Parallel Web Systems builds infrastructure for intelligence on the web, giving AI agents and developers high-quality, low-latency access to the internet. Its API suite spans a Search API (high-accuracy, cross-referenced web search with turbo/basic/advanced modes), an Extract API for token-efficient page content, a Task / Deep Research API for multi-hop research, an OpenAI-compatible Responses API for cited answers in seconds, FindAll and Entity Search for entity discovery, a Monitor API for continuous web change tracking, a beta Memory API for reusable research context, and a Chat Completions (beta) surface. Parallel is unusually complete on the agent surface: a free hosted Search MCP server whose tools/list answers anonymously, an A2A Deep Research agent advertised by a conformant agent card at api.parallel.ai, published Agent Skills served from /.well-known/, an llms.txt, and an OAuth key-issuance provider with RFC 8414 metadata. It ships first-party Python and TypeScript SDKs plus a parallel-cli, prices everything pay-as-you-go with a free monthly allowance, is SOC 2 Type II certified, and is backed by Index Ventures.
Parallel Web Systems publishes 8 APIs on the APIs.io network, including Chat API (Beta) API, Extract API, FindAll API, and 5 more. Tagged areas include Company, Ai Ml, Web Search, Deep Research, and Data Enrichment.
The Parallel Web Systems catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Parallel Web Systems’ developer surface includes documentation, API reference, getting-started guide, engineering blog, signup flow, changelog, CLI, and 28 more developer resources.
The Chat API provides a programmatic chat-style text generation interface. It accepts a sequence of messages and returns model responses. Intended for assistant-like interaction...
Extract returns excerpts or full content from one or more URLs. Inputs are a list of URLs and an optional search objective and keyword queries. The returned excerpts or full con...
The FindAll API discovers and evaluates entities that match complex criteria from natural language objectives. Submit a high-level goal and the service automatically generates s...
The Monitor API watches the web for material changes on a fixed frequency. Each monitor runs once on creation and then on its configured schedule, emitting events when meaningfu...
Search returns ranked URLs with extended excerpts suitable for LLM consumption. Inputs are a natural-language objective and optional keyword queries. Source policies allow inclu...
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...
The beta Memory API gives agents a persistent retrieval layer over previously gathered web context. It exposes three operations - retrieve memory for a query, evict a specific s...
An OpenAI-Responses-compatible interface for answers grounded in live web research, with URL citations. Point any Responses-API client — the OpenAI Python SDK, OpenAI TypeScript...
aid: parallel-web-systems
name: Parallel Web Systems
description: 'Parallel Web Systems builds infrastructure for intelligence on the web, giving AI agents and developers high-quality,
low-latency access to the internet. Its API suite spans a Search API (high-accuracy, cross-referenced web search with turbo/basic/advanced
modes), an Extract API for token-efficient page content, a Task / Deep Research API for multi-hop research, an OpenAI-compatible
Responses API for cited answers in seconds, FindAll and Entity Search for entity discovery, a Monitor API for continuous
web change tracking, a beta Memory API for reusable research context, and a Chat Completions (beta) surface. Parallel is
unusually complete on the agent surface: a free hosted Search MCP server whose tools/list answers anonymously, an A2A Deep
Research agent advertised by a conformant agent card at api.parallel.ai, published Agent Skills served from /.well-known/,
an llms.txt, and an OAuth key-issuance provider with RFC 8414 metadata. It ships first-party Python and TypeScript SDKs
plus a parallel-cli, prices everything pay-as-you-go with a free monthly allowance, is SOC 2 Type II certified, and is backed
by Index Ventures.'
url: https://raw.githubusercontent.com/api-evangelist/parallel-web-systems/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- index-ventures
deliveryModel:
model: saas
open_source: false
commercial: true
callable_host: true
label: Hosted service · you call their endpoint
confidence: high
source:
- openapi
- pricing
generated: '2026-08-28'
method: derived
accessModel:
pricing: pay-as-you-go
onboarding: self-serve
trial: true
try_now: true
public: true
label: Self-serve signup, pay-as-you-go, free tier
confidence: high
detail: Self-serve signup at platform.parallel.ai with up to 5,000 requests per month free plus monthly free credits; hosted
playgrounds at platform.parallel.ai/play/*; and a hosted Search MCP server callable with no account at all.
