OpenSERP

OpenSERP is an open-source, self-hostable SERP API that returns structured search results from Google, Bing, Yandex, Baidu, DuckDuckGo and Ecosia through one REST interface, alongside OpenSERP Cloud, a managed pay-as-you-go version of the same API adding page extraction, multi-engine megasearch, image search and scheduled rank monitoring. The self-hosted server ships an MIT-licensed Go binary and CLI with a published OpenAPI 3.0.3 contract, a v2 response envelope carrying query echo, metadata, normalized results and pagination, plus cache, proxy-pool and circuit-breaker telemetry endpoints. OpenSERP Cloud adds bearer-token authentication, credit-metered billing, engine health routing, batch URL extraction and Search Monitor webhooks, and the project publishes first-party JavaScript and Python SDKs, an MCP server and an n8n community node.

OpenSERP publishes 6 API contracts indexed on the APIs.io network, including Docs API, Health API, Mega API, and 3 more. Tagged areas include Company, Search, SERP, Search API, and Web Scraping.

The OpenSERP catalog on APIs.io includes 1 event-driven AsyncAPI specification.

OpenSERP’s developer surface includes documentation, API reference, getting-started guide, authentication, pricing, engineering blog, signup flow, and 40 more developer resources.

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49.3/100 developing ▬ flat Agent 36/100 agent ready Front door AI 5/6 prominent open core · MIT Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

1 published contract 1 MCP Servers

Company Search SERP Search API Web Scraping Content ExtractionAI GroundingRank Tracking Open Source Developer Tools

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 49.3/100 · developing

Contract Quality 7.7 / 16

Developer Ergonomics 10.1 / 13

Access Clarity 5.8 / 13

Operational Transparency 2.2 / 8

Contract Governance 0.4 / 8

Discoverability 5.3 / 7

Regulatory Posture 3.7 / 15

Open Source Surface 5.0 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 3 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 65 points between them, because both conditional facets apply and carry 35 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 65% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/openserp: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

OpenSERP Cloud API

The managed, hosted version of the OpenSERP search API. Bearer-token authenticated, credit-metered pay-as-you-go REST API exposing single-engine web and image search across Goog...

OpenSERP Docs API

OpenAPI and Swagger UI endpoints

OpenSERP Health API

Health and readiness endpoints

OpenSERP Mega API

Cross-engine aggregated search endpoints

OpenSERP Search API

Dedicated per-engine search endpoints

OpenSERP Stats API

Runtime statistics endpoints

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

OpenSERP API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

OpenSERP MCP Server

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Openserp Monitor Webhooks

ASYNCAPI

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Openserp Oss Overlay

10 actions · update · openserp-oss-openapi.yml

GENERATED

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Openserp Authentication

http · 2 schemes

SECURITY

Openserp Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Openserp Agentic Access

18 operations · 4 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

SignUp

SignUp

Sandbox

Sandbox

Documentation 3

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 8

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LLMsTxt

WellKnown

MCPServer

WellKnown

LLMsTxt

MCPServer

AgentSkill

Scroll for all 8

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

ErrorCatalog

Lifecycle

DataModel

Conformance

Webhooks

Scroll for all 7

Build 6

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

SourceCode

Packages

SDKs

CLI

ToolCrosswalk

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Authentication

Authentication

Operate 5

Status, limits, changes, and where to get help

IssueTracker

Releases

Support

Community

ChangeLog

Commercial 5

Pricing, plans, and the legal terms of use

License

Pricing

Plans

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

BlogRSS

BlogRSS

Other 2

Properties that don't map to a standard resource type

ContentSignal

ContentSignal

Overlay

Overlay

Source (apis.yml)

