{ "data": { "a": { "slug": "bitfinex", "name": "Bitfinex API", "vendor": "iFinex Inc.", "vendorUrl": "https://www.bitfinex.com", "kind": "http-api", "category": "crypto-exchanges", "summary": "Bitfinex's v2 API for spot, margin, derivatives and peer-to-peer funding, with balances, deposits and withdrawals, through REST and WebSocket with scoped API keys, paper-trading sub-accounts and official Node, Python, Go and Ruby clients.", "url": "https://www.anchorterminal.com/tools/bitfinex", "markdownUrl": "https://www.anchorterminal.com/tools/bitfinex.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/bitfinex.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/bitfinex.json", "dns": "bitfinex.grade.anchorterminal.com", "repo": "https://github.com/bitfinexcom/bitfinex-api-node", "license": "Proprietary hosted API under Bitfinex's API Terms of Service, which our reader couldn't load. The official client libraries (Node, Python, Go, Ruby) are MIT or Apache-2.0", "transports": [], "packages": [ { "registry": "npm", "name": "bitfinex-api-node" }, { "registry": "pypi", "name": "bitfinex-api-py" } ], "auth": "api-key", "authNotes": "API key and secret made at setting.bitfinex.com/api after a browser signup, with 2FA and an email confirmation, shown once. Each key carries read and write permissions per scope (account, history, orders, positions, funding, settings, wallets, withdraw, ui_withdraw, bfxpay), readable back from `POST /v2/auth/r/permissions`, and keys are revoked from the same page; a strictly increasing nonce per key. Bitfinex's support article on keys says a key can be bound to up to 20 IP addresses, per the search result's text, since the article itself answered 403 (https://docs.bitfinex.com/docs/requirements-and-limitations, https://docs.bitfinex.com/reference/key-permissions, checked 2026-11-03).", "pricing": "usage", "pricingNotes": "The API itself costs nothing. The fees page read on 3 November 2026 shows zero maker and zero taker fees for exchange, margin and derivatives order execution with no volume tiers, margin funding lender fees of 15% of interest (18% when the offer is hidden) with up to 5% off for LEO holders, a 5% takeover fee, free crypto deposits and bank wire 0.1% (minimum 60 for deposits, 100 for withdrawals, USD or EUR). Paper trading on a sub-account needs no money (https://www.bitfinex.com/fees, checked 2026-11-03).", "priceSummary": "0% fee", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the API docs, llms.txt or fees page (checked 2026-11-03). Fees are taken from the account; onboarding is a browser signup.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 480, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-03" }, "docsUrl": "https://docs.bitfinex.com", "llmsTxt": "https://docs.bitfinex.com/llms.txt", "capabilities": [ "exchange.market-data", "exchange.spot-trading", "exchange.derivatives", "exchange.balances", "exchange.transfers", "exchange.staking", "market.crypto" ], "tags": [ "official", "hosted", "api-key", "llms-txt", "sandbox", "status-page", "javascript", "python", "go", "ruby", "usage-priced" ], "lastRelease": "2026-07-18", "graded": true, "anchor": { "graded": true, "score": 58.4, "grade": "C", "agentReady": false, "rank": 687, "ranked": true, "rankOf": 1349, "categoryRank": 10, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 61, "maintenance": 41, "payments": 40, "reliability": 85, "schema": 48, "security": 62, "transparency": 49 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-11-03" }, "negative": 0, "verdict": "Bitfinex gives an agent scoped keys with a separate withdraw permission, paper-trading sub-accounts on the production API, llms.txt and official clients in four languages. There is no official MCP server, responses are positional arrays with empty error bodies, rate limits run 10 to 90 a minute per IP, and the terms, API terms and privacy statement could not be read.", "bestFor": "An agent trading spot, margin or derivatives, or lending on the funding market, with scoped keys, official clients and paper trading.", "strengths": [ "Per-scope read and write permissions on each key, including a separate `withdraw` scope, readable back from the permissions endpoint", "Paper trading on a sub-account against test symbols on the same production API, with no money at risk", "llms.txt with a Markdown twin of every docs page, and official Node, Python, Go and Ruby clients", "Rate limits, connection limits and the `ERR_RATE_LIMIT` response documented with numbers", "A Statuspage history going back to 2021 and a fees page without login" ], "weaknesses": [ "No official MCP server, OpenAPI file or AsyncAPI file; the registry's Bitfinex servers are third parties proxying public market data", "Responses are positional arrays and authenticated errors answer 400 with an empty object, so an agent must map indexes and guess causes", "Rate limits of 10 to 90 requests a minute per IP with a 60-second block and no Retry-After", "The Exchange Terms, API Terms of Service, privacy statement and support articles could not be read, so the bot clauses, retention and restricted countries are unchecked", "The docs changelog stops at October 2024 and the v1 deprecation has no date" ], "agentNotes": [ "Mint a key with read on the scopes the task needs and write only on `orders`; never grant `withdraw` to a trading key, and bind the key to known IPs", "Use one key per client process, since each key keeps its own strictly increasing nonce and a reused nonce is rejected", "Rehearse on a paper-trading sub-account with the TEST symbols before touching real balances; the sub-account cannot be converted later", "Plan requests against the per-endpoint limit of 10 to 90 a minute per IP; `ERR_RATE_LIMIT` blocks the IP for 60 seconds with no Retry-After", "Map each response by position from the docs' field tables and set a `cid` on orders, because responses are arrays and a 400 carries no reason" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "C", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 58.4 } ], "editorialScores": { "ergonomics": 61, "maintenance": 41, "payments": 40, "reliability": 85, "schema": 48, "security": 62, "transparency": 13 }, "provenanceScore": 85, "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": { "install": "npm install bitfinex-api-node", "http": "curl https://api-pub.bitfinex.com/v2/ticker/tBTCUSD" }, "letme": { "capability": "https://letme.dev/exchange.market-data", "tool": "https://letme.dev/bitfinex" }, "area": "payments", "unitPrices": [ { "item": "Exchange maker fee, as shown on 3 November 2026", "unit": "pct", "usd": 0, "note": "no tiers or date shown; reads as a promotion" }, { "item": "Exchange taker fee, as shown on 3 November 2026", "unit": "pct", "usd": 0, "note": "no tiers or date shown; reads as a promotion" }, { "item": "Margin funding lender fee on interest earned", "unit": "pct", "usd": 15, "note": "18% when the offer is hidden, up to 5% off for LEO holders" } ], "provenance": { "legalEntity": "iFinex