# API Question **URL:** http://forum.companieshouse.gov.uk/c/api-question/22.md?page=1 [Latest](http://forum.companieshouse.gov.uk/latest.md) · [Categories](http://forum.companieshouse.gov.uk/categories.md) **Page:** 2 --- ## [AWS Infrastructure Compatibility Question](http://forum.companieshouse.gov.uk/t/aws-infrastructure-compatibility-question/12499)
**Author:** [@kyrylo.skriaha](http://forum.companieshouse.gov.uk/u/kyrylo.skriaha)\ **Replies:** 1\ **Last updated:** [December 9, 2025, 3:31pm UTC](http://forum.companieshouse.gov.uk/t/aws-infrastructure-compatibility-question/12499 "2025-12-09T15:31:13Z")
Hi, Quick question: Are there any known issues or restrictions with accessing your APIs from AWS infrastructure (Lambda, EC2, NAT Gateways)? Thanks! --- ## [Streaming API - Periodic Short-Lived Connections (Scheduled Lambda Catch-up Pattern)](http://forum.companieshouse.gov.uk/t/streaming-api-periodic-short-lived-connections-scheduled-lambda-catch-up-pattern/12502)
**Author:** [@kyrylo.skriaha](http://forum.companieshouse.gov.uk/u/kyrylo.skriaha)\ **Replies:** 1\ **Last updated:** [December 9, 2025, 3:30pm UTC](http://forum.companieshouse.gov.uk/t/streaming-api-periodic-short-lived-connections-scheduled-lambda-catch-up-pattern/12502 "2025-12-09T15:30:34Z")
Hi, We’re planning to use the Streaming API with periodic reconnections every 30 minutes via scheduled AWS Lambda: Connect with last saved timepoint Read available events Save timepoint and disconnect Repeat in 30 min… --- ## [Can Stream API return event with an updated filing document?](http://forum.companieshouse.gov.uk/t/can-stream-api-return-event-with-an-updated-filing-document/12510)
**Author:** [@kyrylo.skriaha](http://forum.companieshouse.gov.uk/u/kyrylo.skriaha)\ **Replies:** 1\ **Last updated:** [December 9, 2025, 3:30pm UTC](http://forum.companieshouse.gov.uk/t/can-stream-api-return-event-with-an-updated-filing-document/12510 "2025-12-09T15:30:13Z")
Hello, We’re trying to understand if we need to handle rewrites of filings documents that were already fetched. So, the question is - can we get events with the document updates from Streaming API? Specifically, when t… --- ## [Company Snapshot and Update Specification - 4.4.1 Change Clarification](http://forum.companieshouse.gov.uk/t/company-snapshot-and-update-specification-4-4-1-change-clarification/12514)
**Author:** [@1robertchambers](http://forum.companieshouse.gov.uk/u/1robertchambers)\ **Replies:** 0\ **Last updated:** [December 5, 2025, 4:41pm UTC](http://forum.companieshouse.gov.uk/t/company-snapshot-and-update-specification-4-4-1-change-clarification/12514 "2025-12-05T16:41:45Z")
The specification in Company Snapshot and Update Specification is unclear on 4.4.1. The spec is not explicit on what to change in the case that CORRECTION-INDICATOR is set to space. It says “(i) Any change of Name will n… --- ## [Relationship between bulk data and update data](http://forum.companieshouse.gov.uk/t/relationship-between-bulk-data-and-update-data/12513)
**Author:** [@1robertchambers](http://forum.companieshouse.gov.uk/u/1robertchambers)\ **Replies:** 0\ **Last updated:** [December 5, 2025, 3:07pm UTC](http://forum.companieshouse.gov.uk/t/relationship-between-bulk-data-and-update-data/12513 "2025-12-05T15:07:55Z")
Say I have Prod195\_3882.txt, bulk file. Would this be the equivalent of applying the following update files to the previous bulk file: Prod198\_3880, Prod198\_3881 AND Prod198\_3882 or would it just be Prod198\_3880, Pr… --- ## [Streaming API timepoints and endpoints](http://forum.companieshouse.gov.uk/t/streaming-api-timepoints-and-endpoints/8524)
