Get a Memory Store revision

curl --request GET \
  --url https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision} \
  --header 'Authorization: Bearer <token>' \
  --header 'checkfu-version: <checkfu-version>'

import requests

url = "https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}"

headers = {
    "checkfu-version": "<checkfu-version>",
    "Authorization": "Bearer <token>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {
  method: 'GET',
  headers: {'checkfu-version': '<checkfu-version>', Authorization: 'Bearer <token>'}
};

fetch('https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "checkfu-version: <checkfu-version>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("checkfu-version", "<checkfu-version>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}")
  .header("checkfu-version", "<checkfu-version>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "id": "<string>",
  "store": "<string>",
  "parent_revision": "<string>",
  "kind": "initial",
  "actor": {
    "kind": "principal",
    "principal": "<string>"
  },
  "document_count": 1,
  "total_bytes": 1,
  "tree_hash": "<string>",
  "created_at": "<string>"
}

{
  "error": {
    "type": "validation.malformed",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-malformed"
  }
}

{
  "error": {
    "type": "auth.invalid_key",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
  }
}

{
  "error": {
    "type": "auth.disabled_tenancy",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
  }
}

{
  "error": {
    "type": "memory.not_found",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#memory-not-found"
  }
}

{
  "error": {
    "type": "budget.exceeded",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
  }
}

{
  "error": {
    "type": "runtime.internal",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-internal"
  }
}

{
  "error": {
    "type": "memory.backend_unavailable",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#memory-backend-unavailable"
  }
}

Get a Memory Store revision

Read one MemoryRevision by ID — an immutable snapshot of the store’s whole tree with its parent, kind, actor, counts, and tree_hash. Use it to pin a base for changes, a checkpoint, a fork, or a revision-scoped search. Answers memory.backend_unavailable where the versioned backend is not deployed.

Checkfu support posture: preview; rollout_fenced. Required evidence journey: memory-stores. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities.

GET

memory-stores

{id}

revisions

{revision}

Get a Memory Store revision

curl --request GET \
  --url https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision} \
  --header 'Authorization: Bearer <token>' \
  --header 'checkfu-version: <checkfu-version>'

import requests

url = "https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}"

headers = {
    "checkfu-version": "<checkfu-version>",
    "Authorization": "Bearer <token>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {
  method: 'GET',
  headers: {'checkfu-version': '<checkfu-version>', Authorization: 'Bearer <token>'}
};

fetch('https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "checkfu-version: <checkfu-version>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("checkfu-version", "<checkfu-version>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}")
  .header("checkfu-version", "<checkfu-version>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.checkfu.com/v1/memory-stores/{id}/revisions/{revision}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "id": "<string>",
  "store": "<string>",
  "parent_revision": "<string>",
  "kind": "initial",
  "actor": {
    "kind": "principal",
    "principal": "<string>"
  },
  "document_count": 1,
  "total_bytes": 1,
  "tree_hash": "<string>",
  "created_at": "<string>"
}

{
  "error": {
    "type": "validation.malformed",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-malformed"
  }
}

{
  "error": {
    "type": "auth.invalid_key",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
  }
}

{
  "error": {
    "type": "auth.disabled_tenancy",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
  }
}

{
  "error": {
    "type": "memory.not_found",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#memory-not-found"
  }
}

{
  "error": {
    "type": "budget.exceeded",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
  }
}

{
  "error": {
    "type": "runtime.internal",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-internal"
  }
}

{
  "error": {
    "type": "memory.backend_unavailable",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#memory-backend-unavailable"
  }
}

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

checkfu-version

enum<string>

required

Available options:

2026-08-27

Path Parameters

string

required

Pattern: ^memstore_[0-9a-f]{32}$

revision

string

required

Pattern: ^mrev_[0-9a-f]{32}$

Response

Success

string

required

Pattern: ^mrev_[0-9a-f]{32}$

store

string

required

Pattern: ^memstore_[0-9a-f]{32}$

parent_revision

string | null

required

Pattern: ^mrev_[0-9a-f]{32}$

kind

enum<string>

required

Available options:

initial,

direct,

session_checkpoint,

curation,

proposal,

redaction,

import

actor

object

required

Option 1
Option 2
Option 3
Option 4
Option 5

Show child attributes

document_count

integer

required

Required range: x >= 0

total_bytes

integer

required

Required range: x >= 0

tree_hash

string

required

Pattern: ^sha256:[0-9a-f]{64}$

created_at

string

required

Developer tools

Canonical tables

Author protocols

Generated HTTP API

Get a Memory Store revision

Authorizations

Headers

Path Parameters

Response