# API Issues **URL:** http://forum.companieshouse.gov.uk/c/issues/5.md [Latest](http://forum.companieshouse.gov.uk/latest.md) · [Categories](http://forum.companieshouse.gov.uk/categories.md) --- ## [About the API Issues category](http://forum.companieshouse.gov.uk/t/about-the-api-issues-category/14)
**Author:** [@mfairhurst](http://forum.companieshouse.gov.uk/u/mfairhurst)\ **Replies:** 1\ **Last updated:** [January 23, 2020, 10:17am UTC](http://forum.companieshouse.gov.uk/t/about-the-api-issues-category/14 "2020-01-23T10:17:39Z")
Please use to log issues found with the API. --- ## [Live Streams down since early this morning \*resolved - flowing again \*](http://forum.companieshouse.gov.uk/t/live-streams-down-since-early-this-morning-resolved-flowing-again/13112)
**Author:** [@robbie\_crawford](http://forum.companieshouse.gov.uk/u/robbie_crawford)\ **Replies:** 0\ **Last updated:** [November 4, 2026, 7:49am UTC](http://forum.companieshouse.gov.uk/t/live-streams-down-since-early-this-morning-resolved-flowing-again/13112 "2026-11-04T07:49:26Z")
Hello All Just checking you guys know the live streams have been down since about 4 am? Getting sporadic company data but nada from the rest. Rgs Robbie --- ## [Power Automate custom connector: HTTP 400 “Invalid Authorization header”](http://forum.companieshouse.gov.uk/t/power-automate-custom-connector-http-400-invalid-authorization-header/13107)
**Author:** [@adelle.sanderson](http://forum.companieshouse.gov.uk/u/adelle.sanderson)\ **Replies:** 1\ **Last updated:** [November 3, 2026, 8:20am UTC](http://forum.companieshouse.gov.uk/t/power-automate-custom-connector-http-400-invalid-authorization-header/13107 "2026-11-03T08:20:13Z")
Hello, We’re connecting a live Companies House application to Microsoft Power Automate for read-only company verification. The connector uses: Host: api.company-information.service.gov.uk HTTPS and Basic authenticati… --- ## [ Guidance required on generating Companies House submission Transaction IDs](http://forum.companieshouse.gov.uk/t/guidance-required-on-generating-companies-house-submission-transaction-ids/13103)
**Author:** [@tejeswararaobudumuru](http://forum.companieshouse.gov.uk/u/tejeswararaobudumuru)\ **Replies:** 0\ **Last updated:** [November 2, 2026, 8:59am UTC](http://forum.companieshouse.gov.uk/t/guidance-required-on-generating-companies-house-submission-transaction-ids/13103 "2026-11-02T08:59:58Z")
Hello everyone, We are integrating our software with the Companies House accounts-submission service and would appreciate guidance on how to generate the transaction\_id correctly. Our software currently creates a 22-di… --- ## [Missing company-profile stream event for name change || company 16715457](http://forum.companieshouse.gov.uk/t/missing-company-profile-stream-event-for-name-change-company-16715457/13088)
**Author:** [@chaitanya.as](http://forum.companieshouse.gov.uk/u/chaitanya.as)\ **Replies:** 3\ **Last updated:** [October 23, 2026, 12:14pm UTC](http://forum.companieshouse.gov.uk/t/missing-company-profile-stream-event-for-name-change-company-16715457/13088 "2026-10-23T12:14:46Z")
Hello, We consume the Companies House Streaming API and believe we may have missed an event. Could you please help us confirm whether an event was published for the following change? Company details: Company number: … --- ## [Write Scope permission for PSC discrepancy apis](http://forum.companieshouse.gov.uk/t/write-scope-permission-for-psc-discrepancy-apis/13071)