Inc.", "domain": "bitfinex.com", "domainRegistered": "2012-10-11", "endpointOnVendorDomain": true, "terms": "https://www.bitfinex.com/legal/exchange/terms/", "privacy": "https://www.bitfinex.com/legal/privacy/", "statusPage": "https://bitfinex.statuspage.io", "changelog": "https://docs.bitfinex.com/docs/changelog", "securityTxt": "none", "checked": "2026-11-03", "notes": [ "iFinex Inc. is named only in the copyright line of bitfinex.com; the Exchange Terms, API Terms of Service and privacy statement pages draw their text by script and loaded only navigation, so the contracting entity and its jurisdiction are unconfirmed.", "RDAP gives bitfinex.com a registration date of 11 October 2012.", "https://www.bitfinex.com/.well-known/security.txt returns 404.", "www.bitfinex.com/robots.txt allows the pages read; docs.bitfinex.com allows all and points to llms.txt; bitfinex.statuspage.io disallows /api/ and /embed/, so the history feed was read. support.bitfinex.com's robots.txt allows articles but the articles answered 403.", "The docs changelog's latest entry is 16 October 2024; the API clients carry the recent releases." ], "score": 85 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/bitfinex.json", "live": { "slug": "bitfinex", "vendorStatus": { "page": "https://bitfinex.statuspage.io", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-11-04T20:04:41.688156046Z" }, "versions": [ { "registry": "github", "name": "bitfinexcom/bitfinex-api-node", "version": "4.0.15", "released": "2020-07-02", "seenAt": "2026-11-04T20:02:46.845797373Z" }, { "registry": "npm", "name": "bitfinex-api-node", "version": "9.1.0", "seenAt": "2026-11-04T20:02:45.764784853Z" }, { "registry": "pypi", "name": "bitfinex-api-py", "version": "4.0.0", "released": "2025-10-18", "seenAt": "2026-11-04T20:02:46.619664479Z" } ], "githubStars": 480, "npmWeekly": 6284, "pypiWeekly": 832, "securityTxt": { "url": "https://bitfinex.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-04T15:53:26.210646703Z" }, "updatedAt": "2026-11-04T20:04:41.688156046Z" } }, "answer": "OKX API scores 64.3 (B) on agent readiness against Bitfinex API's 58.4 (C), and leads in 5 of 7 scored categories. Bitfinex API leads on reliability and payments \u0026 pricing.", "b": { "slug": "okx", "name": "OKX API", "vendor": "OKX", "vendorUrl": "https://www.okx.com/docs-v5/en/", "kind": "http-api", "category": "crypto-exchanges", "summary": "OKX's V5 API covers spot, margin, perpetual, futures and options trading, account and market data over REST and WebSocket, with demo trading on the same host and an open-source Agent Trade Kit whose okx-trade-mcp package is a local MCP server.", "url": "https://www.anchorterminal.com/tools/okx", "markdownUrl": "https://www.anchorterminal.com/tools/okx.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/okx.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/okx.json", "dns": "okx.grade.anchorterminal.com", "repo": "https://github.com/okx/agent-trade-kit", "license": "Proprietary hosted service under OKX's Terms of Service (29 October 2026) and API Agreement (28 July 2026). The Agent Trade Kit (MCP server, CLI and skills) is MIT", "transports": [ "stdio" ], "packages": [ { "registry": "npm", "name": "@okx_ai/okx-trade-mcp" }, { "registry": "npm", "name": "@okx_ai/okx-trade-cli" }, { "registry": "pypi", "name": "python-okx" } ], "auth": "api-key", "authNotes": "API key, secret and passphrase made at okx.com/account/my-api, with HMAC-SHA256 signatures over a timestamp and the request. Permissions are Read, Trade and Withdraw, singly or combined; each key binds up to 20 IP addresses or ranges, and a Trade or Withdraw key with no IP binding expires after 14 days without use. Demo trading uses the same host with the header `x-simulated-trading` set to 1 and keys that do not expire. US and Australian users call us.okx.com and EEA users eea.okx.com. The MCP server reads the key from ~/.okx/config.toml, checks its permissions at startup and hides order tools when the key cannot trade (https://www.okx.com/docs-v5/en/, https://www.okx.com/docs-v5/agent_en/, checked 2026-11-03).", "pricing": "usage", "pricingNotes": "The API costs nothing to call. Trades carry maker and taker fees by regular and VIP level; the fee page at okx.com/fees loads its table by script and the fee FAQ says the rates that apply are the ones shown while logged in, so the lowest tier's rates are unread. Public market data and demo trading need no funded account.", "priceSummary": "Pay per use", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the V5 docs, the API agreement or the Agent Trade Kit (checked 2026-11-03).", "endpoints": [] }, "toolCount": 170, "popularity": { "githubStars": 499, "npmWeekly": 1839, "pypiWeekly": null, "asOf": "2026-11-03" }, "docsUrl": "https://www.okx.com/docs-v5/en/", "llmsTxt": "https://www.okx.com/llms.txt", "capabilities": [ "exchange.spot-trading", "exchange.market-data", "exchange.derivatives", "exchange.balances", "exchange.transfers", "exchange.staking", "market.crypto" ], "tags": [ "hosted", "official", "closed-source", "api-key", "mcp", "cli", "llms-txt", "sandbox", "typescript", "python", "usage-priced", "no-card", "mit" ], "lastRelease": "2026-10-28", "graded": true, "anchor": { "graded": true, "score": 64.3, "grade": "B", "agentReady": false, "rank": 413, "ranked": true, "rankOf": 1349, "categoryRank": 4, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 77, "maintenance": 81, "payments": 20, "reliability": 65, "schema": 73, "security": 68, "transparency": 62 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-03" }, "negative": 0, "verdict": "OKX publishes per-endpoint rate limits, Read, Trade and Withdraw key permissions with IP binding, demo trading on the production host, and an MIT MCP server with 170 tools, a read-only flag and a permission check at startup. The fee table and privacy policy were not read, no OpenAPI file was found, and the news tools return third-party text.", "bestFor": "An agent trading spot, perpetuals, futures or options on a person's OKX account from a local machine, with demo trading to test first and grid or DCA bots through the kit.", "strengths": [ "Official local MCP server, MIT, with modules, --read-only, a demo profile, readOnlyHint annotations and a startup check that hides order tools when the key cannot trade", "Keys limited to Read, Trade or Withdraw, bound to up to 20 IPs, with unbound Trade and Withdraw keys expiring after 14 idle days", "Rate limits published per endpoint and per User ID, with sub-account and WebSocket limits in numbers", "Demo trading on the production hosts with one header, keys that do not expire, and a demo profile in the kit", "An API Agreement written for agents, naming prohibited tactics, minimum key scope and rate-limit circumvention" ], "weaknesses": [ "The fee table loads by script and the fee FAQ defers to the logged-in view, so maker and taker rates were not read", "No OpenAPI file was found in the docs; the machine-readable contract is the kit's tool definitions", "The status page lists incidents