# OpenAlex Help

> Unified help, documentation, API reference, and tutorials for OpenAlex,
> the open catalog of the global research system.

Every page on this site has a raw-markdown sibling: append `.md` to its path.

New here? Start with the [Quickstart](https://help.openalex.org/quickstart/): get real data out of
OpenAlex in five minutes ([markdown](https://help.openalex.org/quickstart.md)).

Field and vocabulary semantics (what each entity is, where its records come from,
what every attribute means, controlled-vocabulary definitions) are canonical under
`/data/` — e.g. the works field dictionary at `/data/works/` and work types
at `/data/work-types/`. The `/access/` pages cover access to OpenAlex in both directions —
read access (querying, ways to get the data, pricing) and write access (fixing errors);
the `/api/` pages cover endpoint mechanics (filtering,
sorting, grouping, query syntax).

## How-to

- [Analyzing your institution](https://help.openalex.org/how-to/analyzing-your-institution/): Count an institution's outputs on the OpenAlex website and break them down by type, subject, SDG, open access, citations, collaborators, and journals — plus APC spend and open-access trends. ([markdown](https://help.openalex.org/how-to/analyzing-your-institution.md))
- [API recipes](https://help.openalex.org/how-to/api-recipes/): Copy-paste URL patterns for the most common OpenAlex API questions — finding works, filtering, grouping, batch-fetching, sampling, and following citations. ([markdown](https://help.openalex.org/how-to/api-recipes.md))
- [Author profile privacy](https://help.openalex.org/how-to/author-profile-privacy/): What an author profile is, how to fix one, and how we handle requests to remove one — including privacy and personal-data requests. ([markdown](https://help.openalex.org/how-to/author-profile-privacy.md))
- [Citing OpenAlex](https://help.openalex.org/how-to/citing-openalex/): The citation to use when you use OpenAlex in your research. ([markdown](https://help.openalex.org/how-to/citing-openalex.md))
- [Counting](https://help.openalex.org/how-to/counting/): Recipes for counting questions: totaling citations to a result set, checking a journal's coverage, and why two counts of the same thing can disagree. ([markdown](https://help.openalex.org/how-to/counting.md))
- [Finding OpenAlex IDs](https://help.openalex.org/how-to/finding-openalex-ids/): Every entity in OpenAlex has an ID. Here's how to find the ID for a work, author, source, publisher, or anything else — on the website or via the API. ([markdown](https://help.openalex.org/how-to/finding-openalex-ids.md))
- [Fixing affiliations](https://help.openalex.org/how-to/fixing-affiliations/): What to do when works are matched to the wrong institution — or your institution's own record is wrong. ([markdown](https://help.openalex.org/how-to/fixing-affiliations.md))
- [Fixing authors](https://help.openalex.org/how-to/fixing-authors/): Claim your OpenAlex author profile and fix it yourself: add and remove works, merge duplicates, and correct your names. ([markdown](https://help.openalex.org/how-to/fixing-authors.md))
- [Fixing data errors](https://help.openalex.org/how-to/fixing-data-errors/): How to report anything wrong in OpenAlex — OA status, sources, dates, metadata — and write a report we can act on fast. ([markdown](https://help.openalex.org/how-to/fixing-data-errors.md))
- [Fixing Errors: Overview](https://help.openalex.org/how-to/fixing-errors/): Found an error in OpenAlex? Start here: what you can fix yourself right now, and how to report everything else. ([markdown](https://help.openalex.org/how-to/fixing-errors.md))
- [Getting indexed](https://help.openalex.org/how-to/getting-indexed/): How to get your journal's or repository's works into OpenAlex. ([markdown](https://help.openalex.org/how-to/getting-indexed.md))
- [Getting involved](https://help.openalex.org/how-to/getting-involved/): Viewing the OpenAlex roadmap, joining the community, and shaping OpenAlex's direction — town halls, mailing lists, the advisory board, and supporter roundtables. ([markdown](https://help.openalex.org/how-to/getting-involved.md))
