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 when a swap moves the pool · ~2s blocks, delivered over REST or pushed to you over SSE. 50K free requests a month, no signup.

Start free, no signup View live Optimism data

7Optimism DEXes indexed

704liquidity pools tracked

$9.15M24h DEX volume

111.97K24h 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, Curve, SushiSwap V3
Liquidity pools	704 tracked, reserves updated per block
24h DEX volume	$9.15M
24h swap transactions	111.97K
Update cadence	when a swap moves the pool · ~2s blocks
History	OHLCV candles from 1-minute to 1-day; the same history depth on every tier
Delivery	REST JSON + SSE push streams

Data as of 2026-08-13 08:45 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/pools/search?token_address={address}	Every pool a token trades in	reference
/networks/optimism/pools/{address}/ohlcv	Candles from 1-minute to 1-day; the same history depth on every tier	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, a push-based reserves feed you will not find at CoinGecko or DexScreener. Poll loops re-fetch unchanged state and still miss mid-block moves. With push, the only gap between on-chain state and your app is the network round-trip plus our block indexing.

# 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"

# push: live swaps touching WETH, as they land on Optimism
curl -N "https://streaming.dexpaprika.com/sse/transactions?chain=optimism&address=0x4200000000000000000000000000000000000006&method=token"

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 / month

50K requests / month, no API key
300K with a free key, no credit card
Every endpoint, every chain, real-time

Start free, 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, Curve, SushiSwap V3, 704 pools in total, as of 2026-08-13 08:45 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, so 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: 50K requests per month free, per IP. A free API key (no credit card) raises that to 300K, and 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). That is a push-based reserves feed you will not find at CoinGecko or DexScreener.

What does the Optimism DEX API cost?

The free tier includes 50K requests per month per IP, with no API key or credit card, on every endpoint and every chain. A free registered key raises that to 300K/mo. 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