{
  "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": 675,
        "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": "2026-11-04T21:25:16.420431998Z"
        },
        "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": "2026-11-04T21:25:16.420431998Z"
      }
    },
    "answer": "Deribit and Bitfinex API score within a point of each other on agent readiness, 59 (C) and 58.4 (C). Bitfinex API leads on reliability and payments \u0026 pricing.",
    "b": {
      "slug": "deribit",
      "name": "Deribit",
      "vendor": "Deribit FZE",
      "vendorUrl": "https://www.deribit.com",
      "kind": "http-api",
      "category": "crypto-exchanges",
      "summary": "Deribit is a crypto options, futures and perpetuals exchange owned by Coinbase, with a JSON-RPC API over WebSocket and HTTP, a FIX API and a test environment at test.deribit.com.",
      "url": "https://www.anchorterminal.com/tools/deribit",
      "markdownUrl": "https://www.anchorterminal.com/tools/deribit.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/deribit.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/deribit.json",
      "dns": "deribit.grade.anchorterminal.com",
      "license": "Proprietary hosted exchange. The API is documented under the Deribit docs with an OpenAPI 3.0 file; no official client library is published",
      "transports": [],
      "packages": [],
      "auth": "api-key",
      "authNotes": "API keys are made in the account settings or with `private/create_api_key`, each with scopes `account`, `trade`, `wallet`, `block_trade` and `block_rfq` at `read`, `read_write` or `none`, plus `ip:ADDR` and `expires` limits. Tokens come from `public/auth` by `client_credentials` (key and secret), `client_signature` (HMAC-SHA256 over timestamp, nonce and data, so the secret never travels) or `refresh_token`. Self-generated Ed25519 or RSA keys let Deribit hold only the public half. The HTTP example passes `client_secret` in the query string (https://docs.deribit.com/articles/authentication, https://docs.deribit.com/articles/access-scope, checked 2026-11-03).",
      "pricing": "usage",
      "pricingNotes": "The API has no charge of its own; trades pay maker and taker fees per instrument. The fee schedule is on support.deribit.com, which answered our reader with 403, so the lowest-tier rates are unchecked. Deribit's own posts of 14 October and 2 November 2026 give VIP4 to VIP7 taker fees of 1.75 to 1.40 bps on perpetuals and futures from 19 October 2026, and 0 bps maker fees on USDC-settled linear daily options from 5 November 2026 (https://insights.deribit.com/exchange-updates/new-fee-tier-on-perpetuals-and-futures/, checked 2026-11-03).",
      "priceSummary": "0.02% fee",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the API docs, the OpenAPI file or the articles index (checked 2026-11-03). Accounts are funded by crypto deposit after a browser signup.",
        "endpoints": []
      },
      "toolCount": 0,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-11-03"
      },
      "docsUrl": "https://docs.deribit.com/",
      "llmsTxt": "https://docs.deribit.com/llms.txt",
      "openapi": "https://docs.deribit.com/specifications/deribit_openapi.json",
      "capabilities": [
        "exchange.derivatives",
        "exchange.market-data",
        "exchange.spot-trading",
        "exchange.balances",
        "exchange.transfers",
        "market.crypto"
      ],
      "tags": [
        "official",
        "hosted",
        "closed-source",
        "openapi",
        "llms-txt",
        "api-key",
        "sandbox",
        "usage-priced",
        "no-status-page",
        "bug-bounty",
        "rest"
      ],
      "lastRelease": "2026-10-13",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 59,
        "grade": "C",
        "agentReady": false,
        "rank": 646,
        "ranked": true,
        "rankOf": 1349,
        "categoryRank": 9,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 74,
          "maintenance": 65,
          "payments": 25,
          "reliability": 45,
          "schema": 88,
          "security": 62,
          "transparency": 46
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "low",
          "date": "2026-11-03"
        },
        "negative": 0,
        "verdict": "Deribit's JSON-RPC API has scoped keys with IP and expiry limits, asymmetric signing, an OpenAPI file, numeric rate limits and a 64-entry changelog. There is no official MCP server or client library, the fee schedule, terms and privacy policy sit on a support site that refused our reader, and the status page did not resolve.",
        "bestFor": "An agent trading crypto options, dated futures and perpetuals for an institutional or retail Deribit account, and anyone migrated from Coinbase International Exchange.",
        "strengths": [
