Find services AI agents can actually use.
Search the agentic web for free. Compare services, APIs, and tools by machine-readable readiness. Organic rank is based on readiness, never payment.
6014
Sites Indexed
40
Avg Score
All
Top 100
Newest
MCP Servers
AI Tools
Developer
Data
Finance
E-Commerce
Productivity
Security
Health
5763 sites found for "payment API"
A
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
A
Asana
app.asana.com
Create projects and tasks in Asana to plan and organize your work.
ai-plugin
API
productivity
35
+20 ai-plugin
+15 structured API
missing +25 llms.txt
Webotee
app.webotee.com
US Amazon (amazon.com) seller & brand intelligence — historical trends, seller networks, brand discovery, and competitive scoring.
OpenAPI
API
other
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
B
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
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
Chat Expasy
chat.expasy.org
Assistant to navigate resources from the Swiss Institute of Bioinformatics (SIB).
OpenAPI
API
communication
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
Contendeo — AI Video Comprehension for Claude
contendeo.app
Paste any video URL into Claude. Get timestamped transcript, visual context, chart extraction, OCR, and entity mapping. YouTube, Instagram, Vimeo, Twitter/X, TikTok.
OpenAPI
API
ai-tools
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
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
Datafold | Automate Data Engineering — AI-Powered Migrations, Optimization & Development
datafold.com
Datafold is the data engineering automation platform. AI-powered migrations delivered in weeks with guaranteed outcomes, plus data quality tools for CI/CD testing, monitoring, and AI agent integrations via MCP.
API
AI bots
Schema.org
MCP
data
35
+15 structured API
+10 MCP
missing +25 llms.txt
ZizkaDB — Operational database for AI agents
db.zizka.ai
Operational Database For AI Agents. Open source. Self-host free or managed cloud.
OpenAPI
API
data
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
D
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
Developer Platform | LanOnasis Documentation
docs.lanonasis.com
Build applications and AI agents with durable memory, semantic search, MCP tools, and supported developer clients.
OpenAPI
API
developer
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
FirstData - Global Authoritative Data Source Knowledge Base | MCP Server
firstdata.deepminer.com.cn
FirstData provides 290+ authoritative data sources for MCP and AI agents, including government data, academic research, and verified datasets. Build smarter AI applications with trusted data.
OpenAPI
API
developer
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
G
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
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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