Developer API Directory
Every developer API in our index, ranked by agentic readiness. All entries expose at least one programmatic signal agents can discover at build time.
5573
Sites Indexed
39
Avg Score
1705 entries in this directory
15
+15 structured API
missing +25 llms.txt
F
15
+15 structured API
missing +25 llms.txt
A
15
+15 structured API
missing +25 llms.txt
Authoryze: Your agent never sees your real card
agentpays.dev
Authoryze gives each agent purchase a single-use virtual card. A breach leaks one disposable card, not your funding source.
API
developer
15
+15 structured API
missing +25 llms.txt
P
15
+15 structured API
missing +25 llms.txt
C
15
+15 structured API
missing +25 llms.txt
A
15
+15 structured API
missing +25 llms.txt
FastHTML - Modern web applications in pure Python
fastht.ml
Modern web applications in pure Python
API
developer
15
+15 structured API
missing +25 llms.txt
Dynamic | Wallet Infrastructure for Fintech, Crypto, and Stablecoins
dynamic.xyz
Dynamic combines authentication, smart wallets, and secure key management into one flexible SDK. Get the most multi-chain coverage across chains and third-party wallets.
API
developer
15
+15 structured API
missing +25 llms.txt
Pinata | Autonomous File Storage
pinata.cloud
Add file uploads and retrieval in minutes so you can focus on your app —because you’ve got better things to code than infrastructure.
API
developer
15
+15 structured API
missing +25 llms.txt
ReadMe · Developer-friendly API documentation
readme.com
ReadMe helps you create beautiful, interactive API documentation that developers love.
API
developer
15
+15 structured API
missing +25 llms.txt
QuickBooks Desktop API | Conductor
conductor.is
QuickBooks Desktop API made simple. Connect to QuickBooks Desktop or Enterprise in minutes with Conductor's typed Node.js and Python SDKs and REST API.
API
developer
15
+15 structured API
missing +25 llms.txt
Mintlify - The Knowledge Platform Built for Agents
mintlify.com
Self-updating documentation for startups, enterprises, and agents.
API
developer
15
+15 structured API
missing +25 llms.txt
Protomaps - The open source map in a file
protomaps.com
The open source map for developers
API
developer
15
+15 structured API
missing +25 llms.txt
Code Understanding, Oversight and Evolution | Sourcegraph
sourcegraph.com
Give humans and agents complete context to understand, oversee, and evolve the world's largest, most complex codebases.
API
developer
15
+15 structured API
missing +25 llms.txt
C
CodeSandbox: Instant Cloud Development Environments
codesandbox.io
CodeSandbox is a cloud development platform that empowers developers to code, collaborate and ship projects of any size from any device in record time.
API
developer
15
+15 structured API
missing +25 llms.txt
Realtime voice, video, and AI for developers - Daily
daily.co
Daily is the team behind Pipecat. Ultra low latency, open source SDKs, and enterprise reliability since 2016.
API
developer
15
+15 structured API
missing +25 llms.txt
100ms.live - Live video infrastructure for the world
100ms.live
Add real-time video calls and livestreaming to your app with fully customizable UI, APIs to manage rooms, interactivity APIs to add chat, whiteboard, polls and more.
API
developer
15
+15 structured API
missing +25 llms.txt
TinyPNG – Compress WebP, PNG and JPEG images intelligently
tinypng.com
Free online image optimizer for faster websites! Reduce the file size of your WEBP, JPEG and PNG Images with TinyPNG’s smart lossy compression engine.
API
developer
15
+15 structured API
missing +25 llms.txt
AI and Cloud Computing Services | Google Cloud
cloud.google.com
Meet your business challenges head on with AI and cloud computing services from Google, including security, data management, and hybrid & multi-cloud.
API
developer
15
+15 structured API
missing +25 llms.txt
15
+15 structured API
missing +25 llms.txt
LangChain: Observe, Evaluate, and Deploy Reliable AI Agents
langchain.com
LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents.
API
developer
15
+15 structured API
missing +25 llms.txt
Better Stack - 30x cheaper than Datadog, Exceptional support
betterstack.com
AI SRE and MCP server, incident management, on-call, logs, metrics, traces, and error tracking. 7,000+ happy customers. 60-day money back guarantee.
API
developer
15
+15 structured API
missing +25 llms.txt
Wire NHS into your agent — MCP server
Add Not Human Search as an MCP tool. Your agent can call search_agents, get_site_details, get_stats, and submit_site at runtime.
Claude Code
claude mcp add --transport http nothumansearch https://nothumansearch.ai/mcp
Other clients: point any MCP-compatible tool at
https://nothumansearch.ai/mcp (streamable-http transport).Use NHS via REST
Prefer plain HTTP? Hit the search endpoint directly.
Search API
curl "https://nothumansearch.ai/api/v1/search?q=payment+API"
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