          "Keys carry `account`, `trade`, `wallet`, `block_trade` and `block_rfq` scopes at read, read_write or none, with `ip:ADDR` and `expires` limits, and Ed25519 or RSA keys keep the private half off Deribit",
          "OpenAPI 3.0 and AsyncAPI files, llms.txt indexes and Markdown twins for every reference page",
          "Credit-based rate limits with numbers, per sub-account, and an errors page of about 159 codes with retry guidance (10028 back off, 10040 retry, 13009 refresh)",
          "A separate test environment at test.deribit.com with the same API and its own accounts and keys",
          "A dated JSON-RPC changelog since 2020 and an upcoming docs branch that previews the next release"
        ],
        "weaknesses": [
          "No official MCP server, and the GitHub organisation has no public repositories, so no official SDK in any language",
          "The fee schedule, terms of service, privacy policy and restricted-jurisdictions list are on support.deribit.com, which answered 403, so the lowest-tier maker and taker fees are unchecked",
          "status.deribit.com did not resolve for our reader and Coinbase's status page has no Deribit component we could find, so the incident record is unchecked",
          "The HTTP authentication example sends `client_secret` in the query string",
          "Breaking changes such as the 15 September 2026 change to `user.changes` carry no notice period in the changelog"
        ],
        "agentNotes": [
          "Create the key with `trade:read_write` and `wallet:none`, an `ip:` limit and an `expires` value; keep `account:read` unless the task edits subaccounts",
          "Authenticate with `client_signature` or an Ed25519 key over WebSocket rather than `client_credentials` over HTTP, which puts the secret in the URL",
          "Watch the `limits` field of `private/get_account_summary` and back off on error 10028; a session that runs out of credits is closed and must reconnect",
          "Send a `nonce` with orders so a retry after a timeout does not place a second order, and treat `order_not_found` on cancel as a possible fill",
          "Develop against https://test.deribit.com/api/v2 first; production and test need separate accounts and keys"
        ],
        "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": 59
          }
        ],
        "editorialScores": {
          "ergonomics": 74,
          "maintenance": 65,
          "payments": 25,
          "reliability": 45,
          "schema": 88,
          "security": 62,
          "transparency": 22
        },
        "provenanceScore": 69,
        "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://test.deribit.com/api/v2/public/get_order_book?instrument_name=BTC-PERPETUAL\u0026depth=5'"
      },
      "letme": {
        "capability": "https://letme.dev/exchange.derivatives",
        "tool": "https://letme.dev/deribit"
      },
      "area": "payments",
      "unitPrices": [
        {
          "item": "Perpetual and futures taker fee, VIP4 tier",
          "unit": "pct",
          "usd": 0.0175,
          "note": "1.75 bps from 19 October 2026 per Deribit's post of 14 October 2026. Base-tier fees unchecked"
        }
      ],
      "provenance": {
        "legalEntity": "Deribit FZE",
        "domain": "deribit.com",
        "domainRegistered": "2014-01-15",
        "endpointOnVendorDomain": true,
        "terms": "https://support.deribit.com/hc/en-us/articles/25944532191645-Deribit-Exchange-Membership-Terms-Deribit-FZE",
        "privacy": "",
        "statusPage": "",
        "changelog": "https://docs.deribit.com/changelogs/jsonrpc",
        "securityTxt": "unknown",
        "checked": "2026-11-03",
        "notes": [
          "Deribit FZE is on VARA's public register, licence VL/23/12/002, active, issued 1 November 2024. Deribit's own post of 29 November 2024 says institutional and qualified investors contract with Deribit FZE and retail clients with DRB Panama, a broker member.",
          "The terms URL comes from a search result title (Deribit Exchange Membership Terms, Deribit FZE, version 26 January 2026); support.deribit.com answered 403 to our reader, so the terms, the privacy policy and the fee and restricted-jurisdictions articles were not read.",
          "RDAP gives deribit.com a registration date of 15 January 2014, registrar MarkMonitor.",
          "status.deribit.com did not resolve on 3 November 2026 and Coinbase's status page showed no Deribit component or incident, so no status page is recorded.",
          "https://www.deribit.com/.well-known/security.txt answered an HTML page with only the site title, so security.txt is unknown. Deribit's bug bounty runs on HackerOne per the support article title and HackerOne's customer story; insights.deribit.com/bug-bounty answered 403.",
          "docs.deribit.com/robots.txt allows everything but /cdn-cgi/ and /_next/, with Content-Signal ai-input=yes. support.deribit.com's robots.txt allows article pages; the 403 is the site's answer, not a robots rule."
