Obsidian Local REST API

Community-built plugin (by @coddingtonbear) that exposes the Obsidian vault over a local HTTPS REST API on port 27124. Endpoint groups include Vault file CRUD, Active File, Periodic Notes (daily/weekly/monthly), Search, Commands, Tags, and File Opening. Bearer-token authenticated. Used by browser extensions, scripts, and AI agents to read and write into a running Obsidian instance.

OpenAPI Specification

obsidian-local-rest-api-openapi.yaml Raw ↑
components:
  schemas:
    Error:
      properties:
        errorCode:
          description: |
            A 5-digit error code uniquely identifying this particular type of error.
          example: 40149
          type: "number"
        message:
          description: "Message describing the error."
          example: "A brief description of the error."
          type: "string"
      type: "object"
    NoteJson:
      properties:
        content:
          type: "string"
        frontmatter:
          type: "object"
        path:
          type: "string"
        stat:
          properties:
            ctime:
              type: "number"
            mtime:
              type: "number"
            size:
              type: "number"
          required:
            - "ctime"
            - "mtime"
            - "size"
          type: "object"
        tags:
          items:
            type: "string"
          type: "array"
      required:
        - "tags"
        - "frontmatter"
        - "stat"
        - "path"
        - "content"
      type: "object"
  securitySchemes:
    apiKeyAuth:
      description: |
        Find your API Key in your Obsidian settings
        in the "Local REST API" section under "Plugins".
      scheme: "bearer"
      type: "http"
info:
  description: |
    You can use this interface for trying out your Local REST API in Obsidian.
    
    Before trying the below tools, you will want to make sure you press the "Authorize" button below and provide the API Key you are shown when you open the "Local REST API" section of your Obsidian settings.  All requests to the API require a valid API Key; so you won't get very far without doing that.
    
    When using this tool you may see browser security warnings due to your browser not trusting the self-signed certificate the plugin will generate on its first run.  If you do, you can make those errors disappear by adding the certificate as a "Trusted Certificate" in your browser or operating system's settings.
  title: "Local REST API for Obsidian"
  version: "1.0"
openapi: "3.0.2"
paths:
  /:
    get:
      description: |
        Returns basic details about the server as well as your authentication status.
        
        This is the only API request that does *not* require authentication.
      responses:
        "200":
          content:
            application/json:
              schema:
                properties:
                  authenticated:
                    description: "Is your current request authenticated?"
                    type: "boolean"
                  ok:
                    description: "'OK'"
                    type: "string"
                  service:
                    description: "'Obsidian Local REST API'"
                    type: "string"
                  versions:
                    properties:
                      obsidian:
                        description: "Obsidian plugin API version"
                        type: "string"
                      self:
                        description: "Plugin version."
                        type: "string"
                    type: "object"
                type: "object"
          description: "Success"
      summary: |
        Returns basic details about the server.
      tags:
        - "System"
  /active/:
    delete:
      parameters: []
      responses:
        "204":
          description: "Success"
        "404":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: "File does not exist."
        "405":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: |
            Your path references a directory instead of a file; this request method is valid only for updating files.
      summary: |
        Deletes the currently-active file in Obsidian.
      tags:
        - "Active File"
    get:
      description: |
        Returns the content of the currently active file in Obsidian.
        
        # Targeting a Sub-part of your Document
        
        You can operate on a specific section of a note instead of the whole file by providing `Target-Type` and `Target` headers:
        
        - Set `Target-Type` to `heading`, `block`, or `frontmatter`.
        - Set `Target` to the name of the heading, block reference, or frontmatter field. If the target contains non-ASCII characters (e.g. accented letters), percent-encode the value (e.g. `H%C3%A9llo` for `Héllo`).
        - For nested headings, use the `Target-Delimiter` header (default `::`) to separate levels.
        
