Head to head · Exchange market data · October 2026 research run

Bithumb Open API vs Bybit

Bybit scores 57.3 (C) on agent readiness against Bithumb Open API's 50.6 (D), and leads in 4 of 7 scored categories. Both do exchange market data.

Best crypto exchange APIs and MCP servers for AI agents · All 210 exchanges comparisons

Which one, for what

Bithumb Open API D

Best for KRW-market trading for agents acting for a verified Korean account, with a vendor-built MCP server, CLI and skills.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

No sandbox or testnet; every order uses real funds

Bybit C

Best 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

  • Reliability, 45 against 34
  • Schema & documentation, 73 against 64
  • Payments & pricing, 40 against 15

Watch for

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

Why the edge

Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.

Payments & pricing Bybit +25

Bithumb Open API 15

No machine payment protocol (0). The fee page timed out on every attempt, so no price is recorded (0 of 20, unchecked). Public market data needs no key, card or account; trading needs a verified Korean account. Judgement call (15 of 20). A person must sign up, pass identity checks and issue keys in the browser (0). 0 + 0 + 15 + 0 = 15.

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.

Reliability Bybit +11

Bithumb Open API 34

Read with the hosted lines. No status page found on apidocs.bithumb.com or in llms.txt; wallet-status and notices endpoints stand in (0). No readable incident history, though two notices record a public WebSocket interruption and a brief service break (5). Rate limits documented per category with numbers, updated 27 October 2026 (15). A breach is described only as a temporary restriction, with no status code, header or Retry-After, and no client order id or idempotency key is documented; 422 order_not_ready and 500 server_error say to retry later (4 of 15). No SLA found (0). The API is generally available; the MCP server and CLI are at 0.8.5 (10). 0 + 5 + 15 + 4 + 0 + 10 = 34.

Bybit 45

Graded with the hosted lines on the V5 API at api.bybit.com. No status page found (status.bybit.com does not resolve, the docs link none), so 0 for the page and 5 for no readable history. Rate limits are published per endpoint and per UID with numbers, plus a 600 per 5 second IP limit (15). Every response carries X-Bapi-Limit, X-Bapi-Limit-Status and X-Bapi-Limit-Reset-Timestamp, retCode 10006 and HTTP 403 are documented with a wait rule, and orders take a unique orderLinkId that amend and cancel accept (15). No SLA (0). V5 is the current production API, not a beta (10). 45.

Schema & documentation Bybit +9

Bithumb Open API 64

No OpenAPI found; the reference is a readme.io site with Markdown twins, and the MCP tool schemas weren't read since the server's source isn't published (5 of 25). llms.txt on apidocs.bithumb.com (10). Reference pages state purpose and the skills say when to use each module and when not to (15 of 20). Typed parameters with enums for side, order type and time in force (10 of 15). Examples in several languages and an error-code page with names, statuses and meanings (12 of 15). Versions per endpoint (v1, v2, v2.1.5) and notices with effective dates (12 of 15). 5 + 10 + 15 + 10 + 12 + 12 = 64.

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.

Score by category

CategoryWeight this runBithumb Open APIBybitEdge
Reliability16%203445Bybit +11
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26473Bybit +9
Agent ergonomics13%16.26766Bithumb Open API +1
Security & auth14%17.56060even
Payments & pricing10%12.51540Bybit +25
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86966Bithumb Open API +3
Transparency & trust7%8.84751Bybit +4
Negative events≤1500
TotalD 50.6/100C 57.3/100

Facts side by side

FactBithumb Open APIBybit
KindHTTP APIHTTP API
VendorBithumb Co., Ltd.Bybit
Hosted endpointno (local only)no (local only)
Transportsstdiostdio
AuthAPI keyAPI key
PricingPay per usePay per use
x402nono
Tools exposed41398
Read-only variant documentedyesyes
llms.txtyesno
Last release2026-10-132026-10-30
Terms last updatedcouldn't be readcouldn't be read
Privacy policy last updatedno document linkedcouldn't be read
Customer content may train modelscouldn't be readcouldn't be read
Terms restrict automated accesscouldn't be readcouldn't be read
Terms restrict benchmarkingcouldn't be readcouldn't be read
Terms or service can change without noticecouldn't be readcouldn't be read
Arbitration or class-action waivercouldn't be readcouldn't be read
Popularity6 stars43 stars

Verdicts

Bithumb Open API

Bithumb runs an official local MCP server with 41 tools, module selection and a read-only flag, beside a CLI with per-profile read-only gating and six agent skills, over an API with scoped one-year keys and a mandatory IP list. There is no sandbox, no status page, no documented 429 behaviour, and the fees and terms couldn't be read.

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.

Before you call either

Bithumb Open API

  1. Ask for a key with asset and order inquiry plus order placement only, never withdrawals, with your IP registered; keys expire after one year and a wrong IP answers 401 NotAllowIP
  2. Start the server with --modules market,account,trade --read-only for analysis and drop --read-only only when the person asks to trade; deposit and withdraw modules stay off
  3. Prefer the bithumb CLI for writes, as the skills do, and check bithumb config show --json for a read-only profile before any order
  4. Keep the ticker's markets parameter at 200 or fewer, batch orders at 30 and cancels at 30 per request, and stay under 140 private calls a second per category
  5. Retry 422 order_not_ready and 500 server_error after a pause; there is no sandbox, so start with the smallest order the market allows

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

Questions

Which is better for AI agents, Bithumb Open API or Bybit?

Bybit scores 57.3 (C) on agent readiness against Bithumb Open API's 50.6 (D), and leads in 4 of 7 scored categories.

Do Bithumb Open API and Bybit need an API key?

Both need an API key.

Can an agent call Bithumb Open API and Bybit without installing anything?

Bithumb Open API runs on your own machine, with no hosted endpoint listed. Bybit runs on your own machine, with no hosted endpoint listed.

Other comparisons with Bithumb Open API or Bybit

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