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.
4308
Sites Indexed
37
Avg Score
1322 entries in this directory
15
+15 structured API
missing +25 llms.txt
SchemaFlow — system design diagrams that explain themselves
schemaflow.dev
An infinite canvas for system design. Search every AWS & GCP service, wire them up, and hover any piece to see what it does. Collaborate in real time, or let AI draw it from your codebase. End-to-end encrypted.
API
developer
15
+15 structured API
missing +25 llms.txt
M
15
+15 structured API
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G
Genql - SDK client for any GraphQL API
genql.dev
Type safe GraphQL query builder for TypeScript. Create an SDK for any GraphQL API
API
developer
15
+15 structured API
missing +25 llms.txt
ecosyste.ms | Tools and datasets to support, sustain, and secure critical digital infrastructure.
ecosyste.ms
Tools and datasets to support, sustain, and secure critical digital infrastructure.
API
developer
15
+15 structured API
missing +25 llms.txt
C
15
+15 structured API
missing +25 llms.txt
B
15
+15 structured API
missing +25 llms.txt
A-Team — Build AI Applications with Any Model, Deploy Anywhere — A-Team
ateam-ai.com
A-Team is an AI Application Platform for generating, deploying, governing, and operating complete AI systems across OpenAI, Anthropic, Ollama, SGLang, cloud, and self-hosted environments.
API
developer
15
+15 structured API
missing +25 llms.txt
R
15
+15 structured API
missing +25 llms.txt
Hugging Face – The AI community building the future.
hf.co
We’re on a journey to advance and democratize artificial intelligence through open source and open science.
API
developer
15
+15 structured API
missing +25 llms.txt
D
15
+15 structured API
missing +25 llms.txt
M
15
+15 structured API
missing +25 llms.txt
15
+15 structured API
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M
15
+15 structured API
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D
Senzing Documentation
docs.senzing.com
SDK documentation, quickstart guides, tutorials, and AI-assisted workflows for Senzing entity resolution.
API
developer
15
+15 structured API
missing +25 llms.txt
Caddy - The Ultimate Server with Automatic HTTPS
caddyserver.com
Caddy is a powerful, enterprise-ready, open source web server with automatic HTTPS written in Go
API
developer
15
+15 structured API
missing +25 llms.txt
15
+15 structured API
missing +25 llms.txt
Cloud Computing Services - Amazon Web Services (AWS)
aws.amazon.com
Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services. Free to join, pay only for what you use.
API
developer
15
+15 structured API
missing +25 llms.txt
B
15
+15 structured API
missing +25 llms.txt
15
+15 structured API
missing +25 llms.txt
Do more with less. | Polar Signals
polarsignals.com
Polar Signals Cloud is an always-on, zero-instrumentation continuous profiling for CPU, GPU, and Memory that helps improve performance, understand incidents, and lower infrastructure costs.
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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