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30 results (showing the top 30) · filtered in 388ms

0x
Cryptocurrency
(visit)

API for querying token and pool stats across various liquidity pools

No auth
HTTPS
CORS
Open
18F
Open Data
(visit)

Unofficial US Federal Government API Development

No auth
Open
1pt
URL Shorteners
(visit)

The API provides a single operation to create a shortened URL by POSTing a long URL and optionally a desired custom alias; if the custom alias is omitted or already taken, a random five‑letter short code is generated.

No auth
HTTPS
CORS
Playground
Operational

The 24 Pull Requests API provides read‑only JSON endpoints that expose the initiative’s project listings, pull‑request contributions, and participant (user and organisation) data for the December open‑source campaign, with pagination and optional JSON‑P support.

No auth
HTTPS
CORS
Playground
Degraded

Normalized historical records and 25 daily-updated reference series

No auth
HTTPS
CORS
Degraded
Open

Simple image-based bulletin board dedicated to a variety of topics

No auth
HTTPS
CORS
Open

The 7Timer! API delivers location‑specific weather and astronomical forecasts. Clients can retrieve a PNG forecast diagram (via /bin/astro.php) or obtain the raw forecast data in XML or JSON for various products (astro, civil, civillight, meteo, two) via /bin/api.pl.

No auth
Playground
Degraded

The Abusive Experience Report API lets you retrieve a catalog of sites that have been identified as having abusive experiences via the /v1/violatingSites endpoint, and fetch a detailed summary for any specific site using /v1/{name} where the name follows the sites/{site} format.

No auth
HTTPS
Playground
Operational

Retrieves the list of AMP URLs (and equivalent AMP Cache URLs) for a given list of public URL(s).

No auth
HTTPS
Playground
Accounts API
Entertainment
(visit)

The Accounts API is a collection of methods used to query a customer account. It allows the developer to retrieve account-related data such as the user account balance. It should be noted that regional variations may exist - so some fields may not be returned for certain territories.

No auth
HTTPS
Playground

Allows retrieval of the current ACME DNS-01 challenge set for a specified root domain (including its subdomains) and the rotation of those challenges, optionally pruning records older than 30 days.

No auth
HTTPS
Playground
Operational

Our active docs provide the ability to test out your account and to see the responses to your queries. The services are RESTful, and are accessed using standard HTTP methods over a secure HTTPS channel. Requests and responses are currently sent in JSON format, and have a base URL of /v1.

No auth
HTTPS
Playground

The Ad Experience Report API provides endpoints to list all sites that are flagged for ad‑experience violations on any platform, and to retrieve the detailed Ad Experience Report summary for a specific site identified by its URL‑encoded name.

No auth
HTTPS
Playground
Operational

Random US, Hong Kong and Cape Verde addresses with matched city, state and ZIP

No auth
HTTPS
CORS
Open

Get all administrative divisions of a country

No auth
HTTPS
CORS
Operational
Open

Address database of France, geocoding and reverse

No auth
HTTPS
Open
ADS-B Exchange
Transportation
(visit)

Access real-time and historical data of any and all airborne aircraft

No auth
HTTPS
Open

Generate random advice slips

No auth
HTTPS
Playground

An API for accessing the NaviPlan Fact Finder.

No auth
HTTPS
Playground

A web service containing utility functions available for merchants integrating with Checkout APIs. ## Authentication Each request to the Checkout Utility API must be signed with an API key. For this, obtain an API Key from your Customer Area, as described in [How to get the Checkout API key](https://docs.adyen.com/developers/user-management/how-to-get-the-checkout-api-key). Then set this key to th

No auth
HTTPS
Playground

The Afterbanks API lets you list the banks it supports and, using a client‑provided service key, retrieve a user’s aggregated account balances and transaction history from a specific bank up to a given date.

No auth
HTTPS
Playground
Degraded

The AGCO API is a REST‑based service for AGCO Power Web Services that lets authorized users authenticate, manage device information (ECUs, engines, certificates), handle authorization categories and codes, and administer update system content such as bundles, clients, and content definitions.

No auth
HTTPS
Playground
Operational

Check a domain's SPF, DKIM, DMARC and MX with a graded shareable report

No auth
HTTPS
CORS
Open

AI/ML engineering job aggregator with REST, RSS, and MCP endpoints

No auth
HTTPS
CORS
Open

Token cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by Michał Piszczek

No auth
HTTPS
CORS
Degraded
Open

Before using this API, we recommend you read our **[Authorization Guide](https://developers.amadeus.com/self-service/apis-docs/guides/authorization-262)** for more information on how to generate an access token.

No auth
HTTPS
Playground

Before using this API, we recommend you read our **[Authorization Guide](https://developers.amadeus.com/self-service/apis-docs/guides/authorization-262)** for more information on how to generate an access token.

No auth
HTTPS
Playground

Before using this API, we recommend you read our **[Authorization Guide](https://developers.amadeus.com/self-service/apis-docs/guides/authorization-262)** for more information on how to generate an access token.

No auth
HTTPS
Playground

Before using this API, we recommend you read our **[Authorization Guide](https://developers.amadeus.com/self-service/apis-docs/guides/authorization-262)** for more information on how to generate an access token.

No auth
HTTPS
Playground

IP Geolocation API. Collecting data from multiple sources

No auth
HTTPS
Degraded
Open