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Developer Tools

69 public APIs6 providersdeveloper-tools
Airtable API logo
developer-toolsapi_keyRESTFreeHTTPS

Airtable API

Airtable API lets you use Airtable databases (spreadsheet-like collaborative DB) as backends — read/write records, fields, views; favorite of no-code teams.

airtableno-codedatabase
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Alchemy API logo
developer-toolsapi_keyREST / WebSocketFreeHTTPS

Alchemy API

Alchemy is a Web3 dev platform — Ethereum/Polygon/Arbitrum/Optimism/Solana node access + enhanced APIs (NFT, Token, Transfer, etc.).

web3alchemyethereum
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Free
Response
209 ms
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Anthropic Claude API logo
developer-toolsapi_keyRESTPaidHTTPS

Anthropic Claude API

Anthropic Claude API provides Claude 3.5 Sonnet / Claude 3 Opus large language models — known for alignment safety and long context (200K tokens).

aiclaudeanthropic
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Paid
Response
288 ms
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Appwrite logo
developer-toolsREST / WebSocketHTTPS

Appwrite

Appwrite Server API is open-source Firebase alternative — auth, database, storage, functions, messaging integrated backend-as-a-service.

appwritebaasopen-source
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1069 ms
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Asana logo
developer-toolsoauthRESTFreeHTTPS167 endpoints

Asana

Asana API lets apps read and write tasks, projects, goals, and portfolios — the primary integration entry point for team collaboration.

project-managementasanaproductivity
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Free
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693 ms
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AssemblyAI API logo
developer-toolsapi_keyREST / WebSocketPaidHTTPS

AssemblyAI API

AssemblyAI API provides enterprise-grade speech-to-text + LLM enhancements — real-time and batch transcription, speaker diarization, sentiment analysis, auto LLM summary.

aiassemblyaispeech-to-text
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Paid
Response
492 ms
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AutoSuggest Client logo
developer-toolsRESTHTTPS

AutoSuggest Client

Bing Autosuggest API returns search suggestions from a partial query — for search-box type-ahead completion.

microsoftbingautosuggest
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461 ms
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Cesium ion API logo
developer-toolsapi_keyRESTFreeHTTPS

Cesium ion API

Cesium ion API is an open-source geospatial 3D platform — global high-precision 3D terrain + satellite imagery + building models, paired with CesiumJS engine for web 3D GIS apps.

cesium3d-gisgeospatial
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Free
Response
218 ms
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Cloudflare D1 API logo
developer-toolsapi_keyREST / SQLFreeHTTPS

Cloudflare D1 API

Cloudflare D1 is Cloudflare globally distributed SQLite — millisecond access within Workers, global read replicas, SQL-compatible, generous free tier.

cloudflared1sqlite
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CockroachDB Cloud API logo
developer-toolsapi_keyREST / PostgreSQLFreeHTTPS

CockroachDB Cloud API

CockroachDB Cloud API is managed distributed SQL database — Postgres-compatible + globally distributed + strongly consistent + horizontally scalable; suits multi-region critical workloads.

cockroachdbdistributed-sqlpostgres-compatible
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Cohere API logo
developer-toolsapi_keyRESTPaidHTTPS

Cohere API

Cohere API provides enterprise-grade LLM services — Command R/R+ models, Embed embeddings, Rerank reranking; focused on enterprise RAG and data privacy.

aicoherellm
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Paid
Response
234 ms
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Computer Vision Client logo
developer-toolsRESTHTTPS

Computer Vision Client

Bing Computer Vision API analyzes images — OCR, object detection, face detection, scene captioning, content moderation.

microsoftbingcomputer-vision
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Unclear
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307 ms
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Custom Image Search Client logo
developer-toolsRESTHTTPS

Custom Image Search Client

Bing Custom Image Search restricts image search to a custom set of domains — the image counterpart of Bing Custom Search.

microsoftbingcustom-search
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266 ms
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Custom Search Client logo
developer-toolsRESTHTTPS

Custom Search Client

Bing Custom Search lets you define a custom domain subset and run Bing search against it — for vertical or enterprise search.

microsoftbingcustom-search
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173 ms
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Custom Vision Prediction Client logo
developer-toolsRESTHTTPS

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.

microsoftcustom-visionimage-classification
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48 ms
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Custom Vision Training Client logo
developer-toolsRESTHTTPS

Custom Vision Training Client

Custom Vision Training API programmatically trains image-classification / object-detection models — create projects, upload labeled images, trigger training, publish iterations.

microsoftcustom-visiontraining
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77 ms
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DeepSeek API logo
developer-toolsapi_keyRESTPaidHTTPS

DeepSeek API

DeepSeek API provides China's top open-source LLMs — DeepSeek-V3, DeepSeek-Coder, etc.; known for extreme cost-effectiveness + open-source strategy + inference performance.

deepseekllmchina-ai
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Dune Analytics API logo
developer-toolsapi_keyRESTFreeHTTPS

Dune Analytics API

Dune Analytics API lets developers programmatically execute SQL queries on indexed on-chain data for Ethereum / Polygon / Arbitrum / Solana / etc.

duneon-chain-analyticssql
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Health
Degraded
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Free
Response
301 ms
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Entity Search Client logo
developer-toolsRESTHTTPS

Entity Search Client

Bing Entity Search recognizes queries as named entities (people, places, organizations) and returns structured card info (description, image, related links).

microsoftbingentity-search
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72 ms
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Etherscan API logo
developer-toolsapi_keyRESTFreeHTTPS

Etherscan API

Etherscan API provides Ethereum mainnet block explorer data — transaction history, token holdings, contract source code, internal transactions, ETH gas tracker.

ethereumetherscanblock-explorer
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258 ms
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Fauna API logo
developer-toolsapi_keyREST / GraphQLPaidHTTPS

Fauna API

Fauna is a serverless distributed ACID database — globally distributed, strongly consistent, FQL query language, hybrid relational + document model.

faunaserverless-dbdistributed
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Gitlab logo
developer-toolsREST / GraphQLHTTPS

Gitlab

GitLab API provides complete programmatic access to the GitLab platform — repositories, issues, merge requests, CI/CD pipelines, users, and groups.

gitlabdevopsgit
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256 ms
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Groq API logo
developer-toolsapi_keyRESTPaidHTTPS

Groq API

Groq API uses in-house LPU (Language Processing Unit) chips for open-source LLM inference — 10x faster than GPUs (Llama 70B at 500+ tokens/sec).

aigroqllm
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Paid
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73 ms
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Helicone API logo
developer-toolsapi_keyRESTFreeHTTPS

Helicone API

Helicone API is an LLM observability tool — one-line proxy integration to trace, monitor, cache, rate-limit any OpenAI / Anthropic call.

heliconellm-observabilitymonitoring
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