Find the right API
Use search when the broad directory stops being enough. Filter by category, auth, CORS, signup friction, and result freshness until the shortlist becomes obvious.
Start with category and auth when you know the integration shape. Use free, signup, and CORS flags when you are trying to remove setup friction.
Sort by verification or response time when the final call is about reliability, not just category fit.
351 results in the full search view. Start narrowing from the rail when the field is still too broad.
Cloud Pub/Sub API
Google Cloud Pub/Sub API is a globally-scaled message queue — topic/subscription model, at-least-once delivery, millisecond latency, auto-scaling.
Cloud Run Admin API
Administer Cloud Run services, jobs, executions, revisions, and tasks for container-based workloads.
Cloud Runtime Configuration API
Manage runtime configs, variables, waiters, and watch operations for dynamic configuration workflows.
Cloud Talent Solution API
Google Cloud Talent Solution Jobs API provides intelligent job search — semantic matching, skill recognition, geo filtering, auto-categorization.
Cloud Translation API
Google Cloud Translation API offers neural machine translation across 100+ languages — among the best mainstream translation services.
Cloud Vision API
Google Cloud Vision API provides object detection, OCR, face attributes, landmark recognition, and safe-content moderation.
Cloudflare D1 API
Cloudflare D1 is Cloudflare globally distributed SQLite — millisecond access within Workers, global read replicas, SQL-compatible, generous free tier.
CockroachDB Cloud API
CockroachDB Cloud API is managed distributed SQL database — Postgres-compatible + globally distributed + strongly consistent + horizontally scalable; suits multi-region critical workloads.
CodeArtifact
AWS CodeArtifact API provides managed artifact repositories — store private npm, Maven, PyPI, NuGet packages and proxy public sources.
Cohere API
Cohere API provides enterprise-grade LLM services — Command R/R+ models, Embed embeddings, Rerank reranking; focused on enterprise RAG and data privacy.
Coinbase Exchange API
Coinbase Exchange API (formerly Pro / Advanced Trade API) provides programmatic trading on Coinbase's US-compliant exchange — spot, order book, account management.
CoinGecko API
CoinGecko API provides real-time price, market cap, volume, and historical data for 13000+ cryptocurrencies — the most popular free crypto data API.
CoinMarketCap API
CoinMarketCap (CMC) API provides cryptocurrency and exchange market data — one of crypto's most authoritative sources (Binance-acquired since 2020).
College Football Data API
College Football Data API provides complete NCAA college football data — games, stats, teams, players, recruiting rankings, betting odds. Fully free.
Computer Vision Client
Bing Computer Vision API analyzes images — OCR, object detection, face detection, scene captioning, content moderation.
Configuration API
Adyen Balance Platform API is the core of "Adyen for Platforms" — manage balance accounts, payment splits, and KYC across multiple merchants on a marketplace/SaaS platform.
Confirmation of Funds API Specification
UK Open Banking Confirmation of Funds API (CBPII) lets third parties query if a user account has sufficient funds — returns only yes/no, not the actual amount.
Container Analysis API
Container Analysis API stores and queries container image metadata — vulnerability scan results (CVE), build provenance, signed attestations, compliance checks.
Crypto.com Exchange API
Crypto.com Exchange API provides programmatic trading on Crypto.com's global exchange — spot, derivatives, margin trading; famous for NBA Lakers arena sponsorship.
CryptoCompare API
CryptoCompare API provides aggregated crypto market data — multi-exchange prices, historical candles, social media sentiment, news, ICO data.
Custom Behavioral Events API
Send custom behavioral events into HubSpot through the /events/v3/send endpoint.
Custom Image Search Client
Bing Custom Image Search restricts image search to a custom set of domains — the image counterpart of Bing Custom Search.
Custom Search Client
Bing Custom Search lets you define a custom domain subset and run Bing search against it — for vertical or enterprise search.
Custom Vision Prediction Client
Custom Vision Prediction API runs inference using your trained Custom Vision model — upload an image, get classification labels and confidence scores.