LeoLabs Platform API

The LeoLabs Platform API (v1) provides programmatic access to the LeoLabs commercial low Earth orbit catalog: tracked space objects, radar measurements, orbital state vectors, TLEs, ephemeris propagation up to plus or minus seven days, planned radar passes, and priority tasking of the LeoLabs radar network. Access is authenticated with a LeoLabs access key and secret key pair issued from the LeoLabs Platform.

OpenAPI Specification

leo-labs-platform-openapi.yml Raw ↑
openapi: 3.0.3
info:
  title: LeoLabs Platform API
  version: v1
  description: |
    The LeoLabs Platform API provides programmatic access to LeoLabs' commercial low Earth orbit (LEO)
    catalog: tracked space objects, radar measurements, orbital state vectors, TLEs, ephemeris propagation,
    planned passes, and radar instrument tasking.

    PROVENANCE: this description was DERIVED from LeoLabs' own published Python client
    (PyPI package `leolabs` 0.1.22, authored by "LeoLabs, Inc.", modules `leolabs/cli/commands.py`
    and `leolabs/cli/utils.py`) plus the request/response examples in that package's README.
    It is NOT an official LeoLabs OpenAPI document — LeoLabs' reference documentation
    (https://docs.leolabs.space/) is behind a customer login, so the authoritative contract could not be
    retrieved. Paths, methods, parameter names, the authorization header format and the response field
    names below all come verbatim from that first-party source. Nothing was invented; where the source
    did not reveal a type or a field it is simply absent here. The client was last published 2018-11-06,
    so this reflects the v1 surface as of that release and may be incomplete relative to today's API.
  contact:
    name: LeoLabs Support
    email: support@leolabs.space
    url: https://www.leolabs.space/
  x-provenance:
    method: derived
    generated: '2026-07-19'
    source: https://pypi.org/project/leolabs/0.1.22/
servers:
  - url: https://api.leolabs.space/v1
    description: LeoLabs Platform API production
security:
  - leolabsKeyPair: []
tags:
  - name: catalog
    description: LeoLabs catalog of tracked LEO objects, their measurements, states and propagations.
  - name: instruments
    description: LeoLabs radar instruments and their tasking.
paths:
  /catalog/objects:
    get:
      tags: [catalog]
      operationId: listCatalogObjects
      summary: List catalog objects
      description: Lists the objects in the LeoLabs catalog.
      responses:
        '200':
          description: A list of catalog objects.
          content:
            application/json:
              schema:
                type: object
                properties:
                  objects:
                    type: array
                    items:
                      $ref: '#/components/schemas/CatalogObject'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/search:
    get:
      tags: [catalog]
      operationId: searchCatalogObjects
      summary: Search the catalog by NORAD catalog number
      description: Resolves a NORAD catalog number to a LeoLabs catalog object.
      parameters:
        - name: noradCatalogNumber
          in: query
          required: true
          description: The NORAD catalog number of the object, e.g. 27386 for ENVISAT.
          schema:
            type: integer
      responses:
        '200':
          description: The matching catalog object.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CatalogObject'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/{catalogNumber}:
    parameters:
      - $ref: '#/components/parameters/CatalogNumber'
    get:
      tags: [catalog]
      operationId: getCatalogObject
      summary: Get a catalog object
      description: Retrieves a single catalog object by its LeoLabs catalog number.
      responses:
        '200':
          description: The catalog object.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CatalogObject'
              example:
                name: ENVISAT
                noradCatalogNumber: 27386
                catalogNumber: L335
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/{catalogNumber}/measurements:
    parameters:
      - $ref: '#/components/parameters/CatalogNumber'
    get:
      tags: [catalog]
      operationId: listCatalogObjectMeasurements
      summary: List radar measurements for a catalog object
      description: Returns the radar measurements collected for a catalog object over a time span.
      parameters:
        - $ref: '#/components/parameters/StartTime'
        - $ref: '#/components/parameters/EndTime'
      responses:
        '200':
          description: The measurements for the object over the requested time span.
          content:
            application/json:
              schema:
                type: object
                properties:
                  measurements:
                    type: array
                    items:
                      $ref: '#/components/schemas/Measurement'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/{catalogNumber}/tasks:
    parameters:
      - $ref: '#/components/parameters/CatalogNumber'
    post:
      tags: [catalog]
      operationId: createCatalogObjectTask
      summary: Request priority tasking for a catalog object
      description: Requests that the radar network prioritise tracking of this object over a time span.