- [Integrations](https://help.openalex.org/how-to/integrations/): Getting OpenAlex data into other tools: website exports, VOSviewer, link resolvers, and the Unpaywall browser extension. ([markdown](https://help.openalex.org/how-to/integrations.md))
- [Repositories](https://help.openalex.org/how-to/repositories/): How-tos for repository managers: getting harvested, troubleshooting coverage, and making your records match better. ([markdown](https://help.openalex.org/how-to/repositories.md))
- [Searching](https://help.openalex.org/how-to/searching/): Recipes for common search questions: most-cited works, top-100 lists, excluding retractions, query length, and finding issue metadata. ([markdown](https://help.openalex.org/how-to/searching.md))
- [Support](https://help.openalex.org/how-to/support/): All the ways to get help with OpenAlex — and what to expect when you file a ticket. ([markdown](https://help.openalex.org/how-to/support.md))
- [Supporter tools](https://help.openalex.org/how-to/supporter-tools/): Activating the tools that come with institutional plans: the Admin Dashboard, the Affiliation Editor, and Unsub. ([markdown](https://help.openalex.org/how-to/supporter-tools.md))
- [Unsub](https://help.openalex.org/how-to/unsub/): What Unsub is, where its documentation lives, and how to get access. ([markdown](https://help.openalex.org/how-to/unsub.md))
## Tutorials

- [Audit a Profile](https://help.openalex.org/tutorials/audit-a-profile/): Find works that should belong to an OpenAlex author profile but aren't currently attached, and works that shouldn't belong but are ([markdown](https://help.openalex.org/tutorials/audit-a-profile.md))
- [Download the Snapshot](https://help.openalex.org/tutorials/download-the-snapshot/): Get the OpenAlex snapshot files onto your local machine using the AWS CLI ([markdown](https://help.openalex.org/tutorials/download-the-snapshot.md))
- [Find Collaborators](https://help.openalex.org/tutorials/find-collaborators/): Discover institutions you should be working with based on shared research topics ([markdown](https://help.openalex.org/tutorials/find-collaborators.md))
- [Funder Portfolios](https://help.openalex.org/tutorials/funder-portfolios/): Map what a funding agency invests in by field, track shifts over time, and find top recipient institutions ([markdown](https://help.openalex.org/tutorials/funder-portfolios.md))
- [Journals You Cite](https://help.openalex.org/tutorials/journals-you-cite/): Map the journals your researchers reference most by walking their citation lists ([markdown](https://help.openalex.org/tutorials/journals-you-cite.md))
- [Map SDG Research](https://help.openalex.org/tutorials/map-sdg-research/): Compare how countries contribute to the UN Sustainable Development Goals and find who leads each one ([markdown](https://help.openalex.org/tutorials/map-sdg-research.md))
- [Systematic Reviews](https://help.openalex.org/tutorials/systematic-reviews/): Build a real systematic-review search strategy in OQL — term blocks, exact vs. stemmed matching, scope filters, and a reproducible query you can paste straight into your appendix. ([markdown](https://help.openalex.org/tutorials/systematic-reviews.md))
## Access

- [Agents](https://help.openalex.org/access/agents/): How to get the most out of AI agents — Claude, ChatGPT, Cursor, and friends — when working with OpenAlex. ([markdown](https://help.openalex.org/access/agents.md))
- [Buying & renewing](https://help.openalex.org/access/buying-and-renewing/): How to buy OpenAlex prepaid usage and annual plans, invoices and VAT, trials, renewals, and what happens when your budget runs out. ([markdown](https://help.openalex.org/access/buying-and-renewing.md))
- [CLI](https://help.openalex.org/access/cli/): Download filtered subsets of OpenAlex data from the command line ([markdown](https://help.openalex.org/access/cli.md))
- [Example costs](https://help.openalex.org/access/example-costs/): What OpenAlex API operations cost, what your free daily budget buys, and the price of some common activities. ([markdown](https://help.openalex.org/access/example-costs.md))
- [Overview](https://help.openalex.org/access/fixing-errors/): How to report errors in OpenAlex, fix them yourself, and get help — tickets, self-serve curation for authors and affiliations, and where support fits in. ([markdown](https://help.openalex.org/access/fixing-errors.md))
- [Affiliations](https://help.openalex.org/access/fixing-errors/affiliations/): Fix affiliation errors: the Affiliation Editor for wrong institution matches (self-serve for members), tickets for one-offs, and ROR for the institution record itself. ([markdown](https://help.openalex.org/access/fixing-errors/affiliations.md))
- [AI curation guide](https://help.openalex.org/access/fixing-errors/ai-curation-guide/): Required reading for AI agents curating affiliation matches: the judgment rules that keep bulk corrections from causing new damage. ([markdown](https://help.openalex.org/access/fixing-errors/ai-curation-guide.md))
- [Authors](https://help.openalex.org/access/fixing-errors/authors/): Fix your OpenAlex author profile yourself: claim it, add and remove works, correct your names and ORCID, merge duplicates — by hand or with an AI agent. ([markdown](https://help.openalex.org/access/fixing-errors/authors.md))
- [Works](https://help.openalex.org/access/fixing-errors/works/): How to report errors on works — wrong open-access status, broken fulltext links, bad metadata — and what makes a report we can act on. ([markdown](https://help.openalex.org/access/fixing-errors/works.md))
- [Fulltext](https://help.openalex.org/access/fulltext/): The OpenAlex content archive — full-text PDFs and Grobid TEI XML for millions of works, and the three ways to download them. ([markdown](https://help.openalex.org/access/fulltext.md))
- [Legacy plans](https://help.openalex.org/access/legacy-plans/): What older OpenAlex plans (Premium, Institutional) mean today: existing contracts are honored, and legacy subscribers get the new Member benefits at no extra cost. ([markdown](https://help.openalex.org/access/legacy-plans.md))
- [Member](https://help.openalex.org/access/member/): The Member plan ($5,000/year): a $20/day API budget, the admin dashboard, community representation, and — for academic and government institutions — the affiliation editor and Unsub access. ([markdown](https://help.openalex.org/access/member.md))
- [Member+](https://help.openalex.org/access/member-plus/): The Member+ plan ($10,000/year): everything in Member, plus a $100/day API budget, basic support, and daily sync of the full database. ([markdown](https://help.openalex.org/access/member-plus.md))
- [Overview](https://help.openalex.org/access/oql/): The OpenAlex Query Language — what OQL is, how to write it, and every construct with a copyable example. ([markdown](https://help.openalex.org/access/oql.md))
- [Specification](https://help.openalex.org/access/oql-spec/): The formal specification of the OpenAlex Query Language (v2), including the formal grammar. ([markdown](https://help.openalex.org/access/oql-spec.md))
- [OQO](https://help.openalex.org/access/oqo-schema/): OQO (OpenAlex Query Objects) — the machine-readable JSON twin of OQL, built for agents and tools, with its JSON Schema. ([markdown](https://help.openalex.org/access/oqo-schema.md))
- [Overview](https://help.openalex.org/access/overview/): Every way to get OpenAlex data — website, API, CLI, agents, snapshot, sync, fulltext, Unpaywall — and how to pick the right one for your technical skill, scale, and budget. ([markdown](https://help.openalex.org/access/overview.md))
- [Partner](https://help.openalex.org/access/partner/): The Partner plan (from $20,000/year): everything in Member+, plus a $200+/day API budget, full support, and — for academic and government institutions — power-user accounts and annual consulting hours. ([markdown](https://help.openalex.org/access/partner.md))
- [Overview](https://help.openalex.org/access/pricing/): How OpenAlex pricing works: $1 of free API usage every day, pay-as-you-go prepaid usage, and annual plans (Member, Member+, Partner) — plus the PDF sync add-on and the free-data, paid-services sustainability model. ([markdown](https://help.openalex.org/access/pricing.md))
- [Overview](https://help.openalex.org/access/querying/): The several ways to ask OpenAlex a question — web interface, REST URLs, OQL, CLI, and agents — and how they all transpile to the same query object under the hood. ([markdown](https://help.openalex.org/access/querying.md))
