MCP MeasureMCP Measure

index observed

PayAI x402 Facilitator

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

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
58%
Naming quality
100%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~443Tokens (tool definitions)
~518 BTypical response size
Minimal attention impact (0.35% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "facilitator": {
      "url": "https://facilitator.payai.network/mcp"
    }
  }
}

Remote endpoints

https://facilitator.payai.network/mcpstreamable-http

What it can do

Tool inventory

Tools (5)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢get_supported

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.

Input Schema

{
  "type": "object",
  "properties": {},
  "required": [],
  "additionalProperties": false
}
⚪verify_payment(paymentPayload, paymentRequirements, serverExtensions, x402Version)

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

Input Schema

{
  "type": "object",
  "properties": {
    "paymentPayload": {
      "type": "object"
    },
    "paymentRequirements": {
      "type": "object"
    },
    "serverExtensions": {
      "type": "object"
    },
    "x402Version": {
      "type": "integer",
      "enum": [
        1,
        2
      ]
    }
  },
  "required": [
    "paymentPayload",
    "paymentRequirements"
  ],
  "additionalProperties": false
}
⚪settle_payment(paymentPayload, paymentRequirements, serverExtensions, x402Version)

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.

Input Schema

{
  "type": "object",
  "properties": {
    "paymentPayload": {
      "type": "object"
    },
    "paymentRequirements": {
      "type": "object"
    },
    "serverExtensions": {
      "type": "object"
    },
    "x402Version": {
      "type": "integer",
      "enum": [
        1,
        2
      ]
    }
  },
  "required": [
    "paymentPayload",
    "paymentRequirements"
  ],
  "additionalProperties": false
}
🟢list_discovery_resources(limit, offset)

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.

Input Schema

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 1000
    },
    "offset": {
      "type": "integer",
      "minimum": 0
    }
  },
  "required": [],
  "additionalProperties": false
}
🟢get_discovery_stats

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.

Input Schema

{
  "type": "object",
  "properties": {},
  "required": [],
  "additionalProperties": false
}

Recommended Prompts

retrieve_data
Get details about [item] from PayAI x402 Facilitator
Expected tools: get_supported
fetch_info
Fetch [information type] using PayAI x402 Facilitator
Expected tools: get_supported
list_items
List all [items] available in PayAI x402 Facilitator
Expected tools: list_discovery_resources
browse_collection
Show me the [collection] from PayAI x402 Facilitator
Expected tools: list_discovery_resources
explore_workflow
List available [items], then get details for each one using PayAI x402 Facilitator
Expected tools: list_discovery_resourcesget_supported

Community

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Evidence

Recent observations

verifiedversion not recorded5 tools
verifiedversion not recorded5 tools