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required: [startTime, endTime]
              properties:
                startTime:
                  type: string
                  format: date-time
                endTime:
                  type: string
                  format: date-time
                priority:
                  type: integer
                  description: Tasking priority. The LeoLabs client sends 100.
      responses:
        '200':
          description: The created task.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaskRef'
              example:
                id: 27102
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/{catalogNumber}/passes/planned:
    parameters:
      - $ref: '#/components/parameters/CatalogNumber'
    get:
      tags: [catalog]
      operationId: listCatalogObjectPlannedPasses
      summary: List planned passes for a catalog object
      description: |
        Returns the planned radar passes for a catalog object. The LeoLabs client passes the literal
        value `all` as the catalog number to request planned passes across the whole catalog.
      responses:
        '200':
          description: Planned passes.
          content:
            application/json:
              schema:
                type: object
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/{catalogNumber}/statistics:
    parameters:
      - $ref: '#/components/parameters/CatalogNumber'
    get:
      tags: [catalog]
      operationId: getCatalogObjectStatistics
      summary: Get statistics for a catalog object
      description: |
        Returns tracking statistics for a catalog object. The LeoLabs client passes the literal value
        `all` as the catalog number to request catalog-wide statistics.
      responses:
        '200':
          description: Statistics.
          content:
            application/json:
              schema:
                type: object
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/{catalogNumber}/states:
    parameters:
      - $ref: '#/components/parameters/CatalogNumber'
    get:
      tags: [catalog]
      operationId: listCatalogObjectStates
      summary: List orbital state vectors for a catalog object
      description: |
        Returns orbital state vectors for a catalog object, either over a time span
        (`startTime`/`endTime`) or the most recent state (`latest=1`).
      parameters:
        - $ref: '#/components/parameters/StartTime'
        - $ref: '#/components/parameters/EndTime'
        - name: latest
          in: query
          required: false
          description: Set to 1 to return only the most recent state vector.
          schema:
            type: integer
      responses:
        '200':
          description: State vectors.
          content:
            application/json:
              schema:
                type: object
                properties:
                  states:
                    type: array
                    items:
                      $ref: '#/components/schemas/State'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/{catalogNumber}/states/{stateId}:
    parameters:
      - $ref: '#/components/parameters/CatalogNumber'
      - $ref: '#/components/parameters/StateId'
    get:
      tags: [catalog]
      operationId: getCatalogObjectState
      summary: Get an orbital state vector
      description: Retrieves a single orbital state vector by id.
      responses:
        '200':
          description: The state vector.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/State'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/{catalogNumber}/states/{stateId}/tles:
    parameters:
      - $ref: '#/components/parameters/CatalogNumber'
      - $ref: '#/components/parameters/StateId'
    get:
      tags: [catalog]
      operationId: listCatalogObjectStateTles
      summary: List TLEs associated with a state vector
      description: Returns the two-line element sets derived from a given orbital state vector.
      responses:
        '200':
          description: TLEs for the state.
          content:
            application/json:
              schema:
                type: object
                properties:
                  tles:
                    type: array
                    items:
                      $ref: '#/components/schemas/Tle'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /catalog/objects/{catalogNumber}/states/{stateId}/propagations:
    parameters:
      - $ref: '#/components/parameters/CatalogNumber'
      - $ref: '#/components/parameters/StateId'
    get:
      tags: [catalog]
      operationId: getCatalogObjectStatePropagation
      summary: Propagate ephemeris from a state vector
      description: |
        Propagates the orbit forward or backward from a given state vector and returns positions,
        velocities and covariances at a fixed timestep. LeoLabs documents support for propagation up to
        plus or minus 7 days from the state timestamp.
      parameters:
        - $ref: '#/components/parameters/StartTime'
        - $ref: '#/components/parameters/EndTime'
        - name: timestep
          in: query
          required: false
          description: Propagation timestep in seconds.
          schema:
            type: number
      responses:
        '200':
          description: The propagation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Propagation'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /instruments:
    get:
      tags: [instruments]
      operationId: listInstruments
      summary: List radar instruments
      description: Lists the LeoLabs radar instruments and their siting and transmit characteristics.
      responses:
        '200':
          description: The instruments.
          content:
            application/json:
              schema:
                type: object
                properties:
                  instruments:
                    type: array
                    items:
                      $ref: '#/components/schemas/Instrument'
              example:
                instruments:
                  - id: pfisr
                    altitude: 213.0
                    longitude: -147.47104
                    latitude: 65.12992
                    transmitFrequency: 450000000.0
                    transmitPower: 2000000.0
                  - id: msr
                    altitude: 855.0
                    longitude: -103.233245
                    latitude: 31.9643
                    transmitFrequency: 440000000.0
                    transmitPower: 65000.0
        '401':
          $ref: '#/components/responses/Unauthorized'
  /instruments/{instrumentId}:
    parameters:
      - $ref: '#/components/parameters/InstrumentId'
    get:
      tags: [instruments]
      operationId: getInstrument
      summary: Get a radar instrument
      responses:
        '200':
          description: The instrument.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Instrument'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /instruments/{instrumentId}/statistics:
    parameters:
      - $ref: '#/components/parameters/InstrumentId'
    get:
      tags: [instruments]
      operationId: getInstrumentStatistics
      summary: Get statistics for a radar instrument
      description: |
        Returns statistics for a radar instrument. The LeoLabs client passes the literal value `all`
        as the instrument id to request statistics across all instruments.
      responses:
        '200':
          description: Statistics.
          content:
            application/json:
              schema:
                type: object
        '401':
          $ref: '#/components/responses/Unauthorized'
  /instruments/{instrumentId}/tasks:
    parameters:
      - $ref: '#/components/parameters/InstrumentId'
    get:
      tags: [instruments]
      operationId: listInstrumentTasks
      summary: List tasks for a radar instrument
      responses:
        '200':
          description: The tasks.
          content:
            application/json:
              schema:
                type: object
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      tags: [instruments]
      operationId: createInstrumentTask
      summary: Create a task on a radar instrument
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required: [startTime, endTime]
              properties:
                startTime:
                  type: string
                  format: date-time
                endTime:
                  type: string
                  format: date-time
      responses:
        '200':
          description: The created task.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaskRef'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /instruments/{instrumentId}/tasks/{taskId}:
    parameters:
      - $ref: '#/components/parameters/InstrumentId'
      - $ref: '#/components/parameters/TaskId'
    get:
      tags: [instruments]
      operationId: getInstrumentTask
      summary: Get a radar instrument task
      responses:
        '200':
          description: The task.
          content:
            application/json:
              schema:
                type: object
        '401':
          $ref: '#/components/responses/Unauthorized'
  /instruments/{instrumentId}/tasks/{taskId}/measurements:
    parameters:
      - $ref: '#/components/parameters/InstrumentId'
      - $ref: '#/components/parameters/TaskId'
    get:
      tags: [instruments]
      operationId: listInstrumentTaskMeasurements
      summary: List measurements collected by a task
      responses:
        '200':
          description: The measurements.
          content:
            application/json:
              schema:
                type: object
                properties:
                  measurements:
                    type: array
                    items:
                      $ref: '#/components/schemas/Measurement'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  securitySchemes:
    leolabsKeyPair:
      type: apiKey
      in: header
      name: Authorization
      description: |
        LeoLabs access key / secret key pair, sent as `Authorization: basic <accessKey>:<secretKey>`.
        Despite the `basic` prefix this is not RFC 7617 HTTP Basic — the LeoLabs client sends the two
        keys colon-joined and unencoded. Keys are issued from the LeoLabs Platform
        (https://platform.leolabs.space/) and the official client reads them from the
        `LEOLABS_ACCESS_KEY` and `LEOLABS_SECRET_KEY` environment variables or from `~/.leolabs/config`.
  parameters:
    CatalogNumber:
      name: catalogNumber
      in: path
      required: true
      description: LeoLabs catalog number, e.g. `L335`. Some endpoints accept the literal `all`.
      schema:
        type: string
    StateId:
      name: stateId
      in: path
      required: true
      description: Orbital state vector id.
      schema:
        type: string
    InstrumentId:
      name: instrumentId
      in: path
      required: true
      description: Radar instrument id, e.g. `pfisr` or `msr`. Some endpoints accept the literal `all`.
      schema:
        type: string
    TaskId:
      name: taskId
      in: path
      required: true
      description: Task id.
      schema:
        type: string
    StartTime:
      name: startTime
      in: query
      required: false
      description: ISO 8601 UTC start of the requested time span, e.g. `2017-11-08T00:00:00Z`.
      schema:
        type: string
        format: date-time
    EndTime:
      name: endTime
      in: query
      required: false
      description: ISO 8601 UTC end of the requested time span.
      schema:
        type: string
        format: date-time
  responses:
    Unauthorized:
      description: Missing or invalid LeoLabs access key / secret key pair.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    CatalogObject:
      type: object
      description: An object tracked in the LeoLabs LEO catalog.
      properties:
        catalogNumber:
          type: string
          description: LeoLabs catalog number, e.g. `L335`.
        noradCatalogNumber:
          type: integer
          description: NORAD catalog number, e.g. 27386.
        name:
          type: string
          description: Object name, e.g. `ENVISAT`.
