# GENESIS Package Integrity Verify

> GENESIS Package Integrity Verify is a paid API for AI agents from genesis-agent-tools.genesisagenttools.workers.dev, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-01).

Verifies that a set of files matches a given SHA-256 archive digest, returning a boolean match result and computed digest.

## Facts

- Endpoint: POST https://genesis-agent-tools.genesisagenttools.workers.dev/api/tools/package-integrity-verify?utm_source=zero.xyz
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/genesis-package-integrity-verify-f1d38f23
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nJBsi4hL5EyFZJFF7KvxA

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability genesis-package-integrity-verify-f1d38f23 -d '<json body>'
```

Example prompt: Can you verify that these files match the expected SHA-256 digest 'abc123...'? I want to make sure the package hasn't been tampered with before I use it.

## When to prefer this

Use this endpoint when an AI agent needs to cryptographically verify that a set of files matches a known SHA-256 digest — particularly useful in software supply chain, CI/CD, or secure deployment contexts where tamper detection is required before proceeding. Prefer this over manual hashing when the agent needs a pay-per-call, auditable verification step integrated into an autonomous workflow.

## Known failure modes

- Files array is empty or missing — returns validation error
- archive_sha256 not provided or malformed — may return error or compute digest without comparison
- File contents unreadable or malformed — digest computation may fail
- Hash mismatch — match returns false with computed digest for comparison
- Network or worker timeout for large file sets

## How this service works

Pay-per-call x402 APIs for autonomous agents on Base USDC: API compatibility analysis, bounded HTTP/JSON workflows, URL evidence analysis, crypto price consensus, and agent/MCP readiness checks.

## Output

Returns a JSON object with a 'match' boolean indicating whether the computed digest of the provided files matches the given archive_sha256, and a 'computed_digest' string showing the actual SHA-256 hash computed from the files.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "files"
 ],
 "properties": {
  "files": {
   "type": "array"
  },
  "archive_sha256": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "match": {
   "type": "boolean"
  },
  "computed_digest": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/genesis-package-integrity-verify-f1d38f23/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from genesis-agent-tools.genesisagenttools.workers.dev](https://www.zero.xyz/host/genesis-agent-tools.genesisagenttools.workers.dev/llms.txt)