without component history, and its newest entry is from March 2024", "The news and smart money tools return third-party text with no documented guidance on treating it as untrusted", "Trade tools in the kit carry destructiveHint false, and the npm package runs a postinstall script" ], "agentNotes": [ "Start okx-trade-mcp with --profile demo first, then --read-only on a live key; load only the modules the task needs", "Use a sub-account key with Read and Trade only, bound to the agent's IP; an unbound Trade key expires after 14 idle days", "Stay under 60 place-order requests per 2 seconds per instrument and at most 3 amendments in flight per order; 50011 means the limit was hit", "Send a clOrdId on every order and use the structured error block (code, message, endpoint) to diagnose with read-only tools before retrying", "Call us.okx.com or eea.okx.com for US, Australian and EEA accounts; openapi.okx.com does not serve those regions" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 64.3 } ], "editorialScores": { "ergonomics": 77, "maintenance": 81, "payments": 20, "reliability": 65, "schema": 73, "security": 68, "transparency": 38 }, "provenanceScore": 85, "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": { "install": "npm install -g @okx_ai/okx-trade-mcp @okx_ai/okx-trade-cli", "http": "curl https://www.okx.com/api/v5/market/ticker?instId=BTC-USDT", "config": { "mcpServers": { "okx-demo": { "args": [ "-y", "@okx_ai/okx-trade-mcp", "--profile", "demo" ], "command": "npx" } } } }, "letme": { "capability": "https://letme.dev/exchange.spot-trading", "tool": "https://letme.dev/okx" }, "area": "payments", "provenance": { "legalEntity": "Aux Cayes FinTech Co. Ltd.", "domain": "okx.com", "domainRegistered": "2001-07-03", "endpointOnVendorDomain": true, "terms": "https://www.okx.com/help/terms-of-service", "privacy": "https://www.okx.com/help/privacy-policy", "statusPage": "https://www.okx.com/status", "changelog": "https://www.okx.com/docs-v5/log_en/", "securityTxt": "none", "checked": "2026-11-03", "notes": [ "The Terms of Service (last updated 29 October 2026) name Aux Cayes FinTech Co. Ltd. for all users not served by a regional OKX entity; the page metadata of the API Agreement also lists it as publisher. The governing-law clause sat past the part of the page we read. The privacy policy URL is OKX's help-centre page and was not read.", "RDAP gives okx.com a registration date of 3 July 2001, long before OKX took the name in 2022.", "https://www.okx.com/.well-known/security.txt answers 404; the Agent Trade Kit's SECURITY.md names security@okx.com.", "www.okx.com/robots.txt allows the docs, help and status pages read and /llms.txt, and disallows account, KYC and other private paths.", "okx.com/status is OKX's own page with issue descriptions and maintenance notices in UTC+8, no component history and no feed found." ], "score": 85 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/okx.json", "live": { "slug": "okx", "vendorStatus": { "page": "https://www.okx.com/status", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-04T15:32:13.2375881Z" }, "securityTxt": { "url": "https://okx.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-04T15:53:49.77403161Z" }, "updatedAt": "2026-11-04T15:53:49.77403161Z" } }, "edges": [ { "by": 40, "category": "maintenance", "leads": "okx", "name": "Maintenance \u0026 community", "reasons": { "a": "Read as a closed service with open clients. The last dated change we could read is bitfinex-api-node 9.1.0 on 18 July 2026, 108 days before the check; the docs changelog stops in October 2024 (10). Not three dated releases in the last 90 days (0). The bitfinexcom organisation pushes often (bfx-report on 3 November 2026) and the clients have issue trackers, but support articles answered 403 and no reply times were read (10 of 25). Official clients current in four languages, Node 9.1.0 of July 2026 and Python 4.0.0 of October 2025; not in the MCP registry (15). The Node client has a dependency history of security fixes (its last GitHub release notes name two) and no CI was read (6 of 10). 10 + 0 + 10 + 15 + 6 = 41.", "b": "Read as a closed service with an open-source kit. Changelog entry of 27 October 2026 and kit v1.5.0 on 28 October (30). Changelog entries on 3, 6, 11, 18, 20 and 26 August, 15, 29 and 30 September and 27 October, and kit releases on 20 and 21 August, 1, 7, 14 and 23 September, 19 and 28 October (20). A public changelog, a Telegram community for the kit and GitHub issues whose replies were not read (10 of 15). python-okx is named as the official SDK and the kit is current; the MCP server is not in the official registry (12 of 15). The kit runs CI on push and pull request across Node 18, 20 and 26 with unit tests and coverage (9 of 10). 30 + 20 + 10 + 12 + 9 = 81." }, "scores": { "a": 41, "b": 81 } }, { "by": 25, "category": "schema", "leads": "okx", "name": "Schema \u0026 documentation", "reasons": { "a": "No OpenAPI or AsyncAPI file was found on docs.bitfinex.com, in llms.txt or in the client repositories (0). llms.txt and a .md twin of every docs page (10). Each reference page states the endpoint's purpose and fields, and the introduction says when to use api-pub against api, but nothing says when not to use an endpoint (14 of 20). Responses are positional arrays described in field tables, inputs are typed in prose with some enumerations (wallet names, order types) and required fields marked; the withdrawal CODE field is work in progress (7 of 15). Signed-request recipes in five languages, but authenticated errors are documented as 400 with an empty object and there is no error reference (9 of 15). Version v2 in the path and a dated changelog, whose last entry is October 2024 and whose v1 deprecation has no date (8 of 15). 0 + 10 + 14 + 7 + 9 + 8 = 48.", "b": "No OpenAPI file was found in the V5 docs; the kit's tool definitions are typed TypeScript with annotations, and the organisation has an undescribed ai-builder-openapi-md repository we did not read (12 of 25). okx.com/llms.txt exists and links the API and Agent Trade Kit pages, though the V5 docs have no Markdown twins (5 of 10). Each endpoint states its rate limit, rule, parameters and notes (15 of 20). Enums for ordType, tdMode and instType with required flags (12 of 15). Request and response examples per endpoint and an error code list with messages (14 of 15). A dated changelog with an upcoming-changes section that labels breaking changes and dates sunsets (15). 12 + 5 + 15 + 12 + 14 + 15 = 73." }, "scores": { "a": 48, "b": 73 } }, { "by": 20, "category": "reliability", "leads": "bitfinex", "name": "Reliability", "reasons": { "a": "Read with the hosted lines on the v2 API at api.bitfinex.com. bitfinex.statuspage.io is a Statuspage site with history back to May 2021 (20). Its feed has no entry between 25 March 2026 and 3 November 2026, so the last 90 days are clean on the record; the feed logs platform-wide outages only (a 14-hour maintenance in March 2026, a 3-hour outage in August 2025), so smaller incidents may go unrecorded. Judgement call (30). Rate limits with numbers, 10 to 90 a minute per IP and the WebSocket connection limits (15). `ERR_RATE_LIMIT` and the 60-second block are documented, with no Retry-After; orders take a `cid` but no idempotency key or retry guidance was found (10 of 15). No SLA found (0). Generally available (10). 