- [Snapshot](https://help.openalex.org/access/snapshot/): The complete OpenAlex database as downloadable files — formats, S3 bucket layout, manifests, size, how it differs from the API, and how to access it (free public bucket + paid daily snapshot). ([markdown](https://help.openalex.org/access/snapshot.md))
- [Sync](https://help.openalex.org/access/sync/): Snapshot release cadence per plan, how updated_date partitions work, the four ways to keep a copy in sync with OpenAlex, and how deletions and merged entities behave — including the works deletion log deleted_ids.csv. ([markdown](https://help.openalex.org/access/sync.md))
- [Unpaywall](https://help.openalex.org/access/unpaywall/): What Unpaywall is — a legacy-compatible API surface over the OpenAlex database — its DOI coverage, data format, and how it relates to OpenAlex products. ([markdown](https://help.openalex.org/access/unpaywall.md))
- [URL](https://help.openalex.org/access/url/): Query OpenAlex over raw REST URLs — the filter, search, sort, and group_by parameters on api.openalex.org. ([markdown](https://help.openalex.org/access/url.md))
- [Advanced](https://help.openalex.org/access/website-advanced/): The visual query builder at openalex.org — build complex queries without writing code. ([markdown](https://help.openalex.org/access/website-advanced.md))
- [Basic](https://help.openalex.org/access/website-basic/): Point-and-click search and filters at openalex.org — the no-code way to query OpenAlex. ([markdown](https://help.openalex.org/access/website-basic.md))
## Data

- [Overview](https://help.openalex.org/data/aboutness/): The subject signals OpenAlex offers — topics, keywords, SDGs, concepts, and text search — and how to choose among them by granularity, familiarity, and fit to your research question. ([markdown](https://help.openalex.org/data/aboutness.md))
- [Overview](https://help.openalex.org/data/authors/): What an author is, why a profile is built from its works, and what every attribute on an author object means. ([markdown](https://help.openalex.org/data/authors.md))
- [Disambiguation](https://help.openalex.org/data/authors/disambiguation/): How OpenAlex turns the author names printed on works into stable author profiles: the signals the model weighs, the 2023 upgrade, the special NULL and deleted-author IDs, and the two ways it fails. ([markdown](https://help.openalex.org/data/authors/disambiguation.md))
- [ORCID](https://help.openalex.org/data/authors/orcid/): How OpenAlex uses ORCID iDs today: where they come from, what they do (and don't do) in author disambiguation, why a profile can be missing one, and how to set or correct yours. ([markdown](https://help.openalex.org/data/authors/orcid.md))
- [Authorships](https://help.openalex.org/data/authorships/): The join between a work and its authors — the raw name each author printed, their position, whether they're corresponding, and the institutions they listed — and what every attribute on an authorship object means. ([markdown](https://help.openalex.org/data/authorships.md))
- [Awards](https://help.openalex.org/data/awards/): What an award (grant) is, where its data comes from, how OpenAlex matches grants to funders and works, and what every attribute on an award object means. ([markdown](https://help.openalex.org/data/awards.md))
- [Collections](https://help.openalex.org/data/collections/): What a collection is, what it can hold, why collections are private to their owner, and what every attribute on a collection object means. ([markdown](https://help.openalex.org/data/collections.md))
- [Common attributes](https://help.openalex.org/data/common-attributes/): The attributes that appear on nearly every OpenAlex entity — id, ids, display_name, counts_by_year, summary_stats, and the rest — documented once. ([markdown](https://help.openalex.org/data/common-attributes.md))
- [Overview](https://help.openalex.org/data/component/): Parts of a work — authorships, locations, raw affiliation strings — that OpenAlex models richly but doesn't give their own OpenAlex IDs. ([markdown](https://help.openalex.org/data/component.md))
