{
  "data": {
    "a": {
      "slug": "htx",
      "name": "HTX trading API",
      "vendor": "HTX",
      "vendorUrl": "https://www.htx.com",
      "kind": "http-api",
      "category": "crypto-exchanges",
      "summary": "HTX, the exchange formerly Huobi, runs REST and WebSocket APIs for spot and derivatives trading, balances, transfers and withdrawals, authenticated with HMAC-signed API keys that carry read, trade and withdraw permissions.",
      "url": "https://www.anchorterminal.com/tools/htx",
      "markdownUrl": "https://www.anchorterminal.com/tools/htx.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/htx.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/htx.json",
      "dns": "htx.grade.anchorterminal.com",
      "repo": "https://github.com/HuobiRDCenter",
      "transports": [],
      "packages": [],
      "auth": "api-key",
      "authNotes": "API keys made in the account's API Management page after a browser sign-up and identity check. Requests are signed with HMAC SHA256 (SignatureVersion 2) over the query string, with AccessKeyId, Timestamp and the Signature sent as query parameters; the secret never travels. A main account key carries Read, Trade and Withdraw permissions, a sub-user key Read and Trade only. A key can be bound to up to 20 IP addresses, and the docs say a key without IP binding expires after 90 days (https://huobiapi.github.io/docs/spot/v1/en/, checked 2026-11-03).",
      "pricing": "usage",
      "pricingNotes": "Trading fees per order. The fee schedule at htx.com/fee is drawn by script and answered our reader with no text, so no rate is recorded; third-party guides give 0.2 per cent maker and taker at the base tier, which is a lead and not a source. Public market data needs no key and no account (https://www.htx.com/fee/, checked 2026-11-03).",
      "priceSummary": "Pay per use",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the API docs or on the pages that loaded (checked 2026-11-03). Trading fees are taken from each fill.",
        "endpoints": []
      },
      "toolCount": 0,
      "popularity": {
        "githubStars": 684,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-11-03"
      },
      "docsUrl": "https://huobiapi.github.io/docs/spot/v1/en/",
      "capabilities": [
        "exchange.market-data",
        "exchange.spot-trading",
        "exchange.derivatives",
        "exchange.balances",
        "exchange.transfers",
        "market.crypto"
      ],
      "tags": [
        "hosted",
        "api-key",
        "closed-source",
        "usage-priced",
        "python",
        "java",
        "go",
        "no-status-page"
      ],
      "lastRelease": "2026-10-21",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 43.3,
        "grade": "E",
        "agentReady": false,
        "rank": 1166,
        "ranked": true,
        "rankOf": 1349,
        "categoryRank": 21,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 69,
          "maintenance": 57,
          "payments": 15,
          "reliability": 38,
          "schema": 40,
          "security": 51,
          "transparency": 25
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "low",
          "date": "2026-11-03"
        },
        "negative": 0,
        "verdict": "HTX's API has per-endpoint rate limits, read, trade and withdraw key permissions with IP binding, and SDKs in five languages. No official MCP server exists, the testnet is closed, the public reference is still Huobi's with a 2022 changelog, and the fee schedule, terms and restricted countries are on script-drawn pages we couldn't read.",
        "bestFor": "Spot and USDT-margined derivatives for agents that can hold an HTX key, with no MCP server and no testnet.",
        "strengths": [
          "Key permissions split into Read, Trade and Withdraw, sub-user keys without Withdraw, and up to 20 bound IP addresses per key",
          "Rate limits published per endpoint with numbers, and remaining-quota headers on every response",
          "A client-order-id unique within 8 hours on orders and idempotent on withdrawals, so a retry doesn't double an order",
          "Official SDKs in Python, Java, C++, C# and Go, the contract ones pushed on 21 October 2026"
        ],
        "weaknesses": [
          "No official MCP server; the only one in the MCP registry is a third party's read-only ticker server",
          "The testnet is shut down, so order logic can only be tried with real funds",
          "The public API reference is still branded Huobi with a last changelog entry of June 2022, and HTX's newer docs are drawn by script",
          "No status page, no SLA and no documented 429 or Retry-After behaviour",
          "The fee schedule, user agreement, privacy policy and restricted-country list couldn't be read, so none is recorded first-hand"
        ],
        "agentNotes": [
          "Ask the operator for a key with Read and Trade only and bound to your IP addresses; a key without IP binding expires after 90 days",
          "Send a fresh client-order-id of up to 64 characters with every order and reuse it only on retry; a repeat within 8 hours answers invalid.client.order.id",
          "Watch X-HB-RateLimit-Requests-Remain and pace at under 100 order calls per 2 seconds per UID; limits are shared by every key on the account",
          "There is no testnet; try order logic with the smallest size the market allows",
          "Confirm the person's country is served before trading; the restricted list in the user agreement couldn't be read here"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "low",
            "grade": "E",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 43.3
          }
        ],
        "editorialScores": {
          "ergonomics": 69,
          "maintenance": 57,
          "payments": 15,
          "reliability": 38,
          "schema": 40,
          "security": 51,
          "transparency": 15
        },
        "provenanceScore": 34,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-03",
            "maintenance": "2026-11-03",
            "payments": "2026-11-03",
            "reliability": "2026-11-03",
            "schema": "2026-11-03",
            "security": "2026-11-03",
            "transparency": "2026-11-03"
          },
          "last": "2026-11-03",
          "oldest": "2026-11-03",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "http": "curl https://api.huobi.pro/market/tickers"
      },
      "letme": {
        "capability": "https://letme.dev/exchange.market-data",
        "tool": "https://letme.dev/htx"
      },
      "area": "payments",
      "provenance": {
        "legalEntity": "",
        "domain": "htx.com",
        "domainRegistered": "1995-12-13",
        "endpointOnVendorDomain": false,
        "terms": "https://www.htx.com/en-in/support/360000298561/",
        "privacy": "",
        "statusPage": "",
        "changelog": "https://huobiapi.github.io/docs/spot/v1/en/",
        "securityTxt": "none",
        "checked": "2026-11-03",
        "notes": [
          "The legal entity is unread. The HTX Platform User Agreement and every other page on www.htx.com answered our reader with no text on 3 November 2026 (the pages are drawn by script), so the terms, privacy policy, fee schedule and about page were not read. Terms URL recorded from a search result's title.",
          "RDAP gives htx.com a registration date of 13 December 1995, long before the exchange took the name in 2023; the domain was acquired, not registered, by the exchange.",
          "The API endpoint api.huobi.pro is on the old huobi.pro domain, not htx.com.",
          "www.htx.com/robots.txt allows / and disallows account paths (finance/account, user-center/security and the like). www.huobi.com/robots.txt disallows everything and was not read further. huobiapi.github.io has no robots.txt.",
          "https://www.htx.com/.well-known/security.txt answered no text; recorded as none. status.htx.com does not resolve."
