Coinbase Advanced Trade API vs Crypto.com Exchange API

Coinbase Advanced Trade API 80

Public OpenAPI 3.1 spec (45 paths, 51 operations) and an AsyncAPI document (25). llms.txt and a Markdown twin of every docs page (10). Every operation has a summary and description, some one line, several with multi-sentence guidance for equities (14 of 20). Enums on product_type, granularity, order_status, time_in_forces, order_types, order_side and sort_by, with defaults (13 of 15). Examples in the docs and the sandbox's simulated errors, but the spec documents only a default error referencing grpc.gateway.runtime.Error, with no 4xx or 429 shapes (8 of 15). Paths carry /api/v3, the CDP changelog is dated, and the INTX retirement was announced with a date, but the spec's info.version is 0.1 and the October gateway change has no changelog entry (10 of 15). 25 + 10 + 14 + 13 + 8 + 10 = 80.

Crypto.com Exchange API 42

An OpenAPI spec exists, since cdcx-cli generates its 95 commands and tools from it at run time, but its host (exchange-developer.crypto.com) answered 403 to robots.txt and the spec was not read; the vendor's own tooling is evidence it exists, not of its quality (15 of 25). No llms.txt on crypto.com or the Exchange pages (0). For descriptions, cdcx's tool descriptions come from the spec, which we couldn't read; the Exchange skill documents 52 endpoints in prose (8 of 20). cdcx's README says the tools carry typed parameters and enum validation, a vendor claim not checked against the spec (8 of 15). For examples, the skills and cdcx README carry worked commands, but the API's error codes and response examples sit on the unread host (6 of 15). Versioned path (v1); the API changelog and announcements page could not be read (5 of 15). 15 + 0 + 8 + 8 + 6 + 5 = 42.

Coinbase Advanced Trade API 57

Read as a closed hosted service. The last change to the API itself is the Global Derivatives gateway and INTX retirement of 1 October 2026, 33 days before this check; the Python SDK's v2.0.0rc1 is from 30 September (20 of 30). Dated changes in 90 days are the 1 October migration and the agents entries of 17 and 21 August, which run through Advanced Trade (12 of 20). A public changelog and a CDP Discord; SDK issues not read (8 of 15). Official Python SDK current, the rest samples (12 of 15). SDK CI not read (5 of 10). 20 + 12 + 8 + 12 + 5 = 57.

Crypto.com Exchange API 29

Read as a closed service with an open CLI. The last change we could date is cdcx-cli v1.2.6 on 18 June 2026, 138 days before the check, with no commit since; the API changelog is unread (10). No three dated releases in the last 90 days (0). Five of six open items on cdcx-cli, all by collaborators or Dependabot since May, have no comment; the Exchange has a support chat and contact@crypto.com (8 of 25). Not in the official MCP registry and no official SDK beyond the CLI (5 of 15). CI tests on three operating systems with clippy and fmt; the npm wrapper's postinstall downloads the binary and two Dependabot bumps are open (6 of 10). 10 + 0 + 8 + 5 + 6 = 29.

Coinbase Advanced Trade API 73

Product lists filter by product_type and product_ids with limit and offset, candles take a granularity, but fields cannot be selected and the docs warn that product lists run to hundreds of entries (15 of 25). Cursor pagination with limit on orders and fills, filters by status, product and time (16 of 20). Error codes such as INSUFFICIENT_FUND, ORDER_NOT_FOUND and PERMISSION_DENIED are documented and can be simulated in the sandbox, though the spec gives no shapes (14 of 20). client_order_id on every order; no idempotency key on other writes (16 of 20). Few required fields, an official Python SDK and sample SDKs in three languages, but each request needs a freshly signed JWT (12 of 15). 15 + 16 + 14 + 16 + 12 = 73.

