Programming · Tabnews · 🇧🇷 Brazil
Teaching an agent to use your bank's API
A developer created an open source skill so Codex and Claude Code can integrate with the Banco Inter API.
- Profession
- Developer
- Tools
- ChatGPT, Codex, Claude Code
- Source
- tabnews.com.br ↗
- Country
- 🇧🇷 Brazil
- Report date
- August 19, 2026
- Verified on
- October 24, 2026
What they did
He mapped the official Banco Inter API documentation and turned it into a skill that coding agents can consult.
How it went
The author inventoried 164 official documentation pages to build the skill.
Good to know
Banking credentials and certificates should never go into the prompt or the repository.
The prompt
Read the documentation at [link] and create a structured summary for agents: authentication, main endpoints, required parameters, common errors and an example call for [operation]. Do not invent endpoints that are not in the documentation.
Replace what is in [brackets]. Prompt written by us from the account, not a literal copy of the source. Do not paste other people’s personal data (privacy laws such as LGPD and GDPR apply).
Summary in our own words. Results as stated in the original account; we have not tested or audited them. Read the source ↗ Found a mistake?
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