        ],
        "score": 34
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/htx.json",
      "live": {
        "slug": "htx",
        "securityTxt": {
          "url": "https://htx.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-11-04T15:54:20.226147452Z"
        },
        "updatedAt": "2026-11-04T15:54:20.226147452Z"
      }
    },
    "answer": "KuCoin scores 53.9 (D) on agent readiness against HTX trading API's 43.3 (E), and leads in 6 of 7 scored categories. HTX trading API leads on agent ergonomics.",
    "b": {
      "slug": "kucoin",
      "name": "KuCoin",
      "vendor": "KuCoin",
      "vendorUrl": "https://www.kucoin.com",
      "kind": "http-api",
      "category": "crypto-exchanges",
      "summary": "KuCoin is a centralised crypto exchange for spot, margin and futures trading and earn products, reached through its REST and WebSocket API with a unified trading account, an official multi-language SDK and read-only agent skills. It runs no MCP server.",
      "url": "https://www.anchorterminal.com/tools/kucoin",
      "markdownUrl": "https://www.anchorterminal.com/tools/kucoin.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/kucoin.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/kucoin.json",
      "dns": "kucoin.grade.anchorterminal.com",
      "repo": "https://github.com/Kucoin/kucoin-universal-sdk",
      "transports": [],
      "packages": [],
      "auth": "api-key",
      "authNotes": "API key, secret and user-set passphrase minted under API Management after a browser sign-up and identity verification, with KC-API-KEY, KC-API-SIGN (HMAC-SHA256 over timestamp, method, path and body, Base64), KC-API-TIMESTAMP, KC-API-PASSPHRASE (the passphrase signed with the secret) and KC-API-KEY-VERSION headers. Permissions are General (read-only), Spot, Margin, Futures, Earn, Withdrawal, FlexTransfers, LeadtradeFutures and Unified; Withdrawal and FlexTransfers need an IP allow-list, and a key with trading permissions and no IP bound has trading disabled or is deleted after 30 days of inactivity. General-only keys do not expire (https://www.kucoin.com/docs-new/authentication, https://www.kucoin.com/docs-new/ and https://www.kucoin.com/support/360015102174, checked 2026-11-03).",
      "pricing": "usage",
      "pricingNotes": "The API costs nothing; trades carry KuCoin's fees. Spot fee levels are set against a base of 0.1 per cent maker and 0.1 per cent taker at LV0, with some pairs priced differently and a 20 per cent discount when fees are paid in KCS. The futures LV0 rate (0.02 per cent maker and 0.06 per cent taker per a KuCoin blog post) sits in an image on the support page and was not read first-hand. The fee page itself loads its table by script (https://www.kucoin.com/support/360015188494 and https://www.kucoin.com/en-eu/support/360015207133, checked 2026-11-03).",
      "priceSummary": "0.1% fee",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the API docs, the skills hub or the fee pages (checked 2026-11-03).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 55,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-11-03"
      },
      "docsUrl": "https://www.kucoin.com/docs-new/",
      "capabilities": [
        "exchange.market-data",
        "exchange.spot-trading",
        "exchange.derivatives",
        "exchange.balances",
        "exchange.transfers",
        "exchange.staking",
        "market.crypto"
      ],
      "tags": [
        "hosted",
        "closed-source",
        "api-key",
        "usage-priced",
        "no-status-page",
        "agent-skills",
        "python",
        "typescript",
        "go",
        "java",
        "php"
      ],
      "lastRelease": "2026-11-02",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 53.9,
        "grade": "D",
        "agentReady": false,
        "rank": 891,
        "ranked": true,
        "rankOf": 1349,
        "categoryRank": 16,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 62,
          "maintenance": 73,
          "payments": 35,
          "reliability": 45,
          "schema": 60,
          "security": 55,
          "transparency": 54
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-11-03"
        },
        "negative": 0,
        "verdict": "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.",
        "bestFor": "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.",
        "strengths": [
          "Rate limits published per VIP level with per-endpoint weights and gw-ratelimit-limit, gw-ratelimit-remaining and gw-ratelimit-reset headers, 429000 on breach",
          "API key permissions split into General, Spot, Margin, Futures, Earn, Withdrawal, FlexTransfers and Unified, with Withdrawal and FlexTransfers requiring an IP allow-list",
          "Official kucoin-universal-sdk for Go, Python, Node.js, PHP and Java, MIT, pushed September 2026",
          "Unified Trading Account API V2 with a dated changelog and unified six-digit error codes",
          "Seven read-only agent skills in a KuCoin-published repository, installable with the skills CLI"
        ],
        "weaknesses": [
          "No official MCP server; the registry's `kucoin` entry is a third party's keyless market-data package",
