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Espo Commands

The espo namespace provides access to the Espo indexer for alkanes data and AMM analytics. Espo offers two modules: Essentials for core alkanes data and AMM Data for trading analytics.

Example commands​

These examples assume the Espo endpoint is configured as shown under Configuration.

Essentials Module​

Ping the Espo server to check connectivity:

$ alkanes-cli -p mainnet espo ping

Get the current Espo indexer height:

$ alkanes-cli -p mainnet espo get-height

Get alkanes balances for an address:

$ alkanes-cli -p mainnet espo get-address-balances bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh

Get holders of an alkane token (paginated):

$ alkanes-cli -p mainnet espo get-holders 2:0

Get total holder count for an alkane:

$ alkanes-cli -p mainnet espo get-holders-count 2:0

AMM Data Module​

Ping the AMM Data module:

$ alkanes-cli -p mainnet espo ammdata-ping

Get OHLCV candlestick data for a pool:

$ alkanes-cli -p mainnet espo get-candles 840100:5

Get all AMM pools with pagination:

$ alkanes-cli -p mainnet espo get-pools

Find optimal multi-hop swap route:

$ alkanes-cli -p mainnet espo find-best-swap-path 840000:1 840000:2

Commands Overview​

Essentials Module​

Core alkanes data queries including balances, holders, and storage.

  • ping: Ping the Espo server
  • get-height: Get current Espo indexer height
  • get-address-balances: Get alkanes balances for an address
  • get-address-outpoints: Get outpoints containing alkanes for an address
  • get-outpoint-balances: Get alkanes balances at a specific outpoint
  • get-holders: Get holders of an alkane token (paginated)
  • get-holders-count: Get total holder count for an alkane
  • get-keys: Get storage keys for an alkane contract (paginated)

AMM Data Module​

Trading and liquidity analytics for AMM pools.

  • ammdata-ping: Ping the AMM Data module
  • get-candles: Get OHLCV candlestick data for a pool
  • get-trades: Get trade history for a pool
  • get-pools: Get all pools with pagination
  • find-best-swap-path: Find optimal multi-hop swap route
  • get-best-mev-swap: Find best MEV arbitrage opportunity

Configuration​

Configure the Espo RPC endpoint:

# Using environment variable
export ESPO_RPC_URL=https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo

# Or as a flag
alkanes-cli --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo espo ping

The API key is required: a request to https://mainnet.subfrost.io/v4/espo without a key returns HTTP 401 with {"code":"INVALID_API_KEY"}.

espo ping​

Ping the Espo server to check connectivity.

alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo ping

Example Output:

pong

espo get-height​

Get the current block height processed by the Espo indexer.

alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo get-height

Example Output:

Espo Height: 825000

espo get-address-balances​

Get alkanes balances for a Bitcoin address. Optionally include detailed outpoint information.

# Basic balance query
alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo get-address-balances bc1q...

# With outpoint details
alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo get-address-balances bc1q... --include-outpoints

Example Output:

Alkanes Balances
═════════════════════════════════════
Address: bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh

Alkane ID      Balance
─────────────  ─────────────
840000:1       1000000
840000:2       500000

Total Alkanes: 2

espo get-holders​

Get paginated list of holders for an alkane token.

# First page (100 holders)
alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo get-holders 2:0

# Specific page with custom limit
alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo get-holders 2:0 --page 2 --limit 50

Example Output:

Holders for Alkane 2:0
═════════════════════════════════════
Page: 0 | Limit: 100 | Total: 1523

Address                                          Balance
──────────────────────────────────────────────  ──────────
bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh    10000000
bc1q2j3k4l5m6n7o8p9q0r1s2t3u4v5w6x7y8z9    5000000
...

Has More: true

espo get-candles​

Get OHLCV candlestick data for a liquidity pool.

# Get 1-hour candles for base token
alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo get-candles 840100:5 \
    --timeframe 1h \
    --side base \
    --limit 100

# Get daily candles for quote token
alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo get-candles 840100:5 \
    --timeframe 1d \
    --side quote \
    --limit 30

Timeframe Options:

  • 10m: 10 minutes
  • 1h: 1 hour
  • 1d: 1 day
  • 1w: 1 week
  • 1M: 1 month

Example Output:

Candles for Pool 840100:5
═════════════════════════════════════
Timeframe: 1h | Side: base | Page: 0

Time                Open      High      Low       Close     Volume
──────────────────  ────────  ────────  ────────  ────────  ──────────
2024-12-15 10:00    1000000   1050000   990000    1020000   5000000
2024-12-15 11:00    1020000   1080000   1010000   1050000   6000000
...

Total: 100

espo find-best-swap-path​

Find the optimal multi-hop swap path between two tokens.

alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo find-best-swap-path 840000:1 840000:2 \
    --mode exact_in \
    --amount-in 1000000 \
    --amount-out-min 900000 \
    --max-hops 3

Modes:

  • exact_in: Specify input amount, calculate output
  • exact_out: Specify output amount, calculate input
  • implicit: Let the system determine the best approach

Example Output:

Best Swap Path
═════════════════════════════════════
Token In:  840000:1
Token Out: 840000:2
Mode:      exact_in

Amount In:  1000000
Amount Out: 950000
Hops:       2

Route:
  1. Pool 840100:5  (840000:1 → 840000:3)
     Amount In:  1000000
     Amount Out: 1500000

  2. Pool 840100:6  (840000:3 → 840000:2)
     Amount In:  1500000
     Amount Out: 950000

espo get-best-mev-swap​

Find the best MEV arbitrage opportunity for a token.

alkanes-cli -p mainnet \
  --espo-rpc-url https://mainnet.subfrost.io/v4/YOUR_API_KEY/espo \
  espo get-best-mev-swap 840000:1 \
    --fee-bps 30 \
    --max-hops 3

Example Output:

Best MEV Opportunity
═════════════════════════════════════
Token:      840000:1
Fee (bps):  30 (0.3%)
Max Hops:   3

Amount In:  1000000
Amount Out: 1050000
Profit:     50000 (5%)

Arbitrage Route:
  1. Pool 840100:5  (840000:1 → 840000:2)
     Amount: 1000000 → 2000000

  2. Pool 840100:6  (840000:2 → 840000:1)
     Amount: 2000000 → 1050000

Net Profit: 50000

Notes​

  • All pagination uses 0-based page numbers
  • Alkane IDs are in format block:tx (e.g., 840000:1)
  • Outpoints are in format txid:vout
  • AMM Data methods require AMM pools to be indexed
  • The Espo indexer must be configured and running
  • Use --help on any command to see all available options

REST API Equivalent​

These Espo commands correspond to JSON-RPC methods:

  • espo ping → ping
  • espo get-height → get_espo_height
  • espo get-address-balances → get_address_balances
  • espo get-candles → ammdata.get_candles
  • espo find-best-swap-path → ammdata.find_best_swap_path

See the JSON-RPC Espo documentation for API details.