 of 30). A read-only key and a withdrawal-free key are first-class, but the MCP server has no read-only mode and relies on the client's approval prompt for writes (14 of 20). Tools return the exchange's own data, not third-party text (10). The API key info endpoint shows permissions, IPs and expiry, and an IP change log exists for institutional accounts, but no per-call audit log was found (7 of 15). No security.txt on bybit.com or the docs host, no disclosure policy or bug bounty found on a page we could read, proof-of-reserves articles in the help centre (5 of 20). 60.
- KuCoin (55): API key with a user-set passphrase, HMAC-SHA256 signing, nine permission groups, IP allow-lists required for Withdrawal and FlexTransfers, trading keys without an IP disabled after 30 days of inactivity, revocation on the management page; no OAuth and no expiry on General keys (24 of 30). A General-only key is a true read-only mode and withdrawals are a separate permission; no confirmation step for writes beyond the key scope (12 of 20). Tools return the exchange's own data (10). The API key info endpoint shows permissions and IP lists; no per-call audit log was found (5 of 15). No security.txt, no disclosure policy or bounty on a page we could read, a whistleblower notice on the legal page (4 of 20). 55.

### Payments & pricing: Bybit +5

- Bybit (40): No machine payment protocol (0). The fee schedule is public without login, with VIP 0 maker and taker rates per product and the tier criteria (20). Reading market data needs no key and the demo environment costs nothing, no card is asked for at sign-up (20). A person must register, pass identity verification and mint the key in a browser (0). 40.
- KuCoin (35): No machine payment protocol (0). The spot base fee is stated in support articles without login, the futures base rate and the full tier table sit in images or behind script (15 of 20). Market data needs no key, no card is asked for at sign-up (20). A person registers, verifies identity and mints the key in a browser (0). 35.

## Score by category

| Category | Weight | Bybit | KuCoin | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 45 | 45 | even |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 73 | 60 | Bybit +13 |
| Agent ergonomics | 13% (16.2 this run) | 66 | 62 | Bybit +4 |
| Security & auth | 14% (17.5 this run) | 60 | 55 | Bybit +5 |
| Payments & pricing | 10% (12.5 this run) | 40 | 35 | Bybit +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 66 | 73 | KuCoin +7 |
| Transparency & trust | 7% (8.8 this run) | 51 | 54 | KuCoin +3 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **57.3 · C** | **53.9 · D** | |

## Facts side by side

| Fact | Bybit | KuCoin |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Bybit | KuCoin |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | stdio |  |
| Auth | API key | API key |
| Pricing | Pay per use | Pay per use |
| x402 | no | no |
| Tools exposed | 398 | none |
| Read-only variant documented | yes | yes |
| llms.txt | no | no |
| Last release | 2026-10-30 | 2026-11-02 |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | couldn't be read | no date given |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | yes |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | yes |
| Arbitration or class-action waiver | couldn't be read | yes |
| Popularity | 43 stars | 55 stars |

## Verdicts

**Bybit.** Bybit publishes per-endpoint rate limits, a demo environment, scoped keys with a read-only flag and IP binding, and an official stdio MCP server whose 398 tools carry read-only and destructive annotations. There is no status page, no OpenAPI file, no SLA, the MCP server has no toolsets, and the global terms and privacy pages are drawn by script.

**KuCoin.** KuCoin publishes pooled rate limits with remaining and reset headers, scoped keys where withdrawals and transfers need an IP allow-list, an official SDK in five languages and read-only agent skills. It runs no MCP server, has no sandbox, status page or OpenAPI file, and its terms name no legal entity.

## Before you call either

### Bybit

1. Create a key with only the permission groups the task needs, set readOnly for research keys, leave Withdraw off and bind an IP, or the key expires after 90 days
2. Send a unique orderLinkId on every order and reuse it when amending or cancelling, since create-order is asynchronous and confirmed over WebSocket
3. Read X-Bapi-Limit-Status before bursts and wait until X-Bapi-Limit-Reset-Timestamp on retCode 10006; on HTTP 403 stop all sessions for at least 10 minutes
4. Test on api-demo.bybit.com with a demo key from the production account, not on testnet demo mode, which the docs call meaningless
5. Run the MCP server with BYBIT_TESTNET=true first, and only in a client that shows a per-call approval, because the server has no read-only mode of its own

### KuCoin

1. Mint a key with General only for research; add Spot or Futures only with an IP allow-list, since unbound trading keys are disabled after 30 days of inactivity
2. Send a UUID clientOid on every order and keep it for the retry, and read the order back by clientOid before placing again
3. Budget requests by weight against gw-ratelimit-remaining and sleep for gw-ratelimit-reset milliseconds on 429000; sub-accounts share the pool
4. There is no sandbox, so rehearse with the smallest order size on a dedicated sub-account
5. Use the UTA V2 endpoints and hosts; the Classic API loses endpoints without notice, as the margin credit endpoints did on 21 October 2026

## Questions

### Which is better for AI agents, Bybit or KuCoin?

Bybit scores 57.3 (C) on agent readiness against KuCoin's 53.9 (D), and leads in 4 of 7 scored categories. KuCoin leads on maintenance & community.

