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SLNG Speechmatics API

Create and manage asynchronous transcription jobs.

SLNG Speechmatics API is one of 15 APIs that SLNG publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Speechmatics. The published artifact set on APIs.io includes an OpenAPI specification and an AsyncAPI specification.

This API exposes 5 operations across 3 paths, and defines 8 schemas. It is described by OpenAPI 3.0.3, at version 1.0.0.

Requests are made against a single base URL, https://api.agents.slng.ai.

5 operations 3 paths 8 schemas 1 DELETE3 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
1.0.0
Base URL
https://api.slng.ai
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

SLNG Speechmatics API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (API key) (bearerAuth). By default, every request must be authenticated.

Paths & Operations 5

Across 3 paths, the API surfaces 5 operations — 1 DELETE, 3 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Speechmatics 5

Create and manage asynchronous transcription jobs.

POST
/v1/batch/jobs
Create batch job
batchJobsCreate body → 200202400403413500
GET
/v1/batch/jobs
List batch jobs
batchJobsList 8 params → 200400403500
GET
/v1/batch/jobs/{jobId}
Get batch job
batchJobsGet 1 param → 200400403404500
DELETE
/v1/batch/jobs/{jobId}
Delete batch job
batchJobsDelete 1 param → 202400403404409500
GET
/v1/batch/jobs/{jobId}/files
Get batch job files
batchJobsFiles 1 param → 200400403404500

Schemas 8

The contract defines 8 schemas that model the data the API accepts and returns. The most detailed are BatchJob (15 properties), TranscriptionConfig (7 properties), Tracking (4 properties), JobOutputFile (4 properties). Each schema is shown below with its type and property counts.

JobAcknowledgement
object
Minimal acknowledgement returned when a job is queued or marked for deletion. Poll GET /v1/batch/jobs/{jobId} for the full record.
2 properties 2 required
Tracking
object
Metadata for organizing and filtering jobs.
4 properties
OutputConfig
object
Output format settings.
1 property
JobFile
object
An input file associated with a job, with a signed download URL.
3 properties 3 required
TranscriptionConfig
object
Transcription settings.
7 properties
Error
object
Error envelope. A short, user-presentable string only — no internal codes, stack traces, or upstream raw text.
1 property 1 required
BatchJob
object
A batch transcription job.
15 properties 2 required
JobOutputFile
object
An output transcript file, with format and signed download URL. Missing formats are omitted from the list.
4 properties 4 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

slng-speechmatics-api-openapi.yml Raw ↑

Other APIs SLNG publishes across the network.

SLNG Account API
SLNG Agents API
SLNG Calls API
SLNG Catalog API
SLNG Deepgram Aura 2 API
SLNG Deepgram Nova 3 API
SLNG Inworld Max 1.5 API
SLNG Orpheus English API
SLNG Pronunciation dictionaries API
SLNG Rime Arcana v2 API
SLNG Rime Arcana v3 API
SLNG Rime Coda API
Where this information came from

This is an independent, third-party profile of SLNG Speechmatics API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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