        ],
        "score": 69
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/deribit.json",
      "live": {
        "slug": "deribit",
        "securityTxt": {
          "url": "https://deribit.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-11-04T15:54:13.971728133Z"
        },
        "updatedAt": "2026-11-04T15:54:13.971728133Z"
      }
    },
    "edges": [
      {
        "by": 40,
        "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 JSON-RPC API. status.deribit.com did not resolve for our reader on 3 November 2026 and Coinbase's status page showed no Deribit component, so no status page is scored, with the unchecked line below (0). No readable history (5). Rate limits are documented with numbers, 50,000 credits per sub-account refilled at 10,000 a second, and matching-engine tiers of 5 to 30 requests a second by 7-day volume (15). Error 10028 ends the session and the errors page says to back off exponentially; 10040 means retry; the 6 May 2026 release added a `nonce` for idempotent orders (15). No SLA found (0). The API is generally available; only Starbase is limited to selected clients (10). 0 + 5 + 15 + 15 + 0 + 10 = 45."
        },
        "scores": {
          "a": 85,
          "b": 45
        }
      },
      {
        "by": 40,
        "category": "schema",
        "leads": "deribit",
        "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": "OpenAPI 3.0.0 for the whole JSON-RPC surface (Deribit API 2.1.1, about 1.4 million characters) plus AsyncAPI files for the WebSocket side (25). llms.txt with production and upcoming indexes, and a Markdown twin of every page (10). Each operation has a description such as \"Places a buy order for an instrument.\" with parameter notes, and the articles say when to use WebSocket subscriptions over polling, but the reference seldom says when not to use a method (13 of 20). Parameters are typed with enums (order `type` has eight values, `time_in_force` four) and required flags, with `amount` or `contracts` as a documented either-or (13 of 15). Every reference page carries an example request and response, and the errors page lists about 159 codes with retry guidance, though most operations document only a 200 response and the smaller error tables disagree with the full one on two codes (12 of 15). A versioned path (/api/v2), a production and an upcoming docs branch, and a dated changelog of 64 entries since 21 January 2020 (15). Total 88."
        },
        "scores": {
          "a": 48,
          "b": 88
        }
      },
      {
        "by": 24,
        "category": "maintenance",
        "leads": "deribit",
        "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. The JSON-RPC changelog's latest production entry is 13 October 2026 and an entry dated 5 November 2026 describes the next release; Deribit's posts of 14 October and 2 November 2026 change fees (30). Entries of 18 August, 15 September and 13 October 2026, three in 90 days (20). A public changelog and a support site; whether support answers wasn't tested and the support site refused our reader (10 of 15). No official SDK and no MCP registry entry (0). The OpenAPI and AsyncAPI files are maintained with the docs (5 of 10). Total 65."
        },
        "scores": {
          "a": 41,
          "b": 65
        }
      },
      {
        "by": 15,
        "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 schedule is on support.deribit.com, which answered 403; Deribit's own posts give VIP4 to VIP7 taker fees and the 0 bps linear options maker fee, so partial prices are public but the lowest tier is unchecked (5 of 20). Public market data needs no key and the test environment is free, with no card anywhere (20). A person signs up in a browser with identity checks before any key exists (0). Total 25."
