Generated by API Evangelist
Written by API Evangelist tooling for costheta's API. It is a proposal applied on top of the contract, not a document costheta publishes.
overlay: 1.0.0
info:
title: costheta API overlay
version: 1.0.0
x-provenance:
generated: '2026-11-04'
method: generated
source: https://costheta.dev/llms.txt
extends: ../openapi/_original/costheta-dev-openapi.yml
actions:
- target: $.info
update:
title: costheta API
description: 'Physically anchored, verifiable decisions for AI agents: signed muon pulses, detector state, Ed25519 + ML-DSA verification keys,
certificate verification, an SSE event stream and a native MCP Streamable HTTP endpoint. Paid MCP tools are $0.02 per call settled in USDC
via x402 on Base mainnet (per llms.txt).'
x-generated-title-replaced: FastAPI
- target: $.paths['/stream'].get
update:
description: Server-sent events, one per detector coincidence; muon_id as both id and data. Heartbeat comment :hb every 15 seconds. Reconnect
with Last-Event-ID. Over the connection cap the server returns 503 with Retry-After (per llms.txt). Unsigned liveness signal, not a randomness
source.
tags:
- Stream
- target: $.paths['/v/{muon_id}'].get
update:
description: Verify a certificate by event (muon) id.
tags:
- Certificates
- target: $.paths['/keys'].get
update:
description: Published Ed25519 + ML-DSA verification keys.
tags:
- Keys
- target: $.paths['/pulse/latest'].get
update:
description: Latest signed pulse used by the free public beacon (costheta_random). Public output; not for secret key material.
tags:
- Beacon
- target: $.paths['/mcp'].post
update:
description: 'MCP Streamable HTTP JSON-RPC endpoint (tools: costheta_random, costheta_decide, costheta_witness).'
tags:
- MCP
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