REST + SSE STREAMING · NO API KEY

Optimism DEX Data API - REST + real-time streaming

Token prices, liquidity pools, OHLCV and swaps for every Optimism DEX we index — updated every block · ~2s blocks, delivered over REST or pushed to you over SSE. 200K free requests a month, no signup.

Start free — no signup View live Optimism data

7Optimism DEXes indexed

725liquidity pools tracked

$10.50M24h DEX volume

123.81K24h swap transactions

Optimism coverage

What you get the moment you call the API — no key, no quota negotiation.

DEXes indexed	7 — incl. Velodrome SlipStream, Uniswap V3, Velodrome V2
Liquidity pools	725 tracked, reserves updated per block
24h DEX volume	$10.50M
24h swap transactions	123.81K
Update cadence	every block · ~2s blocks
History	OHLCV candles from 1m to 1d, back to pool creation
Delivery	REST JSON + SSE push streams

Data as of 2026-07-10 11:26 UTC · source: api.dexpaprika.com

Optimism API endpoints

Every endpoint below works right now, unauthenticated. Full reference in the docs.

Endpoint	Returns	Docs
/networks/optimism/dexes	All indexed DEXes with 24h volume and pool counts	reference
/networks/optimism/pools/search	Pools — filter & sort by volume, liquidity, txns, age	reference
/networks/optimism/tokens/{address}	Token metadata + live price + 24h stats	reference
/networks/optimism/tokens/{address}/pools	Every pool a token trades in	reference
/networks/optimism/pools/{address}/ohlcv	Candles — 1m to 1d, back to pool creation	reference
/networks/optimism/pools/{address}/transactions	Swap-level transaction history	reference
/networks/optimism/multi/prices?tokens=a,b	Batched USD prices — up to 10 tokens per call	reference

Your first Optimism call

▸ No API key. No signup. Paste and run.

# top Optimism pools by 24h volume
curl "https://api.dexpaprika.com/networks/optimism/pools/search?order_by=volume_usd_24h&sort=desc&limit=5"

# live price for WETH
curl "https://api.dexpaprika.com/networks/optimism/tokens/0x4200000000000000000000000000000000000006"

// top Optimism pools by 24h volume — no key, no signup
const res = await fetch(
    'https://api.dexpaprika.com/networks/optimism/pools/search?order_by=volume_usd_24h&sort=desc&limit=5'
)
const { results } = await res.json()
for (const pool of results) {
    console.log(pool.dex_name, Math.round(pool.volume_usd_24h))
}

# top Optimism pools by 24h volume — no key, no signup
import requests

pools = requests.get(
    "https://api.dexpaprika.com/networks/optimism/pools/search",
    params={"order_by": "volume_usd_24h", "sort": "desc", "limit": 5},
).json()["results"]

for pool in pools:
    print(pool["dex_name"], round(pool["volume_usd_24h"]))

Streaming: stop polling Optimism

Open one SSE connection and we push token prices and per-block pool reserve deltas as Optimism state changes — the only push-based reserves feed on the market. Poll loops re-fetch unchanged state and still miss mid-block moves; push delivery makes the gap between on-chain state and your app the network round-trip, nothing else.

# push: live WETH price ticks on Optimism — one connection, no polling
curl -N "https://streaming.dexpaprika.com/sse/prices?chain=optimism&address=0x4200000000000000000000000000000000000006&method=token_price"

# push: per-block reserve deltas for WETH pools
curl -N "https://streaming.dexpaprika.com/sse/reserves?chain=optimism&address=0x4200000000000000000000000000000000000006&method=token_reserves"

Free tier: up to 10 concurrent streams per IP. Watch it live on the Optimism streaming demo or read the streaming docs.

Simple, honest pricing

Same endpoints on every tier. Full details on the pricing page.

Free

$0 forever

200K requests / month
No API key, no credit card
Every endpoint, every chain, real-time

Start using — no signup

Pro

$99 / month

5M requests included
Streaming at scale + priority support
Transparent overages — no gotchas

Start Pro

Optimism DEX data API — frequently asked questions

Which Optimism DEXes does the API cover?

7 Optimism DEXes including Velodrome SlipStream, Uniswap V3, Velodrome V2 — 725 pools in total, as of 2026-07-10 11:26 UTC.

How fresh is the Optimism data?

Data updates every Optimism block (~2s blocks). REST responses reflect the latest indexed block; SSE streams push changes as they happen — there is no polling interval between your app and Optimism chain state.

Do I need an API key for Optimism data?

No. Every REST endpoint and SSE stream works without a key or signup — 200K requests per month free. Pro ($99/mo) lifts the ceiling to 5M requests.

How do I get a Optimism token price with the API?

GET /networks/optimism/tokens/{address} returns the live USD price with 24h volume and liquidity in one call. For portfolios, /networks/optimism/multi/prices returns batched prices for up to 10 tokens per request.

Does streaming work for Optimism?

Yes — SSE streams at streaming.dexpaprika.com push Optimism token prices (/sse/prices) and per-block pool reserve deltas (/sse/reserves). It is the only push-based reserves feed on the market.

What does the Optimism DEX API cost?

The free tier includes 200K requests per month with no API key or credit card, on every endpoint and every chain. Pro is $99/mo for 5M requests with priority support.

Every chain, same API

Start on Optimism. Scale across 36 chains without changing a line of integration code.

Build on Optimism data in the next 60 seconds

Start on Optimism. Scale across 36 chains. The first request is one curl away — no key, no card, no sales call.

Start free — no signup Read the docs