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Harmonic Ai

Harmonic REST & GraphQL API

REST API for company search, enrichment, saved searches, list management, and bulk operations, plus a full GraphQL endpoint for flexible queries across companies, people, investors, lists, and custom fields. Auth via apikey header or OAuth 2.0 bearer tokens.

Documentation Provider Profile APIs.io OpenAPI GitHub

This API exposes 39 operations across 26 paths, and defines 157 schemas. It is described by OpenAPI 3.2.0, at version 0.0.1.

Requests are made against the base URL https://api.harmonic.ai/.

39 operations 26 paths 157 schemas 5 DELETE15 GET1 PATCH14 POST4 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
0.0.1
Base URL
https://api.harmonic.ai/
Resource Areas
1

Paths & Operations 39

Across 26 paths, the API surfaces 39 operations — 5 DELETE, 15 GET, 1 PATCH, 14 POST, 4 PUT. Each is listed below with its method, path, parameters, and response codes.

Companies 39
GET
/companies
Batch Get Company By Id Or Urn
batch_get_company_by_id_or_urn_companies_get 4 params → 200422
POST
/companies
Get Company By Identifiers
get_company_by_identifiers_companies_post 16 params → 200422
POST
/companies/entries
Global Import Companies
global_import_companies_companies_entries_post body → 200422
GET
/companies/custom_fields
Get Global Custom Fields
get_global_custom_fields_companies_custom_fields_get → 200
POST
/companies/custom_field
Create Global Custom Field
create_global_custom_field_companies_custom_field_post body → 200422
PUT
/companies/custom_field
Update Global Custom Field
update_global_custom_field_companies_custom_field_put 1 param body → 200422
DELETE
/companies/custom_field
Delete Custom Field
delete_custom_field_companies_custom_field_delete 1 param → 200422
POST
/companies/batchGet
Batch Get Companies By Id Or Urn Using Post
batch_get_companies_by_id_or_urn_using_post_companies_batchGet_post 1 param body → 200422
GET
/companies/{id_or_urn}
Get Company By Id Or Urn
get_company_by_id_or_urn_companies__id_or_urn__get 3 params → 200422
GET
/companies/{id_or_urn}/employees
Get Employees
get_employees_companies__id_or_urn__employees_get 6 params → 200422
GET
/companies/{id_or_urn}/userConnections
Get User Connections
get_user_connections_companies__id_or_urn__userConnections_get 1 param → 200422
POST
/companies/attachments
Batch Get Attachments
batch_get_attachments_companies_attachments_post body → 200422
DELETE
/companies/attachments
Batch Delete Attachments
batch_delete_attachments_companies_attachments_delete body → 200422
POST
/companies/{id_or_urn}/attachments
Batch Create Attachments
batch_create_attachments_companies__id_or_urn__attachments_post 1 param body → 200422
PUT
/companies/{id_or_urn}/attachments
Batch Complete Upload
batch_complete_upload_companies__id_or_urn__attachments_put 1 param body → 200422
PATCH
/companies/{id_or_urn}/attachments
Link Attachments
link_attachments_companies__id_or_urn__attachments_patch 1 param body → 200422
GET
/companies/{id_or_urn}/attachments/{urn}
Get Attachment Content
get_attachment_content_companies__id_or_urn__attachments__urn__get 3 params → 200422
DELETE
/companies/{id_or_urn}/attachments/{urn}
Delete Attachment
delete_attachment_companies__id_or_urn__attachments__urn__delete 2 params → 200422
GET
/watchlists/companies
Get Company Watchlists By Owner
get_company_watchlists_by_owner_watchlists_companies_get 5 params → 200422
POST
/watchlists/companies
Create Company Watchlist
create_company_watchlist_watchlists_companies_post body → 200422
POST
/watchlists/companies/{id_or_urn}/custom_field
Create Company Watchlist Custom Field
create_company_watchlist_custom_field_watchlists_companies__id_or_urn__custom_field_post 1 param body → 200422
PUT
/watchlists/companies/{id_or_urn}/custom_field
Update Company Watchlist Custom Field
update_company_watchlist_custom_field_watchlists_companies__id_or_urn__custom_field_put 2 params body → 200422
DELETE
/watchlists/companies/{id_or_urn}/custom_field
Delete Company Watchlist Custom Field
delete_company_watchlist_custom_field_watchlists_companies__id_or_urn__custom_field_delete 1 param → 200422
GET
/watchlists/companies/{id_or_urn}/imports
Get Company Watchlist Imports
get_company_watchlist_imports_watchlists_companies__id_or_urn__imports_get 3 params → 200422
POST
/watchlists/companies/{id_or_urn}/named_views
Upsert Company Watchlist Named Views
upsert_company_watchlist_named_views_watchlists_companies__id_or_urn__named_views_post 2 params body → 200422
GET
/watchlists/companies/{id_or_urn}
Get Company Watchlist
get_company_watchlist_watchlists_companies__id_or_urn__get 6 params → 200422
PUT
/watchlists/companies/{id_or_urn}
Update Company Watchlist
update_company_watchlist_watchlists_companies__id_or_urn__put 1 param body → 200422
DELETE
/watchlists/companies/{id_or_urn}
Delete Company Watchlist
delete_company_watchlist_watchlists_companies__id_or_urn__delete 1 param → 200422
GET
/watchlists/companies/{id_or_urn}/entries
Get Company Watchlist Entries
get_company_watchlist_entries_watchlists_companies__id_or_urn__entries_get 8 params → 200422
POST
/watchlists/companies/{id_or_urn}/entries
Company Watchlist Add Entries
company_watchlist_add_entries_watchlists_companies__id_or_urn__entries_post 1 param body → 200422
POST
/watchlists/companies/{id_or_urn}:addCompanies
Add Companies To Company Watchlist
add_companies_to_company_watchlist_watchlists_companies__id_or_urn__addCompanies_post 1 param body → 200422
POST
/watchlists/companies/{id_or_urn}:removeCompanies
Remove Companies From Company Watchlist
remove_companies_from_company_watchlist_watchlists_companies__id_or_urn__removeCompanies_post 1 param body → 200422
POST
/watchlists/companies/{id_or_urn}/entries:batchDelete
Company Watchlist Batch Delete Entries
company_watchlist_batch_delete_entries_watchlists_companies__id_or_urn__entries_batchDelete_post 1 param body → 200422
GET
/watchlists/companies/imports/{id_or_urn}
Get User Company Import
get_user_company_import_watchlists_companies_imports__id_or_urn__get 1 param → 200422
GET
/watchlists/companies/imports/{id_or_urn}/entries
Get User Company Import Entries
get_user_company_import_entries_watchlists_companies_imports__id_or_urn__entries_get 4 params → 200422
POST
/search/companies_by_keywords
Search Companies By Keywords
search_companies_by_keywords_search_companies_by_keywords_post 2 params body → 200422
GET
/search/similar_companies/{id_or_urn}
Search Similar Companies
search_similar_companies_search_similar_companies__id_or_urn__get 2 params → 200422
GET
/search/typeahead
Typeahead Search
typeahead_search_search_typeahead_get 5 params → 200422
GET
/search/search_agent
Search Agent
search_agent_search_search_agent_get 4 params → 200422

Schemas 157

The contract defines 157 schemas that model the data the API accepts and returns. The most detailed are CompanyEnrichmentOutput (49 properties), CompanyOutput (48 properties), TractionMetrics (31 properties), CompanySnapshotOutput (24 properties). Each schema is shown below with its type and property counts.

ValidationError
object
5 properties 3 required
InvestorVisbility
string
CurrentlyRaising
object
3 properties
ContactMetadata
object
5 properties
CompanyWatchlistUpdateInput
object
3 properties
ListImportType
string
SingleListSelectCustomFieldValue
object
1 property
FundingStage
string
CompanyListEntriesBatchDeleteInput
object
1 property 1 required
UserCompaniesImportOutputWithStats
object
18 properties 10 required
SelectListCustomFieldValueOption
object
3 properties 2 required
FilterGroupGenerator
object
2 properties 2 required
Department
string
SearchType
string
CurrentlyRaisingEnum
string
CreateCompanyListCustomFieldInput
object
4 properties 2 required
BatchCompleteUploadRequest
object
1 property 1 required
CompanyListNamedViewUpsertInput
object
7 properties
RecordReferenceListCustomFieldValue
object
1 property
BatchDeleteAttachmentsRequest
object
1 property 1 required
TractionMetricsTimeSeriesMetric
object
2 properties 2 required
Acquisition
object
1 property 1 required
CompanyWatchlistInput
object
4 properties 2 required
ResourceUrnResponse_CompanyListCustomFieldUrn_
object
2 properties 1 required
SelectListCustomFieldMetadataInputSchema
object
1 property
TypeaheadSearchOutput
object
3 properties 1 required
ListNamedViewDisplayType
string
SearchOutput_Union_CompanyUrn__CompanyOutput__
object
3 properties 1 required
LocationMetadata
object
8 properties
GetCompanyWatchlistEntriesOutput
object
3 properties
KeywordSearchInput
object
6 properties
PersonListCustomFieldMetadata
object
1 property 1 required
services__midtier__schemas__common__Highlight-Output
object
4 properties 1 required
DateListCustomFieldValue
object
1 property
services__midtier__schemas__saved_search__Sort
object
3 properties 2 required
CompanyFieldInputValue
object
2 properties 2 required
DateListCustomFieldDefaultValue
object
2 properties 1 required
RoleType
string
EmployeeGroupType
string
Filter
object
4 properties 2 required
CompanySnapshotOutput
object
24 properties 1 required
FilterGroupGeneratorId
string
CompanyCanonicalParameter
object
4 properties
BatchCreateAttachmentsOutput
object
1 property 1 required
Sort-Output
object
3 properties 2 required
ResourceUrnResponse_Union_CompanyWatchlistUrn__SynapseListUrn__
object
2 properties 1 required
TagOutput
object
6 properties 3 required
StatusListCustomFieldValue
object
1 property
TypeaheadSubtype
string
WebsiteListCustomFieldValue
object
1 property
CreateAttachmentRequest
object
3 properties 3 required
CreateAttachmentOutput
object
8 properties 8 required
LimitedApiRequestModel-Output
object
2 properties
FundingCompletionStatus
string
LinkAttachmentsRequest
object
1 property 1 required
ImportCompaniesCanonicalsOutput
object
5 properties 5 required
DateListCustomFieldMetadata
object
1 property
TextListCustomFieldValue
object
1 property
PaginationMetadata
object
3 properties 1 required
TagType
string
FacebookSocialMetadata
object
6 properties
CompanyOutput
object
48 properties 2 required
IndexMethod
integer
ParsedQueryModel-Output
object
10 properties
FundingAttributeNullStatus
string
Describes how to interpret a null value for a funding attribute on a Company object. Affects the following Company fields: - numfundingrounds - numinvestors -…
CompanyListEntryInput
object
6 properties
Attachments
object
3 properties
TypeaheadSearchType
string
CheckboxListCustomFieldValue
object
1 property
Investor
object
2 properties
NumberListCustomFieldValueFormat
string
SearchOutput_PersonUrn_
object
3 properties 1 required
FundingMetadata-Output
object
9 properties
ValuationInfo
object
Base valuation info - used for per-funding-round valuation.
3 properties
UserConnectionStatus
string
FounderProvidedAttachment
object
3 properties 1 required
DateListCustomFieldDefaultValueMode
string
TractionMetricsPoint
object
3 properties
UserWatchlistType
string
UserImportedCompanyOutput
object
15 properties 5 required
PersonMetadata-Output
object
11 properties 1 required
BatchCompanyAttachmentsOutput
object
2 properties 2 required
Body_remove_companies_from_company_watchlist_watchlists_companies__id_or_urn__removeCompanies_post
object
2 properties
PersonSelectCustomFieldValue
object
1 property
CompanyListEntriesBatchImportInput
object
1 property 1 required
FounderStory
object
3 properties
UnifiedExternalCompanyListEntryModel
object
10 properties 3 required
PersonHighlightCategory
string
DateListCustomFieldValueFormat
string
Rebranding
object
1 property
TractionMetrics
object
31 properties 23 required
Subsidiary
object
1 property 1 required
FundingRoundInvestor
object
6 properties 3 required
StealthEmergence
object
2 properties
SelectListCustomFieldMetadata
object
2 properties
AttachmentMetadataOutput
object
10 properties 10 required
FoundingDate-Output
object
2 properties 2 required
TractionMetricsInfo
object
7 properties 5 required
ApiSearchQuery-Input
object
5 properties 2 required
FoundingDatePrecision
string
FacetModel
object
4 properties 3 required
CompanyWatchlistEntry
object
8 properties 5 required
CompanyBatchGetInput
object
3 properties
BatchCompanyAttachmentsRequest
object
1 property 1 required
WebsiteMetadata
object
3 properties
FilterGroup-Output
object
4 properties 1 required
FundingType
string
SelectListCustomFieldValueOptionInputSchema
object
4 properties 2 required
SocialMetadata
object
4 properties
Body_add_companies_to_company_watchlist_watchlists_companies__id_or_urn__addCompanies_post
object
2 properties
ApiSearchQuery-Output
object
5 properties 2 required
EmployeeStatus
string
SearchAgentCursorSearchOutput
object
4 properties 2 required
CompanyHighlightCategory
string
PersonListCustomFieldValueMode
string
TypeaheadEntity
object
10 properties 3 required
PersonListCustomFieldDefaultValue
object
2 properties 1 required
CompanyListNamedViewColumnViewSettings
object
2 properties 1 required
CompanyEnrichmentOutput
object
49 properties 2 required
MultiSelectListCustomFieldValue
object
1 property
UpdateCompanyListCustomFieldInput
object
3 properties 1 required
UserConnectionSource
string
CompanyValuationInfo-Output
object
Company-level valuation info - extends base with staleness fields.
5 properties
ListCustomFieldType
string
NotableFollowerOutput
object
A tracked notable account (firm or individual investor) following a person at the company, or the company's own X handle.
7 properties 2 required
FilterGroup-Input
object
5 properties 1 required
CompanyRelationship
object
7 properties
GetAttachmentContentResponse
object
1 property 1 required
DBOperationMetadata
object
4 properties
FundingRoundOutput
object
13 properties 4 required
PersonListCustomFieldDefaultValueMode
string
UserCompanyImportEntries
object
1 property 1 required
SearchResult_CompanyUrn_
object
2 properties 1 required
SortContextArguments
object
5 properties
OwnershipStatus
string
CompanyListCustomFieldOutput
object
8 properties 6 required
UserCompaniesImportsOutput
object
2 properties 2 required
CompanyListNamedViewOutput
object
10 properties 7 required
TypeaheadSource
string
HTTPValidationError
object
1 property
SearchOutput_CompanyUrn_
object
3 properties 1 required
ResourceUrnResponse_Union_CompanyListCustomFieldUrn__ListAttributeUrn__RecordAttributeUrn__
object
2 properties 1 required
SocialStatus
integer
RecordReferenceListCustomFieldMetadata
object
3 properties 2 required
NumberListCustomFieldMetadata
object
1 property
CompanyWatchlistOutput
object
15 properties 7 required
BatchCreateAttachmentsRequest
object
1 property 1 required
PersonSelectCustomFieldValueInput
object
1 property
CompanyType
string
Pagination
object
2 properties 1 required
CompanyListEntriesBatchDeleteOutput
object
1 property
UserConnectionExtendedOutput
object
8 properties 2 required
AttachmentMetadataListOutput
object
1 property 1 required
CompaniesModel
object
Model representing company data for search and filtering. Extracted to avoid circular imports between savedsearch.py and facetparsingschemas.py
4 properties 3 required
CompanyListCustomFieldValueOutput
object
6 properties 6 required
NumberListCustomFieldValue
object
1 property
ValuationSource
string
Source classification for valuation data.

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

harmonic-ai-companies-api-openapi.yml Raw ↑
#Startup Intelligence#Venture Capital#Company Data#People Data#investor-data#Funding Data#Data Enrichment#Sales Intelligence#Market Intelligence#GraphQL#MCP#Agent-Native
← Back to H APIs
API Details
ID
harmonic-ai:harmonic-rest-graphql-api
Base URL
https://api.harmonic.ai/
Docs
https://console.harmonic.ai/docs/api-reference/introduction
Provider
Harmonic Ai
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This is an independent, third-party profile of Harmonic REST & GraphQL 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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