Materials Project

The Materials Project API provides direct access to the Materials Project database, a large-scale computational materials science database with data on tens of thousands of materials. The API is offered free of charge and supports machine learning, automated analysis, and bulk data downloads.
Materials Project publishes 29 APIs on the APIs.io network, including Defect Tasks API, DOIs API, JCESR Electrolyte Genome API, and 26 more. Tagged areas include Chemistry, Materials Science, Physics, Research, and Scientific Computing.
Materials Project’s developer surface includes authentication, developer portal, documentation, signup flow, and 4 more developer resources.
🌐 Visit website 📡 Source on GitHub
37.0/100 thin ▬ flat Agent 38/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
29 APIs
ChemistryMaterials SciencePhysicsResearchScientific Computing
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Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 37.0/100 · thin
Contract Quality 11.3 / 25
Developer Ergonomics 5.7 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 38/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/materials-project: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →
APIs 29

Individual APIs this provider publishes, each with its own machine-readable definition.
Rate Limits 1

Documented rate limits and quota policies.
Materials Project Rate Limits

5 limits
RATE LIMITS
FinOps 1

Cost, billing, and metering signals for API financial operations.
Get Started 2

Portal, sign-up, and the first successful call
Portal
Portal
Signup
Signup
Documentation 1

Reference material describing how the API behaves
Documentation
Documentation
Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs
AgenticAccess
AgenticAccess
LlmsText
LlmsText
Build 1

SDKs, sample code, and the tooling you integrate with
GitHubOrganization
GitHubOrganization
Access & Security 2

Authentication, authorization, and security posture
DomainSecurity
DomainSecurity
Authentication
Authentication
Source (apis.yml)