        },
        "scores": {
          "a": 40,
          "b": 25
        }
      },
      {
        "by": 13,
        "category": "ergonomics",
        "leads": "deribit",
        "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": "An API, read for response sizing. `public/get_order_book` takes `depth`, `get_instruments` filters by currency and kind, and history methods take `count` and `offset`, though `get_instruments` returns every instrument for a currency and costs 10,000 credits (18 of 25). Count and offset pagination, time ranges on trade and transaction logs, and WebSocket channels with interval and depth options (16 of 20). Numeric error codes with short names, a `wait` value on some errors, and sample code that branches on them (18 of 20). A `nonce` on orders since May 2026 returns the existing order on retry, a `label` lets an agent find its own orders, and 10040 marks the calls safe to retry; no MCP annotations apply (16 of 20). Few required parameters and sensible defaults (limit and good_til_cancelled), but no official SDK in any language, so every caller signs and frames JSON-RPC itself (6 of 15). Total 74."
        },
        "scores": {
          "a": 61,
          "b": 74
        }
      }
    ],
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "iFinex Inc.",
        "b": "Deribit FZE",
        "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": "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 exchange. The API is documented under the Deribit docs with an OpenAPI 3.0 file; no official client library is published",
        "name": "Licence"
      },
      {
        "a": "none",
        "b": "0",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-07-18",
        "b": "2026-10-13",
        "name": "Last release"
      },
      {
        "a": "couldn't be read",
        "b": "2026-08-13",
        "name": "Terms last updated"
      },
      {
        "a": "couldn't be read",
        "b": "no document linked",
        "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": "yes",
        "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": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "couldn't be read",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "480 stars",
        "b": "none",
        "name": "Popularity"
      }
    ],
    "faq": [
      {
        "answer": "Deribit and Bitfinex API score within a point of each other on agent readiness, 59 (C) and 58.4 (C). Bitfinex API leads on reliability and payments \u0026 pricing.",
        "question": "Which is better for AI agents, Bitfinex API or Deribit?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do Bitfinex API and Deribit need an API key?"
      },
      {
        "answer": "No hosted endpoint is listed for Bitfinex API. No hosted endpoint is listed for Deribit.",
        "question": "Can an agent call Bitfinex API and Deribit without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 85 against 45",
          "Payments \u0026 pricing, 40 against 25"
        ],
        "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, 88 against 48",
          "Agent ergonomics, 74 against 61",
          "Maintenance \u0026 community, 65 against 41"
        ],
        "also": null,
        "goodFor": "An agent trading crypto options, dated futures and perpetuals for an institutional or retail Deribit account, and anyone migrated from Coinbase International Exchange.",
        "slug": "deribit",
        "watchFor": "No official MCP server, and the GitHub organisation has no public repositories, so no official SDK in any language"
      }
    ],
    "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-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-okx.json",
        "title": "Bitfinex API vs OKX API",
        "url": "https://www.anchorterminal.com/compare/bitfinex-vs-okx"
      },
      {
        "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-deribit.json",
        "title": "Bitget vs Deribit",
        "url": "https://www.anchorterminal.com/compare/bitget-vs-deribit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bithumb-vs-deribit.json",
        "title": "Bithumb Open API vs Deribit",
        "url": "https://www.anchorterminal.com/compare/bithumb-vs-deribit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bitstamp-vs-deribit.json",
        "title": "Bitstamp API vs Deribit",
        "url": "https://www.anchorterminal.com/compare/bitstamp-vs-deribit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bybit-vs-deribit.json",
        "title": "Bybit vs Deribit",
        "url": "https://www.anchorterminal.com/compare/bybit-vs-deribit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/crypto-com-exchange-vs-deribit.json",
        "title": "Crypto.com Exchange API vs Deribit",
        "url": "https://www.anchorterminal.com/compare/crypto-com-exchange-vs-deribit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deribit-vs-upbit.json",
        "title": "Deribit vs Upbit Open API",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-upbit"
      },
      {
        "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-deribit.json",
