🔐 Get API Access
Pay 100 PEPE to get 24-hour API access. All endpoints except public ones require an API key.
Amount:
100 PEPE
Duration:
24 hours
Payment Address:
Pu2xMCd9JpaxUGCCHzT8zmExvsTp4CyRkT
✅ Payment Confirmed!
Your API Key:
Use this key in the X-API-Key header for API requests.
Valid for 24 hours.
Public Endpoints (No Key Required):
/blocks/tip/height, /blocks/tip/hash, /fee-estimates, /mempool
Blocks
Tip Information
GET
/blocks/tip/height
Get the latest block height
curl https://pep-api.onchainfun.xyz/api/blocks/tip/height
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GET
/blocks/tip/hash
Get the latest block hash
curl https://pep-api.onchainfun.xyz/api/blocks/tip/hash
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Block by Height
GET
/block-height/{height}
Get block hash at a specific height
| Parameter | Type | Description |
|---|---|---|
| height | integer | Block height |
curl https://pep-api.onchainfun.xyz/api/block-height/0
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Block Details
GET
/block/{hash}
Get detailed block information including metadata, transaction count, size, and weight
curl https://pep-api.onchainfun.xyz/api/block/BLOCKHASH
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GET
/block/{hash}/txids
Get all transaction IDs in a block
curl https://pep-api.onchainfun.xyz/api/block/BLOCKHASH/txids
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GET
/block/{hash}/txs/{start_index}
Get block transactions with pagination.
start_index must be a multiple of 25 (default page size).curl https://pep-api.onchainfun.xyz/api/block/BLOCKHASH/txs/0
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Address & Scripthash
GET
/address/{address}
Get address statistics including chain_stats (funded/spent txo counts and sums) and mempool_stats
curl https://pep-api.onchainfun.xyz/api/address/PbwHwFpGaDYRejHKRqvsrmyKH1QWyMEzPD
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GET
/address/{address}/utxo
Get unspent transaction outputs (UTXOs) for an address. Returns array of UTXO objects with txid, vout, value, and status.
curl https://pep-api.onchainfun.xyz/api/address/PbwHwFpGaDYRejHKRqvsrmyKH1QWyMEzPD/utxo
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GET
/address/{address}/txs
Get transaction history for an address (mempool + confirmed), sorted by newest first
| Query Parameter | Type | Description |
|---|---|---|
| max_txs | integer | Maximum transactions to return |
| after_txid | string | Start after this transaction ID (for pagination) |
curl "https://pep-api.onchainfun.xyz/api/address/PbwHwFpGaDYRejHKRqvsrmyKH1QWyMEzPD/txs?max_txs=10"
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GET
/address/{address}/txs/mempool
Get unconfirmed (mempool) transactions for an address
curl https://pep-api.onchainfun.xyz/api/address/PbwHwFpGaDYRejHKRqvsrmyKH1QWyMEzPD/txs/mempool
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GET
/address/{address}/txs/chain/{last_seen_txid}
Get confirmed transactions after a specific transaction ID
curl https://pep-api.onchainfun.xyz/api/address/ADDRESS/txs/chain/LAST_TXID
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Scripthash Support: All address endpoints also work with scripthash. Replace
/address/{address} with /scripthash/{scripthash}. For multi-address queries, use POST /addresses/txs or POST /scripthashes/txs.
Transaction
GET
/tx/{txid}
Get full transaction details including inputs, outputs, fees, and confirmation status
curl https://pep-api.onchainfun.xyz/api/tx/TXID
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GET
/tx/{txid}/hex
Get raw transaction in hex format
curl https://pep-api.onchainfun.xyz/api/tx/TXID/hex
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GET
/tx/{txid}/status
Get transaction confirmation status (block_height, confirmed, etc.)
curl https://pep-api.onchainfun.xyz/api/tx/TXID/status
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GET
/tx/{txid}/outspends
Get spending information for all outputs in a transaction
curl https://pep-api.onchainfun.xyz/api/tx/TXID/outspends
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POST
/tx
Broadcast a raw transaction to the network. Returns the transaction ID on success.
curl -X POST https://pep-api.onchainfun.xyz/api/tx \
-H "Content-Type: text/plain" \
-d "0100000001..."
Try it out
Mempool
GET
/mempool
Get mempool statistics including transaction count, total vsize, total fees, and fee histogram
curl https://pep-api.onchainfun.xyz/api/mempool
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GET
/mempool/txids
Get all transaction IDs currently in the mempool
curl https://pep-api.onchainfun.xyz/api/mempool/txids
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GET
/mempool/recent
Get recent mempool transactions overview
curl https://pep-api.onchainfun.xyz/api/mempool/recent
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Fee Estimates
GET
/fee-estimates
Get fee estimates for different confirmation targets (in sat/vB or equivalent units)
curl https://pep-api.onchainfun.xyz/api/fee-estimates
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Response Example
{
"1": 1001.863,
"6": 1001.863,
"15": 1001.863,
"25": 1001.863
}
Examples
Get Latest Block
curl https://pep-api.onchainfun.xyz/api/blocks/tip/height
Get Address Statistics
curl https://pep-api.onchainfun.xyz/api/address/PbwHwFpGaDYRejHKRqvsrmyKH1QWyMEzPD
Get Address UTXOs
curl https://pep-api.onchainfun.xyz/api/address/PbwHwFpGaDYRejHKRqvsrmyKH1QWyMEzPD/utxo
Get Transaction History
curl "https://pep-api.onchainfun.xyz/api/address/PbwHwFpGaDYRejHKRqvsrmyKH1QWyMEzPD/txs?max_txs=5"
Broadcast Transaction
curl -X POST https://pep-api.onchainfun.xyz/api/tx \
-H "Content-Type: text/plain" \
-d "0100000001..."