          "No sandbox or testnet; the legacy sandbox is offline and the docs point to mocking",
          "No status page, incident history or SLA found",
          "No OpenAPI file or llms.txt; the SDK page links a Postman workspace instead",
          "Terms name no company and fix the Turks and Caicos Islands as the deemed place of every transaction; the privacy policy names only KuCoin"
        ],
        "agentNotes": [
          "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",
          "Send a UUID clientOid on every order and keep it for the retry, and read the order back by clientOid before placing again",
          "Budget requests by weight against gw-ratelimit-remaining and sleep for gw-ratelimit-reset milliseconds on 429000; sub-accounts share the pool",
          "There is no sandbox, so rehearse with the smallest order size on a dedicated sub-account",
          "Use the UTA V2 endpoints and hosts; the Classic API loses endpoints without notice, as the margin credit endpoints did on 21 October 2026"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 53.9
          }
        ],
        "editorialScores": {
          "ergonomics": 62,
          "maintenance": 73,
          "payments": 35,
          "reliability": 45,
          "schema": 60,
          "security": 55,
          "transparency": 52
        },
        "provenanceScore": 55,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-03",
            "maintenance": "2026-11-03",
            "payments": "2026-11-03",
            "reliability": "2026-11-03",
            "schema": "2026-11-03",
            "security": "2026-11-03",
            "transparency": "2026-11-03"
          },
          "last": "2026-11-03",
          "oldest": "2026-11-03",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "http": "curl https://api.kucoin.com/api/v1/market/orderbook/level1?symbol=BTC-USDT"
      },
      "letme": {
        "capability": "https://letme.dev/exchange.market-data",
        "tool": "https://letme.dev/kucoin"
      },
      "area": "payments",
      "unitPrices": [
        {
          "item": "Spot trade, LV0 maker or taker",
          "unit": "pct",
          "usd": 0.1,
          "note": "base rate; some pairs differ, 20 per cent off in KCS"
        }
      ],
      "provenance": {
        "legalEntity": "",
        "domain": "kucoin.com",
        "domainRegistered": "2013-11-13",
        "endpointOnVendorDomain": true,
        "terms": "https://www.kucoin.com/support/47185419968079",
        "privacy": "https://www.kucoin.com/legal/privacy-policy",
        "statusPage": "",
        "changelog": "https://www.kucoin.com/docs-new/change-log",
        "securityTxt": "none",
        "checked": "2026-11-03",
        "notes": [
          "The terms (last updated 29 October 2026) name no company; they deem all activity to occur in the Turks and Caicos Islands under its law with SIAC arbitration. /legal/terms-of-use is a shell page that links the support article recorded here. The privacy policy (dated 10/05/2026 in an ambiguous format) names KuCoin as controller with no company name.",
          "www.kucoin.com/robots.txt disallows assets, order and account paths only; docs-new and support pages are allowed.",
          "RDAP gives kucoin.com a registration date of 13 November 2013 (Amazon Registrar).",
          "https://www.kucoin.com/.well-known/security.txt answers 404. No status page found; status.kucoin.com does not resolve and the docs link none.",
          "The docs changelog is dated by day; its newest entry is dated 6 November 2026, three days ahead of the check, and the newest past entry 2 November 2026."
        ],
        "score": 55
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/kucoin.json",
      "live": {
        "slug": "kucoin",
        "securityTxt": {
          "url": "https://kucoin.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-11-04T15:54:04.738329571Z"
        },
        "updatedAt": "2026-11-04T15:54:04.738329571Z"
      }
    },
    "edges": [
      {
        "by": 29,
        "category": "transparency",
        "leads": "kucoin",
        "name": "Transparency \u0026 trust",
        "reasons": {
          "a": "The editorial half. A closed service whose user agreement exists but couldn't be read (script-drawn pages), so the licence clarity is unknown rather than unclear (10 of 30). The privacy policy was not read (0 of 30, unchecked). The testnet shutdown and the 2022 changelog entries are dated, with no deprecation policy (5 of 20). No subprocessor or data-location statement read (0 of 20). 10 + 0 + 5 + 0 = 15.",
          "b": "The editorial half. A closed hosted service with terms that are clear on use, liability and law but name no company (12 of 30). The privacy policy gives retention periods by purpose and provider (2 years after closure, 14 months for Firebase, 3 years for Jumio, 5 years for Sumsub) and names 41 services, with no data centre locations (22 of 30). Endpoints are removed and fields deprecated in dated changelog entries with no notice period or policy (8 of 20). Third parties named by service, locations not stated beyond transfers around the globe (10 of 20). 52."
