costheta
Verifiable physical randomness from cosmic-ray detections. Free beacon, paid signed decisions.
Should I use this
Quality & Safety
Findings (1)
- LOWTool 'costheta_decide' description lacks action verbin costheta_decide
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
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": {
"costheta": {
"url": "https://costheta.dev/mcp"
}
}
}Remote endpoints
https://costheta.dev/mcpstreamable-httpWhat it can do
Tool inventory
Tools (3)
⚪costheta_random(n_options)
Free public random outcome anchored to the latest signed cosmic-ray coincidence pulse. This is a shared beacon: every caller sees the same latest signed pulse until the next muon arrives. For private commitments and retry-safe paid certificates, use costheta_decide.
Input Schema
{
"type": "object",
"properties": {
"n_options": {
"type": "integer",
"minimum": 2,
"maximum": 1000000,
"default": 2,
"description": "Number of equally indexed outcomes. Result is in [0, n_options)."
}
},
"additionalProperties": false
}⚪costheta_decide(commitment, idempotency_key, n_options)
Paid x402 Base mainnet tool: commit-and-reveal decision with a signed certificate. Requires PAYMENT-SIGNATURE and idempotency_key.
Input Schema
{
"type": "object",
"properties": {
"commitment": {
"type": "string",
"description": "Caller commitment, usually sha256:<hex>."
},
"idempotency_key": {
"type": "string",
"description": "Stable retry key. Same key + commitment returns the same paid result."
},
"n_options": {
"type": "integer",
"minimum": 2,
"maximum": 1000000,
"default": 2
}
},
"required": [
"commitment",
"idempotency_key",
"n_options"
],
"additionalProperties": false
}⚪costheta_witness(commitment, idempotency_key)
Paid x402 Base mainnet tool: witness a caller commitment against a signed pulse certificate. Requires PAYMENT-SIGNATURE and idempotency_key.
Input Schema
{
"type": "object",
"properties": {
"commitment": {
"type": "string",
"description": "Caller commitment, usually sha256:<hex>."
},
"idempotency_key": {
"type": "string",
"description": "Stable retry key. Same key + commitment returns the same paid result."
}
},
"required": [
"commitment",
"idempotency_key"
],
"additionalProperties": false
}Community
Evidence