**Author:** [@juris](http://forum.companieshouse.gov.uk/u/juris)\ **Replies:** 7\ **Last updated:** [November 26, 2025, 3:15pm UTC](http://forum.companieshouse.gov.uk/t/streaming-api-timepoints-and-endpoints/8524 "2025-11-26T15:15:02Z")
Hello, I have a few questions and would appreciate your help in clarifying them. I need some assistance with understanding a few things related to StreamingAPI: 1.1 The API’s different endpoints seem to have differen… --- ## [403 error when trying to use "upload a document to companies house"](http://forum.companieshouse.gov.uk/t/403-error-when-trying-to-use-upload-a-document-to-companies-house/12344)
**Author:** [@alison.brennan](http://forum.companieshouse.gov.uk/u/alison.brennan)\ **Replies:** 2\ **Last updated:** [November 14, 2025, 2:11pm UTC](http://forum.companieshouse.gov.uk/t/403-error-when-trying-to-use-upload-a-document-to-companies-house/12344 "2025-11-14T14:11:47Z")
Since yesterday I keep getting “403 Forbidden” once I get to the point of selecting SH06 which is the document I want to upload. I have tried using firefox instead of edge but got the same result and am not sure if it is… --- ## [Other Fields to Pull from Companies House](http://forum.companieshouse.gov.uk/t/other-fields-to-pull-from-companies-house/12308)
**Author:** [@carmeladawn1023](http://forum.companieshouse.gov.uk/u/carmeladawn1023)\ **Replies:** 3\ **Last updated:** [November 10, 2025, 9:03am UTC](http://forum.companieshouse.gov.uk/t/other-fields-to-pull-from-companies-house/12308 "2025-11-10T09:03:36Z")
Hi, We are using the Companies House in Salesforce to validate the Company details like Company Name, Billing Address, etc. Is it possible to pull details like Phone Number, Website, 4 digit SIC Codes, Contact Name, an… --- ## [Using pagination on search companies](http://forum.companieshouse.gov.uk/t/using-pagination-on-search-companies/12373)
**Author:** [@faca](http://forum.companieshouse.gov.uk/u/faca)\ **Replies:** 1\ **Last updated:** [November 7, 2025, 7:16pm UTC](http://forum.companieshouse.gov.uk/t/using-pagination-on-search-companies/12373 "2025-11-07T19:16:43Z")
Hello. I’m starting to use this api in my application and I am struggling to understand how to proper user the paging options for the search/company endpoint. when I set items\_per\_page=100 it seems that I can only read… --- ## [Companies House Identity Verifcation](http://forum.companieshouse.gov.uk/t/companies-house-identity-verifcation/12345)
**Author:** [@sanjay](http://forum.companieshouse.gov.uk/u/sanjay)\ **Replies:** 0\ **Last updated:** [November 5, 2025, 7:17am UTC](http://forum.companieshouse.gov.uk/t/companies-house-identity-verifcation/12345 "2025-11-05T07:17:39Z")
As an Authorised Corporate Service Provider, we use our own software to collect and verify the identity of our clients. Once the verification process is complete, we log into the Companies House website to submit the nec… --- ## [When will "identity\_verification\_details" be uploaded for Officers/Directors](http://forum.companieshouse.gov.uk/t/when-will-identity-verification-details-be-uploaded-for-officers-directors/12338)
**Author:** [@louis](http://forum.companieshouse.gov.uk/u/louis)\ **Replies:** 0\ **Last updated:** [November 3, 2025, 11:47am UTC](http://forum.companieshouse.gov.uk/t/when-will-identity-verification-details-be-uploaded-for-officers-directors/12338 "2025-11-03T11:47:37Z")
“identity\_verification\_details” now appears for PSC endpoint in the Public Data API. When will the same start appearing for Officers/Directors? edit: it looks like the updates are happening now. --- ## [Clarification on new verification date fields in REST JSON API](http://forum.companieshouse.gov.uk/t/clarification-on-new-verification-date-fields-in-rest-json-api/12311)
