Does this API call the upstream service or retry for me?

No. You pass the error response you already captured (status, body, optional headers). It returns classification and advisory retry fields only; it does not make outbound HTTP calls or enforce retries.

What body formats are supported?

JSON objects, strings (plain text or HTML/XML snippets), and other JSON-serializable values. Classification uses HTTP status, headers, and payload keywords or structure.

Does it store or log my payloads?

No. The service is fully stateless.

What is canonicalError?

A stable enum-style string such as AUTH_INVALID, RATE_LIMIT_EXCEEDED, VALIDATION_FAILED, RESOURCE_NOT_FOUND, TIMEOUT, UNKNOWN_ERROR, and others—see the taxonomy table on this page.

Is retry guidance mandatory to follow?

No. retryRecommended, retryAfterSeconds, and retryStrategy are advisory. Your application decides whether to retry.

Where are pricing and quotas defined?

On RapidAPI: Basic is free with 100 requests per month; Pro is $9.99/month with 10,000 requests; Ultra is $49.99/month (recommended) with 100,000 requests; Mega is $99.99/month with 250,000 requests. Overage pricing is shown on the live listing.

How do I use recommendedHttpStatus?

It suggests a consistent HTTP status for your own API surface when you proxy or re-wrap upstream errors. You are not required to use it.

One Canonical Error Shape for Every API You Integrate

Send the upstream HTTP status, raw responseBody (JSON, text, HTML, or XML), and optional headers. Get back a stable canonicalError, advisory retry fields, severity, confidence (0–1), provenance, and a log-safe summary—so gateways, SDKs, and observability all speak one taxonomy.

Try API Error Normalization Basic on RapidAPI: 100 requests/month free

Stop maintaining twenty different error parsers. Stripe, Twilio, internal microservices—each with its own JSON shape—map into the same canonical types and retry hints. Your alerts, dashboards, and client SDKs stay consistent.

Real-world use cases

API gateways — Classify upstream failures and derive backoff from Retry-After and rate-limit headers in one schema.
Multi-vendor SDKs — Expose a single error type and retry recommendation to callers.
Observability — Normalize before Datadog, Splunk, or custom metrics so SLAs and alerts use one vocabulary.
Safe retries — Use retryRecommended and retryAfterSeconds as hints; you keep control of execution.
Chaotic payloads — HTML error pages, sparse JSON, or odd field names still route through status + keyword logic.

Why not parse every vendor by hand?

Error shapes and status-code semantics drift constantly
Retry-After and rate-limit headers vary by vendor
Duplicated branches in every service are hard to test

Centralizing interpretation gives you one place to align behavior as integrations grow.

Who this API helps

Backend and platform engineers
Gateway and proxy authors
SDK and client-library maintainers
SRE and observability teams

Before and after

Upstream responses are messy; the normalized output is stable (illustrative).

Upstream (fragment)

{
  "error": "rate_limit_exceeded",
  "msg": "Slow down"
}

Normalized (fragment)

{
  "canonicalError": "RATE_LIMIT_EXCEEDED",
  "retry": {
    "retryRecommended": true,
    "retryAfterSeconds": 60,
    "retryStrategy": "delayed"
  },
  "confidence": 0.9,
  "summary": "…"
}

What the API does

POST /normalize with JSON: required httpStatusCode (0–599) and responseBody (any JSON-serializable value). Optional headers, httpMethod, vendor, requestUrl, clientRetryCount, timestamp. Success is HTTP 200 with the normalized object (or a safe fallback shape if something unexpected occurs).

This service does not call third-party APIs, retry requests, or store payloads. Interpretation is heuristic and advisory—use confidence to gate automation.

Predictable for the same input

The same status, body, and headers produce the same normalized output—suitable for fixtures and regression tests.

Canonical error types (summary)

Examples include AUTH_INVALID, AUTH_EXPIRED, RATE_LIMIT_EXCEEDED, QUOTA_EXCEEDED, VALIDATION_FAILED, RESOURCE_NOT_FOUND, CONFLICT, TIMEOUT, DEPENDENCY_UNAVAILABLE, TEMPORARY_FAILURE, PERMANENT_FAILURE, UNKNOWN_ERROR. See your README or OpenAPI on RapidAPI for the full table with typical HTTP and retry behavior.

Low confidence? Prefer logging and human review over aggressive auto-retry. The API never throws on hostile input; worst case trends toward UNKNOWN_ERROR with conservative retry guidance.