- [Concepts (deprecated)](https://help.openalex.org/data/concepts/): What concepts were, why they're deprecated in favor of topics, and what every attribute on a concept object means. ([markdown](https://help.openalex.org/data/concepts.md))
- [Continents](https://help.openalex.org/data/continents/): The seven continents in OpenAlex, the fields on a continent object, and how to filter and group works, authors, and institutions by continent. ([markdown](https://help.openalex.org/data/continents.md))
- [Countries](https://help.openalex.org/data/countries/): What a country is in OpenAlex, the ISO standard behind the list, the fields on a country object, and how to filter works, authors, and institutions by country. ([markdown](https://help.openalex.org/data/countries.md))
- [Curations](https://help.openalex.org/data/curations/): What a curation is, who can file one, the review states it moves through, and how an accepted curation flows into the entity it corrects. ([markdown](https://help.openalex.org/data/curations.md))
- [Domains](https://help.openalex.org/data/domains/): What a domain is, where it sits at the top of the OpenAlex classification hierarchy, and what every attribute on a domain object means. ([markdown](https://help.openalex.org/data/domains.md))
- [Fields](https://help.openalex.org/data/fields/): What a field is, where it sits in the OpenAlex classification hierarchy, and what every attribute on a field object means. ([markdown](https://help.openalex.org/data/fields.md))
- [Funders](https://help.openalex.org/data/funders/): What a funder is, how OpenAlex grounds funders in ROR and the Crossref funder registry, and what every attribute on a funder object means. ([markdown](https://help.openalex.org/data/funders.md))
- [How it's built](https://help.openalex.org/data/how-its-built/): How the OpenAlex dataset is built: gathering records from thousands of sources and organizing them into one connected knowledge graph. A map that points into the entity pages where each step is documented in full. ([markdown](https://help.openalex.org/data/how-its-built.md))
- [Indexes](https://help.openalex.org/data/indexes/): The external bibliographic indexes a work or source can appear in, the fields on an index object, and how to filter works by index. ([markdown](https://help.openalex.org/data/indexes.md))
- [Institution types](https://help.openalex.org/data/institution-types/): The controlled vocabulary of institution types — education, healthcare, company, government, and more — what each value means, and how to filter works by the type of affiliated institution. ([markdown](https://help.openalex.org/data/institution-types.md))
- [Institutions](https://help.openalex.org/data/institutions/): What an institution is, how OpenAlex grounds them in ROR and matches raw affiliation strings to them, and what every attribute on an institution object means. ([markdown](https://help.openalex.org/data/institutions.md))
- [Keywords](https://help.openalex.org/data/keywords/): What a keyword is, how OpenAlex derives keywords from a work's topics, and what every attribute on a keyword object means. ([markdown](https://help.openalex.org/data/keywords.md))
- [Languages](https://help.openalex.org/data/languages/): The languages a work's metadata can be in, the ISO 639-1 standard behind the list, the fields on a language object, and how to filter works by language. ([markdown](https://help.openalex.org/data/languages.md))
- [Licenses](https://help.openalex.org/data/licenses/): The licenses an open-access work location can carry, the fields on a license object, and how to filter works by license. ([markdown](https://help.openalex.org/data/licenses.md))
- [Locations](https://help.openalex.org/data/locations/): Each place a version of a work is available — the publisher's site, a repository, a preprint server — with its version, license, and open-access status, and what every attribute on a location object means. ([markdown](https://help.openalex.org/data/locations.md))
- [Overview](https://help.openalex.org/data/native/): Entities where OpenAlex mints its own IDs, encoding our own judgment calls about real-world boundary disputes. ([markdown](https://help.openalex.org/data/native.md))
