# Uniswap Trading API vs Upbit Open API

> Uniswap Trading scores 63.3 (B) to Upbit Open's 54.7 (C) for exchange spot trading. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/uniswap-vs-upbit
- Markdown: https://www.anchorterminal.com/compare/uniswap-vs-upbit.md (~3,750 tokens)
- Site index for agents: https://www.anchorterminal.com/llms.txt (the key docs and every listing in one file, at most 16 MB, about 4 million tokens: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- DNS: dig +short TXT <slug>.grade.anchorterminal.com (the grade as a DNS TXT record, for a sandbox with no HTTP where names still resolve; also top., best.<category>. and <a>.vs.<b>. under the zone, and the same under grade.letme.dev)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-11-04

Uniswap Trading API scores 63.3 (B) on agent readiness against Upbit Open API's 54.7 (C), and leads in 6 of 7 scored categories. Both do exchange spot trading.

- Uniswap Trading API: grade B, 63.3/100, rank #470 of 1349. Markdown https://www.anchorterminal.com/tools/uniswap.md · JSON https://www.anchorterminal.com/api/v1/tools/uniswap.json
- Upbit Open API: grade C, 54.7/100, rank #801 of 1349. Markdown https://www.anchorterminal.com/tools/upbit.md · JSON https://www.anchorterminal.com/api/v1/tools/upbit.json
- Best crypto exchange APIs and MCP servers for AI agents: https://www.anchorterminal.com/best/crypto-exchanges/index.md
- All 210 exchanges comparisons: https://www.anchorterminal.com/compare/crypto-exchanges/index.md

## Which one, for what

### Uniswap Trading API (B)

Good for: An agent swapping or bridging tokens from its own wallet on 21 EVM chains, or managing liquidity positions, with routing done for it.

Ahead on:
- Schema & documentation, 90 against 66
- Payments & pricing, 40 against 15
- Maintenance & community, 88 against 83

Also in its favour:
- Free to start without a card

Watch for: No official MCP server; the registry's Uniswap entries are third parties

### Upbit Open API (C)

Good for: KRW-market trading for agents acting for a verified Korean account, with first-party SDKs, a CLI and skills but no MCP.

Watch for: No MCP server; the agent route is the CLI through skills, which need a terminal


## Why the edge

### Payments & pricing: Uniswap Trading API +25

- Uniswap Trading API (40): No machine payment protocol on the API's endpoints; the `pay-with-any-token` skill lets an agent pay other services' 402 challenges by swapping, which earns nothing here (0). The API is free, stated in the FAQ and the 16 April 2026 post, and integrator fees are capped at 500 bips (20). No card and no plan (20). A person creates an account in the dashboard to get a key (0). Total 40.
- 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.

### Schema & documentation: Uniswap Trading API +24

- Uniswap Trading API (90): OpenAPI 3.0 file (Token Trading 1.0.0) for the Trading and LP APIs, about 33 paths with `x-internal` markers on the margin and 4337 operations (25). llms.txt, llms-full.txt and a Markdown twin of every docs page (10). Operation summaries are one line, but the guides say which routing types go to `/swap`, `/order` and `/plan`, when UniswapX quotes are returned and when a 404 means change the request (14 of 20). Enums for routing types, urgency and position statuses, required fields and bounded integers such as `limit` 1 to 20 (12 of 15). Examples on every guide page and error schemas for 400, 401, 404 and 429 with a stable `errorCode` enum and per-code retry advice (14 of 15). A /v1 path, a changelog with posted and effective dates and a 30-day minimum sunset policy (15). Total 90.
- 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.

### Maintenance & community: Uniswap Trading API +5

- Uniswap Trading API (88): Read as a closed hosted service. The newest changelog notice is dated 22 October 2026 (30). Notices of 20 August, 21 September and 22 October 2026, three in 90 days (20). A help form for developer support that says it won't debug integrators' code, and uniswap-ai with 6 open issues and a push on 26 October (14 of 25). Official TypeScript SDKs current (@uniswap/v4-sdk 2.4.4 with provenance) and the uniswap-ai skills, though no client for the API itself; no MCP registry entry (15). Trusted publishing with provenance on npm, CI and lint hooks on uniswap-ai (9 of 10). Total 88.
- 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.

