#api-first

101 tools curated in this category — including Oynix, Tabu, PairBook

tech

Find on mySelectas all sites and tools related to api-first. This selection of 101 resources is reviewed and maintained by the community. The most popular include Oynix, Tabu, PairBook. Each tool comes with a review, tags, comparisons and alternatives to help you make the best choice.

101 tools
PairBookNew
Finance🌐 EN

A free, no-signup database of correlation, beta, and holdings-overlap analysis for 52,000+ US stock and ETF pairs.

#data-visualization#api-first#free#analytics
pairbook.io
📄 Full details →
👥 Target audience

Investisseurs et développeurs analysant la corrélation entre actions et ETF américains

🌍 Target countries

États-Unis (marchés couverts), accessible worldwide

🗣️ Available languages
EN
🔄 Alternatives
Portfolio VisualizerBloomberg TerminalCalcul manuel via Yahoo Finance
🔗 Visit PairBook
Retriever AINew
Automation, No-code & Integrations🌐 EN

Browser automation agent that handles web tasks via natural language, from lead enrichment to data extraction, with cloud scaling and API integration.

#automation#api-first#ai-agents#browser-extension#freemium
rtrvr.ai
📄 Full details →
👥 Target audience

Équipes GTM (growth, sales, marketing), fondateurs de startups, développeurs et builders no-code, entreprises ayant besoin d'automatiser des tâches web répétitives (extraction de données, enrichissement de leads, remplissage de formulaires).

🌍 Target countries

Worldwide

🗣️ Available languages
EN
🔄 Alternatives
ApifyBardeenBrowserbaseBrowser UseClay
🔗 Visit Retriever AI
OpenspenderNew
Payments, Billing & Ops🌐 EN

Self-custodial wallet system that enables AI agents to make autonomous payments for services while maintaining user control over funds via USDC on Base blockchain.

#ai-agents#api-first#billing#payments
openspender.com
📄 Full details →
👥 Target audience

Développeurs qui construisent des agents IA autonomes et veulent un environnement de dépense contrôlé, sans gérer un compte séparé chez chaque fournisseur d'API.

🌍 Target countries

Worldwide

🗣️ Available languages
EN
🔄 Alternatives
SkyfireCoinbase x402Payman AI
🔗 Visit Openspender
EmbedenvNew
Learning & Documentation🌐 EN

A widget you drop into a blog post, doc page, or course that turns a static code snippet into a real, runnable program a reader can click "Run" on, without leaving the page.

#containers#ai-agents#documentation-tool#code-editor#api-first
embedenv.com
📄 Full details →
👥 Target audience

Rédacteurs techniques, plateformes de documentation, bootcamps, blogueurs tech, applications LLM/agents ayant besoin d'exécuter du code de façon sécurisée

🌍 Target countries

International

🗣️ Available languages
EN
🔄 Alternatives
CodapiCodeSandboxSandpack
🔗 Visit Embedenv
CodapiNew
Learning & Documentation🌐 EN

A small tool that adds a "Run" button under any code block in your documentation, so readers can execute the example on the spot instead of copy-pasting it into their own terminal.

#documentation-tool#free#open-source#self-hostable#code-editor
codapi.org
📄 Full details →
👥 Target audience

Rédacteurs techniques, créateurs de documentation, instructeurs de cours en ligne, entreprises tech, blogueurs voulant du code exécutable

🌍 Target countries

International

🗣️ Available languages
EN
🔄 Alternatives
EmbedenvCodeSandboxStackBlitz
🔗 Visit Codapi
FindityNew
Payments, Billing & Ops🌐 EN

A white-label expense management engine that banks, payroll platforms, and accounting software embed under their own brand instead of building expense tracking from scratch.

#accounting#api-first#enterprise#billing
findity.com
📄 Full details →
👥 Target audience

Éditeurs de logiciels compta/RH, banques, émetteurs de cartes, prestataires de paie externalisée voulant intégrer la gestion de notes de frais sans la développer

🌍 Target countries

International (US, Europe)

🗣️ Available languages
EN
🔄 Alternatives
SpendeskPleoCircula
🔗 Visit Findity
EmbatNew
Payments, Billing & Ops🌐 EN

An AI-powered treasury management platform giving finance teams real-time visibility into cash across multiple banks, entities, and currencies.

#payments#accounting#enterprise#api-first
embat.io
📄 Full details →
👥 Target audience

Équipes trésorerie d'entreprises mid-market à grande taille avec opérations multi-entités, multi-banques et multi-devises

🌍 Target countries

International (Europe, US)

🗣️ Available languages
EN
🔄 Alternatives
Modern TreasuryKyribaTrovata
🔗 Visit Embat
API Portal
DevOps, Cloud & Infrastructure🌐 EN

A centralized hub where a company's engineering team can catalog every API they run, publish interactive documentation for each one, and control who inside or outside the company gets access.

