Get a trader grade proven visible at a past instant
curl --request GET \
--url https://api.0xinsider.com/api/v1/trader/{address}/grade-at \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.0xinsider.com/api/v1/trader/{address}/grade-at"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.0xinsider.com/api/v1/trader/{address}/grade-at', 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.0xinsider.com/api/v1/trader/{address}/grade-at",
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>"
],
]);
$response = curl_exec($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.0xinsider.com/api/v1/trader/{address}/grade-at"
req, _ := http.NewRequest("GET", url, nil)
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.0xinsider.com/api/v1/trader/{address}/grade-at")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.0xinsider.com/api/v1/trader/{address}/grade-at")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"object": "trader_grade_at",
"data": {
"id": "trd_0xabc1230000000000000000000000000000000abc",
"address": "0xabc1230000000000000000000000000000000abc",
"as_of": "2026-09-18T12:00:00Z",
"status": "unknown",
"grade": null,
"available_from": "2026-09-19T23:00:56Z",
"observation": null
},
"meta": {
"request_id": "req_example",
"cached": false,
"cost": 1
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}Traders
Trader grade at a past time
Get the wallet grade that was confirmed visible at a past decision time.
GET
/
api
/
v1
/
trader
/
{address}
/
grade-at
Get a trader grade proven visible at a past instant
curl --request GET \
--url https://api.0xinsider.com/api/v1/trader/{address}/grade-at \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.0xinsider.com/api/v1/trader/{address}/grade-at"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.0xinsider.com/api/v1/trader/{address}/grade-at', 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.0xinsider.com/api/v1/trader/{address}/grade-at",
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>"
],
]);
$response = curl_exec($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.0xinsider.com/api/v1/trader/{address}/grade-at"
req, _ := http.NewRequest("GET", url, nil)
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.0xinsider.com/api/v1/trader/{address}/grade-at")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.0xinsider.com/api/v1/trader/{address}/grade-at")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"object": "trader_grade_at",
"data": {
"id": "trd_0xabc1230000000000000000000000000000000abc",
"address": "0xabc1230000000000000000000000000000000abc",
"as_of": "2026-09-18T12:00:00Z",
"status": "unknown",
"grade": null,
"available_from": "2026-09-19T23:00:56Z",
"observation": null
},
"meta": {
"request_id": "req_example",
"cached": false,
"cost": 1
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
"category_skill_source": "live",
"category_skill_model_version": "<string>",
"category_skill_taxonomy_version": "<string>",
"category_skill_platform": "polymarket",
"category_skill_scope": "observed_goldsky_primary_taker_fill",
"category_skill_source_coverage": "partial_whale_threshold_fills",
"category_skill_observation_started_at": "2023-11-07T05:31:56Z",
"category_skill_model_operationally_degraded": true,
"category_skill_status_counts": {
"live": 1,
"insufficient": 1,
"stale": 1,
"unknown": 1,
"degraded": 1
},
"category_skill_base_payload_hash": "<string>",
"category_skill_enriched_base_payload_hash": "<string>"
}
}{
"object": "error",
"error": {
"code": "bad_request",
"message": "<string>",
"doc_url": "<string>",
"param": "<string>",
"retry_at": "2023-11-07T05:31:56Z",
"freshness": {
"max_age_s": 1,
"data_quality_status": "fresh",
"actual_age_s": 1,
"as_of": "2023-11-07T05:31:56Z"
},
"reason": "cursor_expired"
},
"meta": {
"request_id": "<string>",
"cached": true,
"cost": 123,
"cache_age_s": 123,
"ranking_generation": 123,
"ranking_as_of": "2023-11-07T05:31:56Z",
"directional_source": "live",
"ranking_source": "live",
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}Use this endpoint to select wallets in a backtest using the grades available at the decision time. A result reports whether the wallet was graded, ungraded, or unknown at that moment.
Trader and Leaderboard return current grades, which can introduce future information into a historical selection.
For a point-in-time selection, query each candidate at the event timestamp and retain only
Parameters
| Parameter | Meaning |
|---|---|
address | Supply a wallet address, known username, or trader ID. |
as_of | Supply the past decision time as an RFC 3339 timestamp. A future time returns 400. |
Key response fields
| Field | Meaning |
|---|---|
status | graded means a grade is proven. ungraded means the wallet was recorded without a grade. unknown means its past grade cannot be proven. |
grade | Use this only when status is graded. |
available_from | This is the wallet’s first confirmed observation. Earlier times remain unknown. |
observation.id | This identifies the immutable row that supports a known result. |
observation.previous_observation_id | This links to the prior retained row, if any. A changed grade does not prove a correction reason. |
observation.observed_at | This is the lower bound when the grade writer began the change. It is not an exact publication time. |
observation.published_by | This is the later time by which the change was confirmed visible. It is not an exact commit time. |
observation.model_version and model_build_sha | These identify the model family and build the writer recorded. They are null for older or unproven observations. |
observation.source_observed_by | This bounds when the grading pass read its inputs. It does not prove every upstream input was fresh. |
Example
curl -H "Authorization: Bearer $OXINSIDER_API_KEY" \
"https://api.0xinsider.com/api/v1/trader/swisstony/grade-at?as_of=2026-09-21T12%3A00%3A00Z"
graded results. Store the observation ID and visibility bounds with the selection. If a later query returns another ID, follow previous_observation_id to inspect the earlier grade; do not replace the earlier selection.
What it does not return
Ifstatus is unknown, exclude that grade from historical selection. Fills and P&L cannot recover what grade was published at the time. This route cannot explain why a revision occurred or fill in model metadata that was never recorded. An unknown wallet returns 404.
Caching
A successful response has anETag. Send If-None-Match to receive 304 when the response has not changed.Authorizations
bearerAuthoauth2
Legacy default or named integration API key, or OAuth 2.1 access token, in the Authorization header as Bearer oxi_sk_live_... or Bearer oxi_at_.... Default keys retain full access; integration keys are limited to their approved read, webhooks, export and usage scopes and expire within 90 days. All credentials share the owner's account limits. Data calls require an active Pro subscription and return live data. A 401 carries WWW-Authenticate: Bearer resource_metadata="https://api.0xinsider.com/.well-known/oauth-protected-resource" (RFC 6750 section 3, RFC 9728).
Headers
Opt into strict query-name validation. The default is compatible: unknown names are ignored and reported in X-Query-Ignored. With strict, an unknown name returns 400 bad_request with error.reason unknown_query_parameter before the handler runs, including when its percent escape is incomplete.
Available options:
strict Conditional GET validator from a previous ETag. Matching values return 304 Not Modified with an empty body.
Path Parameters
Wallet address (0x...), username, or trd_-prefixed trader id.
Query Parameters
RFC3339 instant whose historically visible grade is requested. Future instants are refused. Send the trade or decision time, not the ranking date.
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