Is your Base transaction stuck?
Live Base gas: the tiny L2 tip and base fee plus the L1 data fee every Base transaction pays for posting to Ethereum, for a transfer, an ERC-20 transfer and a swap, in dollars.
Live fees: Bitcoin · Ethereum · Polygon · Base · Avalanche. Public JSON API: OpenAPI.
Frequently asked questions
- How does Konfirm work?
- It looks the transaction up on public nodes and explorers, compares its fee with what recent blocks and the mempool accept, and explains the result with the evidence and assumptions behind it. It never sees your wallet or keys.
- Why is my Bitcoin transaction still pending?
- Usually its fee rate (sat/vB) is below what miners are taking right now, so higher-paying transactions go first. It can also wait on an unconfirmed parent. Paste the txid above to see which one applies.
- What are RBF and CPFP?
- Replace-By-Fee: the sender signs a new version of the transaction with a higher fee. Child-Pays-For-Parent: whoever receives an output spends it with a high fee, pulling the parent along. Both need a wallet that supports them; Konfirm only shows the numbers.
- My Ethereum, Polygon, Base or Avalanche transaction is stuck behind another one. What now?
- Transactions from one account confirm in nonce order. If an earlier nonce is still pending, later ones wait. Speed up or cancel the earliest pending one first.
- Why is my Polygon transaction stuck?
- Usually its max fee is below the current base fee (it jumps when the network is busy), its tip is under the network minimum (about 25-30 gwei), or an earlier nonce is still pending. Paste the hash to see which one applies and what to set instead.
- Why is there no confirmation probability?
- Because it has not been measured yet. Konfirm records every estimate and checks it against what later blocks did; a probability will only be shown once that evidence supports it.
- Is my data stored?
- Konfirm does not ask for an address or a wallet. Your browser looks the transaction up directly at mempool.space, Blockstream or PublicNode (they see your IP, as with any explorer) and sends the result to Konfirm only to diagnose it; if that fails, Konfirm looks it up for you. Prices come from Coinbase, mempool.space or Kraken, also fetched by your browser. Nothing is stored about you.
- How long does a Bitcoin transaction take to confirm?
- A new block comes about every 10 minutes on average, but blocks arrive at random. A transaction paying at least the current fast rate usually confirms in the next block or two; one paying less waits until fewer higher-paying transactions are ahead of it. Paste the txid to see where it stands.
- What gas fee should I set on Base?
- Base blocks usually have room, so a tiny priority tip (about 0.001 gwei) is enough; every transaction also pays a small L1 data fee for posting it to Ethereum. Konfirm shows both, in dollars, for a transfer, an ERC-20 transfer and a swap.