---
title: "Frequency (@frequency-chain)"
description: "APIs, generators, stacks and projects published by frequency-chain on Skmtc."
account: "frequency-chain"
---

# Frequency

## APIs

3 public APIs with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/frequency-chain/feed.md

- [Content Publishing Service API](https://skmtc.dev/frequency-chain/apis/content-publishing-service-api.md): Publishing: create DSNP broadcasts, replies and reactions, upload assets, manage profiles
- [Account Service](https://skmtc.dev/frequency-chain/apis/account-service.md): Accounts: look up MSA accounts, handles, control keys and delegations, and sign in with Frequency
- [Content Watcher Service API](https://skmtc.dev/frequency-chain/apis/content-watcher-service-api.md): Blockchain content scanning: search DSNP content, set scanner filters, manage webhooks and health checks