Parallel Tasks API
The Task API executes web research and extraction tasks. Clients submit a natural-language objective with an optional input schema; the service plans retrieval, fetches relevant URLs, and returns outputs that conform to a provided or inferred JSON schema. Supports deep research style queries and can return rich structured JSON outputs. Processors trade-off between cost, latency, and quality. Each processor supports calibrated confidences.- Output metadata: citations, excerpts, reasoning, and confidence per fieldTask Groups enable batch execution of many independent Task runs with group-level monitoring and failure handling.- Submit hundreds or thousands of Tasks as a single group- Observe group progress and receive results as they complete- Real-time updates via Server-Sent Events (SSE)- Add tasks to an existing group while it is running- Group-level retry and error aggregation
Parallel Tasks API is one of 8 APIs that Parallel publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Task. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a getting-started guide, and authentication docs.
This API exposes 12 operations across 11 paths, and defines 33 schemas. It is described by OpenAPI 3.1.0, at version 0.1.2.
Requests are made against a single base URL, https://api.parallel.ai.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Parallel Tasks API declares
1 security scheme
for authenticating requests.
An API key is passed in the header as x-api-key (ApiKeyAuth).
By default, every request must be authenticated.
Paths & Operations 12
Across 11 paths, the API surfaces 12 operations — 9 GET, 3 POST. Each is listed below with its method, path, parameters, and response codes.
The Task API executes web research and extraction tasks. Clients submit a natural-language objective with an optional input schema; the service plans retrieval, fetches relevant U…
Schemas 33
The contract defines 33 schemas that model the data the API accepts and returns. The most detailed are TaskRun (11 properties), TaskRunInput (10 properties), TaskRunJsonOutput (6 properties), McpToolCall (6 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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Other APIs Parallel publishes across the network.
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