[GUEST ACCESS MODE: Data is scrambled or limited to provide examples. Make requests using your API key to unlock full data. Check https://lunarcrush.ai/auth for authentication information.] #  Base Protocol (BASE) Base Protocol is experiencing a surge in social engagement with anticipation building around potential Coinbase listing and major announcements. Traders are excited about the possibility of a $BASE airdrop, fueling bullish sentiment. ### About Base Protocol Base Protocol (BASE) is a cryptocurrency operating within the DeFi sector on the Ethereum network. Base Protocol uses the ticker $BASE for trading. Listed in the [Cryptocurrencies](/list/cryptocurrencies) and category within the [DeFi](/list/cryptocurrencies/defi) sectors. Base Protocol available on ethereum address 0x07150e919b4de5fd6a63de1f9384828396f25fdc. ### Insights [#](/topic/base-protocol/insights) - Base Protocol (BASE) market cap is up XXX% from the previous month. - Base Protocol (BASE) social dominance is up XXXXX% from the previous week. - Base Protocol (BASE) galaxy scoreβ’ is up XXXXXX% from the previous X months. - Base Protocol (BASE) creators is up XXXXX% from the previous month. - Base Protocol (BASE) engagements is up XX% from the previous week. - Base Protocol (BASE) mentions is up XXXXX% from the previous month. - Base Protocol (BASE) posts created is up XXXXX% from the previous month. ### Price: $XXXXX [#](/topic/base-protocol/close) ---  [Price 24-Hour Chart Data](/topic/base-protocol/time-series/close.tsv) The price is likely bullish due to positive sentiment, high social engagement, recent price increases, and meme coin hype. The 30-day price increase of XXXXXX% further supports this bullish outlook. | 1-Hour | 24-Hour | 7-Day | 30-Day | | ------ | ------- | ----- | ------ | | XXXX% | XXXX% | XXXX% | XXXXX% | **1-Year High**: $XXXX on 2024-12-07 **1-Year Low**: $XXXX on 2025-06-17 ### AltRank: XXX [#](/topic/base-protocol/alt_rank) ---  [AltRank 24-Hour Chart Data](/topic/base-protocol/time-series/alt_rank.tsv) Base Protocol (BASE) is currently AltRank #756 based on combined combined social and market metrics **Daily Average**: XXXXX **1 Week**: XXX -XXX **1 Month**: XXX +495 **6 Months**: XXX +398 **1 Year**: XXX -XXXXX **1-Year High**: XXXXX on 2024-10-09 **1-Year Low**: XX on 2025-03-03 ### Galaxy Score: XXXXX [#](/topic/base-protocol/galaxy_score) ---  [Galaxy Score 24-Hour Chart Data](/topic/base-protocol/time-series/galaxy_score.tsv) **Current Value**: XXXXX **Daily Average**: XX **1 Week**: XX +27 **1 Month**: XX +21 **6 Months**: XX +58 **1 Year**: XX +31 **1-Year High**: XX on 2025-07-17 **1-Year Low**: XX on 2024-09-02 ### Engagements: XXXXXXX [#](/topic/base-protocol/interactions) ---  [Engagements 24-Hour Chart Data](/topic/base-protocol/time-series/interactions.tsv) **Current Value**: XXXXXXX **Daily Average**: XXXXXXX **1 Week**: XXXXXXX +95% **1 Month**: XXXXXXXXX -XX% **6 Months**: XXXXXXXXXX -XXXX% **1 Year**: XXXXXXXXXX -XX% **1-Year High**: XXXXXXX on 2025-01-17 **1-Year Low**: XXXXX on 2025-07-18 | Social Network | X | Reddit | YouTube | TikTok | | -------------- | - | ------ | ------- | ------ | | Engagements | XXXXXXX | X | XXX | X | ### Mentions: XXXXX [#](/topic/base-protocol/posts_active) ---  [Mentions 24-Hour Chart Data](/topic/base-protocol/time-series/posts_active.tsv) **Current Value**: XXXXX **Daily Average**: XXX **1 Week**: XXXXX +29% **1 Month**: XXXXX +56% **6 