        "title": "Binance API vs Deribit",
        "url": "https://www.anchorterminal.com/compare/binance-vs-deribit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-deribit.json",
        "title": "Coinbase Advanced Trade API vs Deribit",
        "url": "https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-deribit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/coinbase-mcp-vs-deribit.json",
        "title": "Coinbase MCP server (Coinbase for Agents) vs Deribit",
        "url": "https://www.anchorterminal.com/compare/coinbase-mcp-vs-deribit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deribit-vs-uniswap.json",
        "title": "Deribit vs Uniswap Trading API",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-uniswap"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deribit-vs-dydx.json",
        "title": "Deribit vs dYdX",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-dydx"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deribit-vs-gate-io.json",
        "title": "Deribit vs Gate",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-gate-io"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deribit-vs-gemini-exchange.json",
        "title": "Deribit vs Gemini Exchange API",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-gemini-exchange"
      },
      {
        "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-hyperliquid.json",
        "title": "Deribit vs Hyperliquid",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-hyperliquid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deribit-vs-kraken.json",
        "title": "Deribit vs Kraken API",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-kraken"
      },
      {
        "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/deribit-vs-mexc.json",
        "title": "Deribit vs MEXC API",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-mexc"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deribit-vs-okx.json",
        "title": "Deribit vs OKX API",
        "url": "https://www.anchorterminal.com/compare/deribit-vs-okx"
      }
    ],
    "panel": null,
    "scores": [
      {
        "bitfinex": 85,
        "by": 40,
        "deribit": 45,
        "edge": "bitfinex",
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "bitfinex": 48,
        "by": 40,
        "deribit": 88,
        "edge": "deribit",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "bitfinex": 61,
        "by": 13,
        "deribit": 74,
        "edge": "deribit",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "bitfinex": 62,
        "by": 0,
        "deribit": 62,
        "edge": "",
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "bitfinex": 40,
        "by": 15,
        "deribit": 25,
        "edge": "bitfinex",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "bitfinex": 41,
        "by": 24,
        "deribit": 65,
        "edge": "deribit",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "bitfinex": 49,
        "by": 3,
        "deribit": 46,
        "edge": "bitfinex",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Deribit and Bitfinex API score within a point of each other on agent readiness, 59 (C) and 58.4 (C). 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.",
      "deribit": "Deribit's JSON-RPC API has scoped keys with IP and expiry limits, asymmetric signing, an OpenAPI file, numeric rate limits and a 64-entry changelog. There is no official MCP server or client library, the fee schedule, terms and privacy policy sit on a support site that refused our reader, and the status page did not resolve."
    }
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/bitfinex-vs-deribit",
    "json": "https://www.anchorterminal.com/compare/bitfinex-vs-deribit.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
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  "markdown": "Deribit and Bitfinex API score within a point of each other on agent readiness, 59 (C) and 58.4 (C). Bitfinex API leads on reliability and payments \u0026 pricing. Both do exchange market data.\n\n- Bitfinex API: grade C, 58.4/100, rank #675 of 1349. Markdown https://www.anchorterminal.com/tools/bitfinex.md · JSON https://www.anchorterminal.com/api/v1/tools/bitfinex.json\n- Deribit: grade C, 59/100, rank #646 of 1349. Markdown https://www.anchorterminal.com/tools/deribit.md · JSON https://www.anchorterminal.com/api/v1/tools/deribit.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 45\n- Payments \u0026 pricing, 40 against 25\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### Deribit (C)\n\nGood for: An agent trading crypto options, dated futures and perpetuals for an institutional or retail Deribit account, and anyone migrated from Coinbase International Exchange.