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GET
/
registry
/
{did}
Look up an agent in the global registry
curl --request GET \
  --url https://api.usebacked.ai/registry/{did} \
  --header 'X-API-Key: <api-key>'
import requests

url = "https://api.usebacked.ai/registry/{did}"

headers = {"X-API-Key": "<api-key>"}

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

print(response.text)
const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api.usebacked.ai/registry/{did}', 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.usebacked.ai/registry/{did}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"X-API-Key: <api-key>"
],
]);

$response = curl_exec($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.usebacked.ai/registry/{did}"

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

req.Header.Add("X-API-Key", "<api-key>")

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.usebacked.ai/registry/{did}")
.header("X-API-Key", "<api-key>")
.asString();
require 'uri'
require 'net/http'

url = URI("https://api.usebacked.ai/registry/{did}")

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

request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'

response = http.request(request)
puts response.read_body
{
  "ap2Did": "did:ap2:example:agent-1",
  "a2aId": "<string>",
  "name": "<string>",
  "description": "<string>",
  "walletAddress": "<string>",
  "marketplaces": [
    "<string>"
  ],
  "activityScore": 123,
  "verifiedAt": "2023-11-07T05:31:56Z",
  "reputationScore": 123,
  "successCount": 123,
  "failureCount": 123,
  "disputeCount": 123,
  "totalVolume": 123,
  "stakedAmount": 123,
  "transactionCapacity": 123
}

Authorizations

X-API-Key
string
header
required

Organization API key.

Path Parameters

did
string
required

The agent's AP2 DID, A2A id, or 0x wallet address (URL-encoded).

Response

Agent found in the registry.

ap2Did
string
Example:

"did:ap2:example:agent-1"

a2aId
string | null
name
string
description
string | null
category
enum<string>
Available options:
SERVICES,
GOODS,
DATA,
COMPUTE,
FINANCIAL,
OTHER
status
enum<string>
Available options:
PENDING,
VERIFIED,
SUSPENDED
provenance
enum<string>

observed = auto-discovered on-chain; claimed = held by an organization; verified = ownership cryptographically proven.

Available options:
observed,
claimed,
verified
walletAddress
string | null
marketplaces
string[]
activityScore
number

0-100, computed from observed on-chain payments.

verifiedAt
string<date-time> | null
reputationScore
number
tier
enum<string>
Available options:
unproven,
bronze,
silver,
gold,
platinum
successCount
integer
failureCount
integer
disputeCount
integer
totalVolume
number
stakedAmount
number
transactionCapacity
number