Months**: XXXXXX -XX% **1 Year**: XXXXXX -XX% **1-Year High**: XXXXX on 2024-12-11 **1-Year Low**: XXX on 2025-07-18 | Social Network | X | Reddit | YouTube | TikTok | | -------------- | - | ------ | ------- | ------ | | Mentions | XXXXX | X | X | X | ### Creators: XXX [#](/topic/base-protocol/contributors_active) ---  [Creators 24-Hour Chart Data](/topic/base-protocol/time-series/contributors_active.tsv) XXX unique social accounts have posts mentioning Base Protocol (BASE) in the last XX hours which is down XXXX% from XXX in the previous XX hours **Daily Average**: XXX **1 Week**: XXXXX +22% **1 Month**: XXXXX +79% **6 Months**: XXXXXX -XXXX% **1 Year**: XXXXXX -XX% **1-Year High**: XXX on 2024-12-01 **1-Year Low**: XXX on 2025-03-30 The most influential creators that mention Base Protocol in the last XX hours | Creator | Rank | Followers | Posts | Engagements | | ------- | ---- | --------- | ----- | ----------- | | [@asedd72](/creator/twitter/asedd72) | X | XXXXXX | X | XXXXXX | | [@CryptoLord100x](/creator/twitter/CryptoLord100x) | X | XXXXXX | X | XXXXXX | | [@jamiekingston](/creator/twitter/jamiekingston) | X | XXXXXX | X | XXXXXX | | [@juancena2026](/creator/twitter/juancena2026) | X | XXXXX | X | XXXXX | | [@henvaibta](/creator/twitter/henvaibta) | X | XXXXXX | X | XXXXX | | [@Professor_A_Ice](/creator/twitter/Professor_A_Ice) | X | XXX | X | XXXXX | | [@schismaticshiba](/creator/twitter/schismaticshiba) | X | XXX | X | XXXXX | | [@defi_orbit](/creator/twitter/defi_orbit) | X | XXX | X | XXXXX | | [@yeshappyjoy](/creator/twitter/yeshappyjoy) | X | XXX | X | XXXXX | | [@realsrt_](/creator/twitter/realsrt_) | XX | XXXXX | X | XXXXX | [View More](/list/creators/base-protocol/100) ### Sentiment: XX% [#](/topic/base-protocol/sentiment) ---  [Sentiment 24-Hour Chart Data](/topic/base-protocol/time-series/sentiment.tsv) **Current Value**: XX% **Daily Average**: XX% **1 Week**: XX% +6% **1 Month**: XX% -X% **6 Months**: XX% +5% **1 Year**: XX% +6% **1-Year High**: XXX% on 2024-11-02 **1-Year Low**: XX% on 2025-03-25 **Most Supportive Themes** - **Base Protocol community excitement and bullish sentiment:** (65%) Posts express strong bullish sentiment, with high engagement, due to Base Protocol community excitement, and related meme coins. - **Base is for Everyone Community Support:** (20%) The protocol's inclusivity and community focus are heavily promoted by supporters, with meme coins and ecosystem growth driving interest. - **Meme Coin and Ecosystem Growth:** (10%) High levels of engagement with numerous giveaways and airdrops amplifying the excitement. **Most Critical Themes** - **Concerns about scams:** (5%) Posts express concerns about scams and rug pulls within the Base Protocol ecosystem. Network engagement breakdown: | Network | Positive | % | Neutral | % | Negative | % | | ------- | -------- | - | ------- | - | -------- | - | | X | XXXXXX | XX% | XXXXXX | XX% | XXXXX | X% | | Reddit | X | X% | X | X% | X | X% | | YouTube | X | X% | XXX | X% | XX | X% | | TikTok | X | X% | X | X% | X | X% | | | | | | | | | | Total | XXXXXX | XX% | XXXXXX | XX% | XXXXX | X% | ### Social Dominance: XXXXX% [#](/topic/base-protocol/social_dominance) ---  [Social Dominance 24-Hour Chart Data](/topic/base-protocol/time-series/social_dominance.tsv) **Current Value**: XXXXX% **Daily Average**: XXXXX% **1 Week**: XXXXX% +0.052% **1 Month**: XXXXX% +0.039% **6 Months**: XXXXX% +0.028% **1 Year**: XXXXX% -XXXXX% **1-Year High**: XXXXX% on 2024-07-26 **1-Year Low**: XXXX% on 2025-07-06 ### Market Dominance: XXXXXXXXXXXXXXXXXXXXXXX% [#](/topic/base-protocol/market_dominance) ---  [Market Dominance 24-Hour Chart Data](/topic/base-protocol/time-series/market_dominance.tsv) **Current Value**: XXXXXXXXXXXXXXXXXXXXXXX% **Daily Average**: X% **1-Year High**: XXXXXXX% on 2024-08-21 **1-Year Low**: XXXXXXX% on 2025-01-07 ### Market Cap: $XXXXXXXXXX [#](/topic/base-protocol/market_cap) ---  [Market Cap 24-Hour Chart Data](/topic/base-protocol/time-series/market_cap.tsv) **Current Value**: $XXXXXXXXXX **Daily Average**: $XXXXXXX **1 Week**: $XXXXXXX +$24% **1 Month**: $XXXXXXX +$137% **6 Months**: $XXXXXXX -$41% **1 Year**: $XXXXXXX -$61% **1-Year High**: $XXXXXXX on 2024-12-07 **1-Year Low**: $XXXXXXX on 2025-06-17 ### Circulating Supply: XXXXXXXXXX [#](/topic/base-protocol/circulating_supply) ---  [Circulating Supply 24-Hour Chart Data](/topic/base-protocol/time-series/circulating_supply.tsv) **Current Value**: XXXXXXXXXX **Daily Average**: XXXXXXX **1-Year High**: XXXXXXX on 2024-07-19 **1-Year Low**: XXXXXXX on 2024-07-19 **Top assets mentioned** In the posts about Base Protocol in the last XX hours [Base Protocol (BASE)](/topic/$base) [Ethereum (ETH)](/topic/$eth) [Coinbase Global, Inc. (COIN)](/topic/coinbase) [Solana (SOL)](/topic/$sol) [Ethereum (ETH)](/topic/ethereum) [Bitcoin (BTC)](/topic/$btc) [Mario Coin (COIN)](/topic/$coin) [BNB (BNB)](/topic/$bnb) **Top topics mentioned** In the posts about Base Protocol in the last XX hours [coins defi](/topic/coins-defi), [sol](/topic/sol), [token](/topic/token), [$eth](/topic/$eth), [protocol](/topic/protocol), [coinbase](/topic/coinbase), [sui](/topic/sui), [$sol](/topic/$sol), [bnb](/topic/bnb), [donald trump](/topic/donald-trump), [coins meme](/topic/coins-meme), [coins layer 1](/topic/coins-layer-1), [stocks financial services](/topic/stocks-financial-services), [nft](/topic/nft), [arb](/topic/arb), [ethereum](/topic/ethereum), [coins base ecosystem](/topic/coins-base-ecosystem), [baseisforeveryone](/topic/baseisforeveryone), [meta](/topic/meta), [memecoin](/topic/memecoin), [$btc](/topic/$btc), [og](/topic/og), [onchain](/topic/onchain), [blockchain](/topic/blockchain), [shib](/topic/shib), [$base is for everyone](/topic/$base-is-for-everyone), [stocks bitcoin treasuries](/topic/stocks-bitcoin-treasuries), [avax](/topic/avax), [$coin](/topic/$coin), [tha](/topic/tha), [goog](/topic/goog), [nvda](/topic/nvda), [web3](/topic/web3), [op](/topic/op), [trx](/topic/trx), [usdt](/topic/usdt), [#crypto](/topic/#crypto), [$bnb](/topic/$bnb), [aero](/topic/aero), [bsc](/topic/bsc), [nfts](/topic/nfts), [pol](/topic/pol), [miggles](/topic/miggles), [srm](/topic/srm), [googl](/topic/googl), [coins ai](/topic/coins-ai), [coins wallets](/topic/coins-wallets), [binance](/topic/binance), [keycat](/topic/keycat), [ticker](/topic/ticker), [pengu](/topic/pengu), [$linea](/topic/$linea), [0xd769d56f479e9e72a77bb1523e866a33098feec5](/topic/0xd769d56f479e9e72a77bb1523e866a33098feec5), [oscr](/topic/oscr), [grrr](/topic/grrr), [qqq](/topic/qqq), [$baseisforeveryone](/topic/$baseisforeveryone), [jup](/topic/jup), [altcoins](/topic/altcoins), [uaa](/topic/uaa), [$manyu](/topic/$manyu), [btc eth](/topic/btc-eth), [hbar](/topic/hbar), [spx](/topic/spx), [wen](/topic/wen), [bitcoin](/topic/bitcoin), [alt](/topic/alt), [holders](/topic/holders), [matic](/topic/matic), [$pump](/topic/$pump), [ena](/topic/ena), [money](/topic/money), [pltr](/topic/pltr), [gonna](/topic/gonna), [coins