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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.

5555
Sites Indexed
39
Avg Score
1700 entries in this directory
D
docs.powerdrill.ai
docs.powerdrill.ai
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
D
docs.chatling.ai
docs.chatling.ai
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
Webflow Developer Platform
developers.webflow.com
Build apps, deploy full-stack projects, and extend Webflow with APIs, SDKs, Cloud, Code Components, and MCP. Docs, integrations, and developer resources.
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
D
docs.langchain.com
docs.langchain.com
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
D
docs.agno.com
docs.agno.com
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
D
Overview | Products
docs.ionos.com
Explore our guides and reference documents to integrate IONOS CLOUD products and services.
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
D
docs.verdn.com
docs.verdn.com
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
D
docs.squared.ai
docs.squared.ai
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
developer.box.com
developer.box.com
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
docs.payabli.com
docs.payabli.com
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
D
docs.frigade.com
docs.frigade.com
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
docs.baseten.co
docs.baseten.co
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
Deno, the drop-in JavaScript runtime for Node developers
deno.land
A drop-in JavaScript runtime with built-in TypeScript, npm support, and security by default. Run your existing Node project on Deno with no setup.
llms.txt API developer
40
+25 llms.txt +15 structured API missing +20 ai-plugin
BlockVectra Docs
docs.blockvectra.com
Multi-chain JSON-RPC and Data API documentation with MCP tools and chain-specific RPC, starter and testnet faucet guides.
llms.txt MCP developer
35
+25 llms.txt +10 MCP missing +20 ai-plugin
OpenCode | The open source AI coding agent
opencode.ai
OpenCode - The open source coding agent.
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
G
gamedai-v2-preview.fly.dev
gamedai-v2-preview.fly.dev
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
O
dxpert.ai — store & account
opwhcervi3.execute-api.ca-central-1.amazonaws.com
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
M
mcp.aka.page
mcp.aka.page
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
D
Darwin Agentic Cloud — verifiable compute for AI agents
darwin-agentic-cloud.fly.dev
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
Fintel MCP Server | Financial Data for AI Agents
mcp.fintel.io
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
S
Swath API — Every storm. Every property under it. Radar-verified.
swathapi.com
Know every property a hailstorm just hit — verified by NOAA radar, not forecasts. Ask in Claude or ChatGPT, call the REST API, or get a webhook when a storm crosses your territory. Free key in 30 seconds.
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
M
mcp.airtreks.com
mcp.airtreks.com
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
SAP MCP Server | OOBE Protocol
mcp.sap.oobeprotocol.ai
Hosted Solana-native MCP gateway for Synapse Agent Protocol tools, x402/pay.sh monetization, SNS identity, and agent operations.
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
V
FabTally Valid — validation suite for developers & agents
valid.fabtally.com
One unified per-call validation suite: vat (EU VAT format/checksum + live VIES lookup), iban (mod-97 + bank code), email (syntax + live MX + disposable-domain + role flag), geo (country/state/city ISO lookup), vin (format/check-digit + NHTSA make/model/year). Per-call via x402 (USDC on Base) or a prepaid credit key. Also an MCP server.
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
verdoc.dev
verdoc.dev
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
R
ragbrain-production.up.railway.app
ragbrain-production.up.railway.app
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
G
FabTally Guard — de-risk-a-dollar verification for agents
guard.fabtally.com
Cheap per-call checks an AI agent runs before a costly action: deps-check (CVEs/typosquats before installing), x402-preflight (verify an x402 endpoint before paying it), json-repair (coerce LLM JSON to a schema), url-read (public url to clean Markdown for RAG). Per-call via x402 (USDC on Base) or a prepaid credit key. Also an MCP server.
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
B
FabTally Utility Belt — deterministic micro-utilities for agents
belt.fabtally.com
A bundle of fast, deterministic micro-utilities AI agents call constantly: timezone/DST, cron, iCal RRULE, unit & live currency conversion, safe regex, diff, JSON-Schema validation, hashing/encoding/IDs, date math. Per-call via x402 (USDC on Base) or a prepaid credit key. Also an MCP server.
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
C
FabTally Chain — on-chain monitoring reads for agents
chain.fabtally.com
Cheap per-call on-chain reads for AI agents and devs: ens-expiry (ENS/Basename registration expiry on-chain), gas (live base+priority gas per chain), token-unlocks (next vesting event from DefiLlama), oracle-health (Chainlink feed staleness). Per-call via x402 (USDC on Base) or a prepaid credit key. Also an MCP server. Read-only, not financial advice.
OpenAPI API developer
35
+20 OpenAPI +15 structured API missing +25 llms.txt
PyPI · The Python Package Index
pypi.org
The Python Package Index (PyPI) is a repository of software for the Python programming language.
OpenAPI API developer
35
+20 OpenAPI +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"
Agent Docs
llms.txt OpenAPI spec ai-plugin.json

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