20 + 30 + 15 + 10 + 0 + 10 = 85.", "b": "Read with the hosted lines on the V5 REST API. okx.com/status is OKX's own page with issue descriptions, maintenance notices and deposit and withdrawal status, but no component history or feed (10 of 20). It lists no incident between 5 August and 3 November 2026; its newest entry is from March 2024, and whether every incident reaches the page cannot be told, so read as clean with a doubt (20 of 30). Rate limits per endpoint, per User ID and per sub-account with numbers, and WebSocket limits (15). Error 50011 on a limit, a clOrdId on orders and a cap of 3 amendments in flight, but no Retry-After or backoff guidance found (10 of 15). No SLA (0). Generally available (10). 10 + 20 + 15 + 10 + 0 + 10 = 65." }, "scores": { "a": 85, "b": 65 } }, { "by": 20, "category": "payments", "leads": "bitfinex", "name": "Payments \u0026 pricing", "reasons": { "a": "No machine payment protocol (0). The fees page is public without login (20), though it shows zero maker and taker with no tiers or date. The API is free, public endpoints need no account, and paper trading needs no money (20). A person must sign up in a browser with identity checks and mint the key (0). 0 + 20 + 20 + 0 = 40.", "b": "No machine payment protocol (0). The fee table loads by script and the fee FAQ defers to the logged-in view, so no rate was read (0 of 20, unchecked). Public market data and demo trading need no funded account or card (20). A person signs up, verifies and mints a key (0). 0 + 0 + 20 + 0 = 20." }, "scores": { "a": 40, "b": 20 } }, { "by": 16, "category": "ergonomics", "leads": "okx", "name": "Agent ergonomics", "reasons": { "a": "Graded on the REST API. Limits on trades, candles and book depth, and `pub:list` config endpoints keep responses small, but positional arrays make every field a lookup (14 of 25). `start`, `end`, `limit` and `sort` on history endpoints and per-symbol variants (16 of 20). `ERR_RATE_LIMIT` is actionable; authenticated 400s return `{}` and withdrawal status strings may change, so an agent cannot branch on causes (8 of 20). A client id on orders, order multi-op and cancel-multiple, but no idempotency key and no retry contract (8 of 20). Few required parameters and official clients in Node, Python, Go and Ruby (15). 14 + 16 + 8 + 8 + 15 = 61.", "b": "limit parameters on books, candles and history, and in the kit --modules and --read-only narrow 170 tools to the three default modules; no field selection (17 of 25). after, before and limit cursors on history endpoints (18 of 20). Numeric codes with messages, such as 51020 for an invalid quantity, and the kit returns a structured error block with code, message and endpoint (17 of 20). clOrdId on orders, batch endpoints and a cap of 3 amendments in flight; the kit sets readOnlyHint on query tools but destructiveHint false on order tools and has no idempotency key (13 of 20). python-okx, the CLI and a demo profile, with passphrase and HMAC signing on every private call (12 of 15). 17 + 18 + 17 + 13 + 12 = 77." }, "scores": { "a": 61, "b": 77 } }, { "by": 13, "category": "transparency", "leads": "okx", "name": "Transparency \u0026 trust", "reasons": { "a": "The editorial half. A closed service whose Exchange Terms and API Terms of Service loaded only navigation, so the licence terms are unknown; the clients are MIT and Apache-2.0 (8 of 30). The privacy statement loaded only navigation, so retention and data handling are unchecked (0 of 30). The docs say v1 will be deprecated \"at some point in the future\" with no date, and the Python client's 4.0.0 removed endpoints with a release note (5 of 20). Subprocessors and data locations are in the unread privacy statement (0). 8 + 0 + 5 + 0 = 13.", "b": "The editorial half. A closed service with terms that name the contracting entities by region and an API Agreement for agents; the kit is MIT (17 of 30). The privacy policy was not read (5 of 30). The changelog dates sunsets and labels breaking changes, such as port 8443 on 31 October and 16 November 2026 (16 of 20). No subprocessor or data-location statement read; the MCP server is local and its npm package runs a postinstall script whose purpose we did not trace (0 of 20). 17 + 5 + 16 + 0 = 38." }, "scores": { "a": 49, "b": 62 } } ], "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "iFinex Inc.", "b": "OKX", "name": "Vendor" }, { "a": "no (local only)", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "", "b": "stdio", "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": "Proprietary hosted API under Bitfinex's API Terms of Service, which our reader couldn't load. The official client libraries (Node, Python, Go, Ruby) are MIT or Apache-2.0", "b": "Proprietary hosted service under OKX's Terms of Service (29 October 2026) and API Agreement (28 July 2026). The Agent Trade Kit (MCP server, CLI and skills) is MIT", "name": "Licence" }, { "a": "none", "b": "170", "name": "Tools exposed" }, { "a": "no", "b": "yes", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-07-18", "b": "2026-10-28", "name": "Last release" }, { "a": "couldn't be read", "b": "2026-10-29", "name": "Terms last updated" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Privacy policy last updated" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "couldn't be read", "b": "yes", "name": "Terms or service can change without notice" }, { "a": "couldn't be read", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "480 stars", "b": "499 stars, 1.8k npm/wk", "name": "Popularity" } ], "faq": [ { "answer": "OKX API scores 64.3 (B) on agent readiness against Bitfinex API's 58.4 (C), and leads in 5 of 7 scored categories. Bitfinex API leads on reliability and payments \u0026 pricing.", "question": "Which is better for AI agents, Bitfinex API or OKX API?" }, { "answer": "Both need an API key.", "question": "Do Bitfinex API and OKX API need an API key?" }, { "answer": "No hosted endpoint is listed for Bitfinex API. OKX API runs on your own machine, with no hosted endpoint listed.", "question": "Can an agent call Bitfinex API and OKX API without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 85 against 65", "Payments \u0026 pricing, 40 against 20" ], "also": null, "goodFor": "An agent trading spot, margin or derivatives, or lending on the funding market, with scoped keys, official clients and paper trading.", "slug": "bitfinex", "watchFor": "No official MCP server, OpenAPI file or AsyncAPI file; the registry's Bitfinex servers are third parties proxying public market data" }, { "aheadOn": [ "Schema \u0026 documentation, 73 against 48", "Agent ergonomics, 77 against 61", "Security \u0026 auth, 68 against 62", "Maintenance \u0026 community, 81 against 