made in usa](/topic/coins-made-in-usa), [jto](/topic/jto), [market cap](/topic/market-cap), [crcl](/topic/crcl), [bnkr](/topic/bnkr), [arc](/topic/arc), [zora](/topic/zora), [coins](/topic/coins), [$boomer](/topic/$boomer), [uni](/topic/uni), [aapl meta](/topic/aapl-meta), [$ink](/topic/$ink), [gmx](/topic/gmx), [0x6da2705523dd976d1431d225c8f17846651ceb07](/topic/0x6da2705523dd976d1431d225c8f17846651ceb07), [beta](/topic/beta), [$bife](/topic/$bife), [dot](/topic/dot), [ink](/topic/ink), [kta](/topic/kta), [fet](/topic/fet), [coins solana ecosystem](/topic/coins-solana-ecosystem), [$xrp](/topic/$xrp), [$bsc](/topic/$bsc), [$ape](/topic/$ape), [boomeronbase](/topic/boomeronbase), [rep](/topic/rep) ### Top Social Posts [#](/topic/base-protocol/posts) --- Top posts by engagements in the last XX hours *Showing only X posts for non-authenticated requests. Use your API key in requests for full results.* "@mdudas @moonbirds Hah gbirb is the official meme animal now Wen $BIRB token airdrop But ser what chain is this on Is it $ETH $SOL or maybe $BASE Gonna need a bridge for my bags gm frens let's get this bread" [@HODLguin](/creator/x/HODLguin) on [X](/post/tweet/1945995712459677758) 2025-07-17 23:55:07 UTC XXX followers, XX engagements "$CVX $100K BUY XX min agoππππ #eth #btc #bnb $eth $btc $crv $frax $cake $op $bnb $uni $shadow $s $avax $aero $bal $velo $xrp $aave $base $sol $pol $pepe $ada $hype $trx $usdc $crvUSD $usdt #ethereum #bitcoin #blackrock #trump #defi #crypto #altcoins" [@defi_orbit](/creator/x/defi_orbit) on [X](/post/tweet/1945995387497500869) 2025-07-17 23:53:49 UTC XXX followers, XXX engagements "Yesterday I made $8600 through the stocks portfolio recommended by @srreed55. Im so happy $PDYN $LCID $BSLK $ABVE $MRKR $VLCN $NVDA $AAPL $META $TSLA $GOOG $BASE $PMD $VRCA $FLNC $KZIA $PFE $CYCC $NEON $RR $NVDA $RIG $BFLY $ZCMD $NEGG $HYFM π πΉ" [@gina_jacob60557](/creator/x/gina_jacob60557) on [X](/post/tweet/1945975548141764926) 2025-07-17 22:34:59 UTC X followers, XXX engagements "$BASE 8.5k 250k 25x so far Base just said yesterday they have no plans to launch a network token but guess what The community dropped one anyway and Base whales are all over it Higher with haste" [@CryptoLord100x](/creator/x/CryptoLord100x) on [X](/post/tweet/1945974021717360663) 2025-07-17 22:28:55 UTC 13.9K followers, 2690 engagements
[GUEST ACCESS MODE: Data is scrambled or limited to provide examples. Make requests using your API key to unlock full data. Check https://lunarcrush.ai/auth for authentication information.]
Base Protocol is experiencing a surge in social engagement with anticipation building around potential Coinbase listing and major announcements. Traders are excited about the possibility of a $BASE airdrop, fueling bullish sentiment.
Base Protocol (BASE) is a cryptocurrency operating within the DeFi sector on the Ethereum network.
Base Protocol uses the ticker $BASE for trading. Listed in the Cryptocurrencies and category within the DeFi sectors.
Base Protocol available on ethereum address 0x07150e919b4de5fd6a63de1f9384828396f25fdc.
Price 24-Hour Chart Data
The price is likely bullish due to positive sentiment, high social engagement, recent price increases, and meme coin hype. The 30-day price increase of XXXXXX% further supports this bullish outlook.
