# PriorSeal (remote · priorseal.xyz)

Bounded authorization and independently verifiable execution evidence for agents.

- Trust score: 67/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-22

## Components

- remote · `priorseal.xyz`: 67/100 (this document), [markdown](https://verifymcp.io/servers/imokokok-priorseal/priorseal.md), [page](https://verifymcp.io/servers/imokokok-priorseal/priorseal)

## Channel facts

- Endpoint: `https://priorseal.xyz/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.1`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-22.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 520 tokens (~52/item across 10 items; 10 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 13/100
  - Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 11 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the PriorSeal MCP server?

PriorSeal is a hosted endpoint at https://priorseal.xyz/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http imokokok-priorseal 'https://priorseal.xyz/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "imokokok-priorseal": {
      "url": "https://priorseal.xyz/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "imokokok-priorseal": {
      "type": "http",
      "url": "https://priorseal.xyz/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.imokokok-priorseal]
url = "https://priorseal.xyz/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "imokokok-priorseal": {
      "type": "remote",
      "url": "https://priorseal.xyz/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add imokokok-priorseal --url 'https://priorseal.xyz/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  imokokok-priorseal:
    url: "https://priorseal.xyz/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "imokokok-priorseal": {
      "Transport": "http",
      "Url": "https://priorseal.xyz/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add imokokok-priorseal -t streamable-http -u 'https://priorseal.xyz/mcp'
```

### Other

```json
{
  "mcpServers": {
    "imokokok-priorseal": {
      "type": "http",
      "url": "https://priorseal.xyz/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-22 (score 67, 0)

- [functional] Server version: 6338fad255a7c56f2c582499beb3efb26591bae7 → 7a8e65968db1d4c79bca5455c8323fafa357a56f

### 2026-10-21 (score 67, 0)

- [functional] Server version: d92ae45806d91243d29a38d9d8ffc39876d1a27e → 6338fad255a7c56f2c582499beb3efb26591bae7

### 2026-10-20 (score 67, +1)

- [functional] Server version: 56a187a0-bd1d-4d1e-828d-41ca2af07c29 → d92ae45806d91243d29a38d9d8ffc39876d1a27e

### 2026-10-19 (score 66, 0)

- [functional improvement] Stability: unverified → 0.03
- [functional] Server version: a35e70ca7dc10c817d180bc0ce5d89fd4877699b → 56a187a0-bd1d-4d1e-828d-41ca2af07c29

### 2026-10-18 (score 66)

First indexed and scored.

## MCP tools (10)

### `priorseal_get_capabilities` (~23 tokens)

Read the live PriorSeal deployment capabilities before constructing a workflow.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

### `priorseal_prepare_authorization` (~68 tokens)

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.

Input parameters:

- `input` (object, required): The complete PriorSeal authorization preparation request.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

### `priorseal_prepare_controlled_execution` (~67 tokens)

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.

Input parameters:

- `input` (object, required): The complete controlled-execution preparation request.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

### `priorseal_accept_authorization` (~63 tokens)

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.

Input parameters:

- `input` (object, required): The complete signed PriorSeal authorization request.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

### `priorseal_get_authorization` (~31 tokens)

Read an accepted authorization by its identifier.

Input parameters:

- `authorizationId` (string, required): PriorSeal authorization identifier.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

### `priorseal_observe_execution` (~70 tokens)

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.

Input parameters:

- `input` (object, required): The complete PriorSeal execution-observation request.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

### `priorseal_get_observation_job` (~38 tokens)

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

Input parameters:

- `jobId` (string, required): PriorSeal observation job identifier.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

### `priorseal_get_receipt` (~32 tokens)

Read a signed execution receipt by its identifier.

Input parameters:

- `receiptId` (string, required): PriorSeal receipt identifier.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

### `priorseal_get_evidence_bundle` (~37 tokens)

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

Input parameters:

- `receiptId` (string, required): PriorSeal receipt identifier.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

### `priorseal_verify_receipt` (~44 tokens)

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

Input parameters:

- `receipt` (object, required): Receipt object to verify.

Output parameters:

- `data`
- `mayBroadcastTransaction`
- `nextAction` (string)
- `requiresHumanSignature` (boolean)
- `risk` (object)
- `schema`
- `status` (string)
- `tool`

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/imokokok-priorseal/priorseal#diagnostics

## Score history

- 2026-10-22: 67
- 2026-10-21: 67
- 2026-10-20: 67
- 2026-10-19: 66
- 2026-10-18: 66

## Common questions

### What is the PriorSeal MCP server?

PriorSeal is an MCP server listed in the public MCP registry as io.github.imokokok/priorseal. Bounded authorization and independently verifiable execution evidence for agents. This page covers its hosted endpoint (https://priorseal.xyz/mcp).

### Is the PriorSeal MCP server safe to use?

PriorSeal scores 67 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the PriorSeal MCP server expose?

PriorSeal exposes 10 tools: priorseal_get_capabilities, priorseal_prepare_authorization, priorseal_prepare_controlled_execution, priorseal_accept_authorization, priorseal_get_authorization, and 5 more. Their descriptions and schemas cost roughly 473 tokens of context every time the server is loaded.

### Does the PriorSeal MCP server require authentication?

No. We connected to PriorSeal without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the PriorSeal MCP server still maintained?

PriorSeal is still listed as active in the MCP registry. We last reached this channel on 22 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://priorseal.xyz/mcp
- Repository: https://github.com/imokokok/PriorSeal
- Website: https://priorseal.xyz/
- Changelog RSS feed: https://verifymcp.io/servers/imokokok-priorseal/priorseal.xml
- Changelog JSON feed: https://verifymcp.io/servers/imokokok-priorseal/priorseal.json
- HTML version of this page: https://verifymcp.io/servers/imokokok-priorseal/priorseal