        You can also embed the target type and target directly in the URL path after the note identifier instead of using headers. The segment immediately following the note identifier is the target type, and the remaining segments form the target:
        
        - `.../heading/My%20Section` is equivalent to supplying `Target-Type: heading` and `Target: My%20Section`.
        - For nested headings, add additional path segments: `.../heading/My%20Section/Subsection` is equivalent to `Target: My%20Section::Subsection`.
        - `.../frontmatter/fieldName` targets the `fieldName` frontmatter field.
        - `.../block/abc123` targets the block with reference ID `abc123`.
        
        When URL-embedded values are present they take priority over the corresponding headers.
        
        # Retrieving Document Metadata
        
        ## Metadata
        
        If you specify the header `Accept: application/vnd.olrapi.note+json`, will return a JSON representation of your note including parsed tag and frontmatter data as well as filesystem metadata.
        
        ## Document Map
        
        If you specify the header `Accept: application/vnd.olrapi.document-map+json`, will return a JSON object outlining what PATCH targets exist. See "responses" below for details.
      parameters:
        - description: |
            Type of sub-document section to target. When specified, the operation
            applies only to the matching section rather than the whole file. Must
            be used together with the `Target` header.
            
            - `heading`: a markdown heading section.
            - `block`: a block reference.
            - `frontmatter`: a frontmatter field.
          in: "header"
          name: "Target-Type"
          required: false
          schema:
            enum:
              - "heading"
              - "block"
              - "frontmatter"
            type: "string"
        - description: |
            The section to target; required when `Target-Type` is specified.
            This value can be URL-Encoded and *must* be URL-Encoded if it
            includes non-ASCII characters.
          in: "header"
          name: "Target"
          required: false
          schema:
            type: "string"
        - description: "Delimiter used when specifying nested heading targets (e.g. \"Heading 1::Subheading\"). Defaults to \"::\"."
          in: "header"
          name: "Target-Delimiter"
          required: false
          schema:
            default: "::"
            type: "string"
      responses:
        "200":
          content:
            application/json:
              description: "Returned when `Target-Type` is `frontmatter`; the JSON value of the specified frontmatter field."
              schema: {}
            "application/vnd.olrapi.document-map+json":
              schema:
                properties:
                  blocks:
                    example:
                      - "^blockref1"
                      - "^anotherBlockRef"
                    items:
                      type: "string"
                    type: "array"
                  frontmatterFields:
                    example:
                      - "title"
                      - "tags"
                      - "dateCreated"
                    items:
                      type: "string"
                    type: "array"
                  headings:
                    example:
                      - "Heading 1"
                      - "Heading 1::Subhead of Heading 1"
                      - "Heading 2"
                    items:
                      type: "string"
                    type: "array"
                type: "object"
            "application/vnd.olrapi.note+json":
              schema:
                "$ref": "#/components/schemas/NoteJson"
            text/markdown:
              schema:
                example: |
                  # This is my document
                  
                  something else here
                type: "string"
          description: "Success"
        "404":
          description: "File or target section does not exist"
      summary: |
        Return the content of the active file open in Obsidian.
      tags:
        - "Active File"
    patch:
      description: |
        Inserts content into the currently-open note relative to a heading, block reference, or frontmatter field within that document.
        
        Allows you to modify the content relative to a heading, block reference, or frontmatter field in your document.
        
        > ![note]
        > Note that this API was changed in Version 3.0 of this extension and the earlier PATCH API is now deprecated. Requests made using the previous version of this API will continue to work until Version 4.0 is released.  See https://github.com/coddingtonbear/obsidian-local-rest-api/wiki/Changes-to-PATCH-requests-between-versions-2.0-and-3.0 for more details and migration instructions.
        
        # How to Use & Examples
        
        All of the below examples assume you have a document that looks like
        this:
        
        ```markdown
        ---
        alpha: 1
        beta: test
        delta:
        zeta: 1
        yotta: 1
        gamma:
        - one
        - two
        ---
        
        # Heading 1
        
        This is the content for heading one
        
        Also references some [[#^484ef2]]
        
        ## Subheading 1:1
        Content for Subheading 1:1
        
        ### Subsubheading 1:1:1
        
        ### Subsubheading 1:1:2
        
        Testing how block references work for a table.[[#^2c7cfa]]
        Some content for Subsubheading 1:1:2
        
        More random text.
        
        ^2d9b4a
        
        ## Subheading 1:2
        
        Content for Subheading 1:2.
        
        some content with a block reference ^484ef2
        
        ## Subheading 1:3
        | City         | Population |
        | ------------ | ---------- |
        | Seattle, WA  | 8          |
        | Portland, OR | 4          |
        
        ^2c7cfa
        ```
        
        ## Append, Prepend, or Replace Content Below a Heading
        
        If you wanted to append the content "Hello" below "Subheading 1:1:1" under "Heading 1",
        you could send a request with the following headers:
        
        - `Operation`: `append`
        - `Target-Type`: `heading`
        - `Target`: `Heading 1::Subheading 1:1:1` (percent-encode any non-ASCII characters, e.g. `H%C3%A9llo` for `Héllo`)
        - with the request body: `Hello`
        
        The above would work just fine for `prepend` or `replace`, too, of course,
        but with different results.
        
        ## Append, Prepend, or Replace Content to a Block Reference
        
        If you wanted to append the content "Hello" below the block referenced by
        "2d9b4a" above ("More random text."), you could send the following headers:
        
        - `Operation`: `append`
        - `Target-Type`: `block`
        - `Target`: `2d9b4a`
        - with the request body: `Hello`
        
        The above would work just fine for `prepend` or `replace`, too, of course,
        but with different results.
        
        ## Append, Prepend, or Replace a Row or Rows to/in a Table Referenced by a Block Reference
        
        If you wanted to add a new city ("Chicago, IL") and population ("16") pair to the table above
        referenced by the block reference `2c7cfa`, you could send the following
        headers:
        
        - `Operation`: `append`
        - `Target-Type`: `block`
        - `Target`: `2c7cfa`
        - `Content-Type`: `application/json`
        - with the request body: `[["Chicago, IL", "16"]]`
        
        The use of a `Content-Type` of `application/json` allows the API
        to infer that member of your array represents rows and columns of your
        to append to the referenced table.  You can of course just use a
        `Content-Type` of `text/markdown`, but in such a case you'll have to
        format your table row manually instead of letting the library figure
        it out for you.
        
        You also have the option of using `prepend` (in which case, your new
        row would be the first -- right below the table heading) or `replace` (in which
        case all rows except the table heading would be replaced by the new row(s)
        you supplied).
        
        ## Setting a Frontmatter Field
        
        If you wanted to set the frontmatter field `alpha` to `2`, you could
        send the following headers:
        
        - `Operation`: `replace`
        - `Target-Type`: `frontmatter`
        - `Target`: `beep`
        - with the request body `2`
        
        If you're setting a frontmatter field that might not already exist
        you may want to use the `Create-Target-If-Missing` header so the
        new frontmatter field is created and set to your specified value
        if it doesn't already exist.
        
        You may find using a `Content-Type` of `application/json` to be
        particularly useful in the case of frontmatter since frontmatter
        fields' values are JSON data, and the API can be smarter about
        interpreting your `prepend` or `append` requests if you specify
        your data as JSON (particularly when appending, for example,
        list items).
        
        ## Identifying Patch Targets in a File
        
        You can issue a GET request to `/vault/files/{path}` with an `Accept` header
        of `application/vnd.olrapi.document-map+json` to get a JSON object
        outlining what headings, block references, and frontmatter fields exist.
      parameters:
        - description: "Patch operation to perform"
          in: "header"
          name: "Operation"
          required: true
          schema:
            enum:
              - "append"
              - "prepend"
              - "replace"
            type: "string"
        - description: "If the specified Target does not exist, create it?"
          in: "header"
          name: "Create-Target-If-Missing"
          required: false
          schema:
            default: "false"
            enum:
              - "true"
              - "false"
            type: "string"
        - description: "If patch data already exists in Target, apply patch anyway?"
          in: "header"
          name: "Apply-If-Content-Preexists"
          required: false
          schema:
            default: "false"
            enum:
              - "true"
              - "false"
            type: "string"
        - description: "Trim whitespace from Target content before applying the operation?"
          in: "header"
          name: "Trim-Target-Whitespace"
          required: false
          schema:
            default: "false"
            enum:
              - "true"
              - "false"
            type: "string"
        - description: |
            Type of sub-document section to target. When specified, the operation
            applies only to the matching section rather than the whole file. Must
            be used together with the `Target` header.
            
            - `heading`: a markdown heading section.
            - `block`: a block reference.
            - `frontmatter`: a frontmatter field.
          in: "header"
          name: "Target-Type"
          required: true
          schema:
            enum:
              - "heading"
              - "block"
              - "frontmatter"
            type: "string"
        - description: |
            The section to target; required when `Target-Type` is specified.
            This value can be URL-Encoded and *must* be URL-Encoded if it
            includes non-ASCII characters.
          in: "header"
          name: "Target"
          required: true
          schema:
            type: "string"
        - description: "Delimiter used when specifying nested heading targets (e.g. \"Heading 1::Subheading\"). Defaults to \"::\"."
          in: "header"
          name: "Target-Delimiter"
          required: false
          schema:
            default: "::"
            type: "string"
      requestBody:
        content:
          application/json:
            schema:
              example: "['one', 'two']"
              type: "string"
          text/markdown:
            schema:
              example: |
                # This is my document
                
                something else here
              type: "string"
        description: "Content you would like to insert."
        required: true
      responses:
        "200":
          description: "Success"
        "400":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: "Bad Request; see response message for details."
        "404":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: "Does not exist"
        "405":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: |
            Your path references a directory instead of a file; this request method is valid only for updating files.
      summary: |
        Partially update content in the currently open note.
      tags:
        - "Active File"
    post:
      description: |
        Appends content to the end of the currently-open note.
        
        # Targeting a Sub-part of your Document
        
        You can operate on a specific section of a note instead of the whole file by providing `Target-Type` and `Target` headers:
        
        - Set `Target-Type` to `heading`, `block`, or `frontmatter`.
        - Set `Target` to the name of the heading, block reference, or frontmatter field. If the target contains non-ASCII characters (e.g. accented letters), percent-encode the value (e.g. `H%C3%A9llo` for `Héllo`).
        - For nested headings, use the `Target-Delimiter` header (default `::`) to separate levels.
        
        You can also embed the target type and target directly in the URL path after the note identifier instead of using headers. The segment immediately following the note identifier is the target type, and the remaining segments form the target:
        
        - `.../heading/My%20Section` is equivalent to supplying `Target-Type: heading` and `Target: My%20Section`.
        - For nested headings, add additional path segments: `.../heading/My%20Section/Subsection` is equivalent to `Target: My%20Section::Subsection`.
        - `.../frontmatter/fieldName` targets the `fieldName` frontmatter field.
        - `.../block/abc123` targets the block with reference ID `abc123`.
        
        When URL-embedded values are present they take priority over the corresponding headers.
        
        When a target is specified the content is appended within that section and the full updated file content is returned with a `200` status. Without a target, the content is appended to the end of the file and a `204` status is returned.
        
        If you need `prepend` or `replace` operations, use `PATCH` instead.
      parameters:
        - description: "If the specified Target does not exist, create it?"
          in: "header"
          name: "Create-Target-If-Missing"
          required: false
          schema:
            default: "false"
            enum:
              - "true"
              - "false"
            type: "string"
        - description: "If patch data already exists in Target, apply patch anyway?"
          in: "header"
          name: "Apply-If-Content-Preexists"
          required: false
          schema:
            default: "false"
            enum:
              - "true"
              - "false"
            type: "string"
        - description: "Trim whitespace from Target content before applying the operation?"
          in: "header"
          name: "Trim-Target-Whitespace"
          required: false
          schema:
            default: "false"
            enum:
              - "true"
              - "false"
            type: "string"
        - description: |
            Type of sub-document section to target. When specified, the operation
            applies only to the matching section rather than the whole file. Must
            be used together with the `Target` header.
            