\n\nAhead on:\n- Schema \u0026 documentation, 88 against 48\n- Agent ergonomics, 74 against 61\n- Maintenance \u0026 community, 65 against 41\n\nWatch for: No official MCP server, and the GitHub organisation has no public repositories, so no official SDK in any language\n\n\n## Why the edge\n\n### Reliability: Bitfinex API +40\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- Deribit (45): Read with the hosted lines on the JSON-RPC API. status.deribit.com did not resolve for our reader on 3 November 2026 and Coinbase's status page showed no Deribit component, so no status page is scored, with the unchecked line below (0). No readable history (5). Rate limits are documented with numbers, 50,000 credits per sub-account refilled at 10,000 a second, and matching-engine tiers of 5 to 30 requests a second by 7-day volume (15). Error 10028 ends the session and the errors page says to back off exponentially; 10040 means retry; the 6 May 2026 release added a `nonce` for idempotent orders (15). No SLA found (0). The API is generally available; only Starbase is limited to selected clients (10). 0 + 5 + 15 + 15 + 0 + 10 = 45.\n\n### Schema \u0026 documentation: Deribit +40\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- Deribit (88): OpenAPI 3.0.0 for the whole JSON-RPC surface (Deribit API 2.1.1, about 1.4 million characters) plus AsyncAPI files for the WebSocket side (25). llms.txt with production and upcoming indexes, and a Markdown twin of every page (10). Each operation has a description such as \"Places a buy order for an instrument.\" with parameter notes, and the articles say when to use WebSocket subscriptions over polling, but the reference seldom says when not to use a method (13 of 20). Parameters are typed with enums (order `type` has eight values, `time_in_force` four) and required flags, with `amount` or `contracts` as a documented either-or (13 of 15). Every reference page carries an example request and response, and the errors page lists about 159 codes with retry guidance, though most operations document only a 200 response and the smaller error tables disagree with the full one on two codes (12 of 15). A versioned path (/api/v2), a production and an upcoming docs branch, and a dated changelog of 64 entries since 21 January 2020 (15). Total 88.\n\n### Maintenance \u0026 community: Deribit +24\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- Deribit (65): Read as a closed service. The JSON-RPC changelog's latest production entry is 13 October 2026 and an entry dated 5 November 2026 describes the next release; Deribit's posts of 14 October and 2 November 2026 change fees (30). Entries of 18 August, 15 September and 13 October 2026, three in 90 days (20). A public changelog and a support site; whether support answers wasn't tested and the support site refused our reader (10 of 15). No official SDK and no MCP registry entry (0). The OpenAPI and AsyncAPI files are maintained with the docs (5 of 10). Total 65.\n\n### Payments \u0026 pricing: Bitfinex API +15\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- Deribit (25): No machine payment protocol (0). The fee schedule is on support.deribit.com, which answered 403; Deribit's own posts give VIP4 to VIP7 taker fees and the 0 bps linear options maker fee, so partial prices are public but the lowest tier is unchecked (5 of 20). Public market data needs no key and the test environment is free, with no card anywhere (20). A person signs up in a browser with identity checks before any key exists (0). Total 25.\n\n### Agent ergonomics: Deribit +13\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- Deribit (74): An API, read for response sizing. `public/get_order_book` takes `depth`, `get_instruments` filters by currency and kind, and history methods take `count` and `offset`, though `get_instruments` returns every instrument for a currency and costs 10,000 credits (18 of 25). Count and offset pagination, time ranges on trade and transaction logs, and WebSocket channels with interval and depth options (16 of 20). Numeric error codes with short names, a `wait` value on some errors, and sample code that branches on them (18 of 20). A `nonce` on orders since May 2026 returns the existing order on retry, a `label` lets an agent find its own orders, and 10040 marks the calls safe to retry; no MCP annotations apply (16 of 20). Few required parameters and sensible defaults (limit and good_til_cancelled), but no official SDK in any language, so every caller signs and frames JSON-RPC itself (6 of 15). Total 74.\n\n## Score by category\n\n| Category | Weight | Bitfinex API | Deribit | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 85 | 45 | Bitfinex API +40 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 48 | 88 | Deribit +40 |\n| Agent ergonomics | 13% (16.2 this run) | 61 | 74 | Deribit +13 |\n| Security \u0026 auth | 14% (17.5 this run) | 62 | 62 | even |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 25 | Bitfinex API +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 41 | 65 | Deribit +24 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 49 | 46 | Bitfinex API +3 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **58.4 · C** | **59 · C** | |\n\n## Facts side by side\n\n| Fact | Bitfinex API | Deribit |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | iFinex Inc. | Deribit FZE |\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| 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 exchange. The API is documented under the Deribit docs with an OpenAPI 3.0 file; no official client library is published |\n| Tools exposed | none | 0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-07-18 | 2026-10-13 |\n| Terms last updated | couldn't be read | 2026-08-13 |\n| Privacy policy last updated | couldn't be read | no document linked |\n| Customer content may train models | couldn't be read | not found in the text |\n| Terms restrict automated access | couldn't be read | yes |\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 | not found in the text |\n| Arbitration or class-action waiver | couldn't be read | not found in the text |\n| Popularity | 480 stars | none |\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**Deribit.