AgentIndex
A static directory of x402-enabled agent services.
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? or submit a service to be listed.
Browse by category
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Data APIs
21 listed
Structured data endpoints that agents can query and pay for per request over x402.
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Content Paywalls
1 listed
Publishers and archives that unlock individual articles or reports for a micropayment.
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MCP Tools
4 listed
Hosted MCP servers and tool gateways that charge agents for each tool call.
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Search & Retrieval
2 listed
Search and retrieval APIs that return ranked results or cleaned documents for a per-query fee.
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Finance & Trading
39 listed
Market data, signals, and analytics services priced for autonomous trading agents.
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Infrastructure & Facilitators
1 listed
Facilitators, relays, and settlement infrastructure that keep x402 payments moving.
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Media Generation
2 listed
Image, audio, and video generation services sold per generation or per unit of output.
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Commerce
0 listed
Storefronts and checkout services that let agents buy digital or physical goods with x402.
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Identity Verification
0 listed
KYC, attestation, and personhood checks that agents can purchase on demand.
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Other
30 listed
x402-enabled services that do not fit neatly into any other category.
Featured x402 services
A deterministic sample from the current directory dataset.
- 1 dollar (USD1) - x420.dev — this coin will go up to 1 usd.
- ACP - Virtuals Protocol — Virtuals Protocol ACP Job Payment Service - Pay for ACP jobs using x402 protocol.
- Agent Neo — Agent Neo | An Agent Infrastructure OS to turn raw Solana DEX intelligence into machine-optimized data feeds (Pills) via x402.