curl --request POST \
--url https://mcp.echozero.app/api/v1/agents/{id}/subscription-price \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--header 'x-signature: <x-signature>' \
--header 'x-timestamp: <x-timestamp>' \
--data '
{
"monthlyPriceUsd": 29.99
}
'import requests
url = "https://mcp.echozero.app/api/v1/agents/{id}/subscription-price"
payload = { "monthlyPriceUsd": 29.99 }
headers = {
"x-signature": "<x-signature>",
"x-timestamp": "<x-timestamp>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'x-signature': '<x-signature>',
'x-timestamp': '<x-timestamp>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({monthlyPriceUsd: 29.99})
};
fetch('https://mcp.echozero.app/api/v1/agents/{id}/subscription-price', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));const options = {
method: 'POST',
headers: {
'x-signature': '<x-signature>',
'x-timestamp': '<x-timestamp>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({monthlyPriceUsd: 29.99})
};
fetch('https://mcp.echozero.app/api/v1/agents/{id}/subscription-price', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://mcp.echozero.app/api/v1/agents/{id}/subscription-price"
payload := strings.NewReader("{\n \"monthlyPriceUsd\": 29.99\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("x-signature", "<x-signature>")
req.Header.Add("x-timestamp", "<x-timestamp>")
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))
}{
"success": true,
"data": {
"agentId": "<string>",
"monthlyPriceUsd": 123,
"stripeProductId": "<string>",
"stripePriceId": "<string>",
"effectiveDate": "<string>",
"scheduledPriceChangeId": "<string>"
}
}{
"success": false,
"error": {
"code": "NOT_FOUND",
"message": "Resource not found"
}
}{
"success": false,
"error": {
"code": "NOT_FOUND",
"message": "Resource not found"
}
}{
"success": false,
"error": {
"code": "NOT_FOUND",
"message": "Resource not found"
}
}Set agent subscription price
Creates or updates the Stripe Product + Price for paid marketplace access. Requires an active developer registration when monthlyPriceUsd > 0 (Stripe Connect is not required — creator payouts settle via wallet claim). A FREE agent’s first switch to a paid price takes effect immediately for new subscribers, but existing subscribers keep free access and get a one-time notice (in-app + email) until a system-computed effective date, after which they must complete Stripe checkout to keep using the agent — see effectiveDate in the response.
curl --request POST \
--url https://mcp.echozero.app/api/v1/agents/{id}/subscription-price \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--header 'x-signature: <x-signature>' \
--header 'x-timestamp: <x-timestamp>' \
--data '
{
"monthlyPriceUsd": 29.99
}
'import requests
url = "https://mcp.echozero.app/api/v1/agents/{id}/subscription-price"
payload = { "monthlyPriceUsd": 29.99 }
headers = {
"x-signature": "<x-signature>",
"x-timestamp": "<x-timestamp>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'x-signature': '<x-signature>',
'x-timestamp': '<x-timestamp>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({monthlyPriceUsd: 29.99})
};
fetch('https://mcp.echozero.app/api/v1/agents/{id}/subscription-price', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));const options = {
method: 'POST',
headers: {
'x-signature': '<x-signature>',
'x-timestamp': '<x-timestamp>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({monthlyPriceUsd: 29.99})
};
fetch('https://mcp.echozero.app/api/v1/agents/{id}/subscription-price', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://mcp.echozero.app/api/v1/agents/{id}/subscription-price"
payload := strings.NewReader("{\n \"monthlyPriceUsd\": 29.99\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("x-signature", "<x-signature>")
req.Header.Add("x-timestamp", "<x-timestamp>")
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))
}{
"success": true,
"data": {
"agentId": "<string>",
"monthlyPriceUsd": 123,
"stripeProductId": "<string>",
"stripePriceId": "<string>",
"effectiveDate": "<string>",
"scheduledPriceChangeId": "<string>"
}
}{
"success": false,
"error": {
"code": "NOT_FOUND",
"message": "Resource not found"
}
}{
"success": false,
"error": {
"code": "NOT_FOUND",
"message": "Resource not found"
}
}{
"success": false,
"error": {
"code": "NOT_FOUND",
"message": "Resource not found"
}
}Authorizations
User JWT access token issued by POST /api/auth/verify or POST /api/auth/social/verify. Routes that accept both auth modes declare api-key and bearer-jwt security schemes.
Headers
Required for API-key authenticated requests. HMAC-SHA256(secretKey, timestamp + METHOD + path + body) as lowercase hex. Omit only for JWT/OAuth session tokens or public routes.
Required with x-signature. Epoch milliseconds; rejected if drift exceeds 5 minutes. Omit only for JWT/OAuth session tokens or public routes.
Path Parameters
Body
Monthly subscription price in USD (0 = free tier)
29.99