Crypto.com Exchange API 50

Graded on the REST API as an agent calls it, with the MCP server noted. cdcx serves up to 95 tools, more than 30, but the default serves the market group alone and groups are enabled one by one, which is a read-only subset switch (5 + 10 = 15). Pagination and output controls for the API are on the unread docs host; cdcx adds -o json|table|ndjson (8 of 20). cdcx returns structured JSON errors and the safety gate names what is missing; the API's own error table is unread (8 of 20). cdcx's tiers (mutate needs acknowledged: true, dangerous needs --allow-dangerous), --dry-run and paper trading give safe rehearsal, though no MCP annotations or API idempotency keys were seen (12 of 20). No official SDK beyond the CLI; defaults in cdcx are sensible (7 of 15). 15 + 8 + 8 + 12 + 7 = 50.

Coinbase Advanced Trade API 20

No machine payment protocol on the API (0). The fee schedule answered a bot check on 3 November 2026, so no per-trade price was read, and the docs give none (0 of 20, unchecked). Six public market endpoints and the sandbox need no key or card (20). A person signs up, passes verification and mints a key in the portal (0). 0 + 0 + 20 + 0 = 20.

Crypto.com Exchange API 40

No machine payment protocol (0). Spot fee tiers published without login, 0.25% maker and 0.50% taker at Level 1 (20). The API is free, public market data needs no key, UAT and paper trading need no money (20). A person must sign up in a browser with identity checks and mint the key (0). 0 + 20 + 20 + 0 = 40.

Coinbase Advanced Trade API 68

CDP keys with view, trade and transfer permissions, a portfolio restriction, an optional IP allowlist, revocation in the portal, ES256 JWTs that expire after 2 minutes, and OAuth2 with wallet:* scopes for other people's accounts; no key expiry (28 of 30). View-only keys and portfolio scoping limit an agent, and transfer is a separate permission, but no withdrawal address allow-list for API keys and no confirmation step were found (14 of 20). The API returns no untrusted content (10). key_permissions reports a key's scope and account activity shows in the app, but no per-call log was found (6 of 15). HackerOne bug bounty named in a security.txt that expired on 1 June 2024; certifications unread behind a bot check (10 of 20). 28 + 14 + 10 + 6 + 10 = 68.

Crypto.com Exchange API 54

HMAC-SHA256 API keys made with 2FA; IP whitelisting and pre-approved withdrawal addresses per the official skill, and revocation from the Exchange settings. The permission list (read, trade, withdraw) is on the unread docs host, so scopes are recorded from the skills (20 of 30). On least privilege, the App skill's key has no withdrawal permission, the Exchange skill requires user confirmation before a production trade, and cdcx refuses withdrawals and cancel-all without --allow-dangerous; nothing on the server side limits order size (14 of 20). The tools return exchange data, not third-party text, but no guidance on untrusted content was found (6 of 15). An account audit trail is not documented where we could read (4 of 15). No security.txt on crypto.com; cdcx has a SECURITY.md with private reporting and a three-day acknowledgement, and the organisation keeps HackerOne policy guidelines; certifications were not read (10 of 20). 20 + 14 + 6 + 4 + 10 = 54.

Coinbase Advanced Trade API 67

The editorial half. A closed service whose user agreement answered a bot check; the OpenAPI spec is public and the Python SDK is open on GitHub (12 of 30). Privacy facts per the coinbase-cdp-agentkit check of 1 October 2026 (Coinbase, Inc., processing countries, retention tied to need without numbers), not re-read (10 of 30). INTX endpoints retired on 1 October 2026 with a dated notice and a read-only grace period (12 of 20). Processing countries and provider categories per the same earlier check, no subprocessor list (8 of 20). 12 + 10 + 12 + 8 = 42.

Crypto.com Exchange API 55

The editorial half. A closed service whose terms and trading rules loaded empty for our reader; cdcx and the skills are MIT or Apache-2.0 (10 of 30). The Exchange privacy notice of 12 March 2025 names Foris DAX Limited, gives retention examples (6 years for correspondence, 5 years for EEA AML records) and provider categories, with no DPA or subprocessor list (16 of 30). No deprecation policy or notice period was found (0). Transfers outside the Cayman Islands and the EEA are stated with no countries named (6 of 20). 10 + 16 + 0 + 6 = 32.