Streaming response simulator

Generate a controlled stream of response data.

Expires after 1 hour

Start with routes or import an OpenAPI document to build your mock.

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The example below already works.Create it now and edit it later, or change it first.

Proxy & record a real API Pro

Point the mock at your real API: unmatched calls pass through and real answers are saved as routes. Beeceptor charges $10 a month for its paid plans; this is part of Kivel Pro.

Get Pro for $2 a month

Import / export configuration

Mock configuration (JSON)

API name

MethodPathStatusDelay (ms)Requests per minuteRandom failures (%)DeliveryChunk interval (ms)Response type

Request conditions & response templates

Match request fieldResponse mode

Templates accept {{path.id}}, {{query.name}}, {{body.name}} and sample data such as {{fake.name}}, {{fake.email}}, {{fake.uuid}}, {{fake.price}} or {{fake.datetime}} inside JSON strings or plain text. Missing values become empty strings. No code runs. Test credentials are stored in the configuration; use fake tokens only.

Chunks / events (one per line)

Up to 20 routes, 80 KiB total configuration, and 120 requests per minute. Paths support parameters such as /users/:id. Matching routes are checked in order.

Open an existing mock API

Resource IDManagement token (optional for your workspace)

About Streaming response simulator

Create a text endpoint that sends each configured line at a chosen interval.

When to use it

Create a text endpoint that sends each configured line at a chosen interval.

Streaming response simulator example

first chunk → wait → second chunk

How to use it

Configure the endpoint and choose private or public access.
Create it and send requests from your client.
Inspect test output, update or delete the resource when finished.

Limits & privacy

Uses an expiring mock resource, private by default, with separate management and access credentials. Public access is optional. Standard resource quotas, ownership, renewal and deletion apply. Private access tokens are sent in headers, never in share URLs. GET or ANY, status 200. Up to 20 lines of 4 KiB each, intervals of 10–1000 ms, and five seconds of delivery. Sixteen streams per server; proxy or client buffering can combine network chunks.

Use this tool from the API reference or connect through the SDK, CLI, SSH, or MCP. Hosted calls share your plan allowances.