**Author:** [@srikar](http://forum.companieshouse.gov.uk/u/srikar)\ **Replies:** 4\ **Last updated:** [October 19, 2026, 4:45pm UTC](http://forum.companieshouse.gov.uk/t/write-scope-permission-for-psc-discrepancy-apis/13071 "2026-10-19T16:45:25Z")
Dear CH support team, We are currently developing an integration with the Companies House PSC Discrepancy API and require the appropriate write permissions enabled for our application. Could you please add the “psc-dis… --- ## [New Live REST API key returns HTTP 400](http://forum.companieshouse.gov.uk/t/new-live-rest-api-key-returns-http-400/13075)
**Author:** [@freya.ashton956](http://forum.companieshouse.gov.uk/u/freya.ashton956)\ **Replies:** 1\ **Last updated:** [October 19, 2026, 12:33pm UTC](http://forum.companieshouse.gov.uk/t/new-live-rest-api-key-returns-http-400/13075 "2026-10-19T12:33:18Z")
My Live REST API key returns HTTP 400 Bad Request for GET requests to the Companies House public company endpoint. I created a new REST key and left Restricted IPs and JavaScript domains blank. The issue affects every co… --- ## [HTTP 403 / S3 AccessDenied for six filing PDFs (Document API and public links)](http://forum.companieshouse.gov.uk/t/http-403-s3-accessdenied-for-six-filing-pdfs-document-api-and-public-links/13023)
**Author:** [@karushev.hse](http://forum.companieshouse.gov.uk/u/karushev.hse)\ **Replies:** 3\ **Last updated:** [October 19, 2026, 8:08am UTC](http://forum.companieshouse.gov.uk/t/http-403-s3-accessdenied-for-six-filing-pdfs-document-api-and-public-links/13023 "2026-10-19T08:08:15Z")
Hello, Companies House customer support asked me to raise this issue here. We are conducting academic research using historical public filings and need help retrieving six specific PDFs. Our saved recovery records from… --- ## [Accessing data via API using python](http://forum.companieshouse.gov.uk/t/accessing-data-via-api-using-python/13062)
**Author:** [@pj1](http://forum.companieshouse.gov.uk/u/pj1)\ **Replies:** 2\ **Last updated:** [October 12, 2026, 12:15pm UTC](http://forum.companieshouse.gov.uk/t/accessing-data-via-api-using-python/13062 "2026-10-12T12:15:58Z")
I am trying to access data via the API REST route using python and need some help re the API key and any other credentials I might require. Be grateful for any assistance. Thanks, Pj --- ## [Increase API rate limits](http://forum.companieshouse.gov.uk/t/increase-api-rate-limits/6997)
**Author:** [@kasia.wawrynek](http://forum.companieshouse.gov.uk/u/kasia.wawrynek)\ **Replies:** 3\ **Last updated:** [October 8, 2026, 3:12pm UTC](http://forum.companieshouse.gov.uk/t/increase-api-rate-limits/6997 "2026-10-08T15:12:42Z")
Hi, My company’s API rate limit is 600 requests in a 5 minute period. Unfortunately due to multiple use cases for CH Query API and despite optimisations and use of Streaming API, we are sometimes getting 429 Too Many Re… --- ## [Production requests returning HTTP 403 from a hosting IP while identical requests succeed from a residential IP](http://forum.companieshouse.gov.uk/t/production-requests-returning-http-403-from-a-hosting-ip-while-identical-requests-succeed-from-a-residential-ip/13054)
**Author:** [@binyameenravat](http://forum.companieshouse.gov.uk/u/binyameenravat)\ **Replies:** 1\ **Last updated:** [October 5, 2026, 2:54pm UTC](http://forum.companieshouse.gov.uk/t/production-requests-returning-http-403-from-a-hosting-ip-while-identical-requests-succeed-from-a-residential-ip/13054 "2026-10-05T14:54:42Z")
Our application uses the Companies House API from a production hosting environment (Replit). We’ve been receiving HTTP 403 responses when running from that environment, while the exact same API key and exact same request… --- ## [REST API works in development but returns HTML 403 from deployed CRM](http://forum.companieshouse.gov.uk/t/rest-api-works-in-development-but-returns-html-403-from-deployed-crm/13048)
