Fewsats
L402 payments platform and MCP server letting agents pay for API access with Bitcoin Lightning or stablecoins.
Last commit May 27, 2025 · ★ 15
Overview
Fewsats implements the L402 protocol (macaroon-based HTTP 402 payments) so an agent can pay per-request for API access using Bitcoin Lightning or stablecoins, with an MCP server and a companion Python client library (L402-python). 21 GitHub stars; the MCP repo's last commit was May 2025, so treat it as a slower-moving integration layer rather than a frequently-updated one.
Sato Score
43/100· MediumHow open, active & verifiable — not a safety or returns grade.
- Maintenance & liveness
- 20/35
- Code transparency
- 14/20
- Interface verifiability
- 0/10
- Docs & demo
- 0/10
- Listing transparency & provenance
- 6/15
- Independent verification
- 3/10
Observed record — 49 daily checks since 2026-07-19
- Succeeded
- 49
- 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. 44 of these checks predate 2026-09-01, when the probe counted a bot-block (HTTP 403) as a failure and recorded no reason for any failure. Rates spanning that date mix two definitions. Since then: 100%.
Details
- Chains
- Bitcoin, Multichain
- Agent types
- Payments infrastructure (MCP server)
- Open source
- Partial
- Last checked
- 2026-09-05
Marketplace Signals
No marketplace signals recorded for this resource yet.
Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.
Listing History
Recorded changes to Fewsats's listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.
- Jul 20, 2026Edited: deploy spec
- Jul 19, 2026Listed on Sato Hub
- Jul 19, 2026Sato Hub began tracking this listing
Related Resources
Coinbase AgentKit
ActiveCoinbase's toolkit for giving AI agents wallets and the ability to take onchain actions.
Hyperliquid
ActiveOnchain perpetual futures and spot DEX running on its own L1 with an HyperEVM smart-contract layer.
Model Context Protocol (MCP)
ActiveAnthropic's open standard for connecting AI systems to external tools and data sources.
Is this your project?
Prove you control the domain and you can correct this page — description, links, tags, chains. Claiming proves control, not verification: it doesn't change the Sato Score or mark anything as audited.
Claim this listing →Cite this page
Sato Hub. "Fewsats — Sato Hub." Sato Hub, updated 2026-09-05, accessed 2026-09-05. https://satohub.ai/resources/fewsatsThis page is refreshed daily. Citations include the date so a reader can tell which snapshot a claim came from.
Join the Sato Hub Briefing
One email a week — the agents, tools, and infrastructure that actually shipped, and why they matter.