### Do Bybit and KuCoin need an API key?

Both need an API key.

### Can an agent call Bybit and KuCoin without installing anything?

Bybit runs on your own machine, with no hosted endpoint listed. No hosted endpoint is listed for KuCoin.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/bybit-vs-kucoin.json, and with the fewest tokens: https://www.anchorterminal.com/compare/bybit-vs-kucoin.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "bybit", "b": "kucoin"}`. From a terminal: `anchor compare bybit kucoin`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/bybit.json and https://www.anchorterminal.com/api/v1/tools/kucoin.json

## Other comparisons with Bybit or KuCoin

- [Bitfinex API vs Bybit](https://www.anchorterminal.com/compare/bitfinex-vs-bybit.md)
- [Bitfinex API vs KuCoin](https://www.anchorterminal.com/compare/bitfinex-vs-kucoin.md)
- [Bitget vs Bybit](https://www.anchorterminal.com/compare/bitget-vs-bybit.md)
- [Bitget vs KuCoin](https://www.anchorterminal.com/compare/bitget-vs-kucoin.md)
- [Bithumb Open API vs Bybit](https://www.anchorterminal.com/compare/bithumb-vs-bybit.md)
- [Bithumb Open API vs KuCoin](https://www.anchorterminal.com/compare/bithumb-vs-kucoin.md)
- [Bitstamp API vs Bybit](https://www.anchorterminal.com/compare/bitstamp-vs-bybit.md)
- [Bitstamp API vs KuCoin](https://www.anchorterminal.com/compare/bitstamp-vs-kucoin.md)
- [Bybit vs Coinbase Advanced Trade API](https://www.anchorterminal.com/compare/bybit-vs-coinbase-advanced-trade.md)
- [Bybit vs Coinbase MCP server (Coinbase for Agents)](https://www.anchorterminal.com/compare/bybit-vs-coinbase-mcp.md)
- [Bybit vs Crypto.com Exchange API](https://www.anchorterminal.com/compare/bybit-vs-crypto-com-exchange.md)
- [Bybit vs Deribit](https://www.anchorterminal.com/compare/bybit-vs-deribit.md)
- [Bybit vs dYdX](https://www.anchorterminal.com/compare/bybit-vs-dydx.md)
- [Bybit vs Gate](https://www.anchorterminal.com/compare/bybit-vs-gate-io.md)
- [Bybit vs Gemini Exchange API](https://www.anchorterminal.com/compare/bybit-vs-gemini-exchange.md)
- [Bybit vs HTX trading API](https://www.anchorterminal.com/compare/bybit-vs-htx.md)
- [Bybit vs Hyperliquid](https://www.anchorterminal.com/compare/bybit-vs-hyperliquid.md)
- [Bybit vs Kraken API](https://www.anchorterminal.com/compare/bybit-vs-kraken.md)
- [Bybit vs MEXC API](https://www.anchorterminal.com/compare/bybit-vs-mexc.md)
- [Bybit vs OKX API](https://www.anchorterminal.com/compare/bybit-vs-okx.md)
- [Bybit vs Uniswap Trading API](https://www.anchorterminal.com/compare/bybit-vs-uniswap.md)
- [Bybit vs Upbit Open API](https://www.anchorterminal.com/compare/bybit-vs-upbit.md)
- [Crypto.com Exchange API vs KuCoin](https://www.anchorterminal.com/compare/crypto-com-exchange-vs-kucoin.md)
- [Gate vs KuCoin](https://www.anchorterminal.com/compare/gate-io-vs-kucoin.md)
- [Gemini Exchange API vs KuCoin](https://www.anchorterminal.com/compare/gemini-exchange-vs-kucoin.md)
- [HTX trading API vs KuCoin](https://www.anchorterminal.com/compare/htx-vs-kucoin.md)
- [KuCoin vs MEXC API](https://www.anchorterminal.com/compare/kucoin-vs-mexc.md)
- [KuCoin vs OKX API](https://www.anchorterminal.com/compare/kucoin-vs-okx.md)
- [KuCoin vs Uniswap Trading API](https://www.anchorterminal.com/compare/kucoin-vs-uniswap.md)
- [KuCoin vs Upbit Open API](https://www.anchorterminal.com/compare/kucoin-vs-upbit.md)
- [Binance API vs Bybit](https://www.anchorterminal.com/compare/binance-vs-bybit.md)
- [Binance API vs KuCoin](https://www.anchorterminal.com/compare/binance-vs-kucoin.md)
- [Coinbase Advanced Trade API vs KuCoin](https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-kucoin.md)
- [Coinbase MCP server (Coinbase for Agents) vs KuCoin](https://www.anchorterminal.com/compare/coinbase-mcp-vs-kucoin.md)
- [Kraken API vs KuCoin](https://www.anchorterminal.com/compare/kraken-vs-kucoin.md)
- [Deribit vs KuCoin](https://www.anchorterminal.com/compare/deribit-vs-kucoin.md)
- [dYdX vs KuCoin](https://www.anchorterminal.com/compare/dydx-vs-kucoin.md)
- [Hyperliquid vs KuCoin](https://www.anchorterminal.com/compare/hyperliquid-vs-kucoin.md)

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp