# AgentIndex

A static directory of x402-enabled agent services: APIs, tools, paywalls, and infrastructure that agents can pay per request.

Agents that can pay for what they use need services that can charge for what they provide. AgentIndex catalogs APIs, tools, paywalls, and infrastructure that speak the x402 payment protocol, so builders can find paid endpoints without accounts, API keys, or subscriptions.

New here? Read [what is x402?](https://x402looker.com/what-is-x402/) or [submit a service](https://x402looker.com/submit/).

## Browse by category

- [Data APIs](https://x402looker.com/category/data-apis/) (21 listed): Structured data endpoints that agents can query and pay for per request over x402.
- [Content Paywalls](https://x402looker.com/category/content-paywalls/) (1 listed): Publishers and archives that unlock individual articles or reports for a micropayment.
- [MCP Tools](https://x402looker.com/category/mcp-tools/) (4 listed): Hosted MCP servers and tool gateways that charge agents for each tool call.
- [Search & Retrieval](https://x402looker.com/category/search-retrieval/) (2 listed): Search and retrieval APIs that return ranked results or cleaned documents for a per-query fee.
- [Finance & Trading](https://x402looker.com/category/finance-trading/) (39 listed): Market data, signals, and analytics services priced for autonomous trading agents.
- [Infrastructure & Facilitators](https://x402looker.com/category/infrastructure-facilitators/) (1 listed): Facilitators, relays, and settlement infrastructure that keep x402 payments moving.
- [Media Generation](https://x402looker.com/category/media-generation/) (2 listed): Image, audio, and video generation services sold per generation or per unit of output.
- [Commerce](https://x402looker.com/category/commerce/) (0 listed): Storefronts and checkout services that let agents buy digital or physical goods with x402.
- [Identity Verification](https://x402looker.com/category/identity-verification/) (0 listed): KYC, attestation, and personhood checks that agents can purchase on demand.
- [Other](https://x402looker.com/category/other/) (30 listed): x402-enabled services that do not fit neatly into any other category.

## Featured x402 services

- [1 dollar (USD1) - x420.dev](https://x402looker.com/service/1-dollar-usd1-x420-dev/): this coin will go up to 1 usd.
- [ACP - Virtuals Protocol](https://x402looker.com/service/acp-virtuals-protocol/): Virtuals Protocol ACP Job Payment Service - Pay for ACP jobs using x402 protocol.
- [Agent Neo](https://x402looker.com/service/agent-neo/): Agent Neo | An Agent Infrastructure OS to turn raw Solana DEX intelligence into machine-optimized data feeds (Pills) via x402.