**Author:** [@favour](http://forum.companieshouse.gov.uk/u/favour)\ **Replies:** 1\ **Last updated:** [October 5, 2026, 8:52am UTC](http://forum.companieshouse.gov.uk/t/rest-api-works-in-development-but-returns-html-403-from-deployed-crm/13048 "2026-10-05T08:52:33Z")
Application name: LimitraCRM Live REST API key; Restricted IPs is blank A new key was configured and the CRM republished, but LIVE still fails DEV returns 200; LIVE returns 403 with an HTML access-denied response Endpoi… --- ## [500 error for company advanced search with sic\_codes param](http://forum.companieshouse.gov.uk/t/500-error-for-company-advanced-search-with-sic-codes-param/13031)
**Author:** [@LeeS](http://forum.companieshouse.gov.uk/u/LeeS)\ **Replies:** 0\ **Last updated:** [September 26, 2026, 7:32pm UTC](http://forum.companieshouse.gov.uk/t/500-error-for-company-advanced-search-with-sic-codes-param/13031 "2026-09-26T19:32:47Z")
I’m getting a 500 error when calling /advanced-search/companies with the sic\_codes query param. If I remove the query param it works. --- ## [401 with message invalid authorization](http://forum.companieshouse.gov.uk/t/401-with-message-invalid-authorization/13029)
**Author:** [@phill.collins](http://forum.companieshouse.gov.uk/u/phill.collins)\ **Replies:** 0\ **Last updated:** [September 25, 2026, 10:23am UTC](http://forum.companieshouse.gov.uk/t/401-with-message-invalid-authorization/13029 "2026-09-25T10:23:26Z")
Using a newly generated key for the sandbox, we are getting a 401 with message invalid authorization… is the sandbox API having any issues --- ## [API Integration](http://forum.companieshouse.gov.uk/t/api-integration/13027)
**Author:** [@dmasconsul](http://forum.companieshouse.gov.uk/u/dmasconsul)\ **Replies:** 1\ **Last updated:** [September 24, 2026, 4:46pm UTC](http://forum.companieshouse.gov.uk/t/api-integration/13027 "2026-09-24T16:46:10Z")
I am experiencing an authentication issue with a newly created Live REST API key. Application: DMAS Lead Generation Environment: Live Key type: REST API key Restricted IPs: None JavaScript domains: None I am trying… --- ## [Issues with creating test company in sandbox API](http://forum.companieshouse.gov.uk/t/issues-with-creating-test-company-in-sandbox-api/12444)
**Author:** [@rami.abusamra](http://forum.companieshouse.gov.uk/u/rami.abusamra)\ **Replies:** 17\ **Last updated:** [September 22, 2026, 8:11pm UTC](http://forum.companieshouse.gov.uk/t/issues-with-creating-test-company-in-sandbox-api/12444 "2026-09-22T20:11:15Z")
Hi, We are trying to create a test company in the test data sandbox environment but keep getting a time out. We are posting to https://test-data-sandbox.company-information.service.gov.uk/test-data/company. We have trie… --- ## [Company search - 403 fobidden error](http://forum.companieshouse.gov.uk/t/company-search-403-fobidden-error/13012)
**Author:** [@kvelinova](http://forum.companieshouse.gov.uk/u/kvelinova)\ **Replies:** 1\ **Last updated:** [September 18, 2026, 1:01pm UTC](http://forum.companieshouse.gov.uk/t/company-search-403-fobidden-error/13012 "2026-09-18T13:01:36Z")
Hi Team, We are encountering an 403 Forbidden error when attempting to query the standard Search Companies API endpoint. Could you please assist us in resolving this access issue? This is the exact error that we receiv… --- ## [Psc link key isn't consistent across company types, built something to catch it](http://forum.companieshouse.gov.uk/t/psc-link-key-isnt-consistent-across-company-types-built-something-to-catch-it/13003)