        },
        "scores": {
          "a": 25,
          "b": 54
        }
      },
      {
        "by": 20,
        "category": "schema",
        "leads": "kucoin",
        "name": "Schema \u0026 documentation",
        "reasons": {
          "a": "No OpenAPI or other machine-readable contract found in the docs or the GitHub accounts (0). No llms.txt on htx.com, and the readable reference is a static page (0). Each endpoint states its purpose and parameters, without when-to-use guidance (12 of 20). Parameter tables carry types, required flags and enums for order types and states (10 of 15). Request and response examples throughout and error-code tables with messages (11 of 15). Versions v1 and v2 are mixed in one reference whose last changelog entry is 24 June 2022, while HTX's newer docs on htx.com couldn't be read (7 of 15). 0 + 0 + 12 + 10 + 11 + 7 = 40.",
          "b": "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."
        },
        "scores": {
          "a": 40,
          "b": 60
        }
      },
      {
        "by": 20,
        "category": "payments",
        "leads": "kucoin",
        "name": "Payments \u0026 pricing",
        "reasons": {
          "a": "No machine payment protocol (0). The fee schedule at htx.com/fee is drawn by script and answered no text, so no price is recorded first-hand (0 of 20, unchecked). Public market data needs no key, card or account; trading needs a verified and funded account. Judgement call (15 of 20). A person must sign up in a browser and pass identity checks (0). 0 + 0 + 15 + 0 = 15.",
          "b": "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."
        },
        "scores": {
          "a": 15,
          "b": 35
        }
      },
      {
        "by": 16,
        "category": "maintenance",
        "leads": "kucoin",
        "name": "Maintenance \u0026 community",
        "reasons": {
          "a": "Read as a closed service. The readable changelog ends on 24 June 2022, but the official contract SDKs were pushed on 21 October 2026 and the spot SDKs in April and July 2026, so the API surface is still being maintained; judgement call (20 of 30). SDK pushes on 30 July, 23 August and 21 October 2026 are commits, not releases (10 of 20). A Telegram group for API support and a support centre, neither tested; GitHub issues not read (8 of 15). Official SDKs in five languages (15). No CI seen, dependencies not checked (4 of 10). 20 + 10 + 8 + 15 + 4 = 57.",
          "b": "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."
        },
        "scores": {
          "a": 57,
          "b": 73
        }
      },
      {
        "by": 7,
        "category": "reliability",
        "leads": "kucoin",
        "name": "Reliability",
        "reasons": {
          "a": "Read with the hosted lines. No status page found; status.htx.com does not resolve and nothing on htx.com was readable (0). No readable incident history (5). Rate limits documented per endpoint with numbers, 100 order calls per 2 seconds per UID and so on, with remaining-quota headers (15). No 429 or Retry-After behaviour is documented and the only limit error named is 1006 for conditional orders; a client-order-id unique within 8 hours and an idempotent withdrawal id give safe retries on writes (8 of 15). No SLA found (0). The spot and swap APIs are generally available (10). 0 + 5 + 15 + 8 + 0 + 10 = 38.",
          "b": "Graded with the hosted lines on the API at api.kucoin.com. No status page found (status.kucoin.com does not resolve, the docs link none), so 0 for the page and 5 for no readable history. Rate limits are published per VIP level with per-endpoint weights and IP limits for public endpoints (15). Every response carries gw-ratelimit-limit, gw-ratelimit-remaining and gw-ratelimit-reset, 429000 is documented with a wait rule, and orders take a clientOid the docs recommend as a UUID (15). No SLA (0). The UTA V2 API is the production surface (10). 45."
        },
        "scores": {
          "a": 38,
          "b": 45
        }
      },
      {
        "by": 7,
        "category": "ergonomics",
        "leads": "htx",
        "name": "Agent ergonomics",
        "reasons": {
          "a": "Graded on the REST API. Responses can be sized with depth types, size and limit parameters on books, candles and history (15 of 25). Paging by from, size and direct on orders and history (14 of 20). Errors return err-code strings with messages, listed in tables (13 of 20). A client-order-id unique within 8 hours and idempotent withdrawal ids make retries safe, with no idempotency header on other writes (14 of 20). Few required parameters and official SDKs in five languages (13 of 15). 15 + 14 + 13 + 14 + 13 = 69.",
          "b": "Read for the API alone, since there is no MCP server. Responses take limit and cursor parameters on list endpoints and the order book depth is a parameter (14 of 25). Pagination and symbol filters on orders, fills and ledgers (15 of 20). Codes and messages per response, with the V2 scheme claimed to be clearer; the rate-limit page's own examples contradict its table, which costs an agent a turn (12 of 20). clientOid on orders makes retries safe; no MCP annotations to read (10 of 20). Three required fields on a spot order, official SDKs in five languages (11 of 15). 62."
        },
        "scores": {
          "a": 69,
          "b": 62
        }
      }
    ],
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "HTX",
        "b": "KuCoin",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "no (local only)",
        "name": "Hosted endpoint"
      },
      {
        "a": "",
        "b": "",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "0",
        "b": "none",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "yes",
        "name": "Read-only variant documented"
      },
      {
        "a": "no",
        "b": "no",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-21",
        "b": "2026-11-02",
        "name": "Last release"
      },
      {
        "a": "no date given",
        "b": "no date given",
        "name": "Terms last updated"
      },
      {
        "a": "no document linked",
        "b": "no date given",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "684 stars",
        "b": "55 stars",
        "name": "Popularity"
      }
    ],
    "faq": [
      {
        "answer": "KuCoin scores 53.9 (D) on agent readiness against HTX trading API's 43.3 (E), and leads in 6 of 7 scored categories. HTX trading API leads on agent ergonomics.",
        "question": "Which is better for AI agents, HTX trading API or KuCoin?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do HTX trading API and KuCoin need an API key?"
