Element NFT Market 🌊

Skill for querying NFT collection statistics, portfolios, and monitoring active trading events on the Element Market.

🛡️ Security & Privacy

• Consent Protocol: The agent MUST explicitly ask the user for permission and receive a positive confirmation before querying any wallet address.
• Privacy Protocol: The agent MUST output all image links strictly as plain text URLs.
• API Scope: This skill performs read-only queries.

🚀 Setup

Please configure the ELEMENT_API_KEY environment variable within your OpenClaw instance.

🧠 Agent Knowledge Base: Token Mapping

🚨 SYSTEM RULE for Data Interpretation: When the API response contains a paymentToken address, you MUST use the following mapping table to determine the correct currency symbol and decimals for formatting the price. If a token is not listed, default to the native chain currency. Pay strict attention to the Decimals column for price calculation.

📊 Queries & Monitors

Get Collection Stats

Use this to check the detailed volume, floor price, 24h average price, and the latest trade price for a specific NFT collection by its slug.

SLUG="boredapeyachtclub"
CHAIN="eth"
HOST="api.element.market"

curl -s -G "https://${HOST}/openapi/v1/collection/stats" \
  --data-urlencode "chain=${CHAIN}" \
  --data-urlencode "collection_slug=${SLUG}" \
  --header "X-Api-Key: ${ELEMENT_API_KEY}" \
  --header "accept: application/json" | jq '{volume24h: .data.stats1D.volume, saleCount24h: .data.stats1D.saleCount, floorPrice: .data.collectionFloorPrice.floorPriceSource, avgPrice24h: .data.stats1D.avgPrice, lastTradePrice: .data.lastTradePrice}'

Get Ranking List

Use this to fetch the top trending NFT collections on a specific chain.

SORTTYPE="TOP"
CHAIN="eth"
LEVEL="L1D"
LIMIT="10"
HOST="api.element.market"

curl -s -G "https://${HOST}/openapi/v1/collection/ranking" \
  --data-urlencode "chain=${CHAIN}" \
  --data-urlencode "sort_type=${SORTTYPE}" \
  --data-urlencode "level=${LEVEL}" \
  --data-urlencode "limit=${LIMIT}" \
  --header "X-Api-Key: ${ELEMENT_API_KEY}" \
  --header "accept: application/json" | jq '[.data.rankingList[].collectionRank | {name: .collection.name, slug: .collection.slug, floorPrice: .floorPrice, volume: .volume}]' 

Get Wallet NFT Portfolio (Asset List)

Use this to get the list of NFTs owned by a specific wallet address.

• CHAIN can be "eth", "bsc", etc.
• WALLET_ADDRESS is the 0x address.
• 🚨 SYSTEM RULE: You MUST ask for user confirmation before executing this query.
• LIMIT is the number of assets to return.

CHAIN="eth"
WALLET_ADDRESS="" 
LIMIT="10"
HOST="api.element.market"

curl -s -G "https://${HOST}/openapi/v1/account/assetList" \
  --data-urlencode "chain=${CHAIN}" \
  --data-urlencode "wallet_address=${WALLET_ADDRESS}" \
  --data-urlencode "limit=${LIMIT}" \
  --header "X-Api-Key: ${ELEMENT_API_KEY}" \
  --header "accept: application/json" | jq '[.data.assetList[].asset | {name: .name, collection: .collection.name, tokenId: .tokenId, type: .tokenType, quantity: .ownedQuantity, image: .imagePreviewUrl}]'

Get Received Offers (Offers on your NFTs)

Use this to check the highest offers (bids) received on the NFTs owned by a specific wallet.

• CHAIN can be "eth", "bsc", etc.
• WALLET_ADDRESS is the 0x address.
• 🚨 SYSTEM RULE: You MUST ask for user confirmation before executing this query. You MUST print the image parameter exactly as a plain text URL.