** Deribit's JSON-RPC API has scoped keys with IP and expiry limits, asymmetric signing, an OpenAPI file, numeric rate limits and a 64-entry changelog. There is no official MCP server or client library, the fee schedule, terms and privacy policy sit on a support site that refused our reader, and the status page did not resolve.\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### Deribit\n\n1. Create the key with `trade:read_write` and `wallet:none`, an `ip:` limit and an `expires` value; keep `account:read` unless the task edits subaccounts\n2. Authenticate with `client_signature` or an Ed25519 key over WebSocket rather than `client_credentials` over HTTP, which puts the secret in the URL\n3. Watch the `limits` field of `private/get_account_summary` and back off on error 10028; a session that runs out of credits is closed and must reconnect\n4. Send a `nonce` with orders so a retry after a timeout does not place a second order, and treat `order_not_found` on cancel as a possible fill\n5. Develop against https://test.deribit.com/api/v2 first; production and test need separate accounts and keys\n\n## Questions\n\n### Which is better for AI agents, Bitfinex API or Deribit?\n\nDeribit and Bitfinex API score within a point of each other on agent readiness, 59 (C) and 58.4 (C). Bitfinex API leads on reliability and payments \u0026 pricing.\n\n### Do Bitfinex API and Deribit need an API key?\n\nBoth need an API key.\n\n### Can an agent call Bitfinex API and Deribit without installing anything?\n\nNo hosted endpoint is listed for Bitfinex API. No hosted endpoint is listed for Deribit.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/bitfinex-vs-deribit.json, and with the fewest tokens: https://www.anchorterminal.com/compare/bitfinex-vs-deribit.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"bitfinex\", \"b\": \"deribit\"}`. From a terminal: `anchor compare bitfinex deribit`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/bitfinex.json and https://www.anchorterminal.com/api/v1/tools/deribit.json\n\n## Other comparisons with Bitfinex API or Deribit\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 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 OKX API](https://www.anchorterminal.com/compare/bitfinex-vs-okx.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 Deribit](https://www.anchorterminal.com/compare/bitget-vs-deribit.md)\n- [Bithumb Open API vs Deribit](https://www.anchorterminal.com/compare/bithumb-vs-deribit.md)\n- [Bitstamp API vs Deribit](https://www.anchorterminal.com/compare/bitstamp-vs-deribit.md)\n- [Bybit vs Deribit](https://www.anchorterminal.com/compare/bybit-vs-deribit.md)\n- [Crypto.com Exchange API vs Deribit](https://www.anchorterminal.com/compare/crypto-com-exchange-vs-deribit.md)\n- [Deribit vs Upbit Open API](https://www.anchorterminal.com/compare/deribit-vs-upbit.md)\n- [Binance API vs Bitfinex API](https://www.anchorterminal.com/compare/binance-vs-bitfinex.md)\n- [Binance API vs Deribit](https://www.anchorterminal.com/compare/binance-vs-deribit.md)\n- [Coinbase Advanced Trade API vs Deribit](https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-deribit.md)\n- [Coinbase MCP server (Coinbase for Agents) vs Deribit](https://www.anchorterminal.com/compare/coinbase-mcp-vs-deribit.md)\n- [Deribit vs Uniswap Trading API](https://www.anchorterminal.com/compare/deribit-vs-uniswap.md)\n- [Deribit vs dYdX](https://www.anchorterminal.com/compare/deribit-vs-dydx.md)\n- [Deribit vs Gate](https://www.anchorterminal.com/compare/deribit-vs-gate-io.md)\n- [Deribit vs Gemini Exchange API](https://www.anchorterminal.com/compare/deribit-vs-gemini-exchange.md)\n- [Deribit vs HTX trading API](https://www.anchorterminal.com/compare/deribit-vs-htx.md)\n- [Deribit vs Hyperliquid](https://www.anchorterminal.com/compare/deribit-vs-hyperliquid.md)\n- [Deribit vs Kraken API](https://www.anchorterminal.com/compare/deribit-vs-kraken.md)\n- [Deribit vs KuCoin](https://www.anchorterminal.com/compare/deribit-vs-kucoin.md)\n- [Deribit vs MEXC API](https://www.anchorterminal.com/compare/deribit-vs-mexc.md)\n- [Deribit vs OKX API](https://www.anchorterminal.com/compare/deribit-vs-okx.md)\n",
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    "title": "Bitfinex vs Deribit for AI agents in 2026: scores and prices",
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