OpenCorporates API

Name: OpenCorporates API
Brand: OpenCorporates API
Availability: InStock

✓ Official Vendor SpecData EnrichmentCompany DataapiKey22 EndpointsREST

For Agents

Search the world's largest open company database to find companies, officers, filings, and statements across hundreds of jurisdictions, including gazette notices and registration changes.

Install Jentic One Beta

Connect the OpenCorporates API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the OpenCorporates API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with OpenCorporates API.

Search companies globally or within a specific jurisdiction with /companies/search

Retrieve a company record by jurisdiction code and company number with /companies/{jurisdiction_code}/{company_number}

List filings registered against a company including filing dates and types

GET STARTED

Start building with OpenCorporates API

Explore with Jentic

View OpenAPI Document

OpenCorporates is the world's largest open database of companies and corporate data, covering more than 200 million companies across hundreds of jurisdictions. The API exposes search and retrieval over companies, officers, filings, statements, and industry codes, plus a jurisdictions index and account introspection. Specialised statement-search endpoints expose subsequent registrations, alternate registrations, and gazette notices, which power compliance and corporate-relationship investigations. The dataset is sourced from official company registers worldwide and is licensed for transparency and journalism use cases as well as commercial research.

Use Cases

Patterns agents use OpenCorporates API for, with concrete tasks.

★ KYC and Onboarding Verification

Verify the existence and status of corporate counterparties during onboarding by calling /companies/search to locate the entity and /companies/{jurisdiction_code}/{company_number} for the canonical record. Pair with /officers/search to identify directors and beneficial owners against KYC lists. OpenCorporates covers more than 200 million entities worldwide, which is wider coverage than most national-only registers.

GET /companies/search?q=ACME+LIMITED&jurisdiction_code=gb and pull the canonical record for the top match via /companies/gb/{company_number}.

Investigative Journalism and Compliance

Trace corporate networks and surface restructurings, dissolutions, and gazette publications using /statements/subsequent_registrations/search, /statements/alternate_registrations/search, and /statements/gazette_notices/search. These endpoints turn unstructured statutory publications into queryable records, which is valuable for investigative journalism, AML, and sanctions investigations.

GET /statements/gazette_notices/search?q=insolvency&jurisdiction_code=gb&date_gte=2026-01-01 and return all UK gazette notices since the start of the year.

Sales and Account Enrichment

Enrich CRM accounts with canonical company numbers, registered addresses, and officer lists by querying /companies/search and /companies/{jurisdiction_code}/{company_number}. The API normalises corporate forms across jurisdictions, which is more reliable than scraping individual registers when accounts span multiple countries.

For each CRM account, call /companies/search?q={account_name}&jurisdiction_code={country_code} and write back the canonical company number and registered address.

AI Agent Corporate Research

Through Jentic, an AI agent can answer corporate-research questions across hundreds of jurisdictions with a single tool surface. The agent searches for the right OpenCorporates operation, loads its schema, and executes the request with the api_token injected from MAXsystem, removing the need to maintain bespoke per-jurisdiction scrapers.

Through Jentic, search for 'find a company by name', load GET /companies/search, and execute it with q='Apple' and jurisdiction_code='us_ca'.

Key Endpoints

22 endpoints — opencorporates is the world's largest open database of companies and corporate data, covering more than 200 million companies across hundreds of jurisdictions.

METHOD

PATH

DESCRIPTION

GET

/companies/search

Search companies by name and jurisdiction

GET

/companies/{jurisdiction_code}/{company_number}

Retrieve a specific company record

GET

/companies/{jurisdiction_code}/{company_number}/filings

List filings for a company

GET

/officers/search

Search officers across jurisdictions

GET

/officers/{id}

Retrieve an officer record

GET

/statements/gazette_notices/search

Search gazette notice statements

GET

/statements/subsequent_registrations/search

Search subsequent registration statements

GET

/filings/{id}

Retrieve a specific filing record

GET

/companies/search

Search companies by name and jurisdiction

GET

/companies/{jurisdiction_code}/{company_number}

Retrieve a specific company record

GET

/companies/{jurisdiction_code}/{company_number}/filings

List filings for a company

GET

/officers/search

Search officers across jurisdictions

GET

/officers/{id}

Retrieve an officer record

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

The OpenCorporates api_token is stored encrypted in the Jentic MAXsystem vault and injected as the api_token query parameter at request time. Agents receive scoped operation access only — the raw token never enters prompt context or logs.

Intent-based discovery

Agents search by intent (e.g., 'find a company by name in a jurisdiction' or 'search gazette notices for insolvency') and Jentic returns the matching company, officer, or statement operation with its parameter schema.

Time to first call

Direct OpenCorporates integration: half a day for HTTP client, query-token handling, and pagination across 22 endpoints. Through Jentic: under 30 minutes for the integration code.

FAQs

Specific to using OpenCorporates API through Jentic.

What authentication does the OpenCorporates API use?

The spec defines an API key scheme called apiToken where the token is passed as the api_token query parameter on every request. Through Jentic, the api_token is stored encrypted in the MAXsystem vault and injected into the URL at request time, so the raw token never enters the agent's prompt context or logs.

Can I search for a company by name through this API?

Yes. GET /companies/search accepts a q parameter and supports filters such as jurisdiction_code, current_status, company_type, and incorporation_date ranges. The response is a paginated list of canonical company records that can be drilled into via /companies/{jurisdiction_code}/{company_number}.

What are the rate limits for the OpenCorporates API?

OpenCorporates enforces tier-based monthly call limits rather than per-second rate limits — the active limits are reflected on the calling api_token. Use GET /account to introspect the current account's plan and remaining quota, and design integrations to cache canonical company records aggressively.

How do I look up a specific company through Jentic?

Search Jentic for 'retrieve a company by jurisdiction and registration number', load GET /companies/{jurisdiction_code}/{company_number}, and execute it with the path parameters (e.g., gb and 12345678). Jentic injects the api_token from MAXsystem and returns the parsed company record.

Is the OpenCorporates API free?

OpenCorporates offers free access for transparency-aligned uses (journalism, civil society, academic research) subject to attribution. Commercial use requires a paid plan with monthly call quotas — pricing is published on opencorporates.com and depends on call volume and entitlements such as bulk data.

Can I find merger or restructuring records?

Yes. The /statements/subsequent_registrations/search endpoint surfaces records where one company's registration is succeeded by another, and /statements/alternate_registrations/search exposes alternate-registration relationships. Combine with /statements/gazette_notices/search to pick up insolvency or dissolution publications around the same period.