Feature

Basic Authentication

HTTP Basic username and password credentials.

13 providers 108 APIs 13 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.

13 API providers on the APIs.io network offer basic authentication. The highest-rated are Outbrain, Convoy, Ashby, Argyle, Onfleet.

Providers

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

Exemplar 1 Complete, well-documented, and agent-ready
OutbrainOutbrain Inc. (NASDAQ: OB), which closed its acquisition of Teads in early 2025 and now operates public...6 APIs72.1
Strong 9 Solid coverage with minor gaps
ConvoyConvoy is an open-source, cloud-native webhooks gateway used to securely ingest, persist, debug, deliver, a...1 API65.8AshbyAshby is a modern all-in-one recruiting platform combining Applicant Tracking System (ATS), sourcing/CRM, i...1 API64.1ArgyleArgyle is a consumer-permissioned employment and income data platform. The REST API and Link SDK let lender...22 APIs64.0OnfleetOnfleet is an AI-powered last-mile delivery management platform that orchestrates fleet operations, dispatc...9 APIs62.6AllegionAllegion plc is a global security products company with $3.8B in 2024 revenue, 13,000+ employees, and 30+ b...2 APIs60.5MoniepointMoniepoint is Africa's all-in-one financial platform for small and medium-sized businesses and individuals ...13 APIs57.6AssembledAssembled is a San Francisco-headquartered support operations platform that unifies workforce management (W...4 APIs55.6Octopus EnergyOctopus Energy is a UK-founded retail energy supplier and the parent of Kraken Technologies, the AI-powered...1 API55.2Token.ioToken.io is an Open Banking infrastructure provider offering A2A (Account-to-Account) payments and account ...1 API54.8
Developing 1 Usable, with meaningful gaps to close
AshbyAshby is an all-in-one talent strategy platform combining ATS, sourcing, scheduling, and analytics. The Ash...2 APIs41.0
Thin 1 Limited public surface area
LeverLever is a talent acquisition and applicant tracking platform built on the Opportunities data model. The Le...41 APIs38.2
Emerging 1 Early or largely undocumented
ScenarioScenario is a Paris- and San Francisco-headquartered AI platform for game asset generation founded in 2021 ...5 APIs25.9

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 unauthenticatedHTTP basic authentication with api_key_id / api_key_secret pairsOAuth-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

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curl "https://apis.io/api/v1/tags/basic-auth"

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