Chainstack Faucet API
Public Chainstack-operated testnet faucet for Hoodi, Sepolia, BNB Testnet, zkSync Testnet, Scroll Sepolia, and Polygon Amoy. JWT-authenticated POST /v1/faucet/{chain} request endpoint plus a transaction-history endpoint. Also available as a Telegram Mini App and via the Chainstack MCP server.
Chainstack Faucet API is one of 31 APIs that Chainstack publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Faucet, Testnet, and Developer Tools. The published artifact set on APIs.io includes an OpenAPI specification.
This API exposes 1 operation across 1 path, and defines 2 schemas. It is described by OpenAPI 3.2.0, at version v2.
Requests are made against a single base URL, https://api.chainstack.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Chainstack Faucet API declares
1 security scheme
for authenticating requests.
It accepts HTTP bearer tokens (APIKeyAuthentication).
APIKeyAuthentication— Chainstack API uses [API keys](https://docs.chainstack.com/reference/platform-api-getting-started) to authenticate requests. You can view and manage your API k…
Paths & Operations 1
Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.
Schemas 2
The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are FaucetSepoliaResponse (2 properties), FaucetSepoliaRequest (1 property). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Chainstack 12
Other APIs Chainstack publishes across the network.
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