The five envelopes · APIs
APIs — the web's machine door
An API is how software answers over the wire: a set of HTTP endpoints a program — or an agent — can call to get things done, described by a written contract (an OpenAPI spec) that says exactly which doors exist and what each one expects.
For agents, the spec is everything. A human can read docs and improvise; an agent needs the contract stated precisely. That's why this envelope is built from published specs, not from marketing pages — if a vendor declares their machine door, we fetch the declaration, validate it, and index what it actually says.
What “verified” means here
An API record is static-verified when its declared spec was fetched and machine-validated — the contract parses, the operations are real declarations. We deliberately do NOT ping API roots and call that verification: a 200 from a homepage proves nothing about the contract. Officialness means the spec is served from the provider's own domain.
Honest tiers, always: “not yet verified” is never “failed”. Full methodology →
Top verified APIs
Ordered by verification score, then adoption — deterministic and explainable. “Top” means most-verified, never most-marketed: rankings are never for sale.
Generate documents, presentations, and spreadsheets based on data. DocuMotor is a modern document generation platform that allows you to use transformation steps and templates designed in Microsoft 365, to create documents based on any data
Create and share online forms to improve processes and collect accurate data with ease. Build custom workflows and connect form responses with your own systems.
## API Groups This API spec only includes the following API groups: - **Sources**: API endpoints for discovering available data source connectors and their configuration requirements - **Collections**: API endpoints for managing collectio
Identification cards, as issued by Mizoram Police to its personnels, can be downloaded by them in their DigiLocker accounts
The LocalAI Rest API.
Feathery is the most powerful form and workflow automation platform. Build pixel-perfect forms, set up powerful logic, and connect to hundreds of different systems.
OpenAPI 2.0 documentation for [Mailpit](https://github.com/axllent/mailpit).
<p>Amazon Polly is a web service that makes it easy to synthesize speech from text.</p> <p>The Amazon Polly service provides API operations for synthesizing high-quality speech from plain text and Speech Synthesis Markup Language (SSML), al
OS management tools that can be used for patch management, patch compliance, and configuration management on VM instances.
Octobox helps you manage your GitHub notifications efficiently so you can spend more time getting things done. It provides several features to manage GitHub notifications, including archived states, starred notifications, extended filtering
Allows to use microfeed as a headless cms or integrate with external services like Zapier. Using the microfeed api, you can programmatically create, update, delete items, and update the channel metadata.
将 Markdown 文本转换为 DOCX 文档的 API
Looking for something specific? Ask from the homepage or hit /api/answer?q=… — one verified answer, or an honest no.