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x402engine — Pay-per-call APIs for AI Agents
125 production APIs behind HTTP 402 micropayments. 87 LLMs, Kling V3 and Hailuo video generation, image generation, code execution, travel search, web scrapi...
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89 % |
|
kas402 — pay-per-call APIs for AI agents
Pay-per-call APIs for AI agents. Speech, image, search, scraping — pay with USDC (x402) or Lightning (L402). No accounts, no API keys.
|
86 % |
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srch.best — One Agent Data API over x402
One agent-first API for live-web search, clean contents, eighteen structured-data operations, mixed batching, opaque cursors, and accountless x402 payments.
|
85 % |
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chipscan — on-chain due diligence for AI agents
Meme-token security audits and chip-structure lifecycle analysis, sold per-call to AI agents via x402. USDC on Base. No account, no API key.
|
85 % |
|
Blocks402 — x402 Unlocks
A minimal x402 layer for one-time unlocks
|
85 % |
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x402inference — pay-per-token inference, no account, no signup
OpenAI-compatible inference gateway paid in USDC on Base via x402 batch-settlement. No account, no whitelist — open an escrow channel with one deposit and pa...
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85 % |
|
x402 APIs for AI agents: 50 deterministic HTTP utilities, paid per call | grist.tools
x402 API catalogue for AI agents: 50 deterministic HTTP endpoints, paid per call with no account and no API key. One endpoint does one thing, always the same...
|
85 % |
|
OpenLib x402
AI Native X402 open-source library for Solana
|
84 % |
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Sharp APIs for autonomous software · x402labs
Account-free, pay-per-call APIs for web intelligence and agent workflows.
|
84 % |
|
the402, x402 endpoint directory
14482 x402 endpoints that answer with a payment challenge, each called directly, with the price they quote, network and spec dialect.
|
84 % |
|
fx402 - fx, with a wallet
A fork of fx, the tiny native coding agent, with x402 payments built in. It discovers paid endpoints, asks before it spends, and pays in USDC on Base.
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84 % |
|
x402pay — Understanding the x402 payment protocol
A clear, independent guide to x402: how the HTTP 402 payment protocol works, who's building with it, and how to choose between facilitators and wallets.
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83 % |
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util.beauty — metered web utilities for developers and AI agents
Metered web utilities for developers and AI agents: browser screenshot and PDF, crypto, DNS and net tools. Pay per request with x402 (USDC on Base) or prepai...
|
83 % |
|
0200project, Machine-native tools for AI agents
base-transaction-decoder explains any Base transaction, and tells your agent which fields an attacker controls and when a safety check did not run. Per call...
|
83 % |
|
TariffMonkee: Pay-per-call APIs for AI agents
Small, single-purpose web data APIs that AI agents pay for per call in USDC over the x402 protocol (HTTP 402). No accounts, no API keys, no subscriptions.
|
83 % |
|
pursekeeper: an AI agent with a Nano wallet
pursekeeper is an autonomous AI agent with a Nano wallet. Its job: make Nano the currency software agents use with each other. Every payment and decision is...
|
83 % |
|
FetchWeb — Agent Context Optimizer & Pay-per-call Web Extraction
Web context services AI agents can buy per call in USDC over x402: metadata probes from $0.001, page extraction from $0.002, and context fitted to a token bu...
|
82 % |
|
Larkin — authorization for x402 agent payments
Your API takes x402 payments. Larkin answers who is actually paying — trust scoring + signed receipts for the agent economy.
|
82 % |
|
Clink Forge — machine-purchasable data with cryptographic provenance
Pay per call over x402. USDC on Base, no account, no API key. Government-sourced data products at $0.001–$0.05 per call, every response signed and provenance...
|
82 % |
|
payloadly: Convert, validate & format data, entirely in your browser
Free developer tools for JSON, CSV, YAML, XML, JWT, timestamps, hex, cron, UUIDs and more. 100% client-side: nothing you paste is uploaded. REST API for auto...
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82 % |
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