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What is teller?

polarathene/teller — explained in plain English

Analysis updated 2026-07-18 · repo last pushed 2024-01-21

Audience · ops devopsComplexity · 3/5DormantSetup · moderate

In one sentence

A command-line secrets manager that pulls passwords and API keys from vaults like HashiCorp Vault or AWS Secrets Manager straight into your process, never your shell history.

Mindmap

mindmap
  root((Teller))
    What it does
      Fetches secrets
      Injects into process
      Avoids env file leaks
    Tech stack
      CLI tool
      Vault integrations
      GitHub Actions
    Use cases
      Run apps with secrets
      Scan for hardcoded secrets
      Redact logs
    Audience
      Developers
      DevOps engineers
      Founders

Code map

Detail Auto

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filefunction / class

What do people build with it?

USE CASE 1

Run a process with secrets injected directly, avoiding .env files and shell history exposure

USE CASE 2

Preview available secrets safely using teller show with values masked

USE CASE 3

Scan a codebase for accidentally hardcoded secrets using teller scan

USE CASE 4

Redact sensitive values from logs by piping output through teller redact

What is it built with?

CLIHashiCorp VaultAWS Secrets ManagerGoogle Secret Manager

How does it compare?

polarathene/teller0verflowme/alarm-clock0verflowme/seclists
Language—CSS—
Last pushed2024-01-212022-10-032020-05-03
MaintenanceDormantDormantDormant
Setup difficultymoderateeasyeasy
Complexity3/52/51/5
Audienceops devopsvibe coderops devops

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 30min

Requires access to a supported secrets backend (Vault, AWS, GCP) and a .teller.yml config file.

Copy-paste prompts

Prompt 1
Help me create a .teller.yml config file to pull secrets from HashiCorp Vault
Prompt 2
Show me how to run my Node.js server with secrets injected using teller run
Prompt 3
Help me use teller scan to check my codebase for hardcoded API keys
Prompt 4
Walk me through setting up Teller in a GitHub Actions workflow for CI/CD secrets

Frequently asked questions

What is teller?

A command-line secrets manager that pulls passwords and API keys from vaults like HashiCorp Vault or AWS Secrets Manager straight into your process, never your shell history.

Is teller actively maintained?

Dormant — no commits in 2+ years (last push 2024-01-21).

How hard is teller to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is teller for?

Mainly ops devops.

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