Request & response schema

Endpoint: POST https://api-error-status-normalization.p.rapidapi.com/normalize with Content-Type: application/json, x-rapidapi-key, x-rapidapi-host: api-error-status-normalization.p.rapidapi.com (confirm in your RapidAPI app if the host differs).

View request fields · View success response · View HTTP error responses

Field	Required	Description
`httpStatusCode`	Yes	Number 0–599 from the upstream response.
`responseBody`	Yes	Raw body: object, array, string, number, boolean, or null.
`headers`	No	Flat object of header names to string or string array (e.g. `Retry-After`, `X-RateLimit-Remaining`).
`httpMethod`	No	Original request method hint.
`vendor`	No	Optional label for your logs; not authoritative for classification.
`requestUrl`	No	Optional URL or path hint.
`clientRetryCount`	No	Optional retry count from the client.
`timestamp`	No	ISO string or Unix time hint.

HTTP 200 JSON:

Field	Description
`canonicalError`	Stable taxonomy string.
`recommendedHttpStatus`	Suggested status when re-exposing the error.
`retry`	`retryRecommended`, `retryAfterSeconds`, `retryStrategy` (`immediate` \| `delayed` \| `none`).
`severity`	`temporaryVsPermanent`, `clientVsServer`.
`confidence`	0–1.
`provenance`	`originalStatusCode`, `recommendedHttpStatus`, `interpretationMethod`, optional `extractedVendorHints`.
`summary`	Human-readable, log-safe summary.

HTTP	`error`	Meaning
400	`INVALID_REQUEST`	Body missing or not a JSON object.
400	`INVALID_JSON`	Body is not valid JSON.
400	`MISSING_REQUIRED`	Missing `httpStatusCode` or `responseBody`.
400	`INVALID_HTTP_STATUS`	Status not a finite number in 0–599.
413	`PAYLOAD_TOO_LARGE`	Serialized request exceeds 1MB.

Try it in the playground

Pick a sample or edit JSON, add your RapidAPI key, run, then copy generated code below.

RapidAPI Key (required)

Sample request

Templates load into the editor; change anything before running.

Request body (JSON)

Subscribe on RapidAPI for production keys and plan details.

Get code

Snippets reflect the JSON in the playground. Host: api-error-status-normalization.p.rapidapi.com, path: /normalize.

Integration time: Minutes for any stack that can POST JSON with RapidAPI headers.

Real-world examples

1. After a failed REST call

Capture response.status, parse or stringify the body, forward relevant headers, then call /normalize before logging or retrying.

2. Gateway middleware

On upstream 4xx/5xx, run normalization once and attach canonicalError to your trace or response envelope.

3. Pipelines

Batch error events through the same endpoint so warehouse or SIEM fields align across vendors.

Pricing & tiers (RapidAPI)

Built for teams that need one error taxonomy across many integrations and environments.

Current plans on RapidAPI:

Basic

$0/mo

100 requests/month included

Pro

$9.99/mo

10,000 requests/month included

Popular

Ultra

$49.99/mo

100,000 requests/month included

Mega

$99.99/mo

250,000 requests/month included

Overage and plan changes are governed by the live RapidAPI listing.

What to expect

Valid inputs return 200 with the normalized body. Invalid JSON, missing fields, bad status range, or oversized body return 4xx/413 with error and message. Rare internal issues may still yield 200 with a conservative UNKNOWN_ERROR-style payload.

About this API

Also known as

Error normalization API, HTTP error taxonomy, API failure classifier, retry hint service.

Convert vendor-specific or malformed API error responses into one canonical format suitable for logs, metrics, and client SDKs. Optional headers improve retryAfterSeconds when upstreams send Retry-After or rate-limit metadata.

Frequently asked questions

No. You pass data you already captured. It returns classification and advisory fields only.
JSON values, strings (including HTML), numbers, booleans, arrays, and null—whatever you can put in JSON. Heuristics use status, headers, and payload content.
1MB per request.
No. Stateless processing.
A stable string such as RATE_LIMIT_EXCEEDED or VALIDATION_FAILED—see the taxonomy section and README for the full list.
No. retryRecommended and related fields are hints only.
On RapidAPI: Basic free with 100/month; Pro $9.99/mo with 10,000; Ultra $49.99/mo (popular) with 100,000; Mega $99.99/mo with 250,000—with overage on the listing.
Optional mapping when your API re-wraps upstream errors for your own clients.

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