#api#documentation-tool#api-first#saas#web-development
api-portal.io
📄 Full details →
👥 Target audience

Équipes engineering de taille moyenne à grande gérant de nombreuses APIs internes/externes (fintech, banque, e-commerce, énergie)

🌍 Target countries

International

🗣️ Available languages
EN
🔄 Alternatives
Kong (gateway complet, tier gratuit open source)Postman (gratuit, Pro à 12$/mois/utilisateur)StoplightReadme.io
🔗 Visit API Portal
PostPlanify
CRM, Sales & Marketing Tech🌐 EN

Social media management platform enabling agencies and teams to schedule posts, track analytics, and collaborate across 10 social platforms.

#automation#social-media#collaboration#saas#productivity
postplanify.com
📄 Full details →
👥 Target audience

Social media agencies, growing teams, solo agency owners, businesses managing multiple client accounts across social platforms

🌍 Target countries

Worldwide

🗣️ Available languages
EN
🔄 Alternatives
Buffer (freemium, $15-$100/month)Hootsuite (enterprise, $49-$739/month)Later (visual-first, $25-$300/month)Sprout Social (enterprise-heavy, $200+/month)
🔗 Visit PostPlanify
MemoryPlugin
AI & Machine Learning🌐 EN

Cross-platform long-term memory system that maintains shared context across 21+ AI tools without requiring repetition.

#ai-agents#productivity#rag#ai#api-first
memoryplugin.com
📄 Full details →
👥 Target audience

Daily AI users across coding, writing, decision-making, and client work who switch between multiple AI platforms

🌍 Target countries

Worldwide

🗣️ Available languages
EN
🔄 Alternatives
Context (context management for Claude, $8/month)Notebooklm (Google, free tier available)Pinecone (vector DB, $0.04/1M vectors)
🔗 Visit MemoryPlugin
Redactly
Security & Privacy🌐 EN

An API that automatically strips personal information like names and addresses out of text before it's sent to an AI model, so sensitive data never actually reaches the AI provider.

#security#api#privacy#api-first
getredactly.com
📄 Full details →
👥 Target audience

Équipes d'ingénierie IA/ML qui doivent nettoyer les données avant de les envoyer à un LLM ou une base vectorielle

🌍 Target countries

Worldwide

🗣️ Available languages
EN
🔄 Alternatives
PII BlackoutPortkey (guardrails PII)Treza Labs
🔗 Visit Redactly
AgentKey
AI & Machine Learning🌐 EN

A single subscription and API key that gives AI agents access to 50+ search, scraping, social, finance, and crypto data providers through one shared credit balance.

#ai-agents#paid#api#api-first
agentkey.app
📄 Full details →
👥 Target audience

Développeurs et équipes construisant des agents IA qui ont besoin de données web/sociales/financières en temps réel

🌍 Target countries

Worldwide

🗣️ Available languages
EN
🔄 Alternatives
Tavily (direct)Firecrawl (direct)Composio
🔗 Visit AgentKey
Reap
Visual, Image & Video Creation🌐 EN

A tool that takes a long webinar or interview recording and automatically cuts it into short, captioned clips ready for TikTok or Instagram — even dubbing them into other languages if needed.

#video-editing#transcription#freemium#api-first
reap.video
📄 Full details →
👥 Target audience

Individual creators, solopreneurs, content agencies, developers automating clip pipelines

🌍 Target countries

50+ countries

🗣️ Available languages
EN100+ LANGUAGES (CAPTIONS)80+ LANGUAGES (DUBBING)
🔄 Alternatives
Opus ClipVidyo.aiChatCut
🔗 Visit Reap
Flexprice
Payments, Billing & Ops🌐 EN

Open-source billing engine for usage-based and AI/agent pricing, with real-time metering, credits and automatic invoicing.

#self-hostable#saas#subscriptions#api-first#billing
flexprice.io
📄 Full details →
👥 Target audience

Engineering, product and finance teams at AI-native companies and usage-based SaaS businesses

🌍 Target countries

Worldwide

🗣️ Available languages
EN
🔄 Alternatives
AmberfloOrbLagoStripe Billing
🔗 Visit Flexprice
Treasury Prime
Payments, Billing & Ops🌐 EN

Banking-as-a-service API connecting fintechs and platforms to a network of US sponsor banks, for launching accounts, cards and payments without becoming a bank.

#api-first#backend-as-a-service#payments#enterprise#api
treasuryprime.com
📄 Full details →
👥 Target audience

Fintechs, neobanks, credit unions, investment platforms and marketplaces needing embedded banking (accounts, cards, payments) without becoming a bank

🌍 Target countries

United States

🗣️ Available languages
EN
🔄 Alternatives
SyncteraUnitStripe TreasuryRailsrSolid
🔗 Visit Treasury Prime