PriorSeal MCP Server

Install PriorSeal MCP server

claude mcp add --transport http priorseal https://priorseal.xyz/mcp

{
  "mcpServers": {
    "priorseal": {
      "url": "https://priorseal.xyz/mcp"
    }
  }
}

{
  "mcpServers": {
    "priorseal": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://priorseal.xyz/mcp"
      ]
    }
  }
}

{
  "servers": {
    "priorseal": {
      "type": "http",
      "url": "https://priorseal.xyz/mcp"
    }
  }
}

{
  "mcpServers": {
    "priorseal": {
      "serverUrl": "https://priorseal.xyz/mcp"
    }
  }
}

Context tax

Connecting this server adds ~762 tokens of tool definitions to every model turn (lean, 10 tools). Measured 2026-10-19 via its hosted endpoint; o200k tokenizer, worst case for clients that load all tools up front. How we measure

Input prices as of 2026-10-06. Excludes your own prompt and output.

Tools (10)

• priorseal_observe_execution93 tok

  Persist an observation request for an already-submitted EVM or Solana transaction, then issue evidence when configured observation completes. This can consume configured Agent credits; send an idempotency key. It never broadcasts a transaction.

• priorseal_prepare_authorization90 tok

  Canonicalize a bounded authorization and return the exact EIP-712 typed data or Solana message for a human-controlled principal to sign. This is read-only and never signs, submits, or executes a transaction.

• priorseal_prepare_controlled_execution90 tok

  Prepare a bounded authorization together with the deployment capabilities and a safe, explicit handoff plan. A human-controlled principal must still sign; this never accepts an authorization, signs, submits, or executes a transaction.

• priorseal_accept_authorization86 tok

  Verify and persist a principal-signed authorization. This can consume configured Agent credits and changes service state; send an idempotency key. It never signs, submits, or executes a transaction.

• priorseal_verify_receipt68 tok

  Convenience-verify a PriorSeal receipt with the deployment key registry. Independent local verification remains required for trust decisions.

• priorseal_get_observation_job67 tok

  Read the durable status of an automatic finality-observation job.

• priorseal_get_evidence_bundle66 tok

  Export the portable receipt evidence bundle and issuer key-discovery metadata.

• priorseal_get_receipt61 tok

  Read a signed execution receipt by its identifier.

• priorseal_get_authorization60 tok

  Read an accepted authorization by its identifier.

• priorseal_get_capabilities35 tok

  Read the live PriorSeal deployment capabilities before constructing a workflow.

Freshness

Not enough public signals yet to judge maintenance.

1. Last commit (default branch)

   2026-10-18 · today · GitHub

2. Latest release

   2026-10-16 · 2d ago · GitHub · sdk-v0.11.1

3. Package published

   no data · npm/PyPI

4. Registry entry updated

   2026-10-18 · today · official registry · v0.1.1