aid: openserp
name: OpenSERP
description: OpenSERP is an open-source, self-hostable SERP API that returns structured search results from Google, Bing,
  Yandex, Baidu, DuckDuckGo and Ecosia through one REST interface, alongside OpenSERP Cloud, a managed pay-as-you-go version
  of the same API adding page extraction, multi-engine megasearch, image search and scheduled rank monitoring. The self-hosted
  server ships an MIT-licensed Go binary and CLI with a published OpenAPI 3.0.3 contract, a v2 response envelope carrying
  query echo, metadata, normalized results and pagination, plus cache, proxy-pool and circuit-breaker telemetry endpoints.
  OpenSERP Cloud adds bearer-token authentication, credit-metered billing, engine health routing, batch URL extraction and
  Search Monitor webhooks, and the project publishes first-party JavaScript and Python SDKs, an MCP server and an n8n community
  node.
url: https://raw.githubusercontent.com/api-evangelist/openserp/refs/heads/main/apis.yml
deliveryModel:
  model: open-core
  license: MIT
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://openserp.org/icon.svg
x-type: company
x-source: harvest:direct
specificationVersion: '0.23'
created: '2026-08-10'
modified: '2026-08-10'
x-enrichment:
  date: '2026-08-10'
  status: enriched
  artifacts_added: 27
  pass: local-v1
tags:
- Company
- Search
- SERP
- Search API
- Web Scraping
- Content Extraction
- AI Grounding
- Rank Tracking
- Open Source
- Developer Tools
tags_raw:
- Company
- Search
- SERP
- Search API
- Web Scraping
- Content Extraction
- AI Grounding
- Rank Tracking
- Open Source
- Developer Tools
- Open-Source
apis:
- aid: openserp:openserp-cloud
  name: OpenSERP Cloud API
  description: The managed, hosted version of the OpenSERP search API. Bearer-token authenticated, credit-metered pay-as-you-go
    REST API exposing single-engine web and image search across Google, Bing, Yandex, Baidu, DuckDuckGo and Ecosia, multi-engine
    megasearch with balanced/any/fast execution modes, single and batch URL extraction, account balance and live per-operation
    pricing.
  humanURL: https://openserp.org/docs/cloud/
  baseURL: https://api.openserp.org
  tags:
  - Search
  - SERP
  - Content Extraction
  - Image Search
  properties:
  - type: Documentation
    url: https://openserp.org/docs/cloud/
  - type: APIReference
    url: https://openserp.org/docs/cloud-endpoints/
  - type: GettingStarted
    url: https://openserp.org/docs/cloud-quickstart/
  - type: Authentication
    url: https://openserp.org/docs/cloud-authentication/
  - type: ErrorCatalog
    url: https://openserp.org/docs/cloud-errors/
  - type: Examples
    url: https://openserp.org/docs/cloud-examples/
  - type: Plans
    url: https://openserp.org/docs/cloud-pricing/
  - type: Webhooks
    url: https://openserp.org/docs/cloud-monitor-webhooks/
- aid: openserp:openserp-docs-api
  name: OpenSERP Docs API
  description: OpenAPI and Swagger UI endpoints
  humanURL: https://openserp.org/docs/cloud/
  baseURL: https://api.openserp.org
  tags:
  - Docs
  properties:
  - type: OpenAPI
    url: openapi/openserp-docs-api-openapi.yml
  - type: Documentation
    url: https://openserp.org/docs/
  - type: SourceCode
    url: https://github.com/karust/openserp
  - type: Architecture
    url: https://openserp.org/docs/architecture/
- aid: openserp:openserp-health-api
  name: OpenSERP Health API
  description: Health and readiness endpoints
  humanURL: https://openserp.org/docs/cloud/
  baseURL: https://api.openserp.org
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/openserp-health-api-openapi.yml
  - type: Documentation
    url: https://openserp.org/docs/
  - type: SourceCode
    url: https://github.com/karust/openserp
  - type: Architecture
    url: https://openserp.org/docs/architecture/
- aid: openserp:openserp-mega-api
  name: OpenSERP Mega API
  description: Cross-engine aggregated search endpoints
  humanURL: https://openserp.org/docs/cloud/
  baseURL: https://api.openserp.org
  tags:
  - Mega
  properties:
  - type: OpenAPI
    url: openapi/openserp-mega-api-openapi.yml
