PayAI x402 Facilitator

network.payaiPublished by payai.networkOfficial publisherv2.0.1Updated Nov 8, 2026

Verify and settle x402 stablecoin payments; browse the PayAI Bazaar of x402-payable resources.

VerifiedStreamable HTTPWeb executableFinance Business & Commerce

Server details

Identifier: network.payai/facilitator
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Sep 16, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to payai.network, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Remote x402 facilitator that lets an assistant check supported payment networks, verify signed stablecoin payments, settle them on-chain, and browse payable…

What you can do: Look up supported payment networks, schemes, assets and facilitator addresses
Verify a signed x402 payment payload against payment requirements without moving funds
Settle a payment on-chain, idempotent per signed payload, with polling on pending outcomes
Browse the PayAI Bazaar catalog of x402-payable APIs, MCP tools and agent services with paging
Read aggregate catalog and settlement statistics
When to use it: Use it when building or operating x402 payment flows: checking live capabilities before constructing payment requirements, validating a signed payload, or actually settling a stablecoin payment. Also useful for discovering payable APIs and agent services in the Bazaar catalog.
Requirements: A remote streamable HTTP endpoint at facilitator.payai.network; no package, environment variables or headers are declared. Network access to the endpoint is needed, and settlement requires a signed x402 payment payload and payment requirements.

Before you install

settle_payment broadcasts on-chain and moves real funds, so any call spends money; verify first and confirm the amount and recipient. Treat a settlement_pending error as unresolved and poll with identical arguments rather than resubmitting changed ones. Payment payloads and requirements are sent to a third-party facilitator.

Installation

In SourceWeft

Open PayAI x402 Facilitator in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/network.payai%2Ffacilitator/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "payai-x402-facilitator": {
      "type": "http",
      "url": "https://facilitator.payai.network/mcp"
    }
  }
}

README

This repository has no README.

Tools

get_supported

Get supported payment kinds

Returns the payment networks, schemes, assets, and facilitator addresses currently supported by PayAI. Use it before constructing payment requirements when you need live capability data.

Takes no parameters.

verify_payment

Verify a signed x402 payment

Verifies a signed x402 payment payload against the supplied payment requirements. It checks validity but moves no funds.

Parametersx402VersionpaymentPayloadrequiredserverExtensionspaymentRequirementsrequired

settle_payment

Settle a signed x402 payment

Broadcasts the payment on-chain and moves real funds; it is idempotent per signed payload, so resubmitting the identical payload returns the recorded outcome. Treat errorReason "settlement_pending" as unresolved and call again with the identical arguments to poll.

Parametersx402VersionpaymentPayloadrequiredserverExtensionspaymentRequirementsrequired

list_discovery_resources

List Bazaar discovery resources

Lists x402-payable resources published in the PayAI Bazaar catalog. Use limit and offset to page through APIs, MCP tools, and agent services available for discovery.

Parameterslimitoffset

get_discovery_stats

Get Bazaar discovery statistics

Returns aggregate statistics for the PayAI Bazaar catalog and its settlement activity. Use it for a compact view of catalog size and payment volume rather than individual resources.

Takes no parameters.

Version history

v2.0.1LatestOct 1, 2026
v2.0.0Sep 16, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.