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.
6015
Sites Indexed
40
Avg Score
All
Top 100
Newest
MCP Servers
AI Tools
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5764 sites found for "payment API"
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
H
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
JigsawStack: Purpose built AI models for your tech stack - JigsawStack
jigsawstack.com
Custom small models trained for specialized use cases powered by scalable infrastructure
OpenAPI
API
developer
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
L
Lightning Tools | Lightning Tools
lightningapi.tools
Pay-per-call tools for AI agents. Buy credits with Bitcoin Lightning, then call email validation, phone validation, QR code generation, readability extraction, and calculator tools.
ai-plugin
API
ai-tools
35
+20 ai-plugin
+15 structured API
missing +25 llms.txt
Marketcaper - Cross Market Cap Comparer
marketcaper.com
Compare stocks, ETFs, funds, crypto, billionaire net worth, GDP, and fiat currencies by market cap, AUM, GDP, FX market cap, and net worth.
OpenAPI
Schema.org
MCP
other
35
+20 OpenAPI
+10 MCP
missing +25 llms.txt
M
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
M
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
M
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
M
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
M
MCP Data Converter — Convert Any Data Format, Instantly
mcp-converter.tnkng.com
Convert between 16 data formats with 240 conversion pairs. JSON, CSV, XML, YAML, PDF, Excel, DOCX and more. MCP-native, AI agent ready, production hardened.
OpenAPI
API
developer
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
M
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
M
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
M
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
M
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
M
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
M
35
+20 OpenAPI
+15 structured API
missing +25 llms.txt
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
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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