curl -X POST "https://api.blockdb.io/v1/evm/arb/paths" \
-H "Authorization: Bearer $BLOCKDB_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"chain_id": 1,
"from_block": 21000000,
"to_block": 21001000,
"limit": 25
}'
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
int main(void) {
CURL *curl = curl_easy_init();
if (!curl) return 1;
const char *token = getenv("BLOCKDB_API_KEY");
char auth_header[256];
snprintf(auth_header, sizeof(auth_header), "Authorization: Bearer %s", token ? token : "");
const char *payload = "{\"chain_id\":1,\"from_block\":21000000,\"to_block\":21001000,\"limit\":25}";
struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, auth_header);
headers = curl_slist_append(headers, "Content-Type: application/json");
curl_easy_setopt(curl, CURLOPT_URL, "https://api.blockdb.io/v1/evm/arb/paths");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload);
CURLcode res = curl_easy_perform(curl);
curl_slist_free_all(headers);
curl_easy_cleanup(curl);
return res == CURLE_OK ? 0 : 1;
}
using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
class Program
{
static async Task Main()
{
using var client = new HttpClient();
client.DefaultRequestHeaders.Authorization =
new AuthenticationHeaderValue("Bearer", Environment.GetEnvironmentVariable("BLOCKDB_API_KEY"));
var payload = new StringContent(
"{\"chain_id\":1,\"from_block\":21000000,\"to_block\":21001000,\"limit\":25}",
Encoding.UTF8,
"application/json"
);
var response = await client.PostAsync("https://api.blockdb.io/v1/evm/arb/paths", payload);
response.EnsureSuccessStatusCode();
var body = await response.Content.ReadAsStringAsync();
Console.WriteLine(body);
}
}
import os
import requests
response = requests.post(
"https://api.blockdb.io/v1/evm/arb/paths",
headers={
"Authorization": f"Bearer {os.getenv('BLOCKDB_API_KEY')}",
"Content-Type": "application/json"
},
json={"chain_id": 1, "from_block": 21000000, "to_block": 21001000, "limit": 25}
)
data = response.json()
print(data)
const response = await fetch("https://api.blockdb.io/v1/evm/arb/paths", {
method: "POST",
headers: {
"Authorization": `Bearer ${process.env.BLOCKDB_API_KEY}`,
"Content-Type": "application/json"
},
body: JSON.stringify({
"chain_id": 1,
"from_block": 21000000,
"to_block": 21001000,
"limit": 25
})
});
const data = await response.json();
console.log(data);
package main
import (
"fmt"
"net/http"
"os"
"strings"
)
func main() {
payload := strings.NewReader(`{
"chain_id": 1,
"from_block": 21000000,
"to_block": 21001000,
"limit": 25
}`)
req, _ := http.NewRequest("POST", "https://api.blockdb.io/v1/evm/arb/paths", payload)
req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", os.Getenv("BLOCKDB_API_KEY")))
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, _ := client.Do(req)
defer resp.Body.Close()
}
{
"meta": {
"chain_id": 1,
"request_window": {
"from_block": 21000000,
"to_block": 21001000,
"from_timestamp": null,
"to_timestamp": null
},
"resolved_window": {
"from_block": 21000000,
"to_block": 21001000,
"from_timestamp": null,
"to_timestamp": null
},
"filters": {
"path_ids": [],
"limit": 25,
"cursor": null
}
},
"data": [
{
"path_id": "a1b2c3d4e5f6789012345678901234567890abcd1234567890abcdef12345678",
"block_number": 21000500,
"block_time": "2025-11-11T12:00:00Z",
"tx_index": 3,
"log_index": 12,
"pool_uids": [
"00000000000000000000000088e6a0c2ddd26feeb64f039a2c41296fcb3f5640",
"00000000000000000000000011b815acc87f6f89741a636d1ebfcea40876f8f0"
],
"token_cycle": [
"c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
"a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
"c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
],
"_tracing_id": "080100000000000000000000000000007401",
"_parent_tracing_ids": ["030100000000000000000000000000007401"],
"_created_at": "2025-11-11T12:00:05Z",
"_updated_at": "2025-11-11T12:00:05Z"
}
],
"cursor": null,
"page_count": 1
}
{
"error": {
"code": "BAD_REQUEST",
"http_status": 400,
"message": "The request contains invalid or missing parameters.",
"hint": "Validate all required parameters against the endpoint specification before retrying.",
"severity": "error",
"retryable": false,
"details": {
"invalid_parameters": [
{
"name": "chain_id",
"location": "query",
"reason": "missing",
"expected": "positive integer, e.g. 1"
},
{
"name": "from_timestamp",
"location": "query",
"reason": "invalid_format",
"expected": "ISO-8601 UTC timestamp, e.g. 2025-11-11T00:00:00Z"
}
]
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/home"
}
}
{
"error": {
"code": "UNAUTHORIZED",
"http_status": 401,
"message": "Invalid or missing API key.",
"hint": "Ensure you send 'Authorization: Bearer <API_KEY>' in every request to this endpoint.",
"severity": "error",
"retryable": false,
"details": {
"auth_scheme": "bearer",
"expected_header": "Authorization: Bearer <API_KEY>",
"provided_header": "Authorization: <REDACTED_OR_MISSING>",
"token_status": "invalid_or_missing",
"recommendation": "Regenerate the API key if you suspect it is expired or compromised."