41", "Transparency \u0026 trust, 62 against 49" ], "also": [ "Runs on your own machine", "Free to start without a card" ], "goodFor": "An agent trading spot, perpetuals, futures or options on a person's OKX account from a local machine, with demo trading to test first and grid or DCA bots through the kit.", "slug": "okx", "watchFor": "The fee table loads by script and the fee FAQ defers to the logged-in view, so maker and taker rates were not read" } ], "history": null, "job": { "capability": "exchange.market-data", "name": "Exchange market data" }, "others": [ { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-bitget.json", "title": "Bitfinex API vs Bitget", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-bitget" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-bithumb.json", "title": "Bitfinex API vs Bithumb Open API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-bithumb" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-bitstamp.json", "title": "Bitfinex API vs Bitstamp API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-bitstamp" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-bybit.json", "title": "Bitfinex API vs Bybit", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-bybit" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-coinbase-advanced-trade.json", "title": "Bitfinex API vs Coinbase Advanced Trade API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-coinbase-advanced-trade" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-coinbase-mcp.json", "title": "Bitfinex API vs Coinbase MCP server (Coinbase for Agents)", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-coinbase-mcp" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-crypto-com-exchange.json", "title": "Bitfinex API vs Crypto.com Exchange API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-crypto-com-exchange" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-deribit.json", "title": "Bitfinex API vs Deribit", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-deribit" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-dydx.json", "title": "Bitfinex API vs dYdX", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-dydx" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-gate-io.json", "title": "Bitfinex API vs Gate", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-gate-io" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-gemini-exchange.json", "title": "Bitfinex API vs Gemini Exchange API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-gemini-exchange" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-htx.json", "title": "Bitfinex API vs HTX trading API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-htx" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-hyperliquid.json", "title": "Bitfinex API vs Hyperliquid", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-hyperliquid" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-kraken.json", "title": "Bitfinex API vs Kraken API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-kraken" }, { "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/bitfinex-vs-mexc.json", "title": "Bitfinex API vs MEXC API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-mexc" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-uniswap.json", "title": "Bitfinex API vs Uniswap Trading API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-uniswap" }, { "json": "https://www.anchorterminal.com/compare/bitfinex-vs-upbit.json", "title": "Bitfinex API vs Upbit Open API", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-upbit" }, { "json": "https://www.anchorterminal.com/compare/bitget-vs-okx.json", "title": "Bitget vs OKX API", "url": "https://www.anchorterminal.com/compare/bitget-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/bithumb-vs-okx.json", "title": "Bithumb Open API vs OKX API", "url": "https://www.anchorterminal.com/compare/bithumb-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/bitstamp-vs-okx.json", "title": "Bitstamp API vs OKX API", "url": "https://www.anchorterminal.com/compare/bitstamp-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/bybit-vs-okx.json", "title": "Bybit vs OKX API", "url": "https://www.anchorterminal.com/compare/bybit-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/crypto-com-exchange-vs-okx.json", "title": "Crypto.com Exchange API vs OKX API", "url": "https://www.anchorterminal.com/compare/crypto-com-exchange-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/gate-io-vs-okx.json", "title": "Gate vs OKX API", "url": "https://www.anchorterminal.com/compare/gate-io-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/gemini-exchange-vs-okx.json", "title": "Gemini Exchange API vs OKX API", "url": "https://www.anchorterminal.com/compare/gemini-exchange-vs-okx" }, { "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/kucoin-vs-okx.json", "title": "KuCoin vs OKX API", "url": "https://www.anchorterminal.com/compare/kucoin-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/mexc-vs-okx.json", "title": "MEXC API vs OKX API", "url": "https://www.anchorterminal.com/compare/mexc-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/binance-vs-bitfinex.json", "title": "Binance API vs Bitfinex API", "url": "https://www.anchorterminal.com/compare/binance-vs-bitfinex" }, { "json": "https://www.anchorterminal.com/compare/binance-vs-okx.json", "title": "Binance API vs OKX API", "url": "https://www.anchorterminal.com/compare/binance-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-okx.json", "title": "Coinbase Advanced Trade API vs OKX API", "url": "https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/coinbase-mcp-vs-okx.json", "title": "Coinbase MCP server (Coinbase for Agents) vs OKX API", "url": "https://www.anchorterminal.com/compare/coinbase-mcp-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/kraken-vs-okx.json", "title": "Kraken API vs OKX API", "url": "https://www.anchorterminal.com/compare/kraken-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/okx-vs-uniswap.json", "title": "OKX API vs Uniswap Trading API", "url": "https://www.anchorterminal.com/compare/okx-vs-uniswap" }, { "json": "https://www.anchorterminal.com/compare/okx-vs-upbit.json", "title": "OKX API vs Upbit Open API", "url": "https://www.anchorterminal.com/compare/okx-vs-upbit" }, { "json": "https://www.anchorterminal.com/compare/deribit-vs-okx.json", "title": "Deribit vs OKX API", "url": "https://www.anchorterminal.com/compare/deribit-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/dydx-vs-okx.json", "title": "dYdX vs OKX API", "url": "https://www.anchorterminal.com/compare/dydx-vs-okx" }, { "json": "https://www.anchorterminal.com/compare/hyperliquid-vs-okx.json", "title": "Hyperliquid vs OKX API", "url": "https://www.anchorterminal.com/compare/hyperliquid-vs-okx" } ], "panel": null, "scores": [ { "bitfinex": 85, "by": 20, "edge": "bitfinex", "key": "reliability", "name": "Reliability", "okx": 65, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "bitfinex": 48, "by": 