# iov-one/weave

Easy-to-use SDK to build Tendermint ABCI applications

Repository: https://github.com/iov-one/weave
Canonical: https://ross.abutalabs.com/products/iov-one-weave
Homepage: https://weave.iov.one/docs/intro.html
Language: Go
License: NOASSERTION
License Family: other
Topics: tendermint, blockchain, abci, framework
Last push: 2023-03-07T03:42:20+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3146, "days_push": 1275, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1105, forks 45 (observed 2026-08-28T04:03:36.432951+00:00)

## What it is
IOV Weave is a Go framework for building custom ABCI applications that run on the Tendermint BFT proof-of-stake consensus engine. It provides commonly used blockchain functionality out of the box and a simple routing/middleware model inspired by web application frameworks, favoring ease of use over the more complex cosmos-sdk.

## Use cases
- build a custom blockchain app on tendermint
- create an abci application in go
- launch a proof-of-stake chain with common features
- prototype a blockchain state machine quickly
- add custom business logic to a tendermint chain
- simpler alternative to cosmos-sdk for small chains

## When to choose
- you want to build a tendermint-based chain with simple, opinionated defaults
- you prefer a gentle learning curve over cosmos-sdk's advanced features
- your design doesn't need multiple merkle stores or advanced sdk features

## When to avoid
- you need advanced features like multiple merkle stores in one app - use cosmos-sdk instead
- you need a framework with active ongoing development and recent tendermint versions
- you are not building a blockchain or ABCI application

## Facets
- artifact type: framework
- maturity: maintenance
- function: sdk, middleware, routing, serialization, cryptography
- domain: blockchain, developer-tools, backend
- platform: go, cross-platform
- tags: tendermint, abci, blockchain-framework, proof-of-stake, cosmos-sdk-inspired, linux, macos

## Member repositories
- iov-one/weave (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:36.432951+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 2026-08-30T06:44:34.351231+00:00, confidence not recorded.
  - readme: https://github.com/iov-one/weave (fetched 2026-08-28T04:03:36.432951+00:00, sha 295764f9534c)
- Data as of 2026-08-30T08:39:29.467469+00:00.