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/authorization"
}
}
{
"error": {
"code": "FORBIDDEN",
"http_status": 403,
"message": "Your API key does not have permission to access this endpoint.",
"hint": "Upgrade your subscription tier or request additional access.",
"severity": "warning",
"retryable": false,
"details": {
"required_plan": "production",
"your_plan": null,
"contact": "support@blockdb.io",
"recommendation": "Contact BlockDB Support Team via email support@blockdb.io."
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "NOT_FOUND",
"http_status": 404,
"message": "The requested resource does not exist.",
"hint": "Verify the API endpoint",
"severity": "warning",
"retryable": false,
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "PAYLOAD_TOO_LARGE",
"http_status": 413,
"message": "The requested response exceeds the maximum allowed size of 10 MB.",
"hint": "Reduce the limit, narrow the block or time window, or apply additional filters before retrying.",
"details": {
"max_allowed_bytes": 10485760,
"estimated_response_bytes": 15360000,
"recommended_actions": [
"Decrease the 'limit' parameter value",
"Shorten the block range or time window",
"Filter by fewer pools or contract addresses"
]
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/pagination-and-limits"
}
}
{
"error": {
"code": "CHAIN_NOT_SUPPORTED",
"http_status": 422,
"message": "chain_id=137 is not supported.",
"hint": "Use a supported chain_id. Consult the documentation for the list of available chains.",
"severity": "error",
"retryable": false,
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "RATE_LIMIT_EXCEEDED",
"http_status": 429,
"message": "You have exceeded the allowed request rate.",
"hint": "Introduce client-side throttling or exponential backoff and respect the retry_after_seconds value.",
"details": {
"limit_rps": 1000,
"current_estimated_rps": 73,
"retry_after_seconds": 2,
"limit_scope": "api_key",
"limit_window_seconds": 1
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/rate-limiting"
}
}
{
"error": {
"code": "INTERNAL_SERVER_ERROR",
"http_status": 500,
"message": "An unexpected server error occurred.",
"hint": "This error is not caused by your request. You may retry after a short delay.",
"severity": "critical",
"retryable": true,
"details": {
"incident_id": "INC-2025-11-11-123456",
"temporary_issue": true,
"expected_recovery_seconds": 5
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "SERVICE_UNAVAILABLE",
"http_status": 503,
"message": "The service is temporarily unable to handle the request.",
"hint": "The database connection pool is briefly saturated. Retry after a short delay.",
"severity": "warning",
"retryable": true,
"details": null,
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
Arbitrage
Arbitrage Paths
Query arbitrage path definitions: pool UID cycle and token cycle per path_id (dataset 0801).