    Instrument:
      type: object
      description: A LeoLabs radar instrument.
      properties:
        id:
          type: string
        latitude:
          type: number
        longitude:
          type: number
        altitude:
          type: number
        transmitFrequency:
          type: number
        transmitPower:
          type: number
    Measurement:
      type: object
      description: A single radar measurement of a catalog object.
      properties:
        id:
          type: integer
        catalogNumber:
          type: string
        noradCatalogNumber:
          type: integer
        instrument:
          type: string
        experiment:
          type: integer
        beam:
          type: integer
        group:
          type: integer
        targetPass:
          type: integer
        snr:
          type: number
        integrationTime:
          type: number
        transmittedAt:
          type: string
          format: date-time
        receivedAt:
          type: string
          format: date-time
        measuredAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        values:
          $ref: '#/components/schemas/MeasurementValues'
        corrected:
          $ref: '#/components/schemas/MeasurementValues'
        corrections:
          type: array
          items:
            $ref: '#/components/schemas/MeasurementCorrection'
    MeasurementValues:
      type: object
      description: Raw or corrected radar observables for a measurement.
      properties:
        range:
          type: number
        rangeError:
          type: number
        doppler:
          type: number
        dopplerError:
          type: number
        azimuth:
          type: number
        elevation:
          type: number
        rcs:
          type: number
          description: Radar cross section.
    MeasurementCorrection:
      type: object
      description: A correction applied to a raw measurement.
      properties:
        source:
          type: string
          description: Correction source, e.g. `leolabs`, `iri16`.
        type:
          type: string
          description: Correction type, e.g. `doppler_bias`, `range_bias`, `ionospheric`.
        value:
          type: number
        error:
          type: number
    State:
      type: object
      description: An orbital state vector for a catalog object.
      properties:
        id:
          type: integer
        catalogNumber:
          type: string
        noradCatalogNumber:
          type: integer
        timestamp:
          type: string
          format: date-time
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        frames:
          type: object
          description: State expressed in one or more reference frames, e.g. `EME2000` and `TNW`.
          additionalProperties:
            $ref: '#/components/schemas/StateFrame'
        coefficients:
          type: object
          description: Fitted physical coefficients for the object.
          properties:
            fitted:
              type: object
              properties:
                drag:
                  type: number
                reflectivity:
                  type: number
        tle:
          $ref: '#/components/schemas/Tle'
    StateFrame:
      type: object
      description: Position, velocity and covariance in a single reference frame.
      properties:
        position:
          type: array
          items:
            type: number
        velocity:
          type: array
          items:
            type: number
        covariance:
          type: array
          items:
            type: array
            items:
              type: number
        covarianceExtended:
          type: array
          items:
            type: array
            items:
              type: number
    Tle:
      type: object
      description: A two-line element set derived from a LeoLabs state vector.
      properties:
        catalogNumber:
          type: string
    Propagation:
      type: object
      description: A propagated ephemeris derived from a state vector.
      properties:
        state:
          type: string
        startTime:
          type: string
          format: date-time
        endTime:
          type: string
          format: date-time
        timestep:
          type: number
        frame:
          type: string
          description: Reference frame of the propagation, e.g. `EME2000`.
        propagation:
          type: array
          items:
            type: object
            properties:
              position:
                type: array
                items:
                  type: number
              velocity:
                type: array
                items:
                  type: number
              covariance:
                type: array
                items:
                  type: array
                  items:
                    type: number
    TaskRef:
      type: object
      description: A reference to a created tasking request.
      properties:
        id:
          type: integer
    Error:
      type: object
      description: |
        Error envelope. The official LeoLabs client falls back to `{"error": "unknown"}` when a failed
        response body cannot be parsed as JSON, indicating a top-level `error` member.
      properties:
        error:
          type: string