      },
      {
        "answer": "No hosted endpoint is listed for HTX trading API. No hosted endpoint is listed for KuCoin.",
        "question": "Can an agent call HTX trading API and KuCoin without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Agent ergonomics, 69 against 62"
        ],
        "also": null,
        "goodFor": "Spot and USDT-margined derivatives for agents that can hold an HTX key, with no MCP server and no testnet.",
        "slug": "htx",
        "watchFor": "No official MCP server; the only one in the MCP registry is a third party's read-only ticker server"
      },
      {
        "aheadOn": [
          "Reliability, 45 against 38",
          "Schema \u0026 documentation, 60 against 40",
          "Payments \u0026 pricing, 35 against 15",
          "Maintenance \u0026 community, 73 against 57",
          "Transparency \u0026 trust, 54 against 25"
        ],
        "also": null,
        "goodFor": "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.",
        "slug": "kucoin",
        "watchFor": "No official MCP server; the registry's `kucoin` entry is a third party's keyless market-data package"
      }
    ],
    "history": null,
    "job": {
      "capability": "exchange.market-data",
      "name": "Exchange market data"
    },
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      {
        "json": "https://www.anchorterminal.com/compare/bitfinex-vs-htx.json",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/bitfinex-vs-kucoin.json",
        "title": "Bitfinex API vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/bitfinex-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bitget-vs-htx.json",
        "title": "Bitget vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/bitget-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bitget-vs-kucoin.json",
        "title": "Bitget vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/bitget-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bithumb-vs-htx.json",
        "title": "Bithumb Open API vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/bithumb-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bithumb-vs-kucoin.json",
        "title": "Bithumb Open API vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/bithumb-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bitstamp-vs-htx.json",
        "title": "Bitstamp API vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/bitstamp-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bitstamp-vs-kucoin.json",
        "title": "Bitstamp API vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/bitstamp-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bybit-vs-htx.json",
        "title": "Bybit vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/bybit-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bybit-vs-kucoin.json",
        "title": "Bybit vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/bybit-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/crypto-com-exchange-vs-htx.json",
        "title": "Crypto.com Exchange API vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/crypto-com-exchange-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/crypto-com-exchange-vs-kucoin.json",
        "title": "Crypto.com Exchange API vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/crypto-com-exchange-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gate-io-vs-htx.json",
        "title": "Gate vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/gate-io-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gate-io-vs-kucoin.json",
        "title": "Gate vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/gate-io-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-exchange-vs-htx.json",
        "title": "Gemini Exchange API vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/gemini-exchange-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-exchange-vs-kucoin.json",
        "title": "Gemini Exchange API vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/gemini-exchange-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/htx-vs-hyperliquid.json",
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        "url": "https://www.anchorterminal.com/compare/htx-vs-hyperliquid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/htx-vs-kraken.json",
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        "url": "https://www.anchorterminal.com/compare/htx-vs-kraken"
      },
      {
        "json": "https://www.anchorterminal.com/compare/htx-vs-mexc.json",
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        "url": "https://www.anchorterminal.com/compare/htx-vs-mexc"
      },
      {
        "json": "https://www.anchorterminal.com/compare/htx-vs-okx.json",
        "title": "HTX trading API vs OKX API",
        "url": "https://www.anchorterminal.com/compare/htx-vs-okx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/htx-vs-uniswap.json",
        "title": "HTX trading API vs Uniswap Trading API",
        "url": "https://www.anchorterminal.com/compare/htx-vs-uniswap"
      },
      {
        "json": "https://www.anchorterminal.com/compare/htx-vs-upbit.json",
        "title": "HTX trading API vs Upbit Open API",
        "url": "https://www.anchorterminal.com/compare/htx-vs-upbit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kucoin-vs-mexc.json",
        "title": "KuCoin vs MEXC API",
        "url": "https://www.anchorterminal.com/compare/kucoin-vs-mexc"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kucoin-vs-okx.json",
        "title": "KuCoin vs OKX API",
        "url": "https://www.anchorterminal.com/compare/kucoin-vs-okx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kucoin-vs-uniswap.json",
        "title": "KuCoin vs Uniswap Trading API",
        "url": "https://www.anchorterminal.com/compare/kucoin-vs-uniswap"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kucoin-vs-upbit.json",
        "title": "KuCoin vs Upbit Open API",
        "url": "https://www.anchorterminal.com/compare/kucoin-vs-upbit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/binance-vs-htx.json",
        "title": "Binance API vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/binance-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/binance-vs-kucoin.json",
        "title": "Binance API vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/binance-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-htx.json",
        "title": "Coinbase Advanced Trade API vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-kucoin.json",
        "title": "Coinbase Advanced Trade API vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/coinbase-mcp-vs-htx.json",
        "title": "Coinbase MCP server (Coinbase for Agents) vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/coinbase-mcp-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/coinbase-mcp-vs-kucoin.json",
        "title": "Coinbase MCP server (Coinbase for Agents) vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/coinbase-mcp-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kraken-vs-kucoin.json",
        "title": "Kraken API vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/kraken-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deribit-vs-htx.json",
        "title": "Deribit vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deribit-vs-kucoin.json",
        "title": "Deribit vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/dydx-vs-htx.json",
        "title": "dYdX vs HTX trading API",
        "url": "https://www.anchorterminal.com/compare/dydx-vs-htx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/dydx-vs-kucoin.json",
        "title": "dYdX vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/dydx-vs-kucoin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/hyperliquid-vs-kucoin.json",
        "title": "Hyperliquid vs KuCoin",
        "url": "https://www.anchorterminal.com/compare/hyperliquid-vs-kucoin"
      }
    ],
    "panel": null,
    "scores": [
      {
        "by": 7,
        "edge": "kucoin",
        "htx": 38,
        "key": "reliability",
        "kucoin": 45,
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 20,
        "edge": "kucoin",
        "htx": 40,
        "key": "schema",
        "kucoin": 60,
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "by": 7,
        "edge": "htx",
        "htx": 69,
        "key": "ergonomics",
        "kucoin": 62,
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "by": 4,
        "edge": "kucoin",
        "htx": 51,
        "key": "security",
        "kucoin": 55,
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "by": 20,
        "edge": "kucoin",
        "htx": 15,
        "key": "payments",
        "kucoin": 35,
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 16,
        "edge": "kucoin",
        "htx": 57,
        "key": "maintenance",
        "kucoin": 73,
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "by": 29,
        "edge": "kucoin",
        "htx": 25,
        "key": "transparency",
        "kucoin": 54,
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "KuCoin scores 53.9 (D) on agent readiness against HTX trading API's 43.3 (E), and leads in 6 of 7 scored categories. HTX trading API leads on agent ergonomics. Both do exchange market data.",
    "tasks": null,
    "tutorials": [],
    "verdicts": {
      "htx": "HTX's API has per-endpoint rate limits, read, trade and withdraw key permissions with IP binding, and SDKs in five languages. No official MCP server exists, the testnet is closed, the public reference is still Huobi's with a 2022 changelog, and the fee schedule, terms and restricted countries are on script-drawn pages we couldn't read.",
      "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."