            - `heading`: a markdown heading section.
            - `block`: a block reference.
            - `frontmatter`: a frontmatter field.
          in: "header"
          name: "Target-Type"
          required: false
          schema:
            enum:
              - "heading"
              - "block"
              - "frontmatter"
            type: "string"
        - description: |
            The section to target; required when `Target-Type` is specified.
            This value can be URL-Encoded and *must* be URL-Encoded if it
            includes non-ASCII characters.
          in: "header"
          name: "Target"
          required: false
          schema:
            type: "string"
        - description: "Delimiter used when specifying nested heading targets (e.g. \"Heading 1::Subheading\"). Defaults to \"::\"."
          in: "header"
          name: "Target-Delimiter"
          required: false
          schema:
            default: "::"
            type: "string"
      requestBody:
        content:
          text/markdown:
            schema:
              example: |
                # This is my document
                
                something else here
              type: "string"
        description: "Content you would like to append."
        required: true
      responses:
        "200":
          content:
            text/markdown:
              schema:
                type: "string"
          description: "Success; targeted section updated. The full updated file content is returned."
        "204":
          description: "Success; content appended to end of file."
        "400":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: "Bad Request"
        "405":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: |
            Your path references a directory instead of a file; this request method is valid only for updating files.
      summary: |
        Append content to the active file open in Obsidian.
      tags:
        - "Active File"
    put:
      description: |
        # Targeting a Sub-part of your Document
        
        You can operate on a specific section of a note instead of the whole file by providing `Target-Type` and `Target` headers:
        
        - Set `Target-Type` to `heading`, `block`, or `frontmatter`.
        - Set `Target` to the name of the heading, block reference, or frontmatter field. If the target contains non-ASCII characters (e.g. accented letters), percent-encode the value (e.g. `H%C3%A9llo` for `Héllo`).
        - For nested headings, use the `Target-Delimiter` header (default `::`) to separate levels.
        
        You can also embed the target type and target directly in the URL path after the note identifier instead of using headers. The segment immediately following the note identifier is the target type, and the remaining segments form the target:
        
        - `.../heading/My%20Section` is equivalent to supplying `Target-Type: heading` and `Target: My%20Section`.
        - For nested headings, add additional path segments: `.../heading/My%20Section/Subsection` is equivalent to `Target: My%20Section::Subsection`.
        - `.../frontmatter/fieldName` targets the `fieldName` frontmatter field.
        - `.../block/abc123` targets the block with reference ID `abc123`.
        
        When URL-embedded values are present they take priority over the corresponding headers.
        
        When a target is specified the target section is replaced with the request body and the full updated file content is returned with a `200` status. If the target does not exist it will be created. Without a target, the entire file is replaced and a `204` status is returned.
      parameters:
        - description: "If patch data already exists in Target, apply patch anyway?"
          in: "header"
          name: "Apply-If-Content-Preexists"
          required: false
          schema:
            default: "false"
            enum:
              - "true"
              - "false"
            type: "string"
        - description: "Trim whitespace from Target content before applying the operation?"
          in: "header"
          name: "Trim-Target-Whitespace"
          required: false
          schema:
            default: "false"
            enum:
              - "true"
              - "false"
            type: "string"
        - description: |
            Type of sub-document section to target. When specified, the operation
            applies only to the matching section rather than the whole file. Must
            be used together with the `Target` header.
            