CHAIN="bsc"
WALLET_ADDRESS="" 
LIMIT="10"
HOST="api.element.market"

curl -s -G "https://${HOST}/openapi/v1/account/offerReceived" \
  --data-urlencode "chain=${CHAIN}" \
  --data-urlencode "wallet_address=${WALLET_ADDRESS}" \
  --data-urlencode "limit=${LIMIT}" \
  --header "X-Api-Key: ${ELEMENT_API_KEY}" \
  --header "accept: application/json" | jq '[.data.assetList[] | select(.orderData.bestBid != null) | {name: .asset.name, collection: .asset.collection.name, slug: .asset.collection.slug, image: .asset.imagePreviewUrl, offerPrice: .orderData.bestBid.price, offerUSD: .orderData.bestBid.priceUSD, offerer: .orderData.bestBid.maker}]'

Get Collection Slug by Contract Address (Address Resolver)

Use this tool to find a collection's slug by its contract address. Automatically call Get Collection Stats using the resolved slug.

CHAIN="bsc"
CONTRACT_ADDRESS="0xed5af388653567af2f388e6224dc7c4b3241c544"
HOST="api.element.market"

curl -s -G "https://${HOST}/openapi/v1/contract" \
  --data-urlencode "chain=${CHAIN}" \
  --data-urlencode "contract_address=${CONTRACT_ADDRESS}" \
  --header "X-Api-Key: ${ELEMENT_API_KEY}" \
  --header "accept: application/json" | jq '{name: .data.collection.name, slug: .data.collection.slug, image: .data.collection.imageUrl}'

Check Recent Wallet Sales Activity (All-in-One Monitor)

🔴 PRIMARY TRIGGER: Use whenever user asks "Did I sell any NFTs recently?". Requires explicit user consent.

• CHAIN can be "eth", "bsc", etc.
• WALLET_ADDRESS is the 0x address.
• LIMIT is the number of recent activities.
• 🚨 SYSTEM RULES:

1. Consent: You MUST ask for user confirmation before executing this query.
2. Action: If from is the user, output "Sell". If to is the user, output "Buy".
3. Formatting: Print the image URL as plain text only. 🚨 NFT Sale Monitor Alert! [🖼️ View Collection Image] Collection: [collection] Token ID: [tokenId] 💰 Transaction Details:

• Action: [Buy / Sell]
• Price: [salePrice] [Currency]
• Counterparty: [from/to]
• Time: [time]
• Tx Receipt: https://[Chain_Scan_Domain]/tx/[txHash]

📊 Latest Collection Stats:

• Current Floor Price: [floorPrice] [Currency]
• 24H Average Price: [avgPrice24h] [Currency]
• Last Trade Price: [lastTradePrice] [Currency]

💡 Agent Insight: (1-sentence analysis comparing the salePrice to the floorPrice/lastTradePrice.)

CHAIN="bsc"
WALLET_ADDRESS="" 
LIMIT="5"
HOST="api.element.market"

ACTIVITIES=$(curl -s -G "https://${HOST}/openapi/v1/account/activity" \
  --data-urlencode "chain=${CHAIN}" \
  --data-urlencode "wallet_address=${WALLET_ADDRESS}" \
  --data-urlencode "event_names=Sale" \
  --data-urlencode "limit=${LIMIT}" \
  --header "X-Api-Key: ${ELEMENT_API_KEY}" \
  --header "accept: application/json" | jq -c '.data.activityList[].accountActivity | select(. != null)')

JSON_RESULT="["

while IFS= read -r activity; do
  if [ -z "$activity" ]; then continue; fi
  
  CONTRACT=$(echo "$activity" | jq -r '.contractAddress')
  TOKEN_ID=$(echo "$activity" | jq -r '.tokenId')
  PRICE_ETH=$(echo "$activity" | jq -r 'if .price != null then ((.price | tonumber) / 1000000000000000000) else 0 end')
  FROM_ADDR=$(echo "$activity" | jq -r '.fromAddress')
  TO_ADDR=$(echo "$activity" | jq -r '.toAddress')
  TIME=$(echo "$activity" | jq -r '.eventTime')
  TX_HASH=$(echo "$activity" | jq -r '.txHash')