    }
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  "markdown": "KuCoin scores 53.9 (D) on agent readiness against HTX trading API's 43.3 (E), and leads in 6 of 7 scored categories. HTX trading API leads on agent ergonomics. Both do exchange market data.\n\n- HTX trading API: grade E, 43.3/100, rank #1166 of 1349. Markdown https://www.anchorterminal.com/tools/htx.md · JSON https://www.anchorterminal.com/api/v1/tools/htx.json\n- KuCoin: grade D, 53.9/100, rank #891 of 1349. Markdown https://www.anchorterminal.com/tools/kucoin.md · JSON https://www.anchorterminal.com/api/v1/tools/kucoin.json\n- Best crypto exchange APIs and MCP servers for AI agents: https://www.anchorterminal.com/best/crypto-exchanges/index.md\n- All 210 exchanges comparisons: https://www.anchorterminal.com/compare/crypto-exchanges/index.md\n\n## Which one, for what\n\n### HTX trading API (E)\n\nGood for: Spot and USDT-margined derivatives for agents that can hold an HTX key, with no MCP server and no testnet.\n\nAhead on:\n- Agent ergonomics, 69 against 62\n\nWatch for: No official MCP server; the only one in the MCP registry is a third party's read-only ticker server\n\n### KuCoin (D)\n\nGood 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.\n\nAhead on:\n- Reliability, 45 against 38\n- Schema \u0026 documentation, 60 against 40\n- Payments \u0026 pricing, 35 against 15\n- Maintenance \u0026 community, 73 against 57\n- Transparency \u0026 trust, 54 against 25\n\nWatch for: No official MCP server; the registry's `kucoin` entry is a third party's keyless market-data package\n\n\n## Why the edge\n\n### Transparency \u0026 trust: KuCoin +29\n\n- HTX trading API (25): The editorial half. A closed service whose user agreement exists but couldn't be read (script-drawn pages), so the licence clarity is unknown rather than unclear (10 of 30). The privacy policy was not read (0 of 30, unchecked). The testnet shutdown and the 2022 changelog entries are dated, with no deprecation policy (5 of 20). No subprocessor or data-location statement read (0 of 20). 10 + 0 + 5 + 0 = 15.\n- KuCoin (54): The editorial half. A closed hosted service with terms that are clear on use, liability and law but name no company (12 of 30). The privacy policy gives retention periods by purpose and provider (2 years after closure, 14 months for Firebase, 3 years for Jumio, 5 years for Sumsub) and names 41 services, with no data centre locations (22 of 30). Endpoints are removed and fields deprecated in dated changelog entries with no notice period or policy (8 of 20). Third parties named by service, locations not stated beyond transfers around the globe (10 of 20). 52.\n\n### Schema \u0026 documentation: KuCoin +20\n\n- HTX trading API (40): No OpenAPI or other machine-readable contract found in the docs or the GitHub accounts (0). No llms.txt on htx.com, and the readable reference is a static page (0). Each endpoint states its purpose and parameters, without when-to-use guidance (12 of 20). Parameter tables carry types, required flags and enums for order types and states (10 of 15). Request and response examples throughout and error-code tables with messages (11 of 15). Versions v1 and v2 are mixed in one reference whose last changelog entry is 24 June 2022, while HTX's newer docs on htx.com couldn't be read (7 of 15). 0 + 0 + 12 + 10 + 11 + 7 = 40.\n- 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.\n\n### Payments \u0026 pricing: KuCoin +20\n\n- HTX trading API (15): No machine payment protocol (0). The fee schedule at htx.com/fee is drawn by script and answered no text, so no price is recorded first-hand (0 of 20, unchecked). Public market data needs no key, card or account; trading needs a verified and funded account. Judgement call (15 of 20). A person must sign up in a browser and pass identity checks (0). 0 + 0 + 15 + 0 = 15.\n- 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.\n\n### Maintenance \u0026 community: KuCoin +16\n\n- HTX trading API (57): Read as a closed service. The readable changelog ends on 24 June 2022, but the official contract SDKs were pushed on 21 October 2026 and the spot SDKs in April and July 2026, so the API surface is still being maintained; judgement call (20 of 30). SDK pushes on 30 July, 23 August and 21 October 2026 are commits, not releases (10 of 20). A Telegram group for API support and a support centre, neither tested; GitHub issues not read (8 of 15). Official SDKs in five languages (15). No CI seen, dependencies not checked (4 of 10). 20 + 10 + 8 + 15 + 4 = 57.\n- 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.\n\n### Reliability: KuCoin +7\n\n- HTX trading API (38): Read with the hosted lines. No status page found; status.htx.com does not resolve and nothing on htx.com was readable (0). No readable incident history (5). Rate limits documented per endpoint with numbers, 100 order calls per 2 seconds per UID and so on, with remaining-quota headers (15). No 429 or Retry-After behaviour is documented and the only limit error named is 1006 for conditional orders; a client-order-id unique within 8 hours and an idempotent withdrawal id give safe retries on writes (8 of 15). No SLA found (0). The spot and swap APIs are generally available (10). 