Call a catalog service, paid with subscription credits
curl --request POST \
--url https://api.sandbox.nevermined.app/api/v1/router/subscription/route \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"slug": "webscrape-pro",
"path": "scrape",
"method": "POST",
"body": {
"url": "https://example.com"
},
"requestId": "scrape-example-com-1"
}
'import requests
url = "https://api.sandbox.nevermined.app/api/v1/router/subscription/route"
payload = {
"slug": "webscrape-pro",
"path": "scrape",
"method": "POST",
"body": { "url": "https://example.com" },
"requestId": "scrape-example-com-1"
}
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({
slug: 'webscrape-pro',
path: 'scrape',
method: 'POST',
body: JSON.stringify({url: 'https://example.com'}),
requestId: 'scrape-example-com-1'
})
};
fetch('https://api.sandbox.nevermined.app/api/v1/router/subscription/route', 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.sandbox.nevermined.app/api/v1/router/subscription/route",
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([
'slug' => 'webscrape-pro',
'path' => 'scrape',
'method' => 'POST',
'body' => [
'url' => 'https://example.com'
],
'requestId' => 'scrape-example-com-1'
]),
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.sandbox.nevermined.app/api/v1/router/subscription/route"
payload := strings.NewReader("{\n \"slug\": \"webscrape-pro\",\n \"path\": \"scrape\",\n \"method\": \"POST\",\n \"body\": {\n \"url\": \"https://example.com\"\n },\n \"requestId\": \"scrape-example-com-1\"\n}")
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.sandbox.nevermined.app/api/v1/router/subscription/route")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"slug\": \"webscrape-pro\",\n \"path\": \"scrape\",\n \"method\": \"POST\",\n \"body\": {\n \"url\": \"https://example.com\"\n },\n \"requestId\": \"scrape-example-com-1\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.sandbox.nevermined.app/api/v1/router/subscription/route")
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 = "{\n \"slug\": \"webscrape-pro\",\n \"path\": \"scrape\",\n \"method\": \"POST\",\n \"body\": {\n \"url\": \"https://example.com\"\n },\n \"requestId\": \"scrape-example-com-1\"\n}"
response = http.request(request)
puts response.read_body{
"status": 123,
"body": "<unknown>",
"paid": true,
"bodyEncoding": "json",
"contentType": "application/json",
"payment": {
"paymentId": "<string>",
"status": "Issued",
"txHash": "<string>",
"failureReason": "<string>",
"correlationId": "<string>",
"creditsCharged": 3,
"creditsStatus": "Reserved",
"resultUrl": "<string>"
}
}{
"paymentId": "b1f9c2e4-3d5a-4c7e-9f21-6a8b0c4d2e13",
"resultUrl": "/api/v1/router/payments/b1f9c2e4-3d5a-4c7e-9f21-6a8b0c4d2e13/result",
"status": "Pending"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}Router
Call a Service with Subscription Credits
Call a catalog service and pay it with your Nevermined Subscription credits (mode B). Like POST /router/route, but Nevermined pays the merchant from its treasury and your subscription is charged the endpoint’s rate in credits. There is no Delegation, no wallet to fund and no routing fee.
- A slug, never a URL. Address the service by
slug(+path,search,method,headers,body). Aurlor adelegationIdis refused (BCK.SUBSCRIPTION_ROUTER.0005), not ignored. requestIdis required (idempotency): a retry with the same id is never paid twice.- Only a merchant
2xxkeeps the credits. They are reserved before the merchant is called and kept (Committed) only on a2xx; anything else marks them for refund and they are returned (Refunded). Every refusal below happens before anything is reserved, signed or charged — except a 502, which can follow a payment. - Rails: x402
exactand MPPtempomerchants only.
For large or streamed responses, the streaming form is ALL /api/v1/router/subscription/svc/{slug}/{path} with an X-Router-Request-Id header; it answers with X-Router-Credits-Charged and X-Router-Credits-Status beside the X-Router-Payment-* headers, and refuses X-Router-Target-Url, X-Router-Target-Slug and X-Router-Delegation-Id.
Personal API keys only: the Nevermined Subscription belongs to a personal account, so call with a key that carries no organization tag and without X-Current-Org-Id. An OAuth-minted credential is refused (BCK.OAUTH.0030). Where the subscription is not available — on this deployment or to this account — it answers 404 BCK.SUBSCRIPTION_ACCESS.0001.