## Score by category

| Category | Weight | Uniswap Trading API | Upbit Open API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 42 | 42 | even |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 90 | 66 | Uniswap Trading API +24 |
| Agent ergonomics | 13% (16.2 this run) | 72 | 70 | Uniswap Trading API +2 |
| Security & auth | 14% (17.5 this run) | 63 | 59 | Uniswap Trading API +4 |
| Payments & pricing | 10% (12.5 this run) | 40 | 15 | Uniswap Trading API +25 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 88 | 83 | Uniswap Trading API +5 |
| Transparency & trust | 7% (8.8 this run) | 55 | 54 | Uniswap Trading API +1 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **63.3 · B** | **54.7 · C** | |

## Facts side by side

| Fact | Uniswap Trading API | Upbit Open API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Uniswap Labs | Dunamu Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | API key | API key |
| Pricing | Free | Pay per use |
| x402 | no | no |
| Licence | The Trading API is a proprietary hosted service under Uniswap Labs' API Terms of Use, which we couldn't read; the SDKs and the uniswap-ai skills are MIT. Swaps execute on the open-source Uniswap protocol contracts on chain | none |
| Tools exposed | 0 | 0 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-22 | 2026-10-20 |
| Terms last updated | couldn't be read | no document linked |
| Privacy policy last updated | no document linked | 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 | 236 stars, 154k npm/wk | 91 stars |

## Verdicts

**Uniswap Trading API.** The Trading API is free, documented by an OpenAPI file with stable error codes, holds no keys since the caller signs every swap, and posts sunset notices 30 days ahead. There is no official MCP server, status page or sandbox, the key is a plain header secret at 6 requests a second, and the API terms refused our reader.

**Upbit Open API.** Upbit's Open API has a mandatory IP allow-list, scoped keys with a default withdrawal lock, per-group rate limits with 429 and 418 signalling, an order-test endpoint, official SDKs, a CLI and agent skills with a CONFIRM gate. There is no MCP server, sandbox or status page, and the fees and terms sit on a host our crawler may not read.

## Before you call either

### Uniswap Trading API

1. Call `/check_approval` first, then `/quote`; if `permitData` is non-null sign it as EIP-712 and send `signature` and `permitData` together to `/swap` or `/order`, never one without the other
2. Route on the quote's `routing`: `CLASSIC`, `WRAP`, `UNWRAP` and `BRIDGE` go to `/swap`, `DUTCH_V2`, `DUTCH_V3` and `PRIORITY` to `/order`, `CHAINED` to `/plan`
3. Refresh any quote older than 30 seconds before broadcasting, and on 429 pause every request from the key before retrying
4. Retry unchanged only on `UpstreamTimeoutError`; `NoRouteFoundError` and `QuoteAmountTooLowError` need a different amount, token or `protocols` list
5. Send `X-Agent-Info` with `decision_origin: autonomous` and keep `x-api-key` server-side

### Upbit Open API

1. Ask the person for a key with only the functions the task needs and your server's public IPv4 address registered; a private or unregistered IP is refused
2. Sign every request with a fresh JWT (HS512, new nonce, SHA512 query hash) and branch on error.name, not error.message
3. Run POST /v1/orders/test before a live order; it costs nothing and shares the 8-a-second order-test group
4. Read Remaining-Req and keep orders under 12 a second per pocket; on 429 wait for the next second and on 418 wait out the stated block
5. Leave the withdrawal safe-lock on unless the person lifts it in the app, and send paths with single slashes and no trailing slash before 16 November 2026

## Questions

### Which is better for AI agents, Uniswap Trading API or Upbit Open API?

Uniswap Trading API scores 63.3 (B) on agent readiness against Upbit Open API's 54.7 (C), and leads in 6 of 7 scored categories.

### Do Uniswap Trading API and Upbit Open API need an API key?

Both need an API key.

### Can an agent call Uniswap Trading API and Upbit Open API without installing anything?

No hosted endpoint is listed for Uniswap Trading API. No hosted endpoint is listed for Upbit Open API.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/uniswap-vs-upbit.json, and with the fewest tokens: https://www.anchorterminal.com/compare/uniswap-vs-upbit.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "uniswap", "b": "upbit"}`. From a terminal: `anchor compare uniswap upbit`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/uniswap.json and https://www.anchorterminal.com/api/v1/tools/upbit.json

