REST API for B2B company and people intelligence — 26 operations across search (v2 and v3 filter and lookalike search for companies and people), enrichment (single and batch, by domain or LinkedIn handle), lookup, contact reveal (verified email and phone, delivered by webhook), autocomplete of filter values, segmentation, and account operations (credit balance, data fields, warmup). Authenticated with an account API token in the X-Api-Token header, metered from a shared credit pool, cursor-paginated with searchAfter.
This API exposes
26 operations
across 26 paths,
organized into 7 resource areas,
and defines 156 schemas.
It is described by OpenAPI 3.1.0, at version 2.0.0.
Requests are made against a single base URL, https://api.ocean.io.
26 operations26 paths156 schemas3 GET23 POST
Metadata
The identity and technical contract details declared by the specification.
Specification
OpenAPI 3.1.0
API Version
2.0.0
Base URL
https://api.ocean.io
Resource Areas
7
Paths & Operations 26
Across 26 paths, the API surfaces 26 operations — 3 GET, 23 POST. They span 7 resource areas: Autocomplete, Search, Enrich, Other, Lookup, Reveal, Segmentation. Each is listed below with its method, path, parameters, and response codes.
The contract defines 156 schemas that model the data the API accepts and returns. The most detailed are CompaniesFiltersV1 (36 properties), EnrichCompanyResult (35 properties), CompaniesFiltersV3 (35 properties), PublicCompany (34 properties). Each schema is shown below with its type and property counts.
AddMarkedDomainsInput
object
2 properties2 required
AllAnyNoneFilter
object
3 properties
AllAnyNoneFilterSocialMedia
object
3 properties
AllJobDescriptionsFilter
object
3 properties
AttributeSegmentationDomainsRequest
object
1 property1 required
AttributeSegmentationDomainsResponse
object
3 properties3 required
AttributedDomain
object
3 properties2 required
AutoCompletionCompany
object
3 properties1 required
CompaniesCityFilter
object
4 properties1 required
CompaniesFiltersV1
object
36 properties
CompaniesFiltersV3
object
35 properties
Company
object
17 properties
CompanyField
string
ContactNumber
object
3 properties1 required
Credits
object
2 properties
CrmDealStatusFilter
string
CrmFilterV3
object
Filter to companies whose CRM record matches. Resolved server-side by the search engine, which calls integrations.SearchByCrmFilters with these options to deri…
Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.
Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.
MCP tools for apis
4 tools reach this content
search_api_evangelistSearch every content type across the network at once.
find_relatedThe shared-tag relevance graph — what else covers this.
get_tagEverything one tag labels, across all content types.
guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
A second provider on the same verified email joins the account you already have.
Your account
ⓘWhere this information came from
This is an independent, third-party profile of Ocean.io 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.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's
public API artifacts, scored against a published rubric. They are not certifications,
endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and
you do not need to justify the request. A removed company is recorded as unrated, never scored
zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
·
Read the full data-sourcing policy → On a security or compliance team? Put security in the subject line and
you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.