POST
/
router
/
subscription
/
route
Call a catalog service, paid with subscription credits
curl --request POST \
--url https://api.sandbox.nevermined.app/api/v1/router/subscription/route \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"slug": "webscrape-pro",
"path": "scrape",
"method": "POST",
"body": {
"url": "https://example.com"
},
"requestId": "scrape-example-com-1"
}
'import requests
url = "https://api.sandbox.nevermined.app/api/v1/router/subscription/route"
payload = {
"slug": "webscrape-pro",
"path": "scrape",
"method": "POST",
"body": { "url": "https://example.com" },
"requestId": "scrape-example-com-1"
}
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({
slug: 'webscrape-pro',
path: 'scrape',
method: 'POST',
body: JSON.stringify({url: 'https://example.com'}),
requestId: 'scrape-example-com-1'
})
};
fetch('https://api.sandbox.nevermined.app/api/v1/router/subscription/route', 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.sandbox.nevermined.app/api/v1/router/subscription/route",
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([
'slug' => 'webscrape-pro',
'path' => 'scrape',
'method' => 'POST',
'body' => [
'url' => 'https://example.com'
],
'requestId' => 'scrape-example-com-1'
]),
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.sandbox.nevermined.app/api/v1/router/subscription/route"
payload := strings.NewReader("{\n \"slug\": \"webscrape-pro\",\n \"path\": \"scrape\",\n \"method\": \"POST\",\n \"body\": {\n \"url\": \"https://example.com\"\n },\n \"requestId\": \"scrape-example-com-1\"\n}")
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.sandbox.nevermined.app/api/v1/router/subscription/route")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"slug\": \"webscrape-pro\",\n \"path\": \"scrape\",\n \"method\": \"POST\",\n \"body\": {\n \"url\": \"https://example.com\"\n },\n \"requestId\": \"scrape-example-com-1\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.sandbox.nevermined.app/api/v1/router/subscription/route")
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 = "{\n \"slug\": \"webscrape-pro\",\n \"path\": \"scrape\",\n \"method\": \"POST\",\n \"body\": {\n \"url\": \"https://example.com\"\n },\n \"requestId\": \"scrape-example-com-1\"\n}"
response = http.request(request)
puts response.read_body{
"status": 123,
"body": "<unknown>",
"paid": true,
"bodyEncoding": "json",
"contentType": "application/json",
"payment": {
"paymentId": "<string>",
"status": "Issued",
"txHash": "<string>",
"failureReason": "<string>",
"correlationId": "<string>",
"creditsCharged": 3,
"creditsStatus": "Reserved",
"resultUrl": "<string>"
}
}{
"paymentId": "b1f9c2e4-3d5a-4c7e-9f21-6a8b0c4d2e13",
"resultUrl": "/api/v1/router/payments/b1f9c2e4-3d5a-4c7e-9f21-6a8b0c4d2e13/result",
"status": "Pending"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}{
"code": "BCK.ROUTER.0003",
"httpStatus": 500,
"message": "delegation budget exceeded, expired, or inactive",
"details": "Hash JWT is not signed by the node account",
"error": "authorization_pending",
"hint": "Verify the wallet has sufficient balance and that the plan is active.",
"docsUrl": "https://nevermined.ai/docs/development-guide/api-errors/codes#bck-x402-0008",
"category": "integration",
"retryable": true,
"correlationId": "a3f6b1c4-7d2e-4a9b-8e0c-12f4d8e6c5b9",
"uuid": "e-550e8400-e29b-41d4-a716-446655440000",
"date": "2026-05-09T12:34:56.789Z",
"params": "{\"planId\":\"43298432984329\",\"reason\":\"Invalid configuration\"}"
}Authorizations
Your Nevermined API Key (starts with 'nvm:'). Get one at nevermined.app under Settings > API Keys.
Body
application/json
Catalog slug of the service to call. Subscription credits pay catalog services only, addressed by slug; the Router resolves it to the merchant server-side.
Pattern:
^[A-Za-z0-9._~-]+$Example:
"webscrape-pro"
Idempotency key — REQUIRED. At most one payment per (caller, requestId): a retry is never paid twice.
Maximum string length:
256Pattern:
\SExample:
"scrape-example-com-1"
Subpath of the endpoint, appended to the resolved merchant URL (path segments only — //, .., a backslash or an embedded absolute URL is refused).
Maximum string length:
2048Example:
"scrape"
Query string without the leading ?, attached to the resolved merchant URL.
Maximum string length:
2048Example:
"q=nevermined&limit=1"
HTTP method to use for the upstream request.
Available options:
GET, POST, PUT, PATCH, DELETE Headers to forward to the merchant (e.g. its own auth). Optional.
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Request body to forward (JSON). Optional.
Header the payment credential rides in on the paid hop, when the merchant needs its own Authorization too (a separate Payment header is the common one). Do not set it by default.
Maximum string length:
64Example:
"Payment"
Advisory: the Router detects the protocol from the merchant's 402.
Available options:
x402, mpp Response
The merchant's response (status, and body only when it delivered) plus the payment Nevermined made and the credits it cost.
The merchant's HTTP status.
The merchant's response body — null unless a paid call delivered (2xx), so a failed call reveals nothing about the merchant. A free answer relays only its status (paid: false), except a declared follow-up poll after a paid call.
Whether a payment was made (false when the service answered free).
How body is represented. Absent when body is withheld.
Available options:
json, text, base64 The merchant's response media type, when body is relayed.
Example:
"application/json"
Show child attributes
Show child attributes
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