# Bitstamp API vs Upbit Open API (slim)

> Upbit Open scores 54.7 (C) to Bitstamp's 50.4 (D) for exchange market data. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/bitstamp-vs-upbit.md (~4,400 tokens) · this version ~2,230 tokens · JSON https://www.anchorterminal.com/compare/bitstamp-vs-upbit.json · canonical https://www.anchorterminal.com/compare/bitstamp-vs-upbit
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-03
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Upbit Open API scores 54.7 (C) on agent readiness against Bitstamp API's 50.4 (D), and leads in 4 of 7 scored categories. Bitstamp API leads on reliability and payments & pricing. Both do exchange market data.

- Bitstamp API: D 50.4, rank #1002 of 1349 · https://www.anchorterminal.com/tools/bitstamp.min.md
- Upbit Open API: C 54.7, rank #860 of 1349 · https://www.anchorterminal.com/tools/upbit.min.md
- Bitstamp API, good for An agent that needs a long-running regulated spot venue in the EU, UK and US with a sandbox and per-endpoint key permissions, and can do its own signing. Ahead on Reliability, 63 against 42; Payments & pricing, 20 against 15.
- Upbit Open API, good for KRW-market trading for agents acting for a verified Korean account, with first-party SDKs, a CLI and skills but no MCP. Ahead on Schema & documentation, 66 against 51; Agent ergonomics, 70 against 58; Maintenance & community, 83 against 28.

| Category | Bitstamp API | Upbit Open API |
| --- | --- | --- |
| Reliability (16%) | 63 | 42 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 51 | 66 |
| Agent ergonomics (13%) | 58 | 70 |
| Security & auth (14%) | 60 | 59 |
| Payments & pricing (10%) | 20 | 15 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 28 | 83 |
| Transparency & trust (7%) | 53 | 54 |

| Fact (where they differ) | Bitstamp API | Upbit Open API |
| --- | --- | --- |
| Vendor | Bitstamp Ltd. | Dunamu Inc. |
| Licence | Proprietary hosted API under Bitstamp's terms of use, which our reader couldn't load | none |
| Tools exposed | none | 0 |
| llms.txt | no | yes |
| Last release | 2026-08-28 | 2026-10-20 |
| Terms last updated | couldn't be read | no document linked |
| Privacy policy last updated | couldn't be read | no date given |
| Customer content may train models | couldn't be read | not read yet |
| Terms restrict automated access | couldn't be read | not read yet |
| Terms restrict benchmarking | couldn't be read | not read yet |
| Terms or service can change without notice | couldn't be read | not read yet |
| Arbitration or class-action waiver | couldn't be read | not read yet |
| Popularity | none | 91 stars |

