Delta Signal

org.daxfoundation.signal/delta-signal · v0.1.0 · ai-and-media

Delta Signal is healthy: it completed an MCP handshake in 527 ms and exposes 5 tools.

Audio steganography & watermarking. Encode/decode hidden messages that survive YouTube re-encoding.

Endpoint: https://signal.daxfoundation.org/mcp (streamable-http)

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Facts

Users (last 30 days)0
HandshakeHealthy
Auth neededNone
Tool count5
Latency527 ms
Last checked (UTC)2026-10-29T00:50:12.023Z

Health history

Checked (UTC)StatusLatencyError
2026-10-29T00:50:12.023ZHealthy527

Tools (5)

describe_engineFree. Describe Delta Signal: layers, stings, defaults, limits and prices.
preview_cardFree. Render the SSTV signature card image for a message (PNG) so you can see what the picture sting will carry.
render_signatureRender a Delta Signal audio signature (WAV, 48 kHz) that hides your message: in the heartbeat rhythm, as text in the spectrogram, as an inaudible watermark, and optionally as an SSTV picture, a ggwave data chirp or modem tones. Returns a download link (kept 7 days) and a manifest. Survives YouTube-g
decode_audioDecode every Delta Signal layer from a WAV or MP3 file at an https URL: heartbeat cipher, spectral glyph, prime count, watermark (needs the seed used to render), ggwave, modem text and SSTV pictures (returned as PNG).
verify_signatureVerify a Delta Signal audio signature at an https WAV URL: returns which hidden layers are present (found_layers) and whether the audio matches an expected message (matches: true/false, or null if no expected_message given). Cheaper than full decode — use it when you only need to confirm presence or