Use the Checkfu API MCP server
curl --request POST \
--url https://api.checkfu.com/v1/mcp \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '"<unknown>"'import requests
url = "https://api.checkfu.com/v1/mcp"
payload = "<unknown>"
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify('<unknown>')
};
fetch('https://api.checkfu.com/v1/mcp', 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/mcp",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode('<unknown>'),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.checkfu.com/v1/mcp"
payload := strings.NewReader("\"<unknown>\"")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.checkfu.com/v1/mcp")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("\"<unknown>\"")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.checkfu.com/v1/mcp")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "\"<unknown>\""
response = http.request(request)
puts response.read_body{
"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": "validation.payload_too_large",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#validation-payload-too-large"
}
}{
"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"
}
}Use the Checkfu API MCP server
Stateless Streamable HTTP MCP server that projects reviewed public API operations as JSON-RPC tools. It supports initialize, discovery, tool search, tools/list, and tools/call; dispatches calls through the ordinary REST router so authentication, workspace binding, budgets, policy, audit, and idempotency semantics remain identical; rejects browser origins; and bounds request, response, and synthesized REST payload sizes.
Checkfu support posture: alpha; hosted. Required evidence journey: api-mcp. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities.
POST
/
v1
/
mcp
Use the Checkfu API MCP server
curl --request POST \
--url https://api.checkfu.com/v1/mcp \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '"<unknown>"'import requests
url = "https://api.checkfu.com/v1/mcp"
payload = "<unknown>"
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify('<unknown>')
};
fetch('https://api.checkfu.com/v1/mcp', 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/mcp",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode('<unknown>'),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.checkfu.com/v1/mcp"
payload := strings.NewReader("\"<unknown>\"")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.checkfu.com/v1/mcp")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("\"<unknown>\"")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.checkfu.com/v1/mcp")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "\"<unknown>\""
response = http.request(request)
puts response.read_body{
"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": "validation.payload_too_large",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#validation-payload-too-large"
}
}{
"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"
}
}Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Headers
Available options:
2026-07-28, 2025-11-25, 2025-06-18 Routable method header (2026-07-28 stateless shape): mirrors the JSON-RPC method so a gateway can route and meter without parsing the body.
Routable name header (2026-07-28 stateless shape): mirrors tools/call params.name.
Query Parameters
Available options:
compact, full Body
application/json
A JSON-RPC 2.0 request envelope
Response
JSON-RPC 2.0 response envelope