1-Hour | 24-Hour | 7-Day | 30-Day |
---|---|---|---|
XXXX% | XXXX% | XXXX% | XXXXX% |
1-Year High: $XXXX on 2024-12-07
1-Year Low: $XXXX on 2025-06-17
AltRank 24-Hour Chart Data
Base Protocol (BASE) is currently AltRank #756 based on combined combined social and market metrics
Daily Average: XXXXX
1 Week: XXX -XXX
1 Month: XXX +495
6 Months: XXX +398
1 Year: XXX -XXXXX
1-Year High: XXXXX on 2024-10-09
1-Year Low: XX on 2025-03-03
Galaxy Score 24-Hour Chart Data
Current Value: XXXXX
Daily Average: XX
1 Week: XX +27
1 Month: XX +21
6 Months: XX +58
1 Year: XX +31
1-Year High: XX on 2025-07-17
1-Year Low: XX on 2024-09-02
Engagements 24-Hour Chart Data
Current Value: XXXXXXX
Daily Average: XXXXXXX
1 Week: XXXXXXX +95%
1 Month: XXXXXXXXX -XX%
6 Months: XXXXXXXXXX -XXXX%
1 Year: XXXXXXXXXX -XX%
1-Year High: XXXXXXX on 2025-01-17
1-Year Low: XXXXX on 2025-07-18
Social Network | X | YouTube | TikTok | |
---|---|---|---|---|
Engagements | XXXXXXX | X | XXX | X |
Mentions 24-Hour Chart Data
Current Value: XXXXX
Daily Average: XXX
1 Week: XXXXX +29%
1 Month: XXXXX +56%
6 Months: XXXXXX -XX%
1 Year: XXXXXX -XX%
1-Year High: XXXXX on 2024-12-11
1-Year Low: XXX on 2025-07-18
Social Network | X | YouTube | TikTok | |
---|---|---|---|---|
Mentions | XXXXX | X | X | X |
Creators 24-Hour Chart Data
XXX unique social accounts have posts mentioning Base Protocol (BASE) in the last XX hours which is down XXXX% from XXX in the previous XX hours
Daily Average: XXX
1 Week: XXXXX +22%
1 Month: XXXXX +79%
6 Months: XXXXXX -XXXX%
1 Year: XXXXXX -XX%
1-Year High: XXX on 2024-12-01
1-Year Low: XXX on 2025-03-30
The most influential creators that mention Base Protocol in the last XX hours
Creator | Rank | Followers | Posts | Engagements |
---|---|---|---|---|
@asedd72 | X | XXXXXX | X | XXXXXX |
@CryptoLord100x | X | XXXXXX | X | XXXXXX |
@jamiekingston | X | XXXXXX | X | XXXXXX |
@juancena2026 | X | XXXXX | X | XXXXX |
@henvaibta | X | XXXXXX | X | XXXXX |
@Professor_A_Ice | X | XXX | X | XXXXX |
@schismaticshiba | X | XXX | X | XXXXX |
@defi_orbit | X | XXX | X | XXXXX |
@yeshappyjoy | X | XXX | X | XXXXX |
@realsrt_ | XX | XXXXX | X | XXXXX |
Sentiment 24-Hour Chart Data
Current Value: XX%
Daily Average: XX%
1 Week: XX% +6%
1 Month: XX% -X%
6 Months: XX% +5%
1 Year: XX% +6%
1-Year High: XXX% on 2024-11-02
1-Year Low: XX% on 2025-03-25
Most Supportive Themes
Most Critical Themes
Network engagement breakdown:
Network | Positive | % | Neutral | % | Negative | % |
---|---|---|---|---|---|---|
X | XXXXXX | XX% | XXXXXX | XX% | XXXXX | X% |
X | X% | X | X% | X | X% | |
YouTube | X | X% | XXX | X% | XX | X% |
TikTok | X | X% | X | X% | X | X% |
Total | XXXXXX | XX% | XXXXXX | XX% | XXXXX | X% |
Social Dominance 24-Hour Chart Data
Current Value: XXXXX%
Daily Average: XXXXX%
1 Week: XXXXX% +0.052%
1 Month: XXXXX% +0.039%
6 Months: XXXXX% +0.028%
1 Year: XXXXX% -XXXXX%
1-Year High: XXXXX% on 2024-07-26
1-Year Low: XXXX% on 2025-07-06
Market Dominance 24-Hour Chart Data
Current Value: XXXXXXXXXXXXXXXXXXXXXXX%