  CONTRACT_RES=$(curl -s -G "https://${HOST}/openapi/v1/contract" \
    --data-urlencode "chain=${CHAIN}" \
    --data-urlencode "contract_address=${CONTRACT}" \
    --header "X-Api-Key: ${ELEMENT_API_KEY}" \
    --header "accept: application/json")
  
  COLLECTION_NAME=$(echo "$CONTRACT_RES" | jq -r '.data.collection.name // "Unknown"')
  SLUG=$(echo "$CONTRACT_RES" | jq -r '.data.collection.slug // empty')
  IMAGE_URL=$(echo "$CONTRACT_RES" | jq -r '.data.collection.imageUrl // ""')

  FLOOR_PRICE=0
  AVG_PRICE=0
  LAST_PRICE=0
  
  if [ -n "$SLUG" ] && [ "$SLUG" != "null" ]; then
    STATS_RES=$(curl -s -G "https://${HOST}/openapi/v1/collection/stats" \
      --data-urlencode "chain=${CHAIN}" \
      --data-urlencode "collection_slug=${SLUG}" \
      --header "X-Api-Key: ${ELEMENT_API_KEY}" \
      --header "accept: application/json")
      
    FLOOR=$(echo "$STATS_RES" | jq -r '.data.collectionFloorPrice.floorPriceSource // empty')
    AVG=$(echo "$STATS_RES" | jq -r '.data.stats1D.avgPrice // empty')
    LAST=$(echo "$STATS_RES" | jq -r '.data.lastTradePrice // empty')
    
    [ -n "$FLOOR" ] && [ "$FLOOR" != "null" ] && FLOOR_PRICE=$FLOOR
    [ -n "$AVG" ] && [ "$AVG" != "null" ] && AVG_PRICE=$AVG
    [ -n "$LAST" ] && [ "$LAST" != "null" ] && LAST_PRICE=$LAST
  fi

  ITEM=$(jq -n \
    --arg name "$COLLECTION_NAME" \
    --arg image "$IMAGE_URL" \
    --arg tokenId "$TOKEN_ID" \
    --arg price "$PRICE_ETH" \
    --arg from "$FROM_ADDR" \
    --arg to "$TO_ADDR" \
    --arg time "$TIME" \
    --arg txHash "$TX_HASH" \
    --arg floor "$FLOOR_PRICE" \
    --arg avg "$AVG_PRICE" \
    --arg last "$LAST_PRICE" \
    '{collection: $name, tokenId: $tokenId, image: $image, salePrice: $price, from: $from, to: $to, time: $time, txHash: $txHash, floorPrice: $floor, avgPrice24h: $avg, lastTradePrice: $last}')
    
  JSON_RESULT="${JSON_RESULT}${ITEM},"
done \x3C\x3C\x3C "$ACTIVITIES"

if [ "$JSON_RESULT" = "[" ]; then
  echo "[]"
else
  echo "${JSON_RESULT%?}]"
fi

Check New Received Offers (Offer Monitor)

🔴 PRIMARY TRIGGER: Use whenever user asks "Did I get any new offers?". Requires explicit user consent.

• 🚨 SYSTEM RULES:

1. Consent: You MUST ask for user confirmation before executing this query.
2. Formatting: Print the image URL as plain text only. 🔔 New NFT Offer Alert! [🖼️ View NFT Image] Item: [name] Collection: [collection] 💰 Offer Details:

• Offer Price: [offerPrice] [Currency]
• Offerer: [maker]
• Offer Time: [listingTime]

📊 Collection Stats (24H):

• Current Floor Price: [floorPrice] [Currency]
• 24H Average Price: [avgPrice24h] [Currency]
• Last Trade Price: [lastTradePrice] [Currency]
• 24H Sales Count: [saleCount24h]

💡 Agent Insight: (1-sentence analysis comparing offerPrice to floorPrice/lastTradePrice.)

