Predge · Signed Attestations

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9084f5000e07c7133d6da5ee4f271ab6d1821144",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.predge.io/v1/stakes",
    "description": "Open a PERFORMANCE-STAKED signal: bind a BOUNDED, pre-funded rebate to one ed25519-signed live call (by content_hash) while its market is still OPEN — skin-in-the-game, not insurance. rebate_cap_usd is capped server-side, so Predge's adverse-selection loss per signal can never exceed the cap. On settlement the call's welded outcome decides the rebate (WRONG => owed the cap, CORRECT => kept); an owed rebate is an accounting entry only — NO on-chain transfer, payout is owner-gated and out-of-band. Emits a signed signal-stake envelope; verify free at GET /verify, read state free at GET /v1/stakes/:id. Body: {content_hash, buyer, rebate_cap_usd?}.",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 60
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {},
    "payTo": "9dxMRRtC7RKZH5rFZpUywjmnQ87H9qHhtW43u5LYmpV",
    "amount": "20000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "mimeType": "application/json",
    "resource": "https://api.predge.io/v1/stakes",
    "description": "Open a PERFORMANCE-STAKED signal: bind a BOUNDED, pre-funded rebate to one ed25519-signed live call (by content_hash) while its market is still OPEN — skin-in-the-game, not insurance. rebate_cap_usd is capped server-side, so Predge's adverse-selection loss per signal can never exceed the cap. On settlement the call's welded outcome decides the rebate (WRONG => owed the cap, CORRECT => kept); an owed rebate is an accounting entry only — NO on-chain transfer, payout is owner-gated and out-of-band. Emits a signed signal-stake envelope; verify free at GET /verify, read state free at GET /v1/stakes/:id. Body: {content_hash, buyer, rebate_cap_usd?}.",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "buyer": "agent:copybot-7",
          "content_hash": "9f8e7d6c5b4a39281706f5e4d3c2b1a09f8e7d6c5b4a39281706f5e4d3c2b1a09",
          "rebate_cap_usd": 0.1
        },
        "type": "http",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "id": "0b5e7c1e-0000-4000-8000-000000000000",
          "buyer": "agent:copybot-7",
          "stake": {
            "kind": "signal-stake",
            "algorithm": "ed25519",
            "canonical": "{…}",
            "signature": "…"
          },
          "status": "open",
          "currency": "USD",
          "content_hash": "9f8e7d6c5b4a39281706f5e4d3c2b1a09f8e7d6c5b4a39281706f5e4d3c2b1a09",
          "capital_safety": "Bounded & capital-safe: no funds move automatically. rebate_cap_usd bounds Predge's per-signal exposure; an 'owed' rebate is an accounting entry a human settles out-of-band. Not insurance, not a guaranteed payout.",
          "rebate_cap_usd": 0.1,
          "stake_price_usd": 0.02
        }
      }
    },
    "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": {
              "properties": {
                "buyer": {
                  "type": "string",
                  "description": "Buyer id (1-200 chars, [A-Za-z0-9._:@-]) — idempotency key with content_hash"
                },
                "content_hash": {
                  "type": "string",
                  "description": "64-hex sha256 of an OPEN signed call's canonical (from POST /v1/calls)"
                },
                "rebate_cap_usd": {
                  "type": "number",
                  "description": "Optional requested rebate cap (USD); clamped to the server bound"
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "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

—

Last indexed by Roundhouse

2026-09-24 11:15Z

Last enriched (probe, favicon, geo)

2026-09-18 20:15Z

x402 version

2

Max timeout

60s

Liveness probe

HTTP 404