Teller is a command-line secrets management tool that gives developers a common interface for retrieving credentials from multiple providers. It helps reduce the need to store API keys, authentication tokens and other sensitive values directly in application configuration files or shell scripts.
The software integrates with services such as AWS Secrets Manager, Google Secret Manager, HashiCorp Vault and local environment files. A YAML configuration file defines the providers and secrets required by a project, allowing Teller to retrieve values from different sources through a consistent set of commands.
Teller can inject credentials into subprocesses, populate configuration templates and export secrets in structured formats. It also provides tools for scanning files for exposed credentials and redacting sensitive values from command output and logs.
Additional capabilities include copying secrets between providers and performing write or delete operations where supported. These features make Teller useful for development environments, automation scripts and CI/CD pipelines.
This is free and open source software.
Key Features
- Unified command-line access to secrets from multiple providers.
- Integrate with cloud secrets managers, vaults and local environment files.
- Configure providers and secret mappings through YAML files.
- Inject credentials into application subprocesses.
- Inspect available secrets without displaying complete values.
- Scan files and projects for potentially exposed credentials.
- Redact secrets from command output, logs and files.
- Populate configuration templates with retrieved values.
- Copy and synchronise secrets between supported providers.
- Write and delete credentials through compatible backends.
- Export secrets in YAML and JSON formats.
Website: github.com/tellerops/teller
Support:
Developer: The Teller Project
License: Apache License 2.0
Teller is written in Rust. Learn Rust with our recommended free books and free tutorials.
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