Skip to content

Freeapi

Verified

Connect directly to any API using its OpenAPI spec with local API key storage, ensuring private, middleware-free requests from your machine.

145 downloads
$ Add to .claude/skills/

About This Skill

# freeAPI: The Sovereign Client

freeAPI is a direct execution engine for OpenClaw. It bypasses middleware, gateways, and data harvesters. With freeAPI, your agent connects directly from `localhost` to any API using its official OpenAPI/Swagger specification.

Philosophy

  • Sovereign: You own the connection. No third-party server mediates your requests.
  • Private: API keys stay in your local `.env` file. They are never sent to a gateway.
  • Spec-Driven: Just provide an OpenAPI spec URL or file. freeAPI figures out the rest.

Agent Usage (Natural Language)

Agents should integrate freeAPI seamlessly into the conversation.

1. Onboarding (The "Integral" Method)

Do not ask users to run raw CLI commands unless they prefer it. Instead, guide them conversationally:

  1. Ask: "Which service do you want to connect? (e.g., GitHub, Stripe, OpenAI)"
  2. Prompt: "Please provide your API key for [Service]. I will save it securely to your local `.env` file."
  3. Action: Use the `write` or `edit` tool to append the key to `.env`.
  4. * *Format:* `SERVICE_NAME_KEY=value` (e.g., `GITHUB_TOKEN=ghp_...`)
  5. Confirm: "Key saved. You can now use freeAPI with [Service]."

2. Execution

When a user asks to perform an action (e.g., "Check my GitHub issues"):

  1. Locate Spec: Find the OpenAPI spec URL (e.g., `https://api.github.com/openapi/v3`).
  2. Check Keys: Verify the key exists in `.env`. If not, trigger the Onboarding flow above.
  3. Run: Use `node skills/freeAPI/index.js run` with the spec and parameters.

Example Agent Thought Process: > User wants to list Stripe payments. I need the Stripe OpenAPI spec. I'll check `.env` for `STRIPE_SECRET_KEY`. It's missing. I will ask the user for it now, then save it, then run the `listPayments` operation.

User Guide (CLI Fallback)

For power users who prefer the terminal, the CLI is available.

Setup: `node skills/freeAPI/index.js setup` (Interactive checklist) Run: `node skills/freeAPI/index.js run ...`

Why Not Middleware?

Middleware services introduce latency, dependency, and privacy risks. freeAPI eliminates these by running entirely on your machine.

Use Cases

  • Discover and use free public APIs for development and prototyping
  • Find no-auth-required APIs for testing and learning purposes
  • Access weather, news, crypto, and other data through free API endpoints
  • Build demo applications using free data sources
  • Test API integration patterns without incurring API costs

Pros & Cons

Pros

  • +Curated collection of free APIs eliminates searching for data sources
  • +No-auth APIs reduce setup friction for quick prototyping
  • +Diverse category coverage: weather, finance, news, and more

Cons

  • -Free APIs may have rate limits, downtime, or incomplete data
  • -Only available on claude-code and openclaw platforms
  • -API availability is not guaranteed — free services can shut down without notice

FAQ

What does Freeapi do?
Connect directly to any API using its OpenAPI spec with local API key storage, ensuring private, middleware-free requests from your machine.
What platforms support Freeapi?
Freeapi is available on Claude Code, OpenClaw.
What are the use cases for Freeapi?
Discover and use free public APIs for development and prototyping. Find no-auth-required APIs for testing and learning purposes. Access weather, news, crypto, and other data through free API endpoints.

100+ free AI tools

Writing, PDF, image, and developer tools — all in your browser.

Next Step

Use the skill detail page to evaluate fit and install steps. For a direct browser workflow, move into a focused tool route instead of staying in broader support surfaces.