Lightning pi
A small mainnet service paid with x402 over Lightning (lnbtc): digits of pi for 100 sats, with an agent SKILL.md and a Rust client.
- Sato Score61
- ChainsBitcoin
Lightning pi is an open-source API or SDK by Mat Balez on Bitcoin, with last code activity on 2026-09-23 (Recent). Sato Score 61/100 (how open, active and verifiable it is, not a safety grade), as of 2026-11-09. How the score works →
Check what an install would ask of your keys, before you run it →Last commit Sep 23, 2026
Listed from lightning-pi-matbalez.fly.dev on 2026-09-24. Install: not attempted — no install path on record. Evidence →
Next step
Watch Lightning pi
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Claim this listing →Overview
Lightning pi, by Mat Balez, is a demonstration service built to the x402 exact-on-Lightning spec the x402 Foundation merged on 2026-09-23. Its /digits-of-pi endpoint answers HTTP 402 with a BOLT11 invoice on Bitcoin mainnet (network lnbtc:000000000019d6689c085ae165831e93), priced at 100000 millisatoshis. The repo ships a wallet-aware agent skill (SKILL.md) and a Rust client, and the receiving wallet is Lexe. It is a one-endpoint example, useful for testing an x402 Lightning client end to end, not a data product.
Sato Score
61/100· MediumHow open, active & verifiable — not a safety or returns grade.
- Maintenance & liveness
- 25/35
- Code transparency
- 16/20
- Interface verifiability
- 0/10
- Docs & demo
- 4/10
- Listing transparency & provenance
- 13/15
- Independent verification
- 3/10
Evidence — listed vs checked · what the words mean
Listed from lightning-pi-matbalez.fly.dev on 2026-09-24. Install: not attempted — no install path on record.
| Claim | Value | Evidence | Source | Checked |
|---|---|---|---|---|
| Chains supported | Bitcoin | self-reported | lightning-pi-matbalez.fly.dev | as of 2026-11-09 |
| Verification status | Unverified — not independently reviewed | self-reported | lightning-pi-matbalez.fly.dev | as of 2026-11-09 |
| Recent activity | last commit 2026-09-23 | observed | github.com/matbalez/lightning-pi | 2026-11-09 |
| Website answers | answered (HTTP 200) | observed | lightning-pi-matbalez.fly.dev | 2026-11-09 |
| Daily check record | 43 of 43 daily checks since 2026-09-27 succeededa success rate of our checks, not uptime; the source is this listing's own history | observed | — | 2026-11-08 |
| Deploys as | Fly.io, self-hostedconfidence 0.80 | self-reported | github.com/matbalez/lightning-pi | as of 2026-10-08 |
| Works with | Lexe, Money Dev Kit (MDK), x402confidence 0.85 | self-reported | github.com/matbalez/lightning-pi | as of 2026-10-08 |
| Demo | https://lightning-pi-matbalez.fly.dev/confidence 0.80 | self-reported | github.com/matbalez/lightning-pi | as of 2026-10-08 |
| Demo available | yesconfidence 0.80 | self-reported | github.com/matbalez/lightning-pi | as of 2026-10-08 |
| Sato Score | 61/100 (Medium)how open, active and verifiable — not a safety or quality grade | computed | satohub.ai | 2026-11-09 |
Self-reported rows are the project’s own words, dated when we recorded them — not a check. Only reproduced and reviewed rows carry a mark. None of these rows is a safety or quality rating.
Observed record — 44 daily checks since 2026-09-27
- Succeeded
- 44
- Failed
- 0
- Their error
- 0
- Unattributed
- 0
This is the share of our daily checks that succeeded — not an availability guarantee. A check can fail because the host was down, because our runner timed out, or because the network in between dropped it, and only the first of those is a fact about this project. Failures are split by what we can attribute; anything we cannot attribute is counted, not hidden.
Last 30 days — to 2026-11-09, one point per UTC day
A gap is a day we have no attributable observation — never a zero. Thirty points is the whole shape the free layer carries; the daily rows behind it stay in the snapshot series.
Details
- Chains
- Bitcoin
- Agent types
- Payments, Skill
- Open source
- Yes
- Pricing
- 100 sats per request (Lightning)
- Deploys as
- Fly.io, self-hosted
- Works with
- Lexe, Money Dev Kit (MDK), x402
- Last checked
- 2026-11-09
Marketplace Signals
- ▸ Demo available
Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.
Listing History
Recorded changes to Lightning pi's listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.
- Oct 8, 2026Auto-enriched: deployment options, supported integrations, has pricing, has demo +1 more
- Sep 27, 2026Edited: date added
- Sep 27, 2026Listed on Sato Hub
- Sep 27, 2026Sato Hub began tracking this listing
- Sep 24, 2026Listed on Sato Hub
Compared with
Appears in
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Reference
QuestionsWhat people ask about this pageShowHide
Questions people ask about Lightning pi
- Is Lightning pi open source?
- Yes. Lightning pi is open source; the repository is https://github.com/matbalez/lightning-pi. Checked as of 2026-11-09.
- Which chains does Lightning pi support?
- Lightning pi lists support for Bitcoin as of 2026-11-09.
- Is Lightning pi still maintained?
- The most recent code activity Sato Hub observed was on 2026-09-23 (last commit 2026-09-23), which Sato Hub labels "Recent". Posts on X are not counted as maintenance. Activity is a recency signal, not a quality judgment.
- How do I install or run Lightning pi?
- Sato Hub has no deploy spec for Lightning pi; follow the project's own documentation at https://github.com/matbalez/lightning-pi.
- Is Lightning pi verified on Sato Hub?
- No independent verification is on record for Lightning pi; its verification status is "Unverified" and its Sato Score is 61 of 100. Self-reported is not verified, and the score is not a safety, quality or returns grade.
Cite this pagePlain text, APA or BibTeXShowHide
Cite this page
Sato Hub. "Lightning pi — Sato Hub." Sato Hub, updated 2026-11-09, accessed 2026-11-09. https://satohub.ai/resources/lightning-piData last refreshed 2026-11-09; this page is rebuilt daily. Citations carry the date so a reader can tell which snapshot a claim came from. Catalog data is licensed CC-BY-4.0.
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