Feature

Basic Authentication

HTTP Basic username and password credentials.

12 providers 119 APIs 12 declared variants

The API accepts HTTP Basic authentication with a username and password or key pair. Trivial to implement and common in legacy, banking, and internal-facing APIs.

12 API providers on the APIs.io network offer basic authentication. The highest-rated are Ashby, Assembled, Moniepoint, Convoy, Allegion.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 1 Complete, well-documented, and agent-ready
Ashby Ashby is a modern all-in-one recruiting platform combining Applicant Tracking System (ATS), sourcing/CRM, i... 15 APIs 70.1
Strong 6 Solid coverage with minor gaps
Assembled Assembled is a San Francisco-headquartered support operations platform that unifies workforce management (W... 12 APIs 69.1 Moniepoint Moniepoint is Africa's all-in-one financial platform for small and medium-sized businesses and individuals ... 14 APIs 67.8 Convoy Convoy is an open-source, cloud-native webhooks gateway used to securely ingest, persist, debug, deliver, a... 1 API 65.5 Allegion Allegion plc is a global security products company with $3.8B in 2024 revenue, 13,000+ employees, and 30+ b... 2 APIs 64.2 Onfleet Onfleet is an AI-powered last-mile delivery management platform that orchestrates fleet operations, dispatc... 8 APIs 64.0 Outbrain Outbrain Inc. (NASDAQ: OB), which closed its acquisition of Teads in early 2025 and now operates public... 3 APIs 61.9
Developing 4 Usable, with meaningful gaps to close
token-io Token.io is an Open Banking infrastructure provider offering A2A (Account-to-Account) payments and account ... 12 APIs 55.2 Octopus Energy Octopus Energy is a UK-founded retail energy supplier and the parent of Kraken Technologies, the AI-powered... 3 APIs 54.1 Lever Lever is a talent acquisition and applicant tracking platform built on the Opportunities data model. The Le... 23 APIs 51.5 Ashby Ashby is an all-in-one talent strategy platform combining ATS, sourcing, scheduling, and analytics. The Ash... 21 APIs 49.0
Emerging 1 Early or largely undocumented
Scenario Scenario is a Paris- and San Francisco-headquartered AI platform for game asset generation founded in 2021 ... 5 APIs 23.1

What Providers Actually Declared

This feature is a canonical term. These are the free-text strings providers wrote in their own apis.yml that map onto it.

Basic Auth (API key) and OAuth 2.0 for partner appsBasic Auth for sandbox testingENGAGE Cloud Credentialing API for BLE Mobile Credential upload, delete, list using alle-subscription-key header + Basic AuthGeneric HTTP (HMAC, Basic Auth, API Key, or Custom verification)HTTP Basic Auth with API key as username — keys are scoped to read/write modules (Jobs, Candidates, Interviews, Offers, Approvals, Organization, Reports, API Keys)HTTP Basic auth with API key (no password)HTTP Basic authentication with a per-customer API key for account, meter-point, and consumption endpoints; products and tariffs endpoints are open and unauthenticatedOAuth-style flow — Basic auth to /api/v1/auth/login returns short-lived Bearer accessTokenOB-TOKEN-V1 bearer authentication acquired via /login HTTP BasicREST API at https://api.assembledhq.com/v0/ with HTTP Basic Auth (sk_live_ API keys)REST API v2.7 over HTTPS with Basic Auth using the API key as the username and an empty passwordREST API with Basic Auth (Base64-encoded API key:secret) for programmatic generation, training, and asset management

Scroll for all 12