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Bounty Engineer Release Sentinel Evidence
x402
Bounty Engineer Release Sentinel Evidence is a paid API for AI agents from bounty-engineer-x402-prod.onrender.com, paid per call via x402, $0.049/call, status unknown (last checked 2026-10-12).
Validates an npm package release by checking its name, version, and optional integrity hash against policy controls for vulnerability blocking, provenance, and registry signature requirements.
Price / call$0.049
Success—
StatusUnknown
How this service works
Machine-buyable infrastructure for autonomous agents: API cost routing, margin optimization, funding-rate data, webpage extraction, result verification, spend controls, retry planning, state, tender search and GitHub bounty intelligence.
Output
Returns a JSON object indicating whether the package passed validation, the evaluation mode, the package name and version checked, the policy decision outcome, and any warnings. In example mode the response is illustrative only; paid fulfillment runs independent npm and OSV source checks for live verification.
Example use cases
Pre-install vulnerability gate in CI
“We're about to install express version 4.18.2 in our pipeline — can you check it against the release sentinel with block_on_vulnerability and require_provenance_signal both enabled before we proceed?”
Lockfile integrity pinning check
“Verify that react version 18.2.0 matches the expected SRI integrity hash sha512-abc123XYZ== from our lockfile, and flag it if the registry signature is missing.”
Agent dependency safety audit
“My autonomous agent is about to pull in axios version 1.4.0 as a dependency — run it through the release sentinel with all policy checks enabled so I know it's safe to use.”
Technical details
Endpoint
POSThttps://bounty-engineer-x402-prod.onrender.com/v1/release-sentinel-evidence?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an autonomous agent or CI pipeline needs a paid, policy-enforced safety gate before installing an npm package — especially when you need to combine vulnerability blocking, provenance attestation, registry signature verification, and optional SRI integrity pinning in a single call. Prefer it over manual npm audit or OSV queries when you need a structured decision signal with configurable policy controls that an agent can act on autonomously.
Side effects
- Package name or version fails schema validation (minLength/maxLength constraints)
- OSV or npm registry unreachable during live verification
- Integrity hash mismatch triggers policy block
- Missing provenance signal causes rejection when require_provenance_signal is true
- Unknown or unlisted package version returns indeterminate decision
- Response may be example/illustrative-only rather than live-verified depending on fulfillment mode
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| name | string | |
| policy | object | |
| version | string | |
| expected_integrity | string | Optional pinned npm sha512 SRI from lockfile |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"mode": "release_sentinel_example",
"name": "lodash",
"version": "4.17.21",
"warning": "Worked schema example, not live npm or OSV verification. Paid fulfillment runs independent source checks.",
"decision": "illustrative_only",
"not_live": true,
"example_only": true
}
}Tags
x402
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