**Author:** [@pedro](http://forum.companieshouse.gov.uk/u/pedro)\ **Replies:** 1\ **Last updated:** [October 30, 2025, 3:24pm UTC](http://forum.companieshouse.gov.uk/t/clarification-on-new-verification-date-fields-in-rest-json-api/12311 "2025-10-30T15:24:14Z")
Following the discussion on IDV deadlines from last Friday — where it was mentioned that the REST JSON API will soon include new verification date fields (e.g. VERIFICATION\_STMT\_DATE, VERIFICATION\_STMT\_DUE\_DATE, APPT\_VER… --- ## [API Rate Limit Increase Request and private bulk data products](http://forum.companieshouse.gov.uk/t/api-rate-limit-increase-request-and-private-bulk-data-products/12252)
**Author:** [@elliot.britton](http://forum.companieshouse.gov.uk/u/elliot.britton)\ **Replies:** 1\ **Last updated:** [October 20, 2025, 12:42pm UTC](http://forum.companieshouse.gov.uk/t/api-rate-limit-increase-request-and-private-bulk-data-products/12252 "2025-10-20T12:42:53Z")
Hi, I sent a request to the enquires email but they directed me to the forum so hopefully this is the right place. I would like to request an increased rate limit to the Companies House API. I am also interested what … --- ## [Request for Test Company Number and Auth Code for API Testing](http://forum.companieshouse.gov.uk/t/request-for-test-company-number-and-auth-code-for-api-testing/12238)
**Author:** [@productivelydev](http://forum.companieshouse.gov.uk/u/productivelydev)\ **Replies:** 0\ **Last updated:** [October 15, 2025, 2:42pm UTC](http://forum.companieshouse.gov.uk/t/request-for-test-company-number-and-auth-code-for-api-testing/12238 "2025-10-15T14:42:38Z")
Hi Team, I’ve completed the address update scenario using the Companies House API. To test the full workflow, please share a dummy company number and authentication code for development. --- ## [Psc/Director verification dates - need the final schema and go live date](http://forum.companieshouse.gov.uk/t/psc-director-verification-dates-need-the-final-schema-and-go-live-date/12208)
**Author:** [@ben5](http://forum.companieshouse.gov.uk/u/ben5)\ **Replies:** 0\ **Last updated:** [October 9, 2025, 11:02am UTC](http://forum.companieshouse.gov.uk/t/psc-director-verification-dates-need-the-final-schema-and-go-live-date/12208 "2025-10-09T11:02:44Z")
Following on from this earlier post ('Officers' and ‘Persons with significant control’ resource specification update) about the new fields in the PSC and officers schemas (and stream) it suggested that we’d get the exact… --- ## [Clarification on OAuth 2.0 Client Creation Policy for Companies House Test Environment](http://forum.companieshouse.gov.uk/t/clarification-on-oauth-2-0-client-creation-policy-for-companies-house-test-environment/12200)
**Author:** [@productivelydev](http://forum.companieshouse.gov.uk/u/productivelydev)\ **Replies:** 0\ **Last updated:** [October 7, 2025, 1:24pm UTC](http://forum.companieshouse.gov.uk/t/clarification-on-oauth-2-0-client-creation-policy-for-companies-house-test-environment/12200 "2025-10-07T13:24:31Z")
We’re integrating our product Productively with the Companies House API via OAuth 2.0. Before proceeding, we’d like clarification on the current policy and limitations around creating OAuth clients in the Test (sandbox) … --- ## [Perform Identity Verification of Pscs via API](http://forum.companieshouse.gov.uk/t/perform-identity-verification-of-pscs-via-api/12201)
**Author:** [@sinhaabhishekaakash](http://forum.companieshouse.gov.uk/u/sinhaabhishekaakash)\ **Replies:** 0\ **Last updated:** [October 7, 2025, 3:05pm UTC](http://forum.companieshouse.gov.uk/t/perform-identity-verification-of-pscs-via-api/12201 "2025-10-07T15:05:57Z")
Hi there, I was wondering if there’s currently any API available for performing identity verification of PSCs through an Authorised Corporate Service Provider (ACSP)? If not, I’d love to know if there are any plans to … --- ## [Advanced search API for Incorporation Date](http://forum.companieshouse.gov.uk/t/advanced-search-api-for-incorporation-date/12162)