25, "edge": "okx", "key": "schema", "name": "Schema \u0026 documentation", "okx": 73, "weight": 13 }, { "bitfinex": 61, "by": 16, "edge": "okx", "key": "ergonomics", "name": "Agent ergonomics", "okx": 77, "weight": 13 }, { "bitfinex": 62, "by": 6, "edge": "okx", "key": "security", "name": "Security \u0026 auth", "okx": 68, "weight": 14 }, { "bitfinex": 40, "by": 20, "edge": "bitfinex", "key": "payments", "name": "Payments \u0026 pricing", "okx": 20, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "bitfinex": 41, "by": 40, "edge": "okx", "key": "maintenance", "name": "Maintenance \u0026 community", "okx": 81, "weight": 7 }, { "bitfinex": 49, "by": 13, "edge": "okx", "key": "transparency", "name": "Transparency \u0026 trust", "okx": 62, "weight": 7 } ], "summary": "OKX API scores 64.3 (B) on agent readiness against Bitfinex API's 58.4 (C), and leads in 5 of 7 scored categories. Bitfinex API leads on reliability and payments \u0026 pricing. Both do exchange market data.", "tasks": null, "tutorials": [], "verdicts": { "bitfinex": "Bitfinex gives an agent scoped keys with a separate withdraw permission, paper-trading sub-accounts on the production API, llms.txt and official clients in four languages. There is no official MCP server, responses are positional arrays with empty error bodies, rate limits run 10 to 90 a minute per IP, and the terms, API terms and privacy statement could not be read.", "okx": "OKX publishes per-endpoint rate limits, Read, Trade and Withdraw key permissions with IP binding, demo trading on the production host, and an MIT MCP server with 170 tools, a read-only flag and a permission check at startup. The fee table and privacy policy were not read, no OpenAPI file was found, and the news tools return third-party text." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/bitfinex-vs-okx", "json": "https://www.anchorterminal.com/compare/bitfinex-vs-okx.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/bitfinex-vs-okx.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/bitfinex-vs-okx.min.md" }, "markdown": "OKX API scores 64.3 (B) on agent readiness against Bitfinex API's 58.4 (C), and leads in 5 of 7 scored categories. Bitfinex API leads on reliability and payments \u0026 pricing. Both do exchange market data.\n\n- Bitfinex API: grade C, 58.4/100, rank #687 of 1349. Markdown https://www.anchorterminal.com/tools/bitfinex.md · JSON https://www.anchorterminal.com/api/v1/tools/bitfinex.json\n- OKX API: grade B, 64.3/100, rank #413 of 1349. Markdown https://www.anchorterminal.com/tools/okx.md · JSON https://www.anchorterminal.com/api/v1/tools/okx.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### Bitfinex API (C)\n\nGood for: An agent trading spot, margin or derivatives, or lending on the funding market, with scoped keys, official clients and paper trading.\n\nAhead on:\n- Reliability, 85 against 65\n- Payments \u0026 pricing, 40 against 20\n\nWatch for: No official MCP server, OpenAPI file or AsyncAPI file; the registry's Bitfinex servers are third parties proxying public market data\n\n### OKX API (B)\n\nGood for: An agent trading spot, perpetuals, futures or options on a person's OKX account from a local machine, with demo trading to test first and grid or DCA bots through the kit.\n\nAhead on:\n- Schema \u0026 documentation, 73 against 48\n- Agent ergonomics, 77 against 61\n- Security \u0026 auth, 68 against 62\n- Maintenance \u0026 community, 81 against 41\n- Transparency \u0026 trust, 62 against 49\n\nAlso in its favour:\n- Runs on your own machine\n- Free to start without a card\n\nWatch for: The fee table loads by script and the fee FAQ defers to the logged-in view, so maker and taker rates were not read\n\n\n## Why the edge\n\n### Maintenance \u0026 community: OKX API +40\n\n- Bitfinex API (41): Read as a closed service with open clients. The last dated change we could read is bitfinex-api-node 9.1.0 on 18 July 2026, 108 days before the check; the docs changelog stops in October 2024 (10). Not three dated releases in the last 90 days (0). The bitfinexcom organisation pushes often (bfx-report on 3 November 2026) and the clients have issue trackers, but support articles answered 403 and no reply times were read (10 of 25). Official clients current in four languages, Node 9.1.0 of July 2026 and Python 4.0.0 of October 2025; not in the MCP registry (15). The Node client has a dependency history of security fixes (its last GitHub release notes name two) and no CI was read (6 of 10). 10 + 0 + 10 + 15 + 6 = 41.\n- OKX API (81): Read as a closed service with an open-source kit. Changelog entry of 27 October 2026 and kit v1.5.0 on 28 October (30). Changelog entries on 3, 6, 11, 18, 20 and 26 August, 15, 29 and 30 September and 27 October, and kit releases on 20 and 21 August, 1, 7, 14 and 23 September, 19 and 28 October (20). A public changelog, a Telegram community for the kit and GitHub issues whose replies were not read (10 of 15). python-okx is named as the official SDK and the kit is current; the MCP server is not in the official registry (12 of 15). The kit runs CI on push and pull request across Node 18, 20 and 26 with unit tests and coverage (9 of 10). 30 + 20 + 10 + 12 + 9 = 81.\n\n### Schema \u0026 documentation: OKX API +25\n\n- Bitfinex API (48): No OpenAPI or AsyncAPI file was found on docs.bitfinex.com, in llms.txt or in the client repositories (0). llms.txt and a .md twin of every docs page (10). Each reference page states the endpoint's purpose and fields, and the introduction says when to use api-pub against api, but nothing says when not to use an endpoint (14 of 20). Responses are positional arrays described in field tables, inputs are typed in prose with some enumerations (wallet names, order types) and required fields marked; the withdrawal CODE field is work in progress (7 of 15). Signed-request recipes in five languages, but authenticated errors are documented as 400 with an empty object and there is no error reference (9 of 15). Version v2 in the path and a dated changelog, whose last entry is October 2024 and whose v1 deprecation has no date (8 of 15). 0 + 10 + 14 + 7 + 9 + 8 = 48.\n- OKX API (73): No OpenAPI file was found in the V5 docs; the kit's tool definitions are typed TypeScript with annotations, and the organisation has an undescribed ai-builder-openapi-md repository we did not read (12 of 25). okx.com/llms.txt exists and links the API and Agent Trade Kit pages, though the V5 docs have no Markdown twins (5 of 10). Each endpoint states its rate limit, rule, parameters and notes (15 of 20). Enums for ordType, tdMode and instType with required flags (12 of 15). Request and response examples per endpoint and an error code list with messages (14 of 15). A dated changelog with an upcoming-changes section that labels breaking changes and dates sunsets (15). 12 + 5 + 15 + 12 + 14 + 15 = 73.