ontarioprotocol.com
Publish your x402 API for agent discovery with an Ontario profile and Bazaar Launch Passport after free validation: public profile, readiness report, Coinbase indexing preflight, five-query buyer-intent audit, optional MCP procurement evidence, badge, distribution metadata, and 30 days of freshness maintenance. Call when you need public launch evidence. Ontario is not Coinbase. Payment buys processing and publication, not placement, ranking, buyers, or safety.
TradingLiveeip155:8453Exactvia cdp
Calls · 30d
8↑ 17%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 19 snapshots so far.
$8.77
Verified settled volume
26 settlements proven x402 by their on-chain EIP-3009 marker.
$0.500
Listed price
As published in the catalog. Always read the live 402 before paying.
8
Calls · 30d
Upstream's own call count for this endpoint, not ours.
5
Unique payers · 30d
Last called 2026-09-19 08:26Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xa2d72aBF2C5e939fdDCA4156B74dE482e03CA3ecThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.5USDC≈ $0.5 USD
on Base · exact scheme
Pay 0.5 USDC on Base to 0xa2d7…CA3ec. The signed payment is good for 1 minute.
- Paid to
- 0xa2d7…CA3ec
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 500000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"quote_id": "489b4f217ff0412fb0f9e8f44fde7ec3",
"resourceUrl": "https://ontarioprotocol.com/api/x402/list-service",
"quote_expires_at": 1789806437
},
"payTo": "0xa2d72aBF2C5e939fdDCA4156B74dE482e03CA3ec",
"amount": "500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"name": "Example Paid API",
"tags": [
"x402",
"agent-api"
],
"method": "POST",
"source": "direct_or_unknown",
"network": "base",
"endpoint": "https://example.com/api/paid",
"owner_url": "https://example.com",
"price_usdc": "0.01",
"buyer_query": "get one concrete result for an autonomous agent",
"description": "Return one concrete result for an autonomous agent after x402 payment.",
"mcp_remote_url": "https://example.com/mcp",
"mcp_server_name": "io.github.example/paid-tool",
"mcp_server_json_url": "https://registry.modelcontextprotocol.io/v0.1/servers?search=io.github.example%2Fpaid-tool"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"example": {
"listing": {
"id": "lst_example",
"name": "Example Paid API",
"publication": {
"status": "paid_submission_processed",
"paid_submission": true,
"indexable_profile": true
},
"verification_status": "ready"
},
"provider_next_steps": {
"schema": "ontario.provider_distribution_follow_up.v1",
"bazaar_launch_passport": {
"schema": "ontario.bazaar_launch_passport.v1",
"status": "complete"
},
"strict_discovery_ready": true,
"agent_tool_procurement_passport": {
"schema": "ontario.agent_tool_procurement_passport.v1",
"status": "complete"
}
}
}
}
},
"schema": {
"type": "object",
"required": [
"input",
"output"
],
"properties": {
"input": {
"type": "object",
"required": [
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"name",
"description",
"endpoint",
"price_usdc"
],
"properties": {
"name": {
"type": "string",
"maxLength": 120,
"minLength": 1,
"description": "Public service name shown on the provider profile."
},
"tags": {
"type": "array",
"items": {
"type": "string",
"maxLength": 48
},
"maxItems": 12
},
"asset": {
"type": "string"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE"
],
"type": "string",
"default": "POST"
},
"source": {
"enum": [
"coinbase_bazaar",
"direct_or_unknown",
"github",
"google_search",
"internal_navigation",
"mcp_registry",
"other_search"
],
"type": "string",
"description": "Optional privacy-safe acquisition bucket used only for aggregate funnel attribution; URLs and search queries are not retained."
},
"network": {
"type": "string",
"description": "Public endpoint network, for example base or eip155:8453."
},
"category": {
"type": "string",
"maxLength": 80
},
"endpoint": {
"type": "string",
"format": "uri",
"description": "Provider-owned public HTTPS x402 endpoint."
},
"owner_url": {
"type": "string",
"format": "uri"
},
"price_usdc": {
"type": "string",
"pattern": "^[0-9]+(?:\\.[0-9]{1,6})?$",
"description": "Public endpoint price in USDC."
},
"buyer_query": {
"type": "string",
"maxLength": 160,
"minLength": 3,
"description": "One public buyer task used to generate the five-query Bazaar retrieval audit. Never include credentials or private customer text."
},
"description": {
"type": "string",
"maxLength": 1000,
"minLength": 1,
"description": "Factual buyer-facing description of the paid outcome."
},
"price_atomic": {
"type": "integer",
"minimum": 0
},
"owner_contact": {
"type": "string",
"description": "Optional private operator contact; never published."
},
"mcp_remote_url": {
"type": "string",
"format": "uri",
"maxLength": 500,
"description": "Optional public MCP remote. Ontario runs read-only initialize and tools/list; it does not invoke tools or send credentials or payment headers."
},
"mcp_server_name": {
"type": "string",
"maxLength": 180,
"description": "Optional exact MCP Registry server name used to select one record."
},
"mcp_server_json_url": {
"type": "string",
"format": "uri",
"maxLength": 500,
"description": "Optional public MCP Registry record or exact-search JSON URL. Queries are stripped from public evidence."
}
}
}
}
},
"output": {
"type": "object",
"required": [
"example"
],
"properties": {
"example": {
"type": "object",
"additionalProperties": true
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-19 08:26Z
- Last indexed by Roundhouse
- 2026-09-24 17:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-14 03:16Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 405
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 19 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service ontarioprotocol.com and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=ontarioprotocol.com' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://ontarioprotocol.com/api/x402/list-service, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.