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.
5543
Sites Indexed
39
Avg Score
1694 entries in this directory
Screenshots you'll stake your reputation on, flawless full page captures and more. | Urlbox
urlbox.com
Take accurate screen grabs of web content with Urlbox. Trusted by 1,700+ customers generating thousands of images per minute. Start your free trial today.
llms.txt
ai-plugin
API
developer
60
+25 llms.txt
+20 ai-plugin
missing +20 OpenAPI
The Agent Times | Independent News for the AI Agent Economy
theagenttimes.com
The Agent Times is an independent news publication covering the AI agent economy: platforms, open source, research, commerce, sales, marketing, engineering, ad tech, infrastructure, regulation, labor, opinion, and interviews. Founded 2026.
llms.txt
API
AI bots
Schema.org
MCP
developer
60
+25 llms.txt
+15 structured API
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
searchcode.com — Code intelligence for LLMs
searchcode.com
MCP server providing structured code intelligence for LLMs. Analyze, search, and retrieve code from any public git repository with 99% token reduction.
llms.txt
OpenAPI
API
developer
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
R
FUTURE Reliability Pack | AI Agent Infrastructure
reliability-pack-worker.animixel.workers.dev
Operational reliability APIs for AI agents: normalize JSON-like payloads, contract test tools, and generate evidence packs.
llms.txt
OpenAPI
API
developer
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
Where you're truly known | ~alter
truealter.com
Identity infrastructure. Where your identity earns.
llms.txt
API
AI bots
Schema.org
MCP
developer
60
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Metrifyr — AI Analytics for GA4, Search Console, GTM & AdSense | Metrifyr
metrifyr.cloud
Connect Google Analytics 4, Search Console, AdSense and Tag Manager to any AI assistant. Query your marketing data in natural language — no SQL, no dashboards.
llms.txt
API
AI bots
Schema.org
MCP
developer
60
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Nexbid — Open Infrastructure for the Agent Commerce Match-Moment
nexbid.dev
Open infrastructure for the agent commerce Match-Moment — where publisher content, brand product, and user intent meet. AI agents discover and recommend products through open protocols (AdCP, MCP, A2A). Swiss-hosted.
llms.txt
API
AI bots
Schema.org
MCP
developer
60
+25 llms.txt
+15 structured API
missing +20 ai-plugin
M
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
D
60
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
Datacircle | A data co-op: B2B data APIs with no markup
datacircle.dev
Datacircle is a data co-op. Step 1: Query your favorite B2B data APIs through us. Same request, same price, no markup. Step 2: You're DONE. Every morning, you get the flat file of your data plus everyone else's. Sign up at datacircle.dev with your work email: a $5 credit, that's 2,105 LinkedIn profiles at $2.375 per 1,000.
llms.txt
API
Schema.org
MCP
developer
55
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Kortix – The open-source AI Operating System
kortix.com
Open-source AI Operating System: your agents, skills, memory, and connectors in one repo you own. Any model. Self-host or cloud.
llms.txt
API
Schema.org
MCP
developer
55
+25 llms.txt
+15 structured API
missing +20 ai-plugin
F
Signal Lab — Apify Data APIs & MCP Tools
first-livid-omega.vercel.app
Developer-first Apify data APIs and MCP tools for Amazon price tracking, Google Autocomplete, website-to-Markdown, YouTube transcripts, Reddit, jobs, and restaurant menus.
llms.txt
API
Schema.org
MCP
developer
55
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Free & Open Source Status Page | openstatus
openstatus.dev
Ship your status page before your SOC 2 auditor asks for it. Open source, free to start, self-hostable.
llms.txt
API
Schema.org
MCP
developer
55
+25 llms.txt
+15 structured API
missing +20 ai-plugin
X
55
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
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"
Agent Docs
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