source:
- plans
- authentication
- mcp
generated: '2026-08-14'
method: searched
image: https://assets.parallel.ai/dark-parallel-avatar-540.png
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-14'
tags:
- Company
- Ai Ml
- Web Search
- Deep Research
- Data Enrichment
- Web Monitoring
- AI Agents
- MCP
- A2A
- Agent Skills
- Content Extraction
- Entity Resolution
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
apis:
- aid: parallel-web-systems:parallel-web-systems-chat-api-beta-api
name: Parallel Web Systems Chat API (Beta) API
description: The Chat API provides a programmatic chat-style text generation interface. It accepts a sequence of messages
and returns model responses. Intended for assistant-like interactions and evaluation. Streaming responses are supported.
humanURL: https://docs.parallel.ai/chat-api/chat-quickstart
baseURL: https://api.parallel.ai
tags:
- Chat API (Beta)
properties:
- type: OpenAPI
url: openapi/parallel-web-systems-chat-api-beta-api-openapi.yml
- type: Conventions
url: conventions/parallel-web-systems-conventions.yml
- type: ErrorCatalog
url: errors/parallel-web-systems-problem-types.yml
- type: DataModel
url: data-model/parallel-web-systems-data-model.yml
- type: Webhooks
url: asyncapi/parallel-web-systems-webhooks.yml
- type: RateLimits
url: rate-limits/parallel-web-systems-rate-limits.yml
- type: APIReference
url: https://docs.parallel.ai/api-reference/chat-api-beta/chat-completions
- type: GettingStarted
url: https://docs.parallel.ai/chat-api/chat-quickstart
- aid: parallel-web-systems:parallel-web-systems-extract-api
name: Parallel Web Systems Extract API
description: 'Extract returns excerpts or full content from one or more URLs. Inputs are a list of URLs and an optional
search objective and keyword queries. The returned excerpts or full content is formatted as markdown and suitable for
LLM consumption.
- Result: excerpts or full content from the URL formatted as markdown'
humanURL: https://docs.parallel.ai/extract/extract-quickstart
baseURL: https://api.parallel.ai
tags:
- Extract
properties:
- type: OpenAPI
url: openapi/parallel-web-systems-extract-api-openapi.yml
- type: Conventions
url: conventions/parallel-web-systems-conventions.yml
- type: ErrorCatalog
url: errors/parallel-web-systems-problem-types.yml
- type: DataModel
url: data-model/parallel-web-systems-data-model.yml
- type: Webhooks
url: asyncapi/parallel-web-systems-webhooks.yml
- type: RateLimits
url: rate-limits/parallel-web-systems-rate-limits.yml
- type: APIReference
url: https://docs.parallel.ai/api-reference/extract/extract
- type: GettingStarted
url: https://docs.parallel.ai/extract/extract-quickstart
- aid: parallel-web-systems:parallel-web-systems-findall-api
name: Parallel Web Systems FindAll API
description: The FindAll API discovers and evaluates entities that match complex criteria from natural language objectives.
Submit a high-level goal and the service automatically generates structured match conditions, discovers relevant candidates,
and evaluates each against the criteria. Returns comprehensive results with detailed reasoning, citations, and confidence
scores for each match decision. Streaming events and webhooks are supported.
humanURL: https://docs.parallel.ai/findall-api/findall-quickstart
baseURL: https://api.parallel.ai
tags:
- FindAll
properties:
- type: OpenAPI
url: openapi/parallel-web-systems-findall-api-openapi.yml
- type: Conventions
url: conventions/parallel-web-systems-conventions.yml
- type: ErrorCatalog
url: errors/parallel-web-systems-problem-types.yml
- type: DataModel
url: data-model/parallel-web-systems-data-model.yml
- type: Webhooks
url: asyncapi/parallel-web-systems-webhooks.yml
- type: RateLimits
url: rate-limits/parallel-web-systems-rate-limits.yml
- type: APIReference
url: https://docs.parallel.ai/api-reference/findall/create-findall-run
- type: GettingStarted
url: https://docs.parallel.ai/findall-api/findall-quickstart
- aid: parallel-web-systems:parallel-web-systems-monitor-api
name: Parallel Web Systems Monitor API
description: 'The Monitor API watches the web for material changes on a fixed frequency. Each monitor runs once on creation
and then on its configured schedule, emitting events when meaningful changes are detected.
- `event_stream` monitors track a search query and emit an event for each new material change.
- `snapshot` monitors track a specific task run''s output and emit an event when the output changes.