aid: materials-project
name: Materials Project
description: The Materials Project API provides direct access to the Materials Project database, a large-scale computational
  materials science database with data on tens of thousands of materials. The API is offered free of charge and supports machine
  learning, automated analysis, and bulk data downloads.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/materials-project.png
url: https://raw.githubusercontent.com/api-evangelist/materials-project/refs/heads/main/apis.yml
tags:
- Chemistry
- Materials Science
- Physics
- Research
- Scientific Computing
created: '2025-02-06'
modified: '2026-05-19'
specificationVersion: '0.19'
apis:
- aid: materials-project:materials-project-defect-tasks-api
  name: Materials Project Defect Tasks API
  description: The Defect Tasks API from Materials Project — 1 operation(s) for defect tasks.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Defect Tasks
  properties:
  - type: OpenAPI
    url: openapi/materials-project-defect-tasks-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-dois-api
  name: Materials Project DOIs API
  description: Route providing DOI and bibtex reference information for a material.             Note that this data may not
    be available for all materials in the Materials             Project database. See the `DOIDoc` schema for a full list
    of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - DOIs
  properties:
  - type: OpenAPI
    url: openapi/materials-project-dois-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-jcesr-electrolyte-genome-api
  name: Materials Project JCESR Electrolyte Genome API
  description: Route providing computed data for a legacy molecule such as charge,             electron affinity, and ionization
    energy. The unique identifier for a molecule             is its `task_id` (e.g. `mol-45807`). See the `MoleculesDoc` schema
    for a full list of             fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - JCESR Electrolyte Genome
  properties:
  - type: OpenAPI
    url: openapi/materials-project-jcesr-electrolyte-genome-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-absorption-api
  name: Materials Project Materials Absorption API
  description: The Materials Absorption API from Materials Project — 1 operation(s) for materials absorption.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Absorption
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-absorption-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-alloys-api
  name: Materials Project Materials Alloys API
  description: Route for retrevial of information about which hypothetical alloy(s) a given material might belong to, following
    the methodolgy discussed by [Woods-Robinson, Horton and Persson](https://arxiv.org/pdf/2206.10715).
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Alloys
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-alloys-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-api
  name: Materials Project Materials API
  description: Route for "core" information associated with a given material in the Materials Project             database.
    The unique identifier for a material is its `material_id` (e.g. `mp-149`). Core data in             this context refers
    to the crystal structure, information associated with it such as the density             and chemical formula, and the
    associated calculations which are identified with unique `task_id`             values. It does not contain any materials
    properties such as the formation energy or band gap, please             consult other property-specific endpoints for
    this information. See the `MaterialsDoc` schema for             a full list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-bonds-api
  name: Materials Project Materials Bonds API
  description: Route for retrevial of bonding information for a given material.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Bonds
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-bonds-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-chemical-environment-api
  name: Materials Project Materials Chemical Environment API
  description: The Materials Chemical Environment API from Materials Project — 1 operation(s) for materials chemical environment.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Chemical Environment
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-chemical-environment-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-dielectric-api
  name: Materials Project Materials Dielectric API
  description: Route providing computed dielectric data for a material following the             methodology discussed by
    [Petousis *et al.*](https://doi.org/10.1038/sdata.2016.134)             Note that dielectric data has not been calculated
    for all materials in the Materials             Project database. See the `DielectricDoc` schema for a full list of fields
    returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Dielectric
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-dielectric-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-elasticity-api
  name: Materials Project Materials Elasticity API
  description: Route providing computed elasticity data for a material following the             methodology discussed by
    [de Jong *et al.*](https://doi.org/10.1038/sdata.2015.9)             Note that elasticity data has not been calculated
    for all materials in the Materials             Project database. See the `ElasticityDoc` schema for a full list of fields
    returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Elasticity
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-elasticity-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-electrodes-api
  name: Materials Project Materials Electrodes API
  description: Route providing computed electrode data for a material following the             methodology discussed by [Shen
    *et al.*](https://doi.org/10.1038/s41524-020-00422-3)             Note that electrode data has not been calculated for
    all materials in the Materials             Project database. See the `InsertionElectrodeDoc` and `ConversionElectrodeDoc`
    schema             for a full list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Electrodes
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-electrodes-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-electronic-structure-api
  name: Materials Project Materials Electronic Structure API
  description: Routes providing computed electronic structure related data for a material such as             band gap and
    fermi level. Python objects for line-mode band structures, density of states, and             fermi surfaces are also
    available. This data was obtained following the methodology discussed by             [Munro *et al.*](https://doi.org/10.1038/s41524-020-00383-7)
    and [Ganose *et al.*](https://doi.org/10.21105/joss.03089)             Note that full band structure, density of states,
    and fermi surface data has not been calculated for             all materials in the Materials Project database. See the
    `ElectronicStructureDoc` and `FermiDoc` schema             for a full list of fields returned by the associated routes.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Electronic Structure
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-electronic-structure-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-eos-api
  name: Materials Project Materials EOS API
  description: Route providing computed equations of state data for a material following the             methodology discussed
    by [Latimer *et al.*](https://doi.org/10.1038/s41524-018-0091-x)             Note that equations of state data has not
    been calculated for all materials in the Materials             Project database. See the `EOSDoc` schema for a full list
    of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials EOS
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-eos-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-grain-boundaries-api
  name: Materials Project Materials Grain Boundaries API
  description: Route providing computed grain boundary data for a material following the             methodology discussed
    by [Hui *et al.*](https://doi.org/10.1016/j.actamat.2019.12.030)             Note that grain boundary data has not been
    calculated for all materials in the Materials             Project database. See the `GrainBoundaryDoc` schema for a full
    list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Grain Boundaries
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-grain-boundaries-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-magnetism-api
  name: Materials Project Materials Magnetism API
  description: Route providing computed magnetic ordering related data for a material following the             methodology
    discussed by [Horton *et al.*](https://doi.org/10.1038/s41524-019-0199-7)             Note that magnetic data has not
    been calculated for all materials in the Materials             Project database. See the `MagnetismDoc` schema for a full
    list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Magnetism
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-magnetism-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-oxidation-states-api
  name: Materials Project Materials Oxidation States API
  description: Route providing computed oxidation state data for a material following the             methodology employed
    by the [BVAnalyzer](https://pymatgen.org/pymatgen.analysis.bond_valence.html)             in Pymatgen. Note that oxidation
    state data has not been calculated for all materials in the Materials             Project database. See the `OxidationStateDoc`
    schema for a full list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Oxidation States
