Documentation

API Documentation

45 REST APIs behind one key and one monthly credit balance; 50 of them have a full reference below. JSON over HTTPS, no SDK required.

Quick start

1 Get an API key. Sign up free and create a key on the API Keys page — 1,000 credits a month, no card.
2 Make your first call. Any HTTP client works — pass the key in the X-Api-Key header.
3 Track your usage. Credits, latency and errors per key on your dashboard's Usage page, once you've signed up.

bash

curl https://api.apicodex.io/countries/v1/all \
  -H "X-Api-Key: $APICODEX_KEY"

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Authentication

Every request carries your key in the X-Api-Key header. Keys start with acx_live_ and belong to your team — every key shares the team's plan and credit balance.

Keep keys server-side. A compromised key can be revoked instantly; revocation takes effect within minutes.

Credits & rate limits

Each call spends credits from one monthly balance: cheap lookups cost 1, heavyweight scrapes cost more. The exact cost of every endpoint is on the pricing page and in each API's reference below, and every response says what it cost in its X-Credits-Charged header.

Requests per second is capped per plan. Over quota or over the rate limit, the gateway answers 429 until the billing period rolls over or you back off.

Errors

Failures are JSON with an error message and a conventional status code:

400Bad request — a required parameter is missing or malformed.

401Missing, invalid or revoked API key.

403Key suspended — contact support.

404Unknown endpoint — check the path against the reference below.

429Over the plan's credit quota for this period, or over the per-second rate limit.

5xxUpstream failure — safe to retry with backoff; failed calls still show on your Usage page.

Reference

Every API, straight from the spec

Each reference is rendered from its OpenAPI spec (/openapi/{api}.yaml): parameters, responses and examples. The specs are maintained by hand and ship with each release of this site.

Email

Email Deliverability API

/openapi/email-deliverability.yaml

Email Intelligence API

/openapi/email-intelligence.yaml

DMARC Parser API

/openapi/dmarc-parser.yaml

Document Parsers

Email Parser API

/openapi/email-parser.yaml

Invoice Parser API

/openapi/invoice-parser.yaml

Receipt Parser API

/openapi/receipt-parser.yaml

Resume Parser API

/openapi/resume-parser.yaml

Accounts Payable Parser API

/openapi/accounts-payable-parser.yaml

Bank Statement Parser API

/openapi/bank-statement-parser.yaml

Transcript Parser API

/openapi/transcript-parser.yaml

Text Intelligence

Text Analysis API

/openapi/text-analysis.yaml

Text Anonymization API

/openapi/text-anonymization.yaml

Skill Parser API

/openapi/skill-parser.yaml

Language Detection API

/openapi/language.yaml

Web Intelligence

SERP API

/openapi/serp.yaml

AI SERP API

/openapi/ai-serp.yaml

URL Metadata API

/openapi/url-metadata.yaml

Infrastructure

DNS Lookup API

/openapi/dns.yaml

IP Intelligence API

/openapi/ip-intelligence.yaml

RDAP API

/openapi/rdap.yaml

Whois Lookup API

/openapi/whois.yaml

Security Headers API

/openapi/security-headers.yaml

Data & Reference

Phone Number Validation API

/openapi/phone.yaml

Countries API

/openapi/countries.yaml

Aviation API

/openapi/aviation.yaml

Public Holidays API

/openapi/holidays.yaml

Currency API

/openapi/currency.yaml

Developer Tools

JWT API

/openapi/jwt.yaml

EXIF API

/openapi/exif.yaml

Developer Toolbox API

/openapi/toolbox.yaml

Emoji API

/openapi/emoji.yaml

Developer Reference API

/openapi/reference.yaml

Web Scraping

Walmart Data API

/openapi/walmart.yaml

App Store Data API

/openapi/app-store.yaml

Travel Data API

/openapi/travel.yaml

AI Visibility API

/openapi/ai-visibility.yaml

Web Scraper API

/openapi/scraper.yaml

Amazon Data API

/openapi/amazon.yaml

Google Maps Data API

/openapi/google-maps.yaml

Zillow Real Estate API

/openapi/zillow.yaml

Indeed Jobs API

/openapi/indeed.yaml

Crunchbase Company API

/openapi/crunchbase.yaml

ZoomInfo Company API

/openapi/zoominfo.yaml

Social Media

Advanced LinkedIn API

/openapi/advanced-linkedin.yaml

Advanced X (Twitter) API

/openapi/advanced-twitter.yaml

Advanced Instagram API

/openapi/advanced-instagram.yaml

Advanced TikTok API

/openapi/advanced-tiktok.yaml

Advanced Facebook API

/openapi/advanced-facebook.yaml

Advanced Reddit API

/openapi/reddit.yaml

Advanced YouTube API

/openapi/youtube.yaml