Linkrra Synap: Open-Model LLMs
Linkrra runs open AI models on GPUs it operates, adds vetted zero-retention providers, serves them all through one OpenAI-compatible API, and builds automations on top.
InferenceLiveeip155:8453Exactvia facilitator:payAI
InferenceLlmChat-completionOpenai-compatibleAi-compute
Calls · 30d
2↑ 7.7%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 27 snapshots so far.
$1.75
Verified settled volume
303 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
–
Calls · 30d
Upstream's own call count for this endpoint, not ours.
–
Unique payers · 30d
Never called
$0.002
Upstream on-chain volume
2 transactions, checked 2026-11-01 00:45Z
Paid to
0xAA0a350f6080940c138A8A50C0Fa8c8387782eb4The wallet the 402 directs payment to. Its full payment record 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.
Recent payments · which agents last used it
Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.
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-SIGNATURE header is required",
"quote": {
"note": "Price covers up to 4096 output tokens at this model's own per-token price (see GET /v1/models), converted at $0.2273 per million credits, minimum $0.001 per paid call. Unused tokens are not refunded in v1: the difference is credited to your paying wallet address on the topup ledger, to spend on another paid request.",
"model": "meta/muse-glimmer-30b",
"amountUsd": 0.004506,
"maxOutputTokens": 4096,
"minimumChargeUsd": 0.001,
"pricePerMillionCreditsUsd": 0.2273
},
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAA0a350f6080940c138A8A50C0Fa8c8387782eb4",
"amount": "4506",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://pool.linkrra.com/api/billing/x402/models/muse-glimmer-30b/chat/completions",
"tags": [
"inference",
"llm",
"chat-completion",
"openai-compatible",
"ai-compute"
],
"iconUrl": "https://linkrra.com/favicon-512.png",
"mimeType": "application/json",
"description": "Linkrra Synap: Meta Muse Glimmer 30B (model \"meta/muse-glimmer-30b\") - agentic reasoning + tool use (text). OpenAI-compatible chat completions for this one model, 128K context, served only on dedicated GPUs we operate, 4-bit AWQ. Pay per call in USDC on Base via x402 - no account, no API key. From $0.001 per call, usage-priced per token above that (GET /v1/models). Streaming supported. Product site: https://synap.linkrra.com",
"serviceName": "Linkrra Synap: Open-Model LLMs"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"model": "meta/muse-glimmer-30b",
"stream": false,
"messages": [
{
"role": "user",
"content": "Write a Python function that reverses a string"
}
],
"max_tokens": 256
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": "chatcmpl-...",
"model": "meta/muse-glimmer-30b",
"usage": {
"total_tokens": 28,
"prompt_tokens": 16,
"completion_tokens": 12
},
"object": "chat.completion",
"choices": [
{
"message": {
"role": "assistant",
"content": "def reverse(s):\n return s[::-1]"
}
}
],
"payment": {
"network": "eip155:8453",
"paidUsd": 0.001,
"transaction": "0x..."
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input",
"output"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"messages"
],
"properties": {
"model": {
"enum": [
"meta/muse-glimmer-30b"
],
"type": "string",
"description": "Optional: this endpoint always runs meta/muse-glimmer-30b."
},
"stream": {
"type": "boolean",
"default": false,
"description": "true = stream OpenAI-format Server-Sent Events."
},
"messages": {
"type": "array",
"items": {
"type": "object",
"required": [
"role",
"content"
],
"properties": {
"role": {
"enum": [
"system",
"user",
"assistant",
"tool"
],
"type": "string"
},
"content": {
"description": "Text, or an array of OpenAI content parts."
}
}
},
"examples": [
[
{
"role": "user",
"content": "Write a Python function that reverses a string"
}
]
],
"minItems": 1,
"description": "OpenAI-format chat history, oldest first: [{role, content}]."
},
"max_tokens": {
"type": "integer",
"default": 4096,
"maximum": 4096,
"minimum": 1,
"description": "Completion token cap. The price is quoted for the prompt plus this cap."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type",
"example"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"model": {
"type": "string",
"description": "The model that answered."