POST
/
v1
/
evm
/
arb
/
paths
curl -X POST "https://api.blockdb.io/v1/evm/arb/paths" \
-H "Authorization: Bearer $BLOCKDB_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"chain_id": 1,
"from_block": 21000000,
"to_block": 21001000,
"limit": 25
}'
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
int main(void) {
CURL *curl = curl_easy_init();
if (!curl) return 1;
const char *token = getenv("BLOCKDB_API_KEY");
char auth_header[256];
snprintf(auth_header, sizeof(auth_header), "Authorization: Bearer %s", token ? token : "");
const char *payload = "{\"chain_id\":1,\"from_block\":21000000,\"to_block\":21001000,\"limit\":25}";
struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, auth_header);
headers = curl_slist_append(headers, "Content-Type: application/json");
curl_easy_setopt(curl, CURLOPT_URL, "https://api.blockdb.io/v1/evm/arb/paths");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload);
CURLcode res = curl_easy_perform(curl);
curl_slist_free_all(headers);
curl_easy_cleanup(curl);
return res == CURLE_OK ? 0 : 1;
}
using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
class Program
{
static async Task Main()
{
using var client = new HttpClient();
client.DefaultRequestHeaders.Authorization =
new AuthenticationHeaderValue("Bearer", Environment.GetEnvironmentVariable("BLOCKDB_API_KEY"));
var payload = new StringContent(
"{\"chain_id\":1,\"from_block\":21000000,\"to_block\":21001000,\"limit\":25}",
Encoding.UTF8,
"application/json"
);
var response = await client.PostAsync("https://api.blockdb.io/v1/evm/arb/paths", payload);
response.EnsureSuccessStatusCode();
var body = await response.Content.ReadAsStringAsync();
Console.WriteLine(body);
}
}
import os
import requests
response = requests.post(
"https://api.blockdb.io/v1/evm/arb/paths",
headers={
"Authorization": f"Bearer {os.getenv('BLOCKDB_API_KEY')}",
"Content-Type": "application/json"
},
json={"chain_id": 1, "from_block": 21000000, "to_block": 21001000, "limit": 25}
)
data = response.json()
print(data)
const response = await fetch("https://api.blockdb.io/v1/evm/arb/paths", {
method: "POST",
headers: {
"Authorization": `Bearer ${process.env.BLOCKDB_API_KEY}`,
"Content-Type": "application/json"
},
body: JSON.stringify({
"chain_id": 1,
"from_block": 21000000,
"to_block": 21001000,
"limit": 25
})
});
const data = await response.json();
console.log(data);
package main
import (
"fmt"
"net/http"
"os"
"strings"
)
func main() {
payload := strings.NewReader(`{
"chain_id": 1,
"from_block": 21000000,
"to_block": 21001000,
"limit": 25
}`)
req, _ := http.NewRequest("POST", "https://api.blockdb.io/v1/evm/arb/paths", payload)
req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", os.Getenv("BLOCKDB_API_KEY")))
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, _ := client.Do(req)
defer resp.Body.Close()
}
{
"meta": {
"chain_id": 1,
"request_window": {
"from_block": 21000000,
"to_block": 21001000,
"from_timestamp": null,
"to_timestamp": null
},
"resolved_window": {
"from_block": 21000000,
"to_block": 21001000,
"from_timestamp": null,
"to_timestamp": null
},
"filters": {
"path_ids": [],
"limit": 25,
"cursor": null
}
},
"data": [
{
"path_id": "a1b2c3d4e5f6789012345678901234567890abcd1234567890abcdef12345678",
"block_number": 21000500,
"block_time": "2025-11-11T12:00:00Z",
"tx_index": 3,
"log_index": 12,
"pool_uids": [
"00000000000000000000000088e6a0c2ddd26feeb64f039a2c41296fcb3f5640",
"00000000000000000000000011b815acc87f6f89741a636d1ebfcea40876f8f0"
],
"token_cycle": [
"c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
"a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
"c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
],
"_tracing_id": "080100000000000000000000000000007401",
"_parent_tracing_ids": ["030100000000000000000000000000007401"],
"_created_at": "2025-11-11T12:00:05Z",
"_updated_at": "2025-11-11T12:00:05Z"
}
],
"cursor": null,
"page_count": 1
}
{
"error": {
"code": "BAD_REQUEST",
"http_status": 400,
"message": "The request contains invalid or missing parameters.",
"hint": "Validate all required parameters against the endpoint specification before retrying.",
"severity": "error",
"retryable": false,
"details": {
"invalid_parameters": [
{
"name": "chain_id",
"location": "query",
"reason": "missing",
"expected": "positive integer, e.g. 1"
},
{
"name": "from_timestamp",
"location": "query",
"reason": "invalid_format",
"expected": "ISO-8601 UTC timestamp, e.g. 2025-11-11T00:00:00Z"
}
]
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/home"
}
}
{
"error": {
"code": "UNAUTHORIZED",
"http_status": 401,
"message": "Invalid or missing API key.",
"hint": "Ensure you send 'Authorization: Bearer <API_KEY>' in every request to this endpoint.",
"severity": "error",
"retryable": false,
"details": {
"auth_scheme": "bearer",
"expected_header": "Authorization: Bearer <API_KEY>",
"provided_header": "Authorization: <REDACTED_OR_MISSING>",
"token_status": "invalid_or_missing",
"recommendation": "Regenerate the API key if you suspect it is expired or compromised."