**Author:** [@hallam.knight](http://forum.companieshouse.gov.uk/u/hallam.knight)\ **Replies:** 1\ **Last updated:** [October 2, 2025, 7:28pm UTC](http://forum.companieshouse.gov.uk/t/advanced-search-api-for-incorporation-date/12162 "2025-10-02T19:28:04Z")
I’m looking to call the CH API to get information on newly incorporated companies (i.e. all companies incorporated yesterday, for example). I’m under the impression that this is possible, but only with access to the adva… --- ## [More information on the new elements in the officers and PSC APIs](http://forum.companieshouse.gov.uk/t/more-information-on-the-new-elements-in-the-officers-and-psc-apis/12142)
**Author:** [@ben5](http://forum.companieshouse.gov.uk/u/ben5)\ **Replies:** 5\ **Last updated:** [October 1, 2025, 3:14pm UTC](http://forum.companieshouse.gov.uk/t/more-information-on-the-new-elements-in-the-officers-and-psc-apis/12142 "2025-10-01T15:14:37Z")
There was a recent post about new fields that will be added to the officers/PSC API for the ECCT act identity checking changes. Can you provide a bit more info on the fields “identity\_verification\_details. appointment\_… --- ## [Advanced filtering of companies when searching](http://forum.companieshouse.gov.uk/t/advanced-filtering-of-companies-when-searching/12145)
**Author:** [@chris6](http://forum.companieshouse.gov.uk/u/chris6)\ **Replies:** 1\ **Last updated:** [September 19, 2025, 12:36pm UTC](http://forum.companieshouse.gov.uk/t/advanced-filtering-of-companies-when-searching/12145 "2025-09-19T12:36:40Z")
Hello, I’d like to search for companies using either the normal company search or the advanced company search API, but would like to filter the list to only those companies that have filed at least one set of iXBRL acco… --- ## [Confirmation Statement and PSC Submission Failing for new verification details](http://forum.companieshouse.gov.uk/t/confirmation-statement-and-psc-submission-failing-for-new-verification-details/12110)
**Author:** [@dinesh.komakula](http://forum.companieshouse.gov.uk/u/dinesh.komakula)\ **Replies:** 4\ **Last updated:** [September 17, 2025, 7:21am UTC](http://forum.companieshouse.gov.uk/t/confirmation-statement-and-psc-submission-failing-for-new-verification-details/12110 "2025-09-17T07:21:56Z")
Hi Simon I’m trying to submit a Confirmation and Verification Statement, but it’s being rejected with the following error: {‘RaisedBy’: ‘ConfirmationAndVerificationStatement’, ‘Number’: ‘9999’, ‘Type’: ‘fatal’, ‘Text’:… --- ## [Question regarding Corporate Annotations](http://forum.companieshouse.gov.uk/t/question-regarding-corporate-annotations/12089)
**Author:** [@ash](http://forum.companieshouse.gov.uk/u/ash)\ **Replies:** 3\ **Last updated:** [September 11, 2025, 9:08am UTC](http://forum.companieshouse.gov.uk/t/question-regarding-corporate-annotations/12089 "2025-09-11T09:08:42Z")
Hi, we’ve been trying to find out more about Corporate Annotations and how they are applied. My main question/concern is whether or not their application is automatic and absolute. That is to say can we reliably infer t… --- ## [500 error advanced-search using start\_index](http://forum.companieshouse.gov.uk/t/500-error-advanced-search-using-start-index/5095)
**Author:** [@ryan.bentham](http://forum.companieshouse.gov.uk/u/ryan.bentham)\ **Replies:** 7\ **Last updated:** [September 5, 2025, 1:21pm UTC](http://forum.companieshouse.gov.uk/t/500-error-advanced-search-using-start-index/5095 "2025-09-05T13:21:58Z")
I’m trying to run this query: https://api.company-information.service.gov.uk/advanced-search/companies?company\_status=active&size=5000&start\_index=10000 I assumed this would effectively provide the 3rd page of results.… --- ## [Reconnection to streaming API](http://forum.companieshouse.gov.uk/t/reconnection-to-streaming-api/12062)