Results can be polled via the events endpoint or delivered via webhooks.'
humanURL: https://docs.parallel.ai/monitor-api/monitor-quickstart
baseURL: https://api.parallel.ai
tags:
- Monitors
tags_raw:
- Monitor
properties:
- type: OpenAPI
url: openapi/parallel-web-systems-monitor-api-openapi.yml
- type: Conventions
url: conventions/parallel-web-systems-conventions.yml
- type: ErrorCatalog
url: errors/parallel-web-systems-problem-types.yml
- type: DataModel
url: data-model/parallel-web-systems-data-model.yml
- type: Webhooks
url: asyncapi/parallel-web-systems-webhooks.yml
- type: RateLimits
url: rate-limits/parallel-web-systems-rate-limits.yml
- type: APIReference
url: https://docs.parallel.ai/api-reference/monitor/create-monitor
- type: GettingStarted
url: https://docs.parallel.ai/monitor-api/monitor-quickstart
- aid: parallel-web-systems:parallel-web-systems-search-api
name: Parallel Web Systems Search API
description: 'Search returns ranked URLs with extended excerpts suitable for LLM consumption. Inputs are a natural-language
objective and optional keyword queries. Source policies allow including or excluding specific domains and have configurable
output sizes. The returned extended snippets contain dense, relevant information from relevant pages.
- Result: ranked list with URL, title, and long text excerpts'
humanURL: https://docs.parallel.ai/search/search-quickstart
baseURL: https://api.parallel.ai
tags:
- Search
properties:
- type: OpenAPI
url: openapi/parallel-web-systems-search-api-openapi.yml
- type: Conventions
url: conventions/parallel-web-systems-conventions.yml
- type: ErrorCatalog
url: errors/parallel-web-systems-problem-types.yml
- type: DataModel
url: data-model/parallel-web-systems-data-model.yml
- type: Webhooks
url: asyncapi/parallel-web-systems-webhooks.yml
- type: RateLimits
url: rate-limits/parallel-web-systems-rate-limits.yml
- type: APIReference
url: https://docs.parallel.ai/api-reference/search/search
- type: GettingStarted
url: https://docs.parallel.ai/search/search-quickstart
- aid: parallel-web-systems:parallel-web-systems-tasks-api
name: Parallel Web Systems Tasks API
description: '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 field
Task 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'
humanURL: https://docs.parallel.ai/task-api/task-quickstart
baseURL: https://api.parallel.ai
tags:
- Task
tags_raw:
- Tasks
properties:
- type: OpenAPI
url: openapi/parallel-web-systems-tasks-api-openapi.yml
- type: Conventions
url: conventions/parallel-web-systems-conventions.yml
- type: ErrorCatalog
url: errors/parallel-web-systems-problem-types.yml
- type: DataModel
url: data-model/parallel-web-systems-data-model.yml
- type: Webhooks
url: asyncapi/parallel-web-systems-webhooks.yml
- type: RateLimits
url: rate-limits/parallel-web-systems-rate-limits.yml
- type: APIReference
url: https://docs.parallel.ai/api-reference/tasks/create-task-run
- type: GettingStarted
url: https://docs.parallel.ai/task-api/task-quickstart
- aid: parallel-web-systems:parallel-web-systems-memory-api-beta
name: Parallel Web Systems Memory API (Beta)
description: The beta Memory API gives agents a persistent retrieval layer over previously gathered web context. It exposes
three operations - retrieve memory for a query, evict a specific source from memory, and clear memory entirely - so an
agent can reuse research across turns without refetching the web. The surface lives under the /v1beta prefix and is opted
into via the `parallel-beta` request header.
humanURL: https://docs.parallel.ai
baseURL: https://api.parallel.ai
tags:
- Memory
properties:
- type: OpenAPI
url: openapi/parallel-web-systems-memory-api-openapi.yml
- type: Conventions
url: conventions/parallel-web-systems-conventions.yml
- type: ErrorCatalog
url: errors/parallel-web-systems-problem-types.yml
- type: DataModel
url: data-model/parallel-web-systems-data-model.yml
- type: Documentation
url: https://docs.parallel.ai
- aid: parallel-web-systems:parallel-web-systems-responses-api-api
name: Parallel Web Systems Responses API
description: 'An OpenAI-Responses-compatible interface for answers grounded in live web research, with URL citations. Point
any Responses-API client — the OpenAI Python SDK, OpenAI TypeScript SDK, the Agents SDK, or raw HTTP — at `https://api.parallel.ai`
with your Parallel API key, set `model` to `parallel`, and call `/v1/responses`.
