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API · /mimeencode-api

MIME Encoding API

healthy 4,163 Subscribers

The email and MIME text encodings that general base64/hex toolkits leave out. The quoted-printable endpoint encodes and decodes Quoted-Printable (RFC 2045) — the Content-Transfer-Encoding that keeps mostly-ASCII text readable while escaping everything else as =XX hex, with the soft line-wrapping at 76 columns and trailing-whitespace handling the spec requires. The encoded-word endpoint encodes and decodes RFC 2047 encoded-words — the =?UTF-8?Q?…?= and =?UTF-8?B?…?= form used to carry non-ASCII text in email Subject, From, To and other headers — in either the Q (quoted-printable-style) or B (base64) variant, and decodes any mix of them back to plain text. Everything is UTF-8 and computed locally and deterministically, so it is instant and private. Ideal for building and parsing email (SMTP/IMAP), .eml and MIME tooling, newsletter and transactional-mail systems, and migrating legacy mail data. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. These are the MIME-specific encodings; for base64, base32, hex, URL and HTML entity encoding use a general encoding API.

#quoted-printable #mime #email #rfc2047 #encoding #developer-tools
api.oanor.com/mimeencode-api
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Machine-readable spec so AI agents can integrate this API.

/api/mimeencode-api/openapi.json
/api/mimeencode-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
89 ms
Server probes · 24h
Subscribers
4,163
active
Total calls
33
last 7 days
status Full status page → · 15 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 5,135 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 5,135 calls/month
  • 2 req/sec
  • QP + encoded-word
  • No credit card
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Starter

€6.65 /month

  • 14,650 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 14.65k calls/month
  • 8 req/sec
  • Q + B encoded-words
  • Email support
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Pro

€26.55 /month

  • 197,500 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 197.5k calls/month
  • 20 req/sec
  • Email / SMTP / MIME pipelines
  • Priority support
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Mega

€64.55 /month

  • 1,030,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 1.03M calls/month
  • 50 req/sec
  • Platform scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

File Type Detection API

Detect the true type of a file from its content — its magic bytes / binary signature — not from its name. Send a file by URL or base64 and get back the real extension and MIME type, recognising 100+ binary formats: images (PNG, JPEG, GIF, WebP, AVIF, HEIC), audio and video (MP3, MP4, WAV, FLAC, MKV), archives (ZIP, GZIP, 7z, RAR, TAR), documents (PDF, DOCX, XLSX), fonts and more. Optionally pass a filename to flag a spoofed extension (e.g. a PNG renamed to .txt). Text formats like TXT, CSV, JSON and SVG have no signature and return detected=false. Detection is local — no key, no third-party service. Live, nothing stored. 2 endpoints. Built for secure upload validation, anti-spoofing checks, content pipelines and forensics. Distinct from an extension-to-MIME lookup.

api.oanor.com/filetype-api

Email Parser API

Parse a raw email (RFC 822 / MIME / .eml) into clean, structured data. Send the raw message (or a URL to a .eml file) and get back the sender, recipients (to / cc / bcc / reply-to) with names and addresses split out, the subject, the parsed date, the Message-ID, In-Reply-To and References (for threading), priority, the plain-text and HTML bodies, every header, and metadata for each attachment (filename, content type, size, content-id — never the binary payload). A /v1/headers endpoint returns just the header map. Parsing is fully local (no third-party service) and nothing is stored. Live. 3 endpoints. Built for inbound-email processing, .eml viewers, mailbox import, ticketing and email-automation pipelines. Distinct from address validation and SPF/DMARC checks.

api.oanor.com/emailparse-api

MIME API

A fast, fully-local MIME and file-type toolkit: look up the MIME type, charset and category for a filename or extension, list every file extension registered for a MIME type, and detect a file's real type from its leading magic bytes (over 40 signatures, including RIFF container disambiguation for WEBP, WAV and AVI), accepting hex or base64 input. Every endpoint accepts input via the query string or the request body. Pure server-side compute, no third-party upstream, so responses are instant and always available. Ideal for upload validation, security (verify a file's real type against its claimed extension), CDNs and content pipelines.

api.oanor.com/mime-api

Email Normalize API

Canonicalize email addresses so you can deduplicate accounts and catch different aliases of the same inbox. The normalize endpoint lower-cases the address and applies provider-aware rules: it strips the dots from Gmail and Googlemail local parts (because Gmail ignores them) and maps googlemail.com to gmail.com, removes +tag sub-addressing for Gmail and the many providers that support it — Outlook, Hotmail, Live, iCloud, Fastmail, Proton, Yandex, Zoho, GMX and more — and, by default, for every domain so duplicates never slip through, while reporting exactly which changes it made and which provider it detected. The compare endpoint normalizes two addresses and tells you whether they resolve to the same mailbox. Everything is computed locally and deterministically, with no DNS or network calls, so it is instant and private. Ideal for sign-up and registration dedup, fraud and abuse prevention (one person, many aliases), CRM and mailing-list hygiene, and merging customer records. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This normalizes addresses for comparison; to verify that an address actually exists and can receive mail (MX, disposable, role accounts) use an email-verification API.

api.oanor.com/emailnormalize-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for MIME Encoding API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call MIME Encoding API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for MIME Encoding API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does MIME Encoding API cost?
MIME Encoding API has a free tier with 100 calls / month. Paid plans start at €6.65 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is MIME Encoding API GDPR-compliant?
All requests to MIME Encoding API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/mimeencode-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/mimeencode-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/mimeencode-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/mimeencode-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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