**Author:** [@phillip](http://forum.companieshouse.gov.uk/u/phillip)\ **Replies:** 1\ **Last updated:** [September 5, 2025, 8:21am UTC](http://forum.companieshouse.gov.uk/t/reconnection-to-streaming-api/12062 "2025-09-05T08:21:11Z")
What is the reconnection recommended reconnection time when the streaming endpoints disconnect? I have noticed in the last couple of months that I keep getting 502 and 503 responses before I get a 200. Ultimately this sh… --- ## [Shareholder information](http://forum.companieshouse.gov.uk/t/shareholder-information/4233)
**Author:** [@dinesh.singh](http://forum.companieshouse.gov.uk/u/dinesh.singh)\ **Replies:** 9\ **Last updated:** [August 15, 2025, 3:26pm UTC](http://forum.companieshouse.gov.uk/t/shareholder-information/4233 "2025-08-15T15:26:12Z")
Hi I want to get shareholder information through API. can you please guide me about it. how to get shareholder details of a company using API. Thanks --- ## [ACSPs reporting](http://forum.companieshouse.gov.uk/t/acsps-reporting/11829)
**Author:** [@stanislava.bazitova](http://forum.companieshouse.gov.uk/u/stanislava.bazitova)\ **Replies:** 2\ **Last updated:** [July 21, 2025, 2:23pm UTC](http://forum.companieshouse.gov.uk/t/acsps-reporting/11829 "2025-07-21T14:23:19Z")
Is there currently an API available for ACSPs to report completed identity verification checks to Companies House? --- ## [Financial Data from API / Bulk Data File - XBRL](http://forum.companieshouse.gov.uk/t/financial-data-from-api-bulk-data-file-xbrl/11859)
**Author:** [@Jlc](http://forum.companieshouse.gov.uk/u/Jlc)\ **Replies:** 2\ **Last updated:** [July 21, 2025, 2:21pm UTC](http://forum.companieshouse.gov.uk/t/financial-data-from-api-bulk-data-file-xbrl/11859 "2025-07-21T14:21:40Z")
I’m looking to bulk download XBRL data using the API, essentially trying to database all financial data for each UK company for the past 5 years. Edit: also using the Bulk Data file for XBRL access I have been told I s… --- ## [Clarity on Beta and Version Control](http://forum.companieshouse.gov.uk/t/clarity-on-beta-and-version-control/11807)
**Author:** [@tom.winton](http://forum.companieshouse.gov.uk/u/tom.winton)\ **Replies:** 0\ **Last updated:** [July 8, 2025, 12:41pm UTC](http://forum.companieshouse.gov.uk/t/clarity-on-beta-and-version-control/11807 "2025-07-08T12:41:36Z")
Hello I can see these api’s are reportedly in Beta, once moving out of Beta version control will be implemented however that appears to have been the case for 10 years. Is this genuinely in Beta? Will Version Control … --- ## [Access to the \*\*Transaction API\*\* (\`POST /transactions\`)](http://forum.companieshouse.gov.uk/t/access-to-the-transaction-api-post-transactions/11691)
**Author:** [@angel](http://forum.companieshouse.gov.uk/u/angel)\ **Replies:** 0\ **Last updated:** [June 19, 2025, 10:48am UTC](http://forum.companieshouse.gov.uk/t/access-to-the-transaction-api-post-transactions/11691 "2025-06-19T10:48:05Z")
Dear Companies House Developer Support I’m currently developing an accounting software integration called “GroupBooks”, which includes functionality to file statutory accounts via your API. So far, I’ve successfully im… --- ## [Requesting a higher rate limit](http://forum.companieshouse.gov.uk/t/requesting-a-higher-rate-limit/11660)
**Author:** [@wefrick](http://forum.companieshouse.gov.uk/u/wefrick)\ **Replies:** 1\ **Last updated:** [June 17, 2025, 10:56am UTC](http://forum.companieshouse.gov.uk/t/requesting-a-higher-rate-limit/11660 "2025-06-17T10:56:40Z")
The says that a higher rate limit for the API can be requested and refers to the contact page. I sent a request to enquiries@companieshouse.gov.uk and was told to ask here in the forum for a higher rate limit. Thanks a… [Previous page](http://forum.companieshouse.gov.uk/c/api-question/22.md) [Next page](http://forum.companieshouse.gov.uk/c/api-question/22.md?page=2)