Nemequene

Accept bitcoin without anyone holding your money.

Nemequene only ever knows your extended public key. Payments go straight from your customer to your own wallet — we are never in the middle, and we could not take custody even if we wanted to.

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Free to start, sandbox key straight away. You only pay when you go live on mainnet.

Non-custodial by construction

We store nothing but your watch-only public key. No private key capable of spending your funds exists anywhere in this system. That is not a policy we promise to follow — it is the limit of what the software can do.

Every response carries its proof

Each reply closes with the chained hash of the record at that moment. The response is the receipt, and you can verify it again months later without asking us for anything.

A record you can audit

Events are written to an append-only log chained with SHA-256. You can prove your history is complete and has no gaps, so a missing event is something you can demonstrate rather than discover while reconciling.

How it works

  1. Share your extended public key. It is read-only. It lets us derive addresses that belong to your wallet, and nothing more.
  2. Ask for an invoice. You get a fresh address every time, derived under the BIP-84 standard and never reused across customers.
  3. We watch the chain. When the payment confirms, the invoice is marked paid and the event is appended to your verifiable record.
  4. Retries are safe. Repeat a request with the same reference and you get back the same invoice and the same address, so a customer is never charged twice and no address is wasted.

Pricing

Every plan includes the full API, proof-carrying responses and the verifiable record. You are never charged a percentage of what you collect — your money never touches us.

Sandbox
Free
100 API calls per month
Test networks only
Start free
Starter
$29/mo
2,500 invoices per month
Mainnet
Choose
Growth
$99/mo
15,000 invoices per month
Mainnet
Choose
Scale
$299/mo
100,000 invoices per month
Mainnet
Choose

Beyond your plan: $0.01 per call, billed monthly in arrears. No setup fee, no percentage of volume, cancel whenever you like. We invoice you in bitcoin over this very rail — the same code you are buying.

On the way

Announced only when it is close. These are not purchasable yet and carry no price here on purpose.

Attestation & audit endpoints

Daily signed anchoring of your record plus issued certificates, so an auditor can check your history without trusting either of us. Days away.

Dedicated attested nodes

Your own isolated capsule and ledger, with a proof that it cannot touch your funds. Waitlist — tell us if you need it and we will prioritise.

Status: early. The service works end to end and its guarantees are covered by automated checks, including two exhaustive machine-checked proofs — one of the invoice lifecycle, one of the record's concurrency protocol. It is still young. If you are moving real money, talk to us first and let us start small together.

Built from the ground up

The language, compiler, web server, TLS stack, datastore and certificate client behind this service were all written from scratch, with no third-party dependencies. The certificate securing this page was issued by our own software.