**Author:** [@bojby22](http://forum.companieshouse.gov.uk/u/bojby22)\ **Replies:** 1\ **Last updated:** [September 18, 2026, 10:13am UTC](http://forum.companieshouse.gov.uk/t/psc-link-key-isnt-consistent-across-company-types-built-something-to-catch-it/13003 "2026-09-18T10:13:03Z")
been poking around the company profile endpoint and noticed the psc-related link in the links object changes name depending on the company. sometimes it’s persons\_with\_significant\_control\_statement, sometimes persons\_wit… --- ## [Api.company-information.service.gov.uk SSL Certificate about to expire](http://forum.companieshouse.gov.uk/t/api-company-information-service-gov-uk-ssl-certificate-about-to-expire/13001)
**Author:** [@lalitkumar.solanki](http://forum.companieshouse.gov.uk/u/lalitkumar.solanki)\ **Replies:** 0\ **Last updated:** [September 14, 2026, 10:37am UTC](http://forum.companieshouse.gov.uk/t/api-company-information-service-gov-uk-ssl-certificate-about-to-expire/13001 "2026-09-14T10:37:06Z")
Hi, the SSL certificate for api.companyinformation gov uk expiring on the 22th Sept, which means it customers will be unable to access the company information on live It will be good if you could get this renewed in ad… --- ## [Company's Overview Page Missing from Google Search](http://forum.companieshouse.gov.uk/t/companys-overview-page-missing-from-google-search/12999)
**Author:** [@will22](http://forum.companieshouse.gov.uk/u/will22)\ **Replies:** 0\ **Last updated:** [September 14, 2026, 9:39am UTC](http://forum.companieshouse.gov.uk/t/companys-overview-page-missing-from-google-search/12999 "2026-09-14T09:39:18Z")
The official Companies House overview page for HAUTE MAISON LIMITED (company number 15490017) is live, accessible and fully up to date, but it has disappeared entirely from Google search results. No Companies House page… --- ## [New Live REST API keys return 400 Invalid Authorization header](http://forum.companieshouse.gov.uk/t/new-live-rest-api-keys-return-400-invalid-authorization-header/12969)
**Author:** [@johnemilad](http://forum.companieshouse.gov.uk/u/johnemilad)\ **Replies:** 2\ **Last updated:** [September 14, 2026, 9:38am UTC](http://forum.companieshouse.gov.uk/t/new-live-rest-api-keys-return-400-invalid-authorization-header/12969 "2026-09-14T09:38:38Z")
Two distinct Live REST API keys generated today for the same application are both rejected by the Companies House Public Data API. Application: MILADVector Application environment: Live Key type: REST API key Restric… --- ## [Bug with Officer Date of Birth](http://forum.companieshouse.gov.uk/t/bug-with-officer-date-of-birth/12964)
**Author:** [@maxlearmond](http://forum.companieshouse.gov.uk/u/maxlearmond)\ **Replies:** 0\ **Last updated:** [August 28, 2026, 8:24am UTC](http://forum.companieshouse.gov.uk/t/bug-with-officer-date-of-birth/12964 "2026-08-28T08:24:36Z")
This bug applies to both the website and the API. If an officer is a secretary then their DOB does not need to be on companies house however if they are both a secretary and a director then their DOB is blank when using… --- ## [Advanced search not showing new companies since 24 August](http://forum.companieshouse.gov.uk/t/advanced-search-not-showing-new-companies-since-24-august/12962)
**Author:** [@andrew1212](http://forum.companieshouse.gov.uk/u/andrew1212)\ **Replies:** 1\ **Last updated:** [August 27, 2026, 11:54am UTC](http://forum.companieshouse.gov.uk/t/advanced-search-not-showing-new-companies-since-24-august/12962 "2026-08-27T11:54:43Z")
Since around Monday 24th August the advanced search has stopped showing newly incorporated companies. It is happening on both the API and the advanced search tool on your website. If I search by incorporation date for th… --- ## [No filings for 25-08-2026 ??](http://forum.companieshouse.gov.uk/t/no-filings-for-25-08-2026/12960)