0 + 5 + 15 + 8 + 0 + 10 = 38.\n- KuCoin (45): Graded with the hosted lines on the API at api.kucoin.com. No status page found (status.kucoin.com does not resolve, the docs link none), so 0 for the page and 5 for no readable history. Rate limits are published per VIP level with per-endpoint weights and IP limits for public endpoints (15). Every response carries gw-ratelimit-limit, gw-ratelimit-remaining and gw-ratelimit-reset, 429000 is documented with a wait rule, and orders take a clientOid the docs recommend as a UUID (15). No SLA (0). The UTA V2 API is the production surface (10). 45.\n\n### Agent ergonomics: HTX trading API +7\n\n- HTX trading API (69): Graded on the REST API. Responses can be sized with depth types, size and limit parameters on books, candles and history (15 of 25). Paging by from, size and direct on orders and history (14 of 20). Errors return err-code strings with messages, listed in tables (13 of 20). A client-order-id unique within 8 hours and idempotent withdrawal ids make retries safe, with no idempotency header on other writes (14 of 20). Few required parameters and official SDKs in five languages (13 of 15). 15 + 14 + 13 + 14 + 13 = 69.\n- KuCoin (62): Read for the API alone, since there is no MCP server. Responses take limit and cursor parameters on list endpoints and the order book depth is a parameter (14 of 25). Pagination and symbol filters on orders, fills and ledgers (15 of 20). Codes and messages per response, with the V2 scheme claimed to be clearer; the rate-limit page's own examples contradict its table, which costs an agent a turn (12 of 20). clientOid on orders makes retries safe; no MCP annotations to read (10 of 20). Three required fields on a spot order, official SDKs in five languages (11 of 15). 62.\n\n## Score by category\n\n| Category | Weight | HTX trading API | KuCoin | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 38 | 45 | KuCoin +7 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 40 | 60 | KuCoin +20 |\n| Agent ergonomics | 13% (16.2 this run) | 69 | 62 | HTX trading API +7 |\n| Security \u0026 auth | 14% (17.5 this run) | 51 | 55 | KuCoin +4 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 15 | 35 | KuCoin +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 57 | 73 | KuCoin +16 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 25 | 54 | KuCoin +29 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **43.3 · E** | **53.9 · D** | |\n\n## Facts side by side\n\n| Fact | HTX trading API | KuCoin |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | HTX | KuCoin |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports |  |  |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Tools exposed | 0 | none |\n| Read-only variant documented | no | yes |\n| llms.txt | no | no |\n| Last release | 2026-10-21 | 2026-11-02 |\n| Terms last updated | no date given | no date given |\n| Privacy policy last updated | no document linked | no date given |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | yes |\n| Terms restrict benchmarking | not found in the text | not found in the text |\n| Terms or service can change without notice | yes | yes |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | 684 stars | 55 stars |\n\n## Verdicts\n\n**HTX trading API.** HTX's API has per-endpoint rate limits, read, trade and withdraw key permissions with IP binding, and SDKs in five languages. No official MCP server exists, the testnet is closed, the public reference is still Huobi's with a 2022 changelog, and the fee schedule, terms and restricted countries are on script-drawn pages we couldn't read.\n\n**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.\n\n## Before you call either\n\n### HTX trading API\n\n1. Ask the operator for a key with Read and Trade only and bound to your IP addresses; a key without IP binding expires after 90 days\n2. Send a fresh client-order-id of up to 64 characters with every order and reuse it only on retry; a repeat within 8 hours answers invalid.client.order.id\n3. Watch X-HB-RateLimit-Requests-Remain and pace at under 100 order calls per 2 seconds per UID; limits are shared by every key on the account\n4. There is no testnet; try order logic with the smallest size the market allows\n5. Confirm the person's country is served before trading; the restricted list in the user agreement couldn't be read here\n\n### KuCoin\n\n1. 