Why the edge:
- Maintenance & community, Upbit Open API +55: Bitstamp API 28 (Read as a closed service. The last dated API change is 28 August 2026, 67 days before the check (20). Only one dated entry in the last 90 days, after 1 July and 12 June (0). No public repository or issue tracker, support pages did not load and support.bitstamp.net did not resolve; a changelog exists (8 of 25). No official SDKs and no MCP registry presence of Bitstamp's own (0). No package to assess (0). 20 + 0 + 8 + 0 + 0 = 28.); Upbit Open API 83 (Read as a closed service. SDK v1.1.0 on 20 October 2026 (30). The CLI 1.0.0 on 1 September, the rate-limit update of 7 October, the SDK on 20 October and the path-format notice for 16 November 2026 (20). open-api@upbit.com answers in turn on weekdays per the support notice, notices carry dates, and the six upbit-official repositories show no open issues (12 of 15). Current official SDKs in Python, TypeScript and Go (15). Apache-2.0 repositories pushed in October 2026; CI not checked (6 of 10). 30 + 20 + 12 + 15 + 6 = 83.)
- Reliability, Bitstamp API +21: Bitstamp API 63 (Read with the hosted lines on the HTTP API v2 at www.bitstamp.net/api/v2/. status.bitstamp.net is a Statuspage site with component history (20). Its feed for 5 August to 3 November 2026 has 17 entries, among them withdrawals failing on 14 networks for about 3 hours on 21 August, database maintenance with login failures and intermittent trading interruptions for about 1 hour 44 minutes on 23 September, a 39-minute halt of all markets on 5 August, and delistings and single-asset suspensions. One major (10). Rate limits with numbers, 400 a second and 10,000 per 10 minutes (15). Limit errors are named (400.002, 400.067, 400.068) but there is no Retry-After or backoff guidance, duplicate client order ids are allowed, and the only retry guidance is to check the order after a 500.016 timeout (8 of 15). No SLA found (0). Generally available (10). 20 + 10 + 15 + 8 + 0 + 10 = 63.); Upbit Open API 42 (Read with the hosted lines. No status page found on docs.upbit.com or in llms.txt; a wallet-status endpoint and an announcements stream stand in (0). No readable incident history (5). Rate limits documented with numbers per group, per IP and per pocket, updated 7 October 2026 (15). 429 then 418 with a stated block length and a Remaining-Req header, an order-test endpoint and a self-match-prevention default; an order identifier for safe retries was not checked (12 of 15). No SLA found (0). Generally available (10). 0 + 5 + 15 + 12 + 0 + 10 = 42.)
- Schema & documentation, Upbit Open API +15: Bitstamp API 51 (No OpenAPI or other machine-readable contract was found on the API page or elsewhere (0). No llms.txt or Markdown docs (0). The single documentation page describes each endpoint's purpose and parameters, with notes such as the 10-second cache on open orders and the Travel Rule fields, but not when to use one endpoint over another (14 of 20). Parameters are typed with enumerations (margin mode CROSS or ISOLATED, margin multiplier 1 to 25, order types) and required fields marked (11 of 15). Signing examples in Python, Java and C++, and error families with numbered codes and explanations (13 of 15). Version v2 in the path and header, a dated changelog from 7 April 2023 to 28 August 2026, and a 410.001 code for deprecated endpoints, with no stated notice period (13 of 15). 0 + 0 + 14 + 11 + 13 + 13 = 51.); Upbit Open API 66 (No OpenAPI found; the reference is a readme.io site with a Markdown twin of every page (5 of 25). llms.txt on docs.upbit.com and a kr/llms.txt index (10). Each reference page states what the endpoint does, its group and its errors, with warnings such as market_offline after maintenance (14 of 20). Typed parameters with enums for order type, side and time in force and required flags (11 of 15). Recipes in Python, Java and Node.js and an error format of error.name and error.message with HTTP statuses (13 of 15). Feature versions in page histories (v1.6.1) and dated notices with effective dates, no single API version (13 of 15). 5 + 10 + 14 + 11 + 13 + 13 = 66.)
- Agent ergonomics, Upbit Open API +12: Bitstamp API 58 (Graded on the REST API. Order book grouping and transaction time windows size responses, but there is no field selection and no MCP surface (15 of 25). Offset, limit, since and sort on transaction history, `until_id` windows on order-data replay (14 of 20). `response_code` and `response_explanation` name the failure, such as 400.009 insufficient balance, 403.004 trading blocked and 500.025 insufficient liquidity (16 of 20). No idempotency, since `client_order_id` duplicates are allowed since November 2023 and the docs say only to check the order id after a timeout; the kill switch limits damage (8 of 20). Few required parameters, but no official SDK in any language (5 of 15). 15 + 14 + 16 + 8 + 5 = 58.); Upbit Open API 70 (Graded on the REST API with the CLI. Candle counts, list limits and the CLI's --max-items and --transform size responses (16 of 25). Paging and filters on orders and history (15 of 20). error.name codes to branch on, which the November 2026 notice tells clients to use, and 418 with its block length (15 of 20). An order-test endpoint and a CONFIRM gate in the skills; an order identifier for idempotent placement was not checked (11 of 20). Few required parameters, SDKs in three languages and a CLI, but keys need the PC web site and a registered IP (13 of 15). 16 + 15 + 15 + 11 + 13 = 70.)
- Payments & pricing, Bitstamp API +5: Bitstamp API 20 (No machine payment protocol (0). The fee schedule page loaded empty, the API's fee endpoints need a key, and no rate could be read, so fees are scored as not published (0, unchecked). The API is free, public endpoints need no key and the sandbox needs no money (20). A person must sign up in a browser with identity checks and mint the key (0). 0 + 0 + 20 + 0 = 20.); Upbit Open API 15 (No machine payment protocol (0). The fee schedule is on upbit.com, which disallows every crawler path, so no price is recorded (0 of 20, unchecked). Public quotation endpoints need no key, card or account; trading needs a verified Korean account. Judgement call (15 of 20). A person must sign up, pass identity checks and issue keys on the PC web site (0). 0 + 0 + 15 + 0 = 15.)