gblin.digital
GBLIN Protocol: one token holding cbBTC, WETH and USDC on Base, built for AI agents and treasuries. Mint and redeem directly from the contract at net asset value: the same price at any size, 0.10% to mint, 0.50% a year, and nothing taken when you redeem.
OtherLiveeip155:8453Exactvia cdp
Calls · 30d
5↑ 3.6%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 25 snapshots so far.
$1.15
Verified settled volume
268 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0045
Listed price
As published in the catalog. Always read the live 402 before paying.
5
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-23 19:22Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x0ebA5d314F4f5Dcb7A094953Fa9311a45172dd1BThe 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.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0ebA5d314F4f5Dcb7A094953Fa9311a45172dd1B",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://gblin.digital/api/x402/seal",
"mimeType": "application/json",
"description": "AI Action Receipts: seal the HASHES of an AI action (input/output as hashes; your action label + meta are published) into GBLIN's signed append-only transparency log. Portable receipt: Ed25519 signature + RFC 6962 inclusion proof + C2SP signed checkpoint; root anchored daily on Base (EAS). Proves existence and time — not a compliance certificate. Free reads + demo: gblin-mcp.gblin-mcp-worker.workers.dev/log. Offline verifier: github.com/gblinproject/gblin-treasury-risk-regime"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"action": "summarise-contract",
"input_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
},
"type": "http",
"method": "GET",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"leaf": "<base64 sha256(0x00 || canonical)>",
"root": "<base64 Merkle root>",
"index": 42,
"format": "gblin-receipt/v1",
"verify": "offline: see verify-receipt.mjs in github.com/gblinproject/gblin-treasury-risk-regime (zero deps)",
"payload": {
"v": 1,
"ts": "2026-08-30T09:00:00.000Z",
"log": "gblin.digital/receipts-log",
"index": 42,
"action": "summarise-contract",
"input_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"output_hash": null
},
"signature": "<base64 Ed25519 over the canonical record>",
"tree_size": 43,
"checkpoint": "<C2SP signed note>",
"verifier_key": "gblin.digital/receipts-log+00c6e18c+...",
"inclusion_proof": [
"<base64 node>",
"<base64 node>"
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"action",
"input_hash"
],
"properties": {
"meta": {
"type": "string",
"maxLength": 512,
"description": "Extra JSON object as a string (optional). PUBLISHED."
},
"tool": {
"type": "string",
"maxLength": 128,
"description": "Tool or model used (optional). PUBLISHED."
},
"action": {
"type": "string",
"maxLength": 128,
"description": "Short public label for what the AI did. PUBLISHED in the log: identifiers only, never secrets."
},
"agent_id": {
"type": "string",
"maxLength": 128,
"description": "Your agent identifier (optional). PUBLISHED."
},
"input_hash": {
"type": "string",
"pattern": "^(0x)?[0-9a-fA-F]{64}$",
"description": "sha256 of your input, 64 hex chars (0x prefix optional)"
},
"output_hash": {
"type": "string",
"pattern": "^((0x)?[0-9a-fA-F]{64})?$",
"description": "sha256 of your output, 64 hex chars (optional)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"gblin_info": {
"docs": "https://gblin.digital/api/x402/llms.txt",
"note": "Reading is free; only the paid resource above requires payment.",
"free_market_risk_regime": "https://gblin-mcp.gblin-mcp-worker.workers.dev/regime",
"x402_uptime_observatory": "https://gblin-mcp.gblin-mcp-worker.workers.dev/observatory"
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.0045USDC≈ $0.0045 USD
on Base · exact scheme
Pay 0.0045 USDC on Base to 0x0ebA…2dd1B. The signed payment is good for 5 minutes.
- Paid to
- 0x0ebA…2dd1B
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 4500 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0ebA5d314F4f5Dcb7A094953Fa9311a45172dd1B",
"amount": "4500",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"action": "summarise-contract",
"input_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"leaf": "<base64 sha256(0x00 || canonical)>",
"root": "<base64 Merkle root>",
"index": 42,
"format": "gblin-receipt/v1",
"verify": "offline: see verify-receipt.mjs in github.com/gblinproject/gblin-treasury-risk-regime (zero deps)",
"payload": {
"v": 1,
"ts": "2026-08-30T09:00:00.000Z",
"log": "gblin.digital/receipts-log",
"index": 42,
"action": "summarise-contract",
"input_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"output_hash": null
},
"signature": "<base64 Ed25519 over the canonical record>",
"tree_size": 43,
"checkpoint": "<C2SP signed note>",
"verifier_key": "gblin.digital/receipts-log+00c6e18c+...",
"inclusion_proof": [
"<base64 node>",
"<base64 node>"
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"action",
"input_hash"
],
"properties": {
"meta": {
"type": "string",
"maxLength": 512,
"description": "Extra JSON object as a string (optional). PUBLISHED."
},
"tool": {
"type": "string",
"maxLength": 128,
"description": "Tool or model used (optional). PUBLISHED."
},
"action": {
"type": "string",
"maxLength": 128,
"description": "Short public label for what the AI did. PUBLISHED in the log: identifiers only, never secrets."
},
"agent_id": {
"type": "string",
"maxLength": 128,
"description": "Your agent identifier (optional). PUBLISHED."
},
"input_hash": {
"type": "string",
"pattern": "^(0x)?[0-9a-fA-F]{64}$",
"description": "sha256 of your input, 64 hex chars (0x prefix optional)"
},
"output_hash": {
"type": "string",
"pattern": "^((0x)?[0-9a-fA-F]{64})?$",
"description": "sha256 of your output, 64 hex chars (optional)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-23 19:22Z
- Last indexed by Roundhouse
- 2026-09-24 15:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 00:15Z
- x402 version
- 2
- Max timeout
- 300s
- 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. 25 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 gblin.digital 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=gblin.digital' 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://gblin.digital/api/x402/seal, 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.