Execute HTTPS requests reliably with automatic retries for rate limits, temporary server f
Execute HTTPS requests reliably with automatic retries for rate limits, temporary server failures, network errors and timeouts. One $0.02 USDC payment creates one durable job with up to 8 attempts and a 24 hour lifetime.
20000 (raw units)
price
3
calls / 30d
2
unique payers
2026-08-25
updated
Provider
retry.exende.dev · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x9d2526Fa73fcb300B78075c4446Ec0B306f1a3f9",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "20000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"callback_secret": "client-generated-secret-with-at-least-32-characters",
"callback_url": "https://agent.example.com/retry-complete",
"request": {
"headers": {},
"method": "GET",
"url": "https://api.example.com/data"
},
"retry": {
"initial_delay_seconds": 5,
"max_attempts": 8,
"max_delay_seconds": 300,
"strategy": "exponential"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"attempts": 0,
"created_at": "2026-08-24T12:00:00.000Z",
"id": "retry_0123456789abcdef0123456789abcdef",
"max_attempts": 8,
"next_attempt_at": "2026-08-24T12:00:00.000Z",
"read_token": "ex_retry_read_REDACTED",
"status": "pending",
"status_url": "https://retry.exende.dev/v1/retries/retry_0123456789abcdef0123456789abcdef"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"callback_secret": {
"description": "Client-generated HMAC-SHA256 secret. Required with callback_url, encrypted at rest, and never returned.",
"maxLength": 512,
"minLength": 32,
"type": "string"
},
"callback_url": {
"description": "Optional HTTPS endpoint for one signed terminal callback delivery workflow. Requires callback_secret.",
"format": "uri",
"type": "string"
},
"request": {
"additionalProperties": false,
"properties": {
"body": {
"description": "Optional JSON-compatible outbound request body. GET bodies are not accepted."
},
"headers": {
"additionalProperties": {
"type": "string"
},
"maxProperties": 32,
"type": "object"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE"
],
"type": "string"
},
"url": {
"description": "Public HTTPS destination for the durable request.",
"format": "uri",
"type": "string"
}
},
"required": [
"method",
"url"
],
"type": "object"
},
"retry": {
"additionalProperties": false,
"properties": {
"initial_delay_seconds": {
"default": 5,
"maximum": 3600,
"minimum": 2,
"type": "integer"
},
"max_attempts": {
"default": 8,
"description": "Included outbound attempts for the $0.02 paid job.",
"maximum": 8,
"minimum": 1,
"type": "integer"
},
"max_delay_seconds": {
"default": 300,
"maximum": 3600,
"minimum": 2,
"type": "integer"
},
"strategy": {
"default": "exponential",
"enum": [
"fixed",
"exponential"
],
"type": "string"
}
},
"type": "object"
},
"retry_status_codes": {
"items": {
"maximum": 599,
"minimum": 100,
"type": "integer"
},
"maxItems": 100,
"type": "array"
},
"success_codes": {
"items": {
"maximum": 599,
"minimum": 100,
"type": "integer"
},
"maxItems": 100,
"minItems": 1,
"type": "array"
}
},
"required": [
"request"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"attempts": {
"const": 0,
"type": "integer"
},
"created_at": {
"format": "date-time",
"type": "string"
},
"id": {
"pattern": "^retry_[a-f0-9]{32}$",
"type": "string"
},
"max_attempts": {
"maximum": 8,
"minimum": 1,
"type": "integer"
},
"next_attempt_at": {
"format": "date-time",
"type": "string"
},
"read_token": {
"description": "Bearer capability for status and attempt history. Treat as secret.",
"type": "string"
},
"status": {
"const": "pending",
"type": "string"
},
"status_url": {
"format": "uri",
"type": "string"
}
},
"required": [
"id",
"status",
"attempts",
"max_attempts",
"created_at",
"next_attempt_at",
"status_url",
"read_token"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "exende_retry",
"s": [
"cdp_sdk_server"
]
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"maxItems": 11,
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
},
"eip2612GasSponsoring": {},
"erc20ApprovalGasSponsoring": {},
"payment-identifier": {
"info": {
"required": true
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"id": {
"maxLength": 128,
"minLength": 16,
"pattern": "^[a-zA-Z0-9_-]+$",
"type": "string"
},
"required": {
"type": "boolean"
}
},
"required": [
"required"
],
"type": "object"
}
}
}Use it
curl
curl "https://retry.exende.dev/v1/retries" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://retry.exende.dev/v1/retries");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://retry.exende.dev/v1/retries")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/8481.json, and this resource appears in /discovery/resources and /discovery/search.