**Author:** [@christy](http://forum.companieshouse.gov.uk/u/christy)\ **Replies:** 3\ **Last updated:** [August 27, 2026, 11:54am UTC](http://forum.companieshouse.gov.uk/t/no-filings-for-25-08-2026/12960 "2026-08-27T11:54:02Z")
Is there a problem or is this genuine? also no filings for 26th - assuming there is some kind of issue --- ## [Missing filing events?](http://forum.companieshouse.gov.uk/t/missing-filing-events/12894)
**Author:** [@wcollins](http://forum.companieshouse.gov.uk/u/wcollins)\ **Replies:** 4\ **Last updated:** [August 27, 2026, 8:18am UTC](http://forum.companieshouse.gov.uk/t/missing-filing-events/12894 "2026-08-27T08:18:57Z")
We consume the Filing History streaming API and have noticed that a number of accounts (AA) filings which appear in the filing history (and via the REST API) never come through on the stream. We’re confident they aren’t… --- ## [Problems filing change of REA](http://forum.companieshouse.gov.uk/t/problems-filing-change-of-rea/12949)
**Author:** [@peter2](http://forum.companieshouse.gov.uk/u/peter2)\ **Replies:** 1\ **Last updated:** [August 20, 2026, 12:36pm UTC](http://forum.companieshouse.gov.uk/t/problems-filing-change-of-rea/12949 "2026-08-20T12:36:17Z")
Hi, Since 11:55am today (19/08/26) we are consistently unable to complete registered email address filings: closing the transaction returns HTTP 500 with an empty response body. The filing sequence we use, and what we … --- ## [Corporate PSC identification block missing registration\_number in API response](http://forum.companieshouse.gov.uk/t/corporate-psc-identification-block-missing-registration-number-in-api-response/12943)
**Author:** [@kim.baldwin](http://forum.companieshouse.gov.uk/u/kim.baldwin)\ **Replies:** 0\ **Last updated:** [August 17, 2026, 12:42pm UTC](http://forum.companieshouse.gov.uk/t/corporate-psc-identification-block-missing-registration-number-in-api-response/12943 "2026-08-17T12:42:24Z")
For the majority of our corporate PSC API calls, the identification object returns the full set of fields as expected: “identification”: { “legal\_form”: “”, “legal\_authority”: “”, “country\_registered”: “”, “place\_re… --- ## [Rest API Requests Issues](http://forum.companieshouse.gov.uk/t/rest-api-requests-issues/12902)
**Author:** [@paul\_green24](http://forum.companieshouse.gov.uk/u/paul_green24)\ **Replies:** 0\ **Last updated:** [July 29, 2026, 10:59pm UTC](http://forum.companieshouse.gov.uk/t/rest-api-requests-issues/12902 "2026-07-29T22:59:50Z")
Has anyone noticed that API requests feel like they are being throttled in the last few days? Not sure if this is a system issue or maintenanc issue. I built a macro in Outlook that connects to the companies house api a… --- ## [Where is the option "Create A New Key" ](http://forum.companieshouse.gov.uk/t/where-is-the-option-create-a-new-key/12895)
**Author:** [@joseph1](http://forum.companieshouse.gov.uk/u/joseph1)\ **Replies:** 0\ **Last updated:** [July 23, 2026, 11:37am UTC](http://forum.companieshouse.gov.uk/t/where-is-the-option-create-a-new-key/12895 "2026-07-23T11:37:49Z")
I am unable to create an API key in the Companies House Developer Hub. I have signed in through the Developer Hub, opened Manage applications, created a new Live application, and opened the individual application. Howev… --- ## [Streaming apis down?](http://forum.companieshouse.gov.uk/t/streaming-apis-down/12884)
**Author:** [@rajveer](http://forum.companieshouse.gov.uk/u/rajveer)\ **Replies:** 4\ **Last updated:** [July 16, 2026, 10:24am UTC](http://forum.companieshouse.gov.uk/t/streaming-apis-down/12884 "2026-07-16T10:24:48Z")
Morning - live streams are down. Just sending update in case nobody has noticed yet. Morning fellow developer, I have been receiving a mix of 500,502 and 401 errors and some requests in between.(between 15/07/2026 9:50… [Next page](http://forum.companieshouse.gov.uk/c/issues/5.md?page=1)