},
"usage": {
"type": "object",
"description": "Tokens billed: prompt, completion, total."
},
"choices": {
"type": "array",
"description": "choices[0].message.content is the reply."
},
"payment": {
"type": "object",
"description": "USDC paid + Base tx hash; any unused amount stays credited to the payer."
}
}
}
},
"description": "200 chat.completion (SSE if stream=true). 402 payment required or insufficient (challenge in PAYMENT-REQUIRED). 202 settlement pending. 400 invalid body or payment header. 404 model not offered. 409 payment already used. 503 no node serving the model, nothing charged. 500/502 facilitator, chain or model-server error; if inference fails after settlement the amount stays credited to the paying wallet."
}
}
}
},
"builder-code": {
"info": {
"a": "bc_66yn2s8l"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
}
},
"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.
0.001USDC≈ $0.001 USD
on Base · exact scheme
Pay 0.001 USDC on Base to 0xAA0a…82eb4. The signed payment is good for 2 minutes.
- Paid to
- 0xAA0a…82eb4
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAA0a350f6080940c138A8A50C0Fa8c8387782eb4",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"model": "meta/muse-glimmer-30b",
"stream": false,
"messages": [
{
"role": "user",
"content": "Write a Python function that reverses a string"
}
],
"max_tokens": 256
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": "chatcmpl-...",
"model": "meta/muse-glimmer-30b",
"usage": {
"total_tokens": 28,
"prompt_tokens": 16,
"completion_tokens": 12
},
"object": "chat.completion",
"choices": [
{
"message": {
"role": "assistant",
"content": "def reverse(s):\n return s[::-1]"
}
}
],
"payment": {
"network": "eip155:8453",
"paidUsd": 0.001,
"transaction": "0x..."
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input",
"output"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"messages"
],
"properties": {
"model": {
"enum": [
"meta/muse-glimmer-30b"
],
"type": "string",
"description": "Optional: this endpoint always runs meta/muse-glimmer-30b."
},
"stream": {
"type": "boolean",
"default": false,
"description": "true = stream OpenAI-format Server-Sent Events."
},
"messages": {
"type": "array",
"items": {
"type": "object",
"required": [
"role",
"content"
],
"properties": {
"role": {
"enum": [
"system",
"user",
"assistant",
"tool"
],
"type": "string"
},
"content": {
"description": "Text, or an array of OpenAI content parts."
}
}
},
"examples": [
[
{
"role": "user",
"content": "Write a Python function that reverses a string"
}
]
],
"minItems": 1,
"description": "OpenAI-format chat history, oldest first: [{role, content}]."
},
"max_tokens": {
"type": "integer",
"default": 4096,
"maximum": 4096,
"minimum": 1,
"description": "Completion token cap. The price is quoted for the prompt plus this cap."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type",
"example"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"model": {
"type": "string",
"description": "The model that answered."
},
"usage": {
"type": "object",
"description": "Tokens billed: prompt, completion, total."
},
"choices": {
"type": "array",
"description": "choices[0].message.content is the reply."
},
"payment": {
"type": "object",
"description": "USDC paid + Base tx hash; any unused amount stays credited to the payer."
}
}
}
},
"description": "200 chat.completion (SSE if stream=true). 402 payment required or insufficient (challenge in PAYMENT-REQUIRED). 202 settlement pending. 400 invalid body or payment header. 404 model not offered. 409 payment already used. 503 no node serving the model, nothing charged. 500/502 facilitator, chain or model-server error; if inference fails after settlement the amount stays credited to the paying wallet."
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-31 18:17Z
- Last indexed by Roundhouse
- 2026-11-15 10:16Z
- Last enriched (probe, favicon, geo)
- 2026-11-01 00:45Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 402
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. 27 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 Linkrra Synap: Open-Model LLMs 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=Linkrra%20Synap%3A%20Open-Model%20LLMs' 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://pool.linkrra.com/api/billing/x402/models/muse-glimmer-30b/chat/completions, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.