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\n2. Send a UUID clientOid on every order and keep it for the retry, and read the order back by clientOid before placing again\n3. Budget requests by weight against gw-ratelimit-remaining and sleep for gw-ratelimit-reset milliseconds on 429000; sub-accounts share the pool\n4. There is no sandbox, so rehearse with the smallest order size on a dedicated sub-account\n5. Use the UTA V2 endpoints and hosts; the Classic API loses endpoints without notice, as the margin credit endpoints did on 21 October 2026\n\n## Questions\n\n### Which is better for AI agents, HTX trading API or KuCoin?\n\nKuCoin scores 53.9 (D) on agent readiness against HTX trading API's 43.3 (E), and leads in 6 of 7 scored categories. HTX trading API leads on agent ergonomics.\n\n### Do HTX trading API and KuCoin need an API key?\n\nBoth need an API key.\n\n### Can an agent call HTX trading API and KuCoin without installing anything?\n\nNo hosted endpoint is listed for HTX trading API. No hosted endpoint is listed for KuCoin.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/htx-vs-kucoin.json, and with the fewest tokens: https://www.anchorterminal.com/compare/htx-vs-kucoin.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"htx\", \"b\": \"kucoin\"}`. From a terminal: `anchor compare htx kucoin`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/htx.json and https://www.anchorterminal.com/api/v1/tools/kucoin.json\n\n## Other comparisons with HTX trading API or KuCoin\n\n- [Bitfinex API vs HTX trading API](https://www.anchorterminal.com/compare/bitfinex-vs-htx.md)\n- [Bitfinex API vs KuCoin](https://www.anchorterminal.com/compare/bitfinex-vs-kucoin.md)\n- [Bitget vs HTX trading API](https://www.anchorterminal.com/compare/bitget-vs-htx.md)\n- [Bitget vs KuCoin](https://www.anchorterminal.com/compare/bitget-vs-kucoin.md)\n- [Bithumb Open API vs HTX trading API](https://www.anchorterminal.com/compare/bithumb-vs-htx.md)\n- [Bithumb Open API vs KuCoin](https://www.anchorterminal.com/compare/bithumb-vs-kucoin.md)\n- [Bitstamp API vs HTX trading API](https://www.anchorterminal.com/compare/bitstamp-vs-htx.md)\n- [Bitstamp API vs KuCoin](https://www.anchorterminal.com/compare/bitstamp-vs-kucoin.md)\n- [Bybit vs HTX trading API](https://www.anchorterminal.com/compare/bybit-vs-htx.md)\n- [Bybit vs KuCoin](https://www.anchorterminal.com/compare/bybit-vs-kucoin.md)\n- [Crypto.com Exchange API vs HTX trading API](https://www.anchorterminal.com/compare/crypto-com-exchange-vs-htx.md)\n- [Crypto.com Exchange API vs KuCoin](https://www.anchorterminal.com/compare/crypto-com-exchange-vs-kucoin.md)\n- [Gate vs HTX trading API](https://www.anchorterminal.com/compare/gate-io-vs-htx.md)\n- [Gate vs KuCoin](https://www.anchorterminal.com/compare/gate-io-vs-kucoin.md)\n- [Gemini Exchange API vs HTX trading API](https://www.anchorterminal.com/compare/gemini-exchange-vs-htx.md)\n- [Gemini Exchange API vs KuCoin](https://www.anchorterminal.com/compare/gemini-exchange-vs-kucoin.md)\n- [HTX trading API vs Hyperliquid](https://www.anchorterminal.com/compare/htx-vs-hyperliquid.md)\n- [HTX trading API vs Kraken API](https://www.anchorterminal.com/compare/htx-vs-kraken.md)\n- [HTX trading API vs MEXC API](https://www.anchorterminal.com/compare/htx-vs-mexc.md)\n- [HTX trading API vs OKX API](https://www.anchorterminal.com/compare/htx-vs-okx.md)\n- [HTX trading API vs Uniswap Trading API](https://www.anchorterminal.com/compare/htx-vs-uniswap.md)\n- [HTX trading API vs Upbit Open API](https://www.anchorterminal.com/compare/htx-vs-upbit.md)\n- [KuCoin vs MEXC API](https://www.anchorterminal.com/compare/kucoin-vs-mexc.md)\n- [KuCoin vs OKX API](https://www.anchorterminal.com/compare/kucoin-vs-okx.md)\n- [KuCoin vs Uniswap Trading API](https://www.anchorterminal.com/compare/kucoin-vs-uniswap.md)\n- [KuCoin vs Upbit Open API](https://www.anchorterminal.com/compare/kucoin-vs-upbit.md)\n- [Binance API vs HTX trading API](https://www.anchorterminal.com/compare/binance-vs-htx.md)\n- [Binance API vs KuCoin](https://www.anchorterminal.com/compare/binance-vs-kucoin.md)\n- [Coinbase Advanced Trade API vs HTX trading API](https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-htx.md)\n- [Coinbase Advanced Trade API vs KuCoin](https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-kucoin.md)\n- [Coinbase MCP server (Coinbase for Agents) vs HTX trading API](https://www.anchorterminal.com/compare/coinbase-mcp-vs-htx.md)\n- [Coinbase MCP server (Coinbase for Agents) vs KuCoin](https://www.anchorterminal.com/compare/coinbase-mcp-vs-kucoin.md)\n- [Kraken API vs KuCoin](https://www.anchorterminal.com/compare/kraken-vs-kucoin.md)\n- [Deribit vs HTX trading API](https://www.anchorterminal.com/compare/deribit-vs-htx.md)\n- [Deribit vs KuCoin](https://www.anchorterminal.com/compare/deribit-vs-kucoin.md)\n- [dYdX vs HTX trading API](https://www.anchorterminal.com/compare/dydx-vs-htx.md)\n- [dYdX vs KuCoin](https://www.anchorterminal.com/compare/dydx-vs-kucoin.md)\n- [Hyperliquid vs KuCoin](https://www.anchorterminal.com/compare/hyperliquid-vs-kucoin.md)\n",
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