- [Overview](https://help.openalex.org/data/): The people, papers, places, and concepts OpenAlex catalogs — how their IDs work, how much to trust them, and how the objects are shaped. ([markdown](https://help.openalex.org/data.md))
- [Publishers](https://help.openalex.org/data/publishers/): What a publisher is, how OpenAlex builds the publisher hierarchy from ROR and Wikidata, how it connects to sources, and what every attribute on a publisher object means. ([markdown](https://help.openalex.org/data/publishers.md))
- [Raw affiliation strings](https://help.openalex.org/data/raw-affiliation-strings/): The exact affiliation text an author printed on a work, before OpenAlex matches it to an institution — the raw input to institution disambiguation. ([markdown](https://help.openalex.org/data/raw-affiliation-strings.md))
- [SDGs](https://help.openalex.org/data/sdgs/): The UN's 17 SDGs as OpenAlex entities, how works are tagged to them by an open-source machine-learning classifier, and what every attribute on an SDG object means. ([markdown](https://help.openalex.org/data/sdgs.md))
- [Source types](https://help.openalex.org/data/source-types/): The controlled vocabulary of source types — journal, repository, conference, book series, and more — what each value means, and how to filter works by the type of venue that hosts them. ([markdown](https://help.openalex.org/data/source-types.md))
- [Overview](https://help.openalex.org/data/sources/): What a source is, where sources come from, and how OpenAlex builds them and judges journal quality and open access. ([markdown](https://help.openalex.org/data/sources.md))
- [Attributes](https://help.openalex.org/data/sources/attributes/): The canonical dictionary of every attribute on a source object — what each one means, where it comes from, and its quirks. ([markdown](https://help.openalex.org/data/sources/attributes.md))
- [Repositories](https://help.openalex.org/data/sources/repositories/): How repository content gets into OpenAlex — OAI-PMH harvesting, matching records to works by DOI or title, locating full text, and why a repository's work count can look smaller than expected. ([markdown](https://help.openalex.org/data/sources/repositories.md))
- [Subfields](https://help.openalex.org/data/subfields/): What a subfield is, where it sits in the OpenAlex classification hierarchy, and what every attribute on a subfield object means. ([markdown](https://help.openalex.org/data/subfields.md))
- [Topics](https://help.openalex.org/data/topics/): What a topic is, how OpenAlex assigns topics to works and rolls them up into a four-level hierarchy, and what every attribute on a topic object means. ([markdown](https://help.openalex.org/data/topics.md))
- [Overview](https://help.openalex.org/data/user-created/): Things OpenAlex users mint themselves — collections and curations — rather than things OpenAlex mints. ([markdown](https://help.openalex.org/data/user-created.md))
- [Overview](https://help.openalex.org/data/vocabulary/): Consistent, controlled handles on things that already exist crisply in the real world — work types, countries, licenses, and more. ([markdown](https://help.openalex.org/data/vocabulary.md))
- [Work types](https://help.openalex.org/data/work-types/): The controlled vocabulary of work types — article, preprint, dataset, book, and the rest — what each value means, and how to filter works by type. ([markdown](https://help.openalex.org/data/work-types.md))
- [Overview](https://help.openalex.org/data/works/): What a work is, why works are the central entity in OpenAlex, where they come from, and how records become works. ([markdown](https://help.openalex.org/data/works.md))
- [Attributes](https://help.openalex.org/data/works/attributes/): The canonical dictionary of every attribute on a work object — what each one means, where it comes from, and its quirks. ([markdown](https://help.openalex.org/data/works/attributes.md))
- [Citations](https://help.openalex.org/data/works/citations/): How OpenAlex builds citations and references — reference extraction and matching, why counts can differ from the PDF, and the Field-Weighted Citation Impact (FWCI) metric. ([markdown](https://help.openalex.org/data/works/citations.md))