            - `heading`: a markdown heading section.
            - `block`: a block reference.
            - `frontmatter`: a frontmatter field.
          in: "header"
          name: "Target-Type"
          required: false
          schema:
            enum:
              - "heading"
              - "block"
              - "frontmatter"
            type: "string"
        - description: |
            The section to target; required when `Target-Type` is specified.
            This value can be URL-Encoded and *must* be URL-Encoded if it
            includes non-ASCII characters.
          in: "header"
          name: "Target"
          required: false
          schema:
            type: "string"
        - description: "Delimiter used when specifying nested heading targets (e.g. \"Heading 1::Subheading\"). Defaults to \"::\"."
          in: "header"
          name: "Target-Delimiter"
          required: false
          schema:
            default: "::"
            type: "string"
      requestBody:
        content:
          "*/*":
            schema:
              type: "string"
          text/markdown:
            schema:
              example: |
                # This is my document
                
                something else here
              type: "string"
        description: "Content of the file you would like to upload."
        required: true
      responses:
        "200":
          content:
            text/markdown:
              schema:
                type: "string"
          description: "Success; targeted section replaced. The full updated file content is returned."
        "204":
          description: "Success; entire file replaced."
        "400":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: |
            Incoming file could not be processed.  Make sure you have specified a reasonable file name, and make sure you have set a reasonable 'Content-Type' header; if you are uploading a note, 'text/markdown' is likely the right choice.
        "405":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: |
            Your path references a directory instead of a file; this request method is valid only for updating files.
      summary: |
        Update the content of the active file open in Obsidian.
      tags:
        - "Active File"
  /commands/:
    get:
      responses:
        "200":
          content:
            application/json:
              example:
                commands:
                  - id: "global-search:open"
                    name: "Search: Search in all files"
                  - id: "graph:open"
                    name: "Graph view: Open graph view"
              schema:
                properties:
                  commands:
                    items:
                      properties:
                        id:
                          type: "string"
                        name:
                          type: "string"
                      type: "object"
                    type: "array"
                type: "object"
          description: "A list of available commands."
      summary: |
        Get a list of available commands.
      tags:
        - "Commands"
  "/commands/{commandId}/":
    post:
      parameters:
        - description: "The id of the command to execute"
          in: "path"
          name: "commandId"
          required: true
          schema:
            type: "string"
      responses:
        "204":
          description: "Success"
        "404":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: "The command you specified does not exist."
      summary: |
        Execute a command.
      tags:
        - "Commands"
  /obsidian-local-rest-api.crt:
    get:
      responses:
        "200":
          description: "Success"
      summary: |
        Returns the certificate in use by this API.
      tags:
        - "System"
  "/open/{filename}":
    post:
      description: |
        Note: Obsidian will create a new document at the path you have
        specified if such a document did not already exist.
      parameters:
        - description: |
            Path to the file to return (relative to your vault root).
          in: "path"
          name: "filename"
          required: true
          schema:
            format: "path"
            type: "string"
        - description: "Open this as a new leaf?"
          in: "query"
          name: "newLeaf"
          required: false
          schema:
            type: "boolean"
      responses:
        "200":
          description: "Success"
      summary: |
        Open the specified document in the Obsidian user interface.
      tags:
        - "Open"
  /openapi.yaml:
    get:
      responses:
        "200":
          description: "Success"
      summary: |
        Returns OpenAPI YAML document describing the capabilities of this API.
      tags:
        - "System"
  "/periodic/{period}/":
    delete:
      parameters:
        - description: "The name of the period for which you would like to grab a periodic note."
          in: "path"
          name: "period"
          required: true
          schema:
            default: "daily"
            enum:
              - "daily"
              - "weekly"
              - "monthly"
              - "quarterly"
              - "yearly"
            type: "string"
      responses:
        "204":
          description: "Success"
        "404":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: "File does not exist."
        "405":
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/Error"
          description: |
            Your path references a directory instead of a file; this request method is valid only for updating files.
      summary: |
        Delete the current periodic note for the specified period.
      tags:
        - "Periodic Notes"
    get:
      description: |
        Returns the content of the current periodic note for the specified period.
        
        # Targeting a Sub-part of your Document
        
        You can operate on a specific section of a note instead of the whole file by providing `Target-Type` and `Target` headers:
        
        - Set `Target-Type` to `heading`, `block`, or `frontmatter`.
        - Set `Target` to the name of the heading, block reference, or frontm

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# Full source: https://raw.githubusercontent.com/api-evangelist/obsidian/refs/heads/main/openapi/obsidian-local-rest-api-openapi.yaml