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/authorization"
}
}
{
"error": {
"code": "FORBIDDEN",
"http_status": 403,
"message": "Your API key does not have permission to access this endpoint.",
"hint": "Upgrade your subscription tier or request additional access.",
"severity": "warning",
"retryable": false,
"details": {
"required_plan": "production",
"your_plan": null,
"contact": "support@blockdb.io",
"recommendation": "Contact BlockDB Support Team via email support@blockdb.io."
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "NOT_FOUND",
"http_status": 404,
"message": "The requested resource does not exist.",
"hint": "Verify the API endpoint",
"severity": "warning",
"retryable": false,
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "PAYLOAD_TOO_LARGE",
"http_status": 413,
"message": "The requested response exceeds the maximum allowed size of 10 MB.",
"hint": "Reduce the limit, narrow the block or time window, or apply additional filters before retrying.",
"details": {
"max_allowed_bytes": 10485760,
"estimated_response_bytes": 15360000,
"recommended_actions": [
"Decrease the 'limit' parameter value",
"Shorten the block range or time window",
"Filter by fewer pools or contract addresses"
]
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/pagination-and-limits"
}
}
{
"error": {
"code": "CHAIN_NOT_SUPPORTED",
"http_status": 422,
"message": "chain_id=137 is not supported.",
"hint": "Use a supported chain_id. Consult the documentation for the list of available chains.",
"severity": "error",
"retryable": false,
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "RATE_LIMIT_EXCEEDED",
"http_status": 429,
"message": "You have exceeded the allowed request rate.",
"hint": "Introduce client-side throttling or exponential backoff and respect the retry_after_seconds value.",
"details": {
"limit_rps": 1000,
"current_estimated_rps": 73,
"retry_after_seconds": 2,
"limit_scope": "api_key",
"limit_window_seconds": 1
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/rate-limiting"
}
}
{
"error": {
"code": "INTERNAL_SERVER_ERROR",
"http_status": 500,
"message": "An unexpected server error occurred.",
"hint": "This error is not caused by your request. You may retry after a short delay.",
"severity": "critical",
"retryable": true,
"details": {
"incident_id": "INC-2025-11-11-123456",
"temporary_issue": true,
"expected_recovery_seconds": 5
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "SERVICE_UNAVAILABLE",
"http_status": 503,
"message": "The service is temporarily unable to handle the request.",
"hint": "The database connection pool is briefly saturated. Retry after a short delay.",
"severity": "warning",
"retryable": true,
"details": null,
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
Not publicly available: This dataset is not included in the standard public API. Request access via a custom plan — contact support@blockdb.io.
Overview
- Dataset ID:
0801 - Arbitrage Paths - Description: Returns arbitrage path rows. Binary fields are returned as hex strings (no
0xprefix) in JSON. - CSV Sample: Download
- JSON Sample: Download
Parameters
Range filters (mutually exclusive)
number
Starting block number (inclusive). Use with
to_block.number
Ending block number (inclusive). Use with
from_block.string
Starting timestamp (ISO-8601). Use with
to_timestamp.string
Ending timestamp (ISO-8601). Use with
from_timestamp.Scoping rule: Provide exactly one of:
- Block range —
from_blockandto_block - Time range —
from_timestampandto_timestamp - Direct selectors — presented below
Direct selectors
string[]
Filter by 32-byte
path_id values (hex string, no 0x prefix).Pagination
number
default:"250"
Recommended default
250; maximum 1000 to stay under ~10 MB responses.string
Opaque pagination cursor from a previous response.
Response fields
Meta
object
Echo of request metadata applied to the response.
number
EVM chain ID echoed from the request.
object
Pure echo of the window you sent (
from_block/to_block/from_timestamp/to_timestamp); unset bounds are null.object | null
The concrete window the query actually executed against, after resolving the request. For a block range on a time-bucketed endpoint (OHLC/VWAP/VWAP-aggregate/fiat VWAP),
from_timestamp/to_timestamp hold the resolved timestamp window (and from_block/to_block echo your request). For a time range on a block-keyed endpoint, from_block/to_block hold the resolved block range (and the timestamps echo your request). null for selector-only requests (no window). No extra database work is done — these are the values the query already computed.number | null
Resolved/echoed start block of the executed window.
number | null
Resolved/echoed end block of the executed window.