- [Expansion corpus](https://help.openalex.org/data/works/corpus/): OpenAlex works come in two corpora — the curated core and a larger expansion (formerly 'XPAC'). What's in each, why the expansion is opt-in, and how to select core / expansion / all in the REST API and OQL. ([markdown](https://help.openalex.org/data/works/corpus.md))
- [Open access](https://help.openalex.org/data/works/open-access/): How OpenAlex determines whether a work is Open Access — the status taxonomy (diamond, gold, green, hybrid, bronze), OA locations, best-location selection, and licenses. ([markdown](https://help.openalex.org/data/works/open-access.md))
## API

- [Authentication](https://help.openalex.org/api/authentication/): API keys, sending your key, rate limits, and keeping tabs on your usage ([markdown](https://help.openalex.org/api/authentication.md))
- [Author Curation](https://help.openalex.org/api/author-curation/): Curate your profile to claim works, remove works, or change your name ([markdown](https://help.openalex.org/api/author-curation.md))
- [Autocomplete](https://help.openalex.org/api/autocomplete/): Fast typeahead search for building search interfaces ([markdown](https://help.openalex.org/api/autocomplete.md))
- [Collections](https://help.openalex.org/api/collections/): Save named lists of OpenAlex entities and filter searches against them ([markdown](https://help.openalex.org/api/collections.md))
- [Deprecations](https://help.openalex.org/api/deprecations/): Deprecated features and migration guides ([markdown](https://help.openalex.org/api/deprecations.md))
- [Overview](https://help.openalex.org/api/endpoints/): Every OpenAlex API endpoint at a glance — the entity list/single endpoints and the special-purpose ones — each linking to the entity page that documents its fields. ([markdown](https://help.openalex.org/api/endpoints.md))
- [Error Handling](https://help.openalex.org/api/errors/): API error codes and retry strategies ([markdown](https://help.openalex.org/api/errors.md))
- [Filter](https://help.openalex.org/api/filtering/): Narrow down results to entities that match specific conditions ([markdown](https://help.openalex.org/api/filtering.md))
- [Get Singleton](https://help.openalex.org/api/get-single-entities/): Retrieve a single entity by ID ([markdown](https://help.openalex.org/api/get-single-entities.md))
- [Group](https://help.openalex.org/api/grouping/): Aggregate entities into faceted counts using group_by ([markdown](https://help.openalex.org/api/grouping.md))
- [Overview](https://help.openalex.org/api/): A short, conversational tour of the OpenAlex REST API — how it's shaped, how to start, and where to go next. ([markdown](https://help.openalex.org/api.md))
- [LLM Quick Reference](https://help.openalex.org/api/llm-quick-reference/): OpenAlex API reference optimized for AI agents ([markdown](https://help.openalex.org/api/llm-quick-reference.md))
- [OQL API](https://help.openalex.org/api/oql/): Executing and translating OQL over HTTP — endpoints, query formats, and reading results. ([markdown](https://help.openalex.org/api/oql.md))
- [Page through Results](https://help.openalex.org/api/paging/): Navigate through large result sets ([markdown](https://help.openalex.org/api/paging.md))
- [Search](https://help.openalex.org/api/searching/): Find entities using full-text search across titles, abstracts, and more ([markdown](https://help.openalex.org/api/searching.md))
- [Select Fields](https://help.openalex.org/api/selecting-fields/): Limit which fields are returned in API responses ([markdown](https://help.openalex.org/api/selecting-fields.md))
- [Semantic Search](https://help.openalex.org/api/semantic-search/): Find works by meaning using AI embeddings. Best for paragraph-length queries. ([markdown](https://help.openalex.org/api/semantic-search.md))
- [Sort](https://help.openalex.org/api/sorting/): Order results by a field ([markdown](https://help.openalex.org/api/sorting.md))
- [Tag Aboutness](https://help.openalex.org/api/tag-aboutness/): Tag your own text with OpenAlex keywords and concepts ([markdown](https://help.openalex.org/api/tag-aboutness.md))