We’ve been setting up the Discourse MCP server to connect our Discourse instance to Claude Desktop via config files. When using a single-use API key with granular access controls, the MCP server throws a 403 Forbidden error because it can’t read about.json. Snippet from the Console Logs [2026-03-1…

it seems reasonable to include access to about.json, I’ve opened a PR and will run this by the team DEV: allow granular api keys access to about.json (#38948) main ← dev-about-api-scope opened 01:5…

[imagem] aangi: The API username or key is invalid Also, is this a misleading error we can improve?

Hi Michael, it does seem like a misleading error. However, because we cannot change the scope of the user once its been created, it is possible that in case of granular access, the API username is being rendered invalid because there is no about.json file.

Usuário da API com acesso granular não consegue ler sobre.json | Discourse MCP

Suporte

supermathie (Michael Brown) Março 29, 2026, 3:11am 4

Além disso, esse é um erro enganoso que podemos melhorar?

2 curtidas

Tópico		Respostas	Visualizações
User API keys specification Integrations rest-api , reference	70	35122	22 de Setembro de 2025
Allow API use by regular users, not just admins Dev rest-api	7	1296	29 de Abril de 2023
Access via Discourse API, key and/or user rejected Dev rest-api	2	850	1 de Dezembro de 2023
403 error when connecting Zapier to Discourse Support	14	912	25 de Outubro de 2020
Get an API key's scopes and user level via the API Dev rest-api	0	597	16 de Novembro de 2023

Usuário da API com acesso granular não consegue ler sobre.json | Discourse MCP

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