string | null
Resolved/echoed start timestamp (ISO-8601) of the executed window.
string | null
Resolved/echoed end timestamp (ISO-8601) of the executed window.
object
Filter parameters echoed from the request (
path_ids, pagination, etc.).Data
object[]
Path definition records matching the request.
string
32-byte path identifier (hex, no
0x).number
Block where the path was first observed.
string
UTC timestamp of that block.
number
Transaction index within the block.
number
Log index within the transaction.
string[]
Pool UIDs in canonical cycle order (hex, 32-byte each).
string[]
Token addresses in canonical cycle order (hex, 20-byte each), e.g. (A,B,A) or (A,B,C,A).
string
Row tracing id (hex, no
0x).string[]
Parent tracing ids.
string
Record creation timestamp (ISO-8601).
string
Last update timestamp (ISO-8601).
Envelope
string | null
Pagination cursor.
number
Number of rows in
data.curl -X POST "https://api.blockdb.io/v1/evm/arb/paths" \
-H "Authorization: Bearer $BLOCKDB_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"chain_id": 1,
"from_block": 21000000,
"to_block": 21001000,
"limit": 25
}'
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
int main(void) {
CURL *curl = curl_easy_init();
if (!curl) return 1;
const char *token = getenv("BLOCKDB_API_KEY");
char auth_header[256];
snprintf(auth_header, sizeof(auth_header), "Authorization: Bearer %s", token ? token : "");
const char *payload = "{\"chain_id\":1,\"from_block\":21000000,\"to_block\":21001000,\"limit\":25}";
struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, auth_header);
headers = curl_slist_append(headers, "Content-Type: application/json");
curl_easy_setopt(curl, CURLOPT_URL, "https://api.blockdb.io/v1/evm/arb/paths");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload);
CURLcode res = curl_easy_perform(curl);
curl_slist_free_all(headers);
curl_easy_cleanup(curl);
return res == CURLE_OK ? 0 : 1;
}
using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
class Program
{
static async Task Main()
{
using var client = new HttpClient();
client.DefaultRequestHeaders.Authorization =
new AuthenticationHeaderValue("Bearer", Environment.GetEnvironmentVariable("BLOCKDB_API_KEY"));
var payload = new StringContent(
"{\"chain_id\":1,\"from_block\":21000000,\"to_block\":21001000,\"limit\":25}",
Encoding.UTF8,
"application/json"
);
var response = await client.PostAsync("https://api.blockdb.io/v1/evm/arb/paths", payload);
response.EnsureSuccessStatusCode();
var body = await response.Content.ReadAsStringAsync();
Console.WriteLine(body);
}
}
import os
import requests
response = requests.post(
"https://api.blockdb.io/v1/evm/arb/paths",
headers={
"Authorization": f"Bearer {os.getenv('BLOCKDB_API_KEY')}",
"Content-Type": "application/json"
},
json={"chain_id": 1, "from_block": 21000000, "to_block": 21001000, "limit": 25}
)
data = response.json()
print(data)
const response = await fetch("https://api.blockdb.io/v1/evm/arb/paths", {
method: "POST",
headers: {
"Authorization": `Bearer ${process.env.BLOCKDB_API_KEY}`,
"Content-Type": "application/json"
},
body: JSON.stringify({
"chain_id": 1,
"from_block": 21000000,
"to_block": 21001000,
"limit": 25
})
});
const data = await response.json();
console.log(data);
package main
import (
"fmt"
"net/http"
"os"
"strings"
)
func main() {
payload := strings.NewReader(`{
"chain_id": 1,
"from_block": 21000000,
"to_block": 21001000,
"limit": 25
}`)
req, _ := http.NewRequest("POST", "https://api.blockdb.io/v1/evm/arb/paths", payload)
req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", os.Getenv("BLOCKDB_API_KEY")))
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, _ := client.Do(req)
defer resp.Body.Close()
}
{
"meta": {
"chain_id": 1,
"request_window": {
"from_block": 21000000,
"to_block": 21001000,
"from_timestamp": null,
"to_timestamp": null
},
"resolved_window": {
"from_block": 21000000,
"to_block": 21001000,
"from_timestamp": null,
"to_timestamp": null
},
"filters": {
"path_ids": [],
"limit": 25,
"cursor": null
}
},
"data": [
{
"path_id": "a1b2c3d4e5f6789012345678901234567890abcd1234567890abcdef12345678",
"block_number": 21000500,
"block_time": "2025-11-11T12:00:00Z",
"tx_index": 3,
"log_index": 12,
"pool_uids": [
"00000000000000000000000088e6a0c2ddd26feeb64f039a2c41296fcb3f5640",
"00000000000000000000000011b815acc87f6f89741a636d1ebfcea40876f8f0"
],
"token_cycle": [
"c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