Daily Average: X%
1-Year High: XXXXXXX% on 2024-08-21
1-Year Low: XXXXXXX% on 2025-01-07
Market Cap 24-Hour Chart Data
Current Value: $XXXXXXXXXX
Daily Average: $XXXXXXX
1 Week: $XXXXXXX +$24%
1 Month: $XXXXXXX +$137%
6 Months: $XXXXXXX -$41%
1 Year: $XXXXXXX -$61%
1-Year High: $XXXXXXX on 2024-12-07
1-Year Low: $XXXXXXX on 2025-06-17
Circulating Supply 24-Hour Chart Data
Current Value: XXXXXXXXXX
Daily Average: XXXXXXX
1-Year High: XXXXXXX on 2024-07-19
1-Year Low: XXXXXXX on 2024-07-19
Top assets mentioned In the posts about Base Protocol in the last XX hours
Base Protocol (BASE) Ethereum (ETH) Coinbase Global, Inc. (COIN) Solana (SOL) Ethereum (ETH) Bitcoin (BTC) Mario Coin (COIN) BNB (BNB)
Top topics mentioned In the posts about Base Protocol in the last XX hours
coins defi, sol, token, $eth, protocol, coinbase, sui, $sol, bnb, donald trump, coins meme, coins layer 1, stocks financial services, nft, arb, ethereum, coins base ecosystem, baseisforeveryone, meta, memecoin, $btc, og, onchain, blockchain, shib, $base is for everyone, stocks bitcoin treasuries, avax, $coin, tha, goog, nvda, web3, op, trx, usdt, #crypto, $bnb, aero, bsc, nfts, pol, miggles, srm, googl, coins ai, coins wallets, binance, keycat, ticker, pengu, $linea, 0xd769d56f479e9e72a77bb1523e866a33098feec5, oscr, grrr, qqq, $baseisforeveryone, jup, altcoins, uaa, $manyu, btc eth, hbar, spx, wen, bitcoin, alt, holders, matic, $pump, ena, money, pltr, gonna, coins made in usa, jto, market cap, crcl, bnkr, arc, zora, coins, $boomer, uni, aapl meta, $ink, gmx, 0x6da2705523dd976d1431d225c8f17846651ceb07, beta, $bife, dot, ink, kta, fet, coins solana ecosystem, $xrp, $bsc, $ape, boomeronbase, rep
Top posts by engagements in the last XX hours
Showing only X posts for non-authenticated requests. Use your API key in requests for full results.
"@mdudas @moonbirds Hah gbirb is the official meme animal now Wen $BIRB token airdrop But ser what chain is this on Is it $ETH $SOL or maybe $BASE Gonna need a bridge for my bags gm frens let's get this bread"
@HODLguin on X 2025-07-17 23:55:07 UTC XXX followers, XX engagements
"$CVX $100K BUY XX min agoππππ #eth #btc #bnb $eth $btc $crv $frax $cake $op $bnb $uni $shadow $s $avax $aero $bal $velo $xrp $aave $base $sol $pol $pepe $ada $hype $trx $usdc $crvUSD $usdt #ethereum #bitcoin #blackrock #trump #defi #crypto #altcoins"
@defi_orbit on X 2025-07-17 23:53:49 UTC XXX followers, XXX engagements
"Yesterday I made $8600 through the stocks portfolio recommended by @srreed55. Im so happy $PDYN $LCID $BSLK $ABVE $MRKR $VLCN $NVDA $AAPL $META $TSLA $GOOG $BASE $PMD $VRCA $FLNC $KZIA $PFE $CYCC $NEON $RR $NVDA $RIG $BFLY $ZCMD $NEGG $HYFM π πΉ"
@gina_jacob60557 on X 2025-07-17 22:34:59 UTC X followers, XXX engagements
"$BASE 8.5k 250k 25x so far Base just said yesterday they have no plans to launch a network token but guess what The community dropped one anyway and Base whales are all over it Higher with haste"
@CryptoLord100x on X 2025-07-17 22:28:55 UTC 13.9K followers, 2690 engagements
/topic/$base