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-oxidation-states-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-phonon-api
  name: Materials Project Materials Phonon API
  description: '**Under construction** Route providing computed phonon data for a material following the             methodology
    discussed by [Petretto *et al.*](https://doi.org/10.1038/sdata.2018.65)             Note that phonon data has not been
    calculated for all materials in the Materials             Project database. See the `PhononBSDOSDoc` schema for a full
    list of fields returned by this route.'
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Phonon
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-phonon-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-piezoelectric-api
  name: Materials Project Materials Piezoelectric API
  description: Route providing computed piezoelectric data for a material following the             methodology discussed
    by [de Jong *et al.*](https://doi.org/10.1038/sdata.2015.53)             Note that piezoelectric data has not been calculated
    for all materials in the Materials             Project database. See the `PiezoDoc` schema for a full list of fields returned
    by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Piezoelectric
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-piezoelectric-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-provenance-api
  name: Materials Project Materials Provenance API
  description: Route providing provenance data for a material such as whether it is theoretical,             its associated
    ICSD entries, and relevant references in literature. Note that provenance data             may not be available for all
    materials in the Materials Project database. See the `ProvenanceDoc`             schema for a full list of fields returned
    by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Provenance
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-provenance-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-robocrystallographer-api
  name: Materials Project Materials Robocrystallographer API
  description: Route providing a computed text description for a material following the             methodology discussed
    by [Ganose *et al.*](https://doi.org/10.1557/mrc.2019.94)             Note that descriptions may not been calculated for
    all materials in the Materials             Project database. See the `RobocrysDoc` schema for a full list of fields returned
    by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Robocrystallographer
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-robocrystallographer-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-similarity-api
  name: Materials Project Materials Similarity API
  description: Route providing a computed similarity metric between materials following the             methodology discussed
    by Zimmerman *et al.* in [10.3389/fmats.2017.00034](https://doi.org/10.3389/fmats.2017.00034)             and [10.1039/C9RA07755C](https://doi.org/10.1039/C9RA07755C).             Note
    that similarity data has not been calculated for all materials in the Materials             Project database. See the
    `SimilarityDoc` schema for a full list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Similarity
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-similarity-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-substrates-api
  name: Materials Project Materials Substrates API
  description: Route providing computed suggested substrate data for a material following the             methodology discussed
    by [Ding *et al.*](https://doi.org/10.1021/acsami.6b01630)             Note that substrate data has not been calculated
    for all materials in the Materials             Project database. See the `SubstratesDoc` schema for a full list of fields
    returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Substrates
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-substrates-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-summary-api
  name: Materials Project Materials Summary API
  description: Route providing a large amount of amalgamated data for a material. This is constructed by             combining
    subsets of data from many of the other API endpoints. The summary endpoint is very useful for             performing queries
    for materials over a large property space. Note that every unique material within             the Materials Project should
    have a set of summary data. See the `SummaryDoc` schema for a full list of             fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Summary
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-summary-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-surface-properties-api
  name: Materials Project Materials Surface Properties API
  description: Route providing computed surface property data for a material following the             methodology discussed
    by [Tran *et al.*](https://doi.org/10.1038/sdata.2016.80)             Note that surface data has not been calculated for
    all materials in the Materials             Project database. See the `SurfacePropDoc` schema for a full list of fields
    returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Surface Properties
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-surface-properties-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-synthesis-api
  name: Materials Project Materials Synthesis API
  description: Route providing a synthesis recipes for materials extracted from literature             following the methodology
    discussed by [Kononova *et al.*](https://doi.org/10.1038/s41597-019-0224-1)             Note that synthesis recipes may
    not be available for all materials in the Materials             Project database. See the `SynthesisSearchResultModel`
    schema for a full list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Synthesis
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-synthesis-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-tasks-api
  name: Materials Project Materials Tasks API
  description: Route for "core" information associated with a given calculation in the Materials Project             database.
    Multiple calculations can ultimately be associated with a unique material, and are the source             of its reported
    properties. The unique identifier for a calculation is its `task_id`. Note             that the `material_id` chosen for
    a given material is sourced from one of the `task_id` values             associated with it. Core data in this context
    refers to calculation quantities such as parsed input             and output data (e.g. VASP input flags, atomic forces,
    structures) and runtime statistics. See the             `TaskDoc` schema for a full list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Tasks
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-tasks-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-thermo-api
  name: Materials Project Materials Thermo API
  description: Route providing computed thermodynamic data for a material such as             formation energy and energy
    above hull. Corrected energy values are also available that employ             the schemes discussed by             [Jain
    *et al.*](https://journals.aps.org/prb/abstract/10.1103/PhysRevB.84.045115)             and [Wang *et al.*](https://chemrxiv.org/engage/chemrxiv/article-details/60c758d9469df42a4ef45757)            See
    the `ThermoDoc` schema for a full list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials Thermo
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-thermo-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-materials-xas-api
  name: Materials Project Materials XAS API
  description: Route providing computed x-ray absorption spectroscopy data for a material following the             methodology
    discussed by [Mathew *et al.*](https://doi.org/10.1038/sdata.2018.151)             and [Chen *et al.*](https://doi.org/10.1038/s41597-021-00936-5)             Note
    that x-ray absorption spectroscopy data has not been calculated for all materials in the Materials             Project
    database. See the `XASDoc` schema for a full list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Materials XAS
  properties:
  - type: OpenAPI
    url: openapi/materials-project-materials-xas-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
- aid: materials-project:materials-project-molecules-summary-api
  name: Materials Project Molecules Summary API
  description: Route for a summary of all data calculated on 'core' molecules in the Materials Project             molecules
    database. See the `MoleculeSummaryDoc` schema for a full list of fields returned by this route.
  humanURL: https://next-gen.materialsproject.org/api
  baseURL: https://api.materialsproject.org
  tags:
  - Molecules Summary
  properties:
  - type: OpenAPI
    url: openapi/materials-project-molecules-summary-api-openapi.yml
  - type: Documentation
    url: https://next-gen.materialsproject.org/api
  - type: GettingStarted
    url: https://docs.materialsproject.org/downloading-data/using-the-api
common:
- type: AgenticAccess
  url: agentic-access/materials-project-agentic-access.yml
- type: DomainSecurity
  url: security/materials-project-domain-security.yml
- type: Authentication
  url: authentication/materials-project-authentication.yml
- type: Portal
  url: https://materialsproject.org/
- type: Documentation
  url: https://docs.materialsproject.org/
- type: GitHubOrganization
  url: https://github.com/materialsproject
- type: Signup
  url: https://materialsproject.org/login
- type: LlmsText
  url: https://docs.materialsproject.org/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com