## Other comparisons with Uniswap Trading API or Upbit Open API

- [Bitfinex API vs Uniswap Trading API](https://www.anchorterminal.com/compare/bitfinex-vs-uniswap.md)
- [Bitfinex API vs Upbit Open API](https://www.anchorterminal.com/compare/bitfinex-vs-upbit.md)
- [Bitget vs Uniswap Trading API](https://www.anchorterminal.com/compare/bitget-vs-uniswap.md)
- [Bitget vs Upbit Open API](https://www.anchorterminal.com/compare/bitget-vs-upbit.md)
- [Bithumb Open API vs Uniswap Trading API](https://www.anchorterminal.com/compare/bithumb-vs-uniswap.md)
- [Bithumb Open API vs Upbit Open API](https://www.anchorterminal.com/compare/bithumb-vs-upbit.md)
- [Bitstamp API vs Uniswap Trading API](https://www.anchorterminal.com/compare/bitstamp-vs-uniswap.md)
- [Bitstamp API vs Upbit Open API](https://www.anchorterminal.com/compare/bitstamp-vs-upbit.md)
- [Bybit vs Uniswap Trading API](https://www.anchorterminal.com/compare/bybit-vs-uniswap.md)
- [Bybit vs Upbit Open API](https://www.anchorterminal.com/compare/bybit-vs-upbit.md)
- [Crypto.com Exchange API vs Uniswap Trading API](https://www.anchorterminal.com/compare/crypto-com-exchange-vs-uniswap.md)
- [Crypto.com Exchange API vs Upbit Open API](https://www.anchorterminal.com/compare/crypto-com-exchange-vs-upbit.md)
- [Deribit vs Upbit Open API](https://www.anchorterminal.com/compare/deribit-vs-upbit.md)
- [dYdX vs Uniswap Trading API](https://www.anchorterminal.com/compare/dydx-vs-uniswap.md)
- [dYdX vs Upbit Open API](https://www.anchorterminal.com/compare/dydx-vs-upbit.md)
- [Gate vs Uniswap Trading API](https://www.anchorterminal.com/compare/gate-io-vs-uniswap.md)
- [Gate vs Upbit Open API](https://www.anchorterminal.com/compare/gate-io-vs-upbit.md)
- [Gemini Exchange API vs Uniswap Trading API](https://www.anchorterminal.com/compare/gemini-exchange-vs-uniswap.md)
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- [HTX trading API vs Upbit Open API](https://www.anchorterminal.com/compare/htx-vs-upbit.md)
- [Hyperliquid vs Upbit Open API](https://www.anchorterminal.com/compare/hyperliquid-vs-upbit.md)
- [KuCoin vs Uniswap Trading API](https://www.anchorterminal.com/compare/kucoin-vs-uniswap.md)
- [KuCoin vs Upbit Open API](https://www.anchorterminal.com/compare/kucoin-vs-upbit.md)
- [MEXC API vs Uniswap Trading API](https://www.anchorterminal.com/compare/mexc-vs-uniswap.md)
- [MEXC API vs Upbit Open API](https://www.anchorterminal.com/compare/mexc-vs-upbit.md)
- [Binance API vs Uniswap Trading API](https://www.anchorterminal.com/compare/binance-vs-uniswap.md)
- [Binance API vs Upbit Open API](https://www.anchorterminal.com/compare/binance-vs-upbit.md)
- [Coinbase Advanced Trade API vs Uniswap Trading API](https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-uniswap.md)
- [Coinbase Advanced Trade API vs Upbit Open API](https://www.anchorterminal.com/compare/coinbase-advanced-trade-vs-upbit.md)
- [Coinbase MCP server (Coinbase for Agents) vs Uniswap Trading API](https://www.anchorterminal.com/compare/coinbase-mcp-vs-uniswap.md)
- [Coinbase MCP server (Coinbase for Agents) vs Upbit Open API](https://www.anchorterminal.com/compare/coinbase-mcp-vs-upbit.md)
- [Deribit vs Uniswap Trading API](https://www.anchorterminal.com/compare/deribit-vs-uniswap.md)
- [Hyperliquid vs Uniswap Trading API](https://www.anchorterminal.com/compare/hyperliquid-vs-uniswap.md)
- [Kraken API vs Uniswap Trading API](https://www.anchorterminal.com/compare/kraken-vs-uniswap.md)
- [Kraken API vs Upbit Open API](https://www.anchorterminal.com/compare/kraken-vs-upbit.md)
- [OKX API vs Uniswap Trading API](https://www.anchorterminal.com/compare/okx-vs-uniswap.md)
- [OKX API vs Upbit Open API](https://www.anchorterminal.com/compare/okx-vs-upbit.md)

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp