coresignal

name

coresignal

description

Coresignal provides large-scale public web data for investment, HR tech, and other industries. It offers datasets on companies, jobs, people, and more to power business insights and machine learning models. Read and write Coresignal data through One: datarequests, datarequestfiles, employeebase, companybase, companyclean, companymultisource and more, 38 actions with real parameter documentation. Use whenever the user asks to look something up in Coresignal, create or update a record there, or build code against the Coresignal API.

Coresignal through One

Coresignal provides large-scale public web data for investment, HR tech, and other industries. It offers datasets on companies, jobs, people, and more to power business insights and machine learning models.

One exposes Coresignal through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

1. Find the action in the table below, or call search_one_platform_actions with platform coresignal if it is not listed.
2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm Coresignal is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real Coresignal account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

DataRequests

Action	Method	Path	Action id
Download a Data Request File (Bulk Collect)	GET	/data_requests/{{dataRequestId}}/files/{{fileName}}	conn_mod_def::GJ2LfJPo_JA::dzveG86bSOeVXGqXXLf5Wg
Download a Data Request File (Bulk Job Posting Dataset)	GET	/data_requests/{{dataRequestId}}/files/{{fileName}}	conn_mod_def::GJ2LhiBthns::gD-7yVycQBqrpK02iOAaIA
Create an Employee Base Data Request (Filter Search)	POST	/data_requests/employee_base/filter	conn_mod_def::GJ2LfhfrOsE::pu8I9M-QRyO9GBofOw1tSA
Submit a Bulk Job Base Data Request by ID File	POST	/data_requests/job_base/id_file	conn_mod_def::GJ2Lhx4aFkY::SzDsjPLfRdSaCBHtfbdRHw

DataRequestFiles

Action	Method	Path	Action id
Download a Data Request File (Bulk Employee Data)	GET	/data_requests/{{dataRequestId}}/files/{{fileName}}	conn_mod_def::GJ2LgYquTAE::kT0mC4_cSmi2QrzASo83Mw
Get Bulk Employee Data Request File Names (Status)	GET	/data_requests/{{dataRequestId}}/files	conn_mod_def::GJ2LfQs7a_g::m9LvItxER-SCRoGnJCGqNQ
Get Bulk Job Data Request Files (List File Names)	GET	/data_requests/{{dataRequestId}}/files	conn_mod_def::GJ2LhpomlrU::VV2DqMBXTuKKAQiUT4eukg
Get Data Request Files (List File Names) for a Bulk Employee Data Request	GET	/data_requests/{{dataRequestId}}/files	conn_mod_def::GJ2LghwT5GM::dFwxOY3ST7isvXg2IaVAYQ

EmployeeBase

Action	Method	Path	Action id
Collect a Base Employee Profile (by ID or Shorthand Name)	GET	/employee_base/collect/{{employeeKey}}	conn_mod_def::GJ2LfpIXUPQ::CPKIuzUTTE2YuYSnBdNYJA
Map Employee IDs to Base Employee IDs	POST	/cdapi/v2/employee_base/map/ids	conn_mod_def::GJ2Lf8giWZ4::tZl60bP8QX-4pjZ8yAh2gA
Search Base Employee Profiles (Custom Filters)	POST	/v2/employee_base/search/filter	conn_mod_def::GJ2LgE_gQSI::xAMiIrQyRuaks6rd2aalmQ
Search Base Employee Records (Elasticsearch DSL)	POST	/cdapi/v2/employee_base/search/es_dsl	conn_mod_def::GJ2LfyJLhT8::G89oSks7TR61nITd83tJtw

CompanyBase

Action	Method	Path	Action id
Collect a Company Profile (by ID or Shorthand Name)	GET	/company_base/collect/{{companyIdentifier}}	conn_mod_def::GJ2Ldc8Wy78::CaXu0_p9RBiQyiEM_5t_eA
Search Base Company IDs (Elasticsearch DSL)	POST	/company_base/search/es_dsl	conn_mod_def::GJ2LdogCpfk::14Afeo9yQs6ki4FCj0VPtQ
Search Company Profiles Using Custom Filters (Company Base)	POST	/v2/company_base/search/filter	conn_mod_def::GJ2LdzfBePU::yjlsiHhdSz-ZNqFUUVNeCA

CompanyClean

Action	Method	Path	Action id
Collect a Clean Company Profile (by Company ID or Shorthand Name)	GET	/company_clean/collect/{{identifier}}	conn_mod_def::GJ2Ld63a8ZA::pF6MX83jRpSd3L_SDvm-yg
Enrich a Company Using a Website URL (Clean Company)	GET	/company_clean/enrich	conn_mod_def::GJ2LeM7-2Uw::4cWdNBl_QFOuPeCyb_SObQ
Search Clean Company IDs (Elasticsearch DSL)	POST	/cdapi/v2/company_clean/search/es_dsl	conn_mod_def::GJ2LeERyTGY::u26jbi8PQ3eZVWi6-G68jQ

CompanyMultiSource

Action	Method	Path	Action id
Collect a Multi-Source Company by ID or Shorthand Name	GET	/company_multi_source/collect/{{companyIdentifier}}	conn_mod_def::GJ2Leh2VuIQ::YkutnSGHTpiy5ezyg_Vk4A
Enrich a Company (Multi-source) by Website URL	GET	/cdapi/v2/company_multi_source/enrich	conn_mod_def::GJ2Le4VFsXg::D-lLe4m1QrShdm3UdVPwmg
Search Multi-source Companies (Elasticsearch DSL)	POST	/cdapi/v2/company_multi_source/search/es_dsl	conn_mod_def::GJ2Leq0-Ayo::z-nIBs-TSc2dSnqUMlBdLg

JobBase

Action	Method	Path	Action id
Collect a Job Posting by ID	GET	/job_base/collect/{{jobId}}	conn_mod_def::GJ2LiBpRwjE::QDixeN_LTdCV8O2VSWUuWQ
Search Job Posting IDs (Custom Filters)	POST	/cdapi/v2/job_base/search/filter	conn_mod_def::GJ2LiWVvfps::npdN8mq6TwGoUh21NBZ2Zg
Search Job Postings (ES DSL)	POST	/cdapi/v2/job_base/search/es_dsl	conn_mod_def::GJ2LiNZknVU::D4hLSiwDQsCRx8A6Q5pB5w

CompanyBaseDataRequests

Action	Method	Path	Action id
Create a Company Base Bulk Data Request (Search by Filters)	POST	/v2/data_requests/company_base/filter	conn_mod_def::GJ2LdUxx2xg::xyNjKMqkRSOzzG7rg9d0aw
Request Base Company Data in Bulk (Elasticsearch DSL)	POST	/v2/data_requests/company_base/es_dsl	conn_mod_def::GJ2Lc-byHKw::MYyfDOfJQcGmBZDQWl1pSA

EmployeeBaseDataRequests

Action	Method	Path	Action id
Request Base Employee Data in Bulk (Elasticsearch DSL)	POST	/data_requests/employee_base/es_dsl	conn_mod_def::GJ2LfA1-zAk::J6S8GMnMREiZJJ2BkWjfng
Submit an Employee Base Bulk Data Request by IDs File	POST	/v2/data_requests/employee_base/ids	conn_mod_def::GJ2LfZSIvlg::x4WM3UW8TIKUNKbafQiOSg

EmployeeCleanDataRequests

Action	Method	Path	Action id
Request Clean Employee Data in Bulk (Elasticsearch DSL)	POST	/data_requests/employee_clean/es_dsl	conn_mod_def::GJ2LgQVrZh0::4N-LN77PRyeCLBtrXO1VSg
Submit a Bulk Clean Employee Data Request Using an IDs File	POST	/data_requests/employee_clean/id_file	conn_mod_def::GJ2Lgp5PZrc::oQTpgfF_TyyBLVowD6KJpw

EmployeeClean

Action	Method	Path	Action id
Collect a Clean Employee Profile (by Employee ID or Shorthand Name)	GET	/employee_clean/collect/{{identifier}}	conn_mod_def::GJ2Lgxmssho::CdohRAmpQaWpZ21bJJTwSg
Search Clean Employee IDs (Elasticsearch DSL)	POST	/cdapi/v2/employee_clean/search/es_dsl	conn_mod_def::GJ2Lg-GralE::-bv_dQNOR5OCGycHfIEGNA

EmployeePosts

Action	Method	Path	Action id
Collect an Employee Post by Post ID	GET	/post_employee/collect/{{postId}}	conn_mod_def::GJ2LhJDmNv8::iw2QQWY7THuKdMRvsm-8RQ
Search Employee Posts (Coresignal Custom Filters)	POST	/cdapi/v2/post_employee/search/filter	conn_mod_def::GJ2LhY1G-Jg::cASw-d6BS4uxsm3WrP9k4g

CompanyDataRequests

Action	Method	Path	Action id
Submit a Company Data Request (Bulk) by Uploading an ID File	POST	/v2/data_requests/company_base/id_file	conn_mod_def::GJ2LdJJnXCw::Rx_HRfOaTnSlBxHj3XnsJA

HistoricalHeadcount

Action	Method	Path	Action id
Collect a Company’s Historical Headcount (by Company ID)	GET	/historical_headcount/collect/{{companyId}}	conn_mod_def::GJ2LeZMXAPA::rc5Qp_oUThe4bqtyAwnYqQ

PostEmployee

Action	Method	Path	Action id
Search Employee Posts (Elasticsearch DSL)	POST	/cdapi/v2/post_employee/search/es_dsl	conn_mod_def::GJ2LhRR5mVg::F8sMe94FR-yyo5jlAdZF1g

JobBaseDataRequests

Action	Method	Path	Action id
Search Job Postings in Bulk (Create a Job Base Data Request)	POST	/v2/data_requests/job_base/filter	conn_mod_def::GJ2Lh6VPIdc::Ag9uizv3SEiMseOsb6X0dA

When a call fails

The error comes from Coresignal, not from One. A 400 or 422 means your parameters do not match the schema, so re-read the knowledge and fix the field. A 401 or 403 means the connection needs re-authorizing, which no retry will fix. A 404 means the id is not on this account. A 429 means slow down. Never retry a write more than once: the first attempt may have landed.

Full catalog: https://www.withone.ai/knowledge/coresignal

Integration knowledge by One (withone.ai), licensed under One-Knowledge-1.0. Attribution must be preserved in derivative works.