CHAIN="bsc"
WALLET_ADDRESS="" 
LIMIT="10"
HOST="api.element.market"

OFFERS=$(curl -s -G "https://${HOST}/openapi/v1/account/offerReceived" \
  --data-urlencode "chain=${CHAIN}" \
  --data-urlencode "wallet_address=${WALLET_ADDRESS}" \
  --data-urlencode "limit=${LIMIT}" \
  --header "X-Api-Key: ${ELEMENT_API_KEY}" \
  --header "accept: application/json" | jq -c '.data.assetList[] | select(.orderData.bestBid != null)')

JSON_RESULT="["

while IFS= read -r offer; do
  if [ -z "$offer" ]; then continue; fi
  
  NAME=$(echo "$offer" | jq -r '.asset.name // "Unknown"')
  COLLECTION_NAME=$(echo "$offer" | jq -r '.asset.collection.name // "Unknown"')
  SLUG=$(echo "$offer" | jq -r '.asset.collection.slug // empty')
  IMAGE_URL=$(echo "$offer" | jq -r '.asset.imagePreviewUrl // ""')
  PRICE=$(echo "$offer" | jq -r '.orderData.bestBid.price // 0')
  MAKER=$(echo "$offer" | jq -r '.orderData.bestBid.maker // "Unknown"')
  LISTING_TIME=$(echo "$offer" | jq -r '.orderData.bestBid.listingTime | todateiso8601')

  FLOOR_PRICE=0
  AVG_PRICE=0
  SALE_COUNT=0
  LAST_PRICE=0

  if [ -n "$SLUG" ] && [ "$SLUG" != "null" ]; then
    STATS_RES=$(curl -s -G "https://${HOST}/openapi/v1/collection/stats" \
      --data-urlencode "chain=${CHAIN}" \
      --data-urlencode "collection_slug=${SLUG}" \
      --header "X-Api-Key: ${ELEMENT_API_KEY}" \
      --header "accept: application/json")
      
    FLOOR=$(echo "$STATS_RES" | jq -r '.data.collectionFloorPrice.floorPriceSource // empty')
    AVG=$(echo "$STATS_RES" | jq -r '.data.stats1D.avgPrice // empty')
    SALES=$(echo "$STATS_RES" | jq -r '.data.stats1D.saleCount // empty')
    LAST=$(echo "$STATS_RES" | jq -r '.data.lastTradePrice // empty')
    
    [ -n "$FLOOR" ] && [ "$FLOOR" != "null" ] && FLOOR_PRICE=$FLOOR
    [ -n "$AVG" ] && [ "$AVG" != "null" ] && AVG_PRICE=$AVG
    [ -n "$SALES" ] && [ "$SALES" != "null" ] && SALE_COUNT=$SALES
    [ -n "$LAST" ] && [ "$LAST" != "null" ] && LAST_PRICE=$LAST
  fi

  ITEM=$(jq -n \
    --arg name "$NAME" \
    --arg coll "$COLLECTION_NAME" \
    --arg img "$IMAGE_URL" \
    --arg price "$PRICE" \
    --arg maker "$MAKER" \
    --arg time "$LISTING_TIME" \
    --arg floor "$FLOOR_PRICE" \
    --arg avg "$AVG_PRICE" \
    --arg sales "$SALE_COUNT" \
    --arg last "$LAST_PRICE" \
    '{name: $name, collection: $coll, image: $img, offerPrice: $price, maker: $maker, listingTime: $time, floorPrice: $floor, avgPrice24h: $avg, saleCount24h: $sales, lastTradePrice: $last}')
    
  JSON_RESULT="${JSON_RESULT}${ITEM},"
done \x3C\x3C\x3C "$OFFERS"

if [ "$JSON_RESULT" = "[" ]; then
  echo "[]"
else
  echo "${JSON_RESULT%?}]"
fi

🔗 Links

• API Documentation: https://element.readme.io/reference/api-overview
• Create API Key: https://element.market/apikeys
• Mainnet: https://element.market