  - type: Documentation
    url: https://openserp.org/docs/
  - type: SourceCode
    url: https://github.com/karust/openserp
  - type: Architecture
    url: https://openserp.org/docs/architecture/
- aid: openserp:openserp-search-api
  name: OpenSERP Search API
  description: Dedicated per-engine search endpoints
  humanURL: https://openserp.org/docs/cloud/
  baseURL: https://api.openserp.org
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/openserp-search-api-openapi.yml
  - type: Documentation
    url: https://openserp.org/docs/
  - type: SourceCode
    url: https://github.com/karust/openserp
  - type: Architecture
    url: https://openserp.org/docs/architecture/
- aid: openserp:openserp-stats-api
  name: OpenSERP Stats API
  description: Runtime statistics endpoints
  humanURL: https://openserp.org/docs/cloud/
  baseURL: https://api.openserp.org
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/openserp-stats-api-openapi.yml
  - type: Documentation
    url: https://openserp.org/docs/
  - type: SourceCode
    url: https://github.com/karust/openserp
  - type: Architecture
    url: https://openserp.org/docs/architecture/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: IssueTracker
  url: https://github.com/karust/openserp/issues
- type: Releases
  url: https://github.com/karust/openserp/releases
- type: ContributionGuide
  url: https://github.com/karust/openserp/blob/main/docs/CONTRIBUTING.md
- type: License
  name: MIT
  url: https://github.com/karust/openserp/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/openserp-agentic-access.yml
- type: DomainSecurity
  url: security/openserp-domain-security.yml
- type: Website
  url: https://openserp.org
- type: DeveloperPortal
  url: https://openserp.org/docs/
- type: Documentation
  url: https://openserp.org/docs/
- type: APIReference
  url: https://openserp.org/docs/cloud-endpoints/
- type: GettingStarted
  url: https://openserp.org/docs/cloud-quickstart/
- type: Authentication
  url: https://openserp.org/docs/cloud-authentication/
- type: ErrorCatalog
  url: https://openserp.org/docs/cloud-errors/
- type: Pricing
  url: https://openserp.org/pricing/
- type: Plans
  url: https://openserp.org/docs/cloud-pricing/
- type: Blog
  url: https://openserp.org/blog/
- type: BlogRSS
  url: https://openserp.org/blog/rss.xml
- type: GitHubOrganization
  url: https://github.com/openserpapi
- type: SourceCode
  url: https://github.com/karust/openserp
- type: LLMsTxt
  url: https://openserp.org/llms.txt
- type: WellKnown
  url: https://openserp.org/.well-known/api-catalog
- type: MCPServer
  url: https://openserp.org/.well-known/mcp.json
- type: Login
  url: https://openserp.org/login/
- type: SignUp
  url: https://openserp.org/register/
- type: TermsOfService
  url: https://openserp.org/terms/
- type: PrivacyPolicy
  url: https://openserp.org/privacy/
- type: Support
  url: mailto:support@openserp.org
- type: Community
  url: https://t.me/openserp_cloud
- type: Authentication
  url: authentication/openserp-authentication.yml
- type: Conventions
  url: conventions/openserp-conventions.yml
- type: ErrorCatalog
  url: errors/openserp-problem-types.yml
- type: Lifecycle
  url: lifecycle/openserp-lifecycle.yml
- type: ChangeLog
  url: changelog/openserp-changelog.yml
- type: Packages
  url: packages/openserp-packages.yml
- type: SDKs
  url: packages/openserp-packages.yml
- type: CLI
  url: cli/openserp-cli.yml
- type: Sandbox
  url: sandbox/openserp-sandbox.yml
- type: DataModel
  url: data-model/openserp-data-model.yml
- type: Conformance
  url: conformance/openserp-conformance.yml
- type: WellKnown
  url: well-known/openserp-well-known.yml
- type: ContentSignal
  url: well-known/openserp-robots.txt
- type: LLMsTxt
  url: llms/openserp-llms.txt
- type: MCPServer
  url: mcp/openserp-mcp.yml
- type: ToolCrosswalk
  url: mcp/openserp-tool-crosswalk.yml
- type: Webhooks
  url: asyncapi/openserp-monitor-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Overlay
  url: overlays/openserp-oss-overlay.yaml

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