\n\n### Reliability: Bitfinex API +20\n\n- Bitfinex API (85): Read with the hosted lines on the v2 API at api.bitfinex.com. bitfinex.statuspage.io is a Statuspage site with history back to May 2021 (20). Its feed has no entry between 25 March 2026 and 3 November 2026, so the last 90 days are clean on the record; the feed logs platform-wide outages only (a 14-hour maintenance in March 2026, a 3-hour outage in August 2025), so smaller incidents may go unrecorded. Judgement call (30). Rate limits with numbers, 10 to 90 a minute per IP and the WebSocket connection limits (15). `ERR_RATE_LIMIT` and the 60-second block are documented, with no Retry-After; orders take a `cid` but no idempotency key or retry guidance was found (10 of 15). No SLA found (0). Generally available (10). 20 + 30 + 15 + 10 + 0 + 10 = 85.\n- OKX API (65): Read with the hosted lines on the V5 REST API. okx.com/status is OKX's own page with issue descriptions, maintenance notices and deposit and withdrawal status, but no component history or feed (10 of 20). It lists no incident between 5 August and 3 November 2026; its newest entry is from March 2024, and whether every incident reaches the page cannot be told, so read as clean with a doubt (20 of 30). Rate limits per endpoint, per User ID and per sub-account with numbers, and WebSocket limits (15). Error 50011 on a limit, a clOrdId on orders and a cap of 3 amendments in flight, but no Retry-After or backoff guidance found (10 of 15). No SLA (0). Generally available (10). 10 + 20 + 15 + 10 + 0 + 10 = 65.\n\n### Payments \u0026 pricing: Bitfinex API +20\n\n- Bitfinex API (40): No machine payment protocol (0). The fees page is public without login (20), though it shows zero maker and taker with no tiers or date. The API is free, public endpoints need no account, and paper trading needs no money (20). A person must sign up in a browser with identity checks and mint the key (0). 0 + 20 + 20 + 0 = 40.\n- OKX API (20): No machine payment protocol (0). The fee table loads by script and the fee FAQ defers to the logged-in view, so no rate was read (0 of 20, unchecked). Public market data and demo trading need no funded account or card (20). A person signs up, verifies and mints a key (0). 0 + 0 + 20 + 0 = 20.\n\n### Agent ergonomics: OKX API +16\n\n- Bitfinex API (61): Graded on the REST API. Limits on trades, candles and book depth, and `pub:list` config endpoints keep responses small, but positional arrays make every field a lookup (14 of 25). `start`, `end`, `limit` and `sort` on history endpoints and per-symbol variants (16 of 20). `ERR_RATE_LIMIT` is actionable; authenticated 400s return `{}` and withdrawal status strings may change, so an agent cannot branch on causes (8 of 20). A client id on orders, order multi-op and cancel-multiple, but no idempotency key and no retry contract (8 of 20). Few required parameters and official clients in Node, Python, Go and Ruby (15). 14 + 16 + 8 + 8 + 15 = 61.\n- OKX API (77): limit parameters on books, candles and history, and in the kit --modules and --read-only narrow 170 tools to the three default modules; no field selection (17 of 25). after, before and limit cursors on history endpoints (18 of 20). Numeric codes with messages, such as 51020 for an invalid quantity, and the kit returns a structured error block with code, message and endpoint (17 of 20). clOrdId on orders, batch endpoints and a cap of 3 amendments in flight; the kit sets readOnlyHint on query tools but destructiveHint false on order tools and has no idempotency key (13 of 20). python-okx, the CLI and a demo profile, with passphrase and HMAC signing on every private call (12 of 15). 17 + 18 + 17 + 13 + 12 = 77.\n\n### Transparency \u0026 trust: OKX API +13\n\n- Bitfinex API (49): The editorial half. A closed service whose Exchange Terms and API Terms of Service loaded only navigation, so the licence terms are unknown; the clients are MIT and Apache-2.0 (8 of 30). The privacy statement loaded only navigation, so retention and data handling are unchecked (0 of 30). The docs say v1 will be deprecated \"at some point in the future\" with no date, and the Python client's 4.0.0 removed endpoints with a release note (5 of 20). Subprocessors and data locations are in the unread privacy statement (0). 8 + 0 + 5 + 0 = 13.\n- OKX API (62): The editorial half. A closed service with terms that name the contracting entities by region and an API Agreement for agents; the kit is MIT (17 of 30). The privacy policy was not read (5 of 30). The changelog dates sunsets and labels breaking changes, such as port 8443 on 31 October and 16 November 2026 (16 of 20). No subprocessor or data-location statement read; the MCP server is local and its npm package runs a postinstall script whose purpose we did not trace (0 of 20). 17 + 5 + 16 + 0 = 38.\n\n## Score by category\n\n| Category | Weight | Bitfinex API | OKX API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 85 | 65 | Bitfinex API +20 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 48 | 73 | OKX API +25 |\n| Agent ergonomics | 13% (16.2 this run) | 61 | 77 | OKX API +16 |\n| Security \u0026 auth | 14% (17.5 this run) | 62 | 68 | OKX API +6 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 20 | Bitfinex API +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 41 | 81 | OKX API +40 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 49 | 62 | OKX API +13 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **58.4 · C** | **64.3 · B** | |\n\n## Facts side by side\n\n| Fact | Bitfinex API | OKX API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | iFinex Inc. | OKX |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | | stdio |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | Proprietary hosted API under Bitfinex's API Terms of Service, which our reader couldn't load. The official client libraries (Node, Python, Go, Ruby) are MIT or Apache-2.0 | Proprietary hosted service under OKX's Terms of Service (29 October 2026) and API Agreement (28 July 2026). The Agent Trade Kit (MCP server, CLI and skills) is MIT |\n| Tools exposed | none | 170 |\n| Read-only variant documented | no | yes |\n| llms.txt | yes | yes |\n| Last release | 2026-07-18 | 2026-10-28 |\n| Terms last updated | couldn't be read | 2026-10-29 |\n| Privacy policy last updated | couldn't be read | couldn't be read |\n| Customer content may train models | couldn't be read | not found in the text |\n| Terms restrict automated access | couldn't be read | not found in the text |\n| Terms restrict benchmarking | couldn't be read | not found in the text |\n| Terms or service can change without notice | couldn't be read | yes |\n| Arbitration or class-action waiver | couldn't be read | yes |\n| Popularity | 480 stars | 499 stars, 1.8k npm/wk |\n\n## Verdicts\n\n**Bitfinex API.** Bitfinex gives an agent scoped keys with a separate withdraw permission, paper-trading sub-accounts on the production API, llms.txt and official clients in four languages. There is no official MCP server, responses are positional arrays with empty error bodies, rate limits run 10 to 90 a minute per IP, and the terms, API terms and privacy statement could not be read.\n\n**OKX API.