"a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
"c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
],
"_tracing_id": "080100000000000000000000000000007401",
"_parent_tracing_ids": ["030100000000000000000000000000007401"],
"_created_at": "2025-11-11T12:00:05Z",
"_updated_at": "2025-11-11T12:00:05Z"
}
],
"cursor": null,
"page_count": 1
}
{
"error": {
"code": "BAD_REQUEST",
"http_status": 400,
"message": "The request contains invalid or missing parameters.",
"hint": "Validate all required parameters against the endpoint specification before retrying.",
"severity": "error",
"retryable": false,
"details": {
"invalid_parameters": [
{
"name": "chain_id",
"location": "query",
"reason": "missing",
"expected": "positive integer, e.g. 1"
},
{
"name": "from_timestamp",
"location": "query",
"reason": "invalid_format",
"expected": "ISO-8601 UTC timestamp, e.g. 2025-11-11T00:00:00Z"
}
]
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/home"
}
}
{
"error": {
"code": "UNAUTHORIZED",
"http_status": 401,
"message": "Invalid or missing API key.",
"hint": "Ensure you send 'Authorization: Bearer <API_KEY>' in every request to this endpoint.",
"severity": "error",
"retryable": false,
"details": {
"auth_scheme": "bearer",
"expected_header": "Authorization: Bearer <API_KEY>",
"provided_header": "Authorization: <REDACTED_OR_MISSING>",
"token_status": "invalid_or_missing",
"recommendation": "Regenerate the API key if you suspect it is expired or compromised."
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/authorization"
}
}
{
"error": {
"code": "FORBIDDEN",
"http_status": 403,
"message": "Your API key does not have permission to access this endpoint.",
"hint": "Upgrade your subscription tier or request additional access.",
"severity": "warning",
"retryable": false,
"details": {
"required_plan": "production",
"your_plan": null,
"contact": "support@blockdb.io",
"recommendation": "Contact BlockDB Support Team via email support@blockdb.io."
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "NOT_FOUND",
"http_status": 404,
"message": "The requested resource does not exist.",
"hint": "Verify the API endpoint",
"severity": "warning",
"retryable": false,
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "PAYLOAD_TOO_LARGE",
"http_status": 413,
"message": "The requested response exceeds the maximum allowed size of 10 MB.",
"hint": "Reduce the limit, narrow the block or time window, or apply additional filters before retrying.",
"details": {
"max_allowed_bytes": 10485760,
"estimated_response_bytes": 15360000,
"recommended_actions": [
"Decrease the 'limit' parameter value",
"Shorten the block range or time window",
"Filter by fewer pools or contract addresses"
]
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/pagination-and-limits"
}
}
{
"error": {
"code": "CHAIN_NOT_SUPPORTED",
"http_status": 422,
"message": "chain_id=137 is not supported.",
"hint": "Use a supported chain_id. Consult the documentation for the list of available chains.",
"severity": "error",
"retryable": false,
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "RATE_LIMIT_EXCEEDED",
"http_status": 429,
"message": "You have exceeded the allowed request rate.",
"hint": "Introduce client-side throttling or exponential backoff and respect the retry_after_seconds value.",
"details": {
"limit_rps": 1000,
"current_estimated_rps": 73,
"retry_after_seconds": 2,
"limit_scope": "api_key",
"limit_window_seconds": 1
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/rate-limiting"
}
}
{
"error": {
"code": "INTERNAL_SERVER_ERROR",
"http_status": 500,
"message": "An unexpected server error occurred.",
"hint": "This error is not caused by your request. You may retry after a short delay.",
"severity": "critical",
"retryable": true,
"details": {
"incident_id": "INC-2025-11-11-123456",
"temporary_issue": true,
"expected_recovery_seconds": 5
},
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
{
"error": {
"code": "SERVICE_UNAVAILABLE",
"http_status": 503,
"message": "The service is temporarily unable to handle the request.",
"hint": "The database connection pool is briefly saturated. Retry after a short delay.",
"severity": "warning",
"retryable": true,
"details": null,
"docs_url": "https://docs.blockdb.io/api-reference/overview/error-codes"
}
}
Last modified on July 19, 2026
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