# nutsfinance/tapio-eth

Repository: https://github.com/nutsfinance/tapio-eth
Canonical: https://ross.abutalabs.com/products/tapio-eth
Language: TypeScript
License: MIT
License Family: permissive
Last push: 2025-12-04T15:04:47+00:00

## Health v2 (maintenance only)
Score: 55/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 55, release rhythm 35, longevity 88
- inputs: {"age_days": 1234, "days_push": 272, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1139, forks 36 (observed 2026-08-28T04:03:44.226526+00:00)

## What it is
Tapio is a DeFi liquidity aggregator protocol for self-pegging assets, implemented as a set of Ethereum smart contracts based on CurveFi's StableSwap algorithm. It issues rebasing SPA tokens representing stable pools (e.g., stETH-ETH, USDT-USDC) that can be swapped, redeemed, and wrapped for use across DeFi.

## Use cases
- create stableswap AMM pools for staked ETH pairs
- swap between self-pegging assets like stETH and ETH
- mint and redeem SPA liquidity tokens
- wrap SPA tokens for cross-chain DeFi integration
- earn yield from pool swap fees and rewards

## When to choose
- you need efficient swaps between correlated stable or liquid-staking assets
- you want a CurveFi-style StableSwap pool with a factory for new pools
- you need a rebasing LP token usable as a medium of exchange in DeFi

## When to avoid
- you need a general-purpose DEX for uncorrelated assets
- you want a non-Ethereum or non-EVM protocol
- you need a simple token swap without liquidity pool mechanics

## Facets
- artifact type: application
- maturity: active
- function: trading
- domain: fintech, blockchain
- platform: -
- tags: defi, stableswap, amm, liquidity-pools, spa-token, rebase-token, curvefi, staked-eth, arbitrage, erc20, smart-contracts, cryptocurrency, ethereum, solidity, typescript

## Member repositories
- nutsfinance/tapio-eth (main) score 55

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:44.226526+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:36:05.855847+00:00, confidence not recorded.
  - readme: https://github.com/nutsfinance/tapio-eth (fetched 2026-08-28T04:03:44.226526+00:00, sha 8a628f721a69)
- Data as of 2026-08-30T08:39:29.467469+00:00.