- `input` accepts a plain string or an array of role/content messages (canonical OpenAI shape; text content only).
- `reasoning.effort` (`low`/`medium`/`high`) controls how much research is performed, trading response time for answer
quality.
- Multi-turn via `previous_response_id`.
- Structured outputs via `text.format = {"type": "json_schema", "name": ..., "schema": {...}}`.
- Streaming (`stream=true`) emits the standard OpenAI Responses SSE lifecycle: `response.created` and `response.in_progress`,
then output item / content part / text delta events with URL-citation annotations, the matching `*.done` events, and a
terminal `response.completed` — or `response.failed` if the request fails mid-stream.'
humanURL: https://docs.parallel.ai/chat-api/chat-quickstart
baseURL: https://api.parallel.ai
tags:
- Responses API
properties:
- type: OpenAPI
url: openapi/parallel-web-systems-responses-api-api-openapi.yml
- type: Conventions
url: conventions/parallel-web-systems-conventions.yml
- type: ErrorCatalog
url: errors/parallel-web-systems-problem-types.yml
- type: DataModel
url: data-model/parallel-web-systems-data-model.yml
- type: RateLimits
url: rate-limits/parallel-web-systems-rate-limits.yml
- type: APIReference
url: https://docs.parallel.ai/api-reference/responses-api/create-response
- type: GettingStarted
url: https://docs.parallel.ai/responses-api/responses-quickstart
common:
- type: MCPServer
url: mcp/parallel-web-systems-mcp.yml
- type: Overlay
url: overlays/parallel-web-systems-openapi-overlay.yaml
- type: Website
url: https://parallel.ai/
- type: DeveloperPortal
url: https://platform.parallel.ai
- type: Documentation
url: https://docs.parallel.ai
- type: APIReference
url: https://docs.parallel.ai/api-reference/search/search
- type: GettingStarted
url: https://docs.parallel.ai/getting-started/overview
- type: Blog
url: https://parallel.ai/blog
- type: GitHubOrganization
url: https://github.com/parallel-web
- type: SignUp
url: https://platform.parallel.ai
- type: TermsOfService
url: https://parallel.ai/customer-terms
- type: PrivacyPolicy
url: https://parallel.ai/privacy-policy
- type: StatusPage
url: https://status.parallel.ai
- type: Lifecycle
url: lifecycle/parallel-web-systems-lifecycle.yml
- type: Deprecation
url: lifecycle/parallel-web-systems-lifecycle.yml
- type: ChangeLog
url: changelog/parallel-web-systems-changelog.yml
- type: Packages
url: packages/parallel-web-systems-packages.yml
- type: SDKs
url: packages/parallel-web-systems-packages.yml
- type: CLI
url: cli/parallel-web-systems-cli.yml
- type: Authentication
url: authentication/parallel-web-systems-authentication.yml
- type: DomainSecurity
url: security/parallel-web-systems-domain-security.yml
- type: TrustCenter
url: security/parallel-web-systems-trust-center.yml
- type: Compliance
url: security/parallel-web-systems-trust-center.yml
- type: Conformance
url: conformance/parallel-web-systems-conformance.yml
- type: WellKnown
url: well-known/parallel-web-systems-well-known.yml
- type: LLMsTxt
url: llms/parallel-web-systems-llms.txt
- type: AgentSkill
url: skills/_index.yml
- type: AgentCard
url: a2a/parallel-web-systems-a2a.yml
- type: ToolCrosswalk
url: mcp/parallel-web-systems-tool-crosswalk.yml
- type: OAuthScopes
url: scopes/parallel-web-systems-scopes.yml
- type: Plans
url: plans/parallel-web-systems-plans-pricing.yml
- type: RateLimits
url: rate-limits/parallel-web-systems-rate-limits.yml
- type: PostmanCollection
url: collections/parallel-web-systems-search-api.postman_collection.json
- type: OpenCollection
url: collections/parallel-web-systems-search-api.opencollection.json
- type: Pricing
url: https://parallel.ai/pricing
x-enrichment:
date: '2026-08-14'
status: enriched
artifacts_added: 11
pass: local-v1
x-coverage:
state: covered
reason: n/a
detail: Fully covered. Live OpenAPI (34 paths), a callable hosted MCP server whose tools/list answers anonymously, two real
A2A agent cards, published Agent Skills served from /.well-known/, llms.txt, RFC 8414 OAuth metadata, published pricing
and rate limits.
checked: '2026-08-14'
x-parent: parallel
x-relationship: product
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