** OKX publishes per-endpoint rate limits, Read, Trade and Withdraw key permissions with IP binding, demo trading on the production host, and an MIT MCP server with 170 tools, a read-only flag and a permission check at startup. The fee table and privacy policy were not read, no OpenAPI file was found, and the news tools return third-party text.\n\n## Before you call either\n\n### Bitfinex API\n\n1. Mint a key with read on the scopes the task needs and write only on `orders`; never grant `withdraw` to a trading key, and bind the key to known IPs\n2. Use one key per client process, since each key keeps its own strictly increasing nonce and a reused nonce is rejected\n3. Rehearse on a paper-trading sub-account with the TEST symbols before touching real balances; the sub-account cannot be converted later\n4. Plan requests against the per-endpoint limit of 10 to 90 a minute per IP; `ERR_RATE_LIMIT` blocks the IP for 60 seconds with no Retry-After\n5. Map each response by position from the docs' field tables and set a `cid` on orders, because responses are arrays and a 400 carries no reason\n\n### OKX API\n\n1. Start okx-trade-mcp with --profile demo first, then --read-only on a live key; load only the modules the task needs\n2. Use a sub-account key with Read and Trade only, bound to the agent's IP; an unbound Trade key expires after 14 idle days\n3. Stay under 60 place-order requests per 2 seconds per instrument and at most 3 amendments in flight per order; 50011 means the limit was hit\n4. Send a clOrdId on every order and use the structured error block (code, message, endpoint) to diagnose with read-only tools before retrying\n5. Call us.okx.com or eea.okx.com for US, Australian and EEA accounts; openapi.okx.com does not serve those regions\n\n## Questions\n\n### Which is better for AI agents, Bitfinex API or OKX API?\n\nOKX API scores 64.3 (B) on agent readiness against Bitfinex API's 58.4 (C), and leads in 5 of 7 scored categories. Bitfinex API leads on reliability and payments \u0026 pricing.\n\n### Do Bitfinex API and OKX API need an API key?\n\nBoth need an API key.\n\n### Can an agent call Bitfinex API and OKX API without installing anything?\n\nNo hosted endpoint is listed for Bitfinex API. OKX API runs on your own machine, with no hosted endpoint listed.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/bitfinex-vs-okx.json, and with the fewest tokens: https://www.anchorterminal.com/compare/bitfinex-vs-okx.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"bitfinex\", \"b\": \"okx\"}`. From a terminal: `anchor compare bitfinex okx`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/bitfinex.json and https://www.anchorterminal.com/api/v1/tools/okx.json\n\n## Other comparisons with Bitfinex API or OKX API\n\n- [Bitfinex API vs Bitget](https://www.anchorterminal.com/compare/bitfinex-vs-bitget.md)\n- [Bitfinex API vs Bithumb Open API](https://www.anchorterminal.com/compare/bitfinex-vs-bithumb.md)\n- [Bitfinex API vs Bitstamp API](https://www.anchorterminal.com/compare/bitfinex-vs-bitstamp.md)\n- [Bitfinex API vs Bybit](https://www.anchorterminal.com/compare/bitfinex-vs-bybit.md)\n- [Bitfinex API vs Coinbase Advanced Trade API](https://www.anchorterminal.com/compare/bitfinex-vs-coinbase-advanced-trade.md)\n- [Bitfinex API vs Coinbase MCP server (Coinbase for Agents)](https://www.anchorterminal.com/compare/bitfinex-vs-coinbase-mcp.md)\n- [Bitfinex API vs Crypto.com Exchange API](https://www.anchorterminal.com/compare/bitfinex-vs-crypto-com-exchange.md)\n- [Bitfinex API vs Deribit](https://www.anchorterminal.com/compare/bitfinex-vs-deribit.md)\n- [Bitfinex API vs dYdX](https://www.anchorterminal.com/compare/bitfinex-vs-dydx.md)\n- [Bitfinex API vs Gate](https://www.anchorterminal.com/compare/bitfinex-vs-gate-io.md)\n- [Bitfinex API vs Gemini Exchange API](https://www.anchorterminal.com/compare/bitfinex-vs-gemini-exchange.md)\n- [Bitfinex API vs HTX trading API](https://www.anchorterminal.com/compare/bitfinex-vs-htx.md)\n- [Bitfinex API vs Hyperliquid](https://www.anchorterminal.com/compare/bitfinex-vs-hyperliquid.md)\n- [Bitfinex API vs Kraken API](https://www.anchorterminal.com/compare/bitfinex-vs-kraken.md)\n- [Bitfinex API vs KuCoin](https://www.anchorterminal.com/compare/bitfinex-vs-kucoin.md)\n- [Bitfinex API vs MEXC API](https://www.anchorterminal.com/compare/bitfinex-vs-mexc.md)\n- [Bitfinex API vs Uniswap Trading API](https://www.anchorterminal.com/compare/bitfinex-vs-uniswap.md)\n- [Bitfinex API vs Upbit Open API](https://www.anchorterminal.com/compare/bitfinex-vs-upbit.md)\n- [Bitget vs OKX API](https://www.anchorterminal.com/compare/bitget-vs-okx.md)\n- [Bithumb Open API vs OKX API](https://www.anchorterminal.com/compare/bithumb-vs-okx.md)\n- [Bitstamp API vs OKX API](https://www.anchorterminal.com/compare/bitstamp-vs-okx.md)\n- [Bybit vs OKX API](https://www.anchorterminal.com/compare/bybit-vs-okx.md)\n- [Crypto.com Exchange API vs OKX API](https://www.anchorterminal.com/compare/crypto-com-exchange-vs-okx.md)\n- [Gate vs OKX API](https://www.anchorterminal.com/compare/gate-io-vs-okx.md)\n- [Gemini Exchange API vs OKX API](https://www.anchorterminal.com/compare/gemini-exchange-vs-okx.md)\n- [HTX trading API vs OKX API](https://www.anchorterminal.com/compare/htx-vs-okx.md)\n- [KuCoin vs OKX API](https://www.anchorterminal.com/compare/kucoin-vs-okx.md)\n- [MEXC API vs OKX API](https://www.anchorterminal.com/compare/mexc-vs-okx.md)\n- [Binance API vs Bitfinex API](https://www.anchorterminal.com/compare/binance-vs-bitfinex.md)\n- [Binance API vs OKX API](https://www.anchorterminal.com/compare/binance-vs-okx.md)\n- [Coinbase Advanced Trade API vs OKX API](https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-okx.md)\n- [Coinbase MCP server (Coinbase for Agents) vs OKX API](https://www.anchorterminal.com/compare/coinbase-mcp-vs-okx.md)\n- [Kraken API vs OKX API](https://www.anchorterminal.com/compare/kraken-vs-okx.md)\n- [OKX API vs Uniswap Trading API](https://www.anchorterminal.com/compare/okx-vs-uniswap.md)\n- [OKX API vs Upbit Open API](https://www.anchorterminal.com/compare/okx-vs-upbit.md)\n- [Deribit vs OKX API](https://www.anchorterminal.com/compare/deribit-vs-okx.md)\n- [dYdX vs OKX API](https://www.anchorterminal.com/compare/dydx-vs-okx.md)\n- [Hyperliquid vs OKX API](https://www.anchorterminal.com/compare/hyperliquid-vs-okx.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-04", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Bitfinex API vs OKX API", "url": "" } ], "description": "OKX scores 64.3 (B) to Bitfinex's 58.4 (C) for exchange market data. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Bitfinex API C 58.4", "OKX API B 64.3", "scores" ], "h1": "Bitfinex API vs OKX API", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/bitfinex-vs-okx", "published": "2026-10-01", "section": "tools", "title": "Bitfinex vs OKX for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-11-03", "url": "https://www.anchorterminal.com/compare/bitfinex-vs-okx" }, "tokens": { "markdown": 4850, "slim": 2730 }, "version": 1 }