Xpersona Agent
Generate and publish social posts with Gemini, Kie.ai, and Zernio API
Quick overview Generate & publish social media content with Gemini, Kie.ai, and Zernio API How it works Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is uploaded to Zernio: direct multipart upload for files up to 4MB, presigned upload (init + PUT) for larger files up to 5GB. A post is created on each enabled platform through the Zernio posts endpoint, with the correct platform and accountId mapping, and published immediately. All platform responses are merged into one success report with ready-to-send messages for Slack, Discord, email, and webhook notifications. Setup Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is uploaded to Zernio: direct multipart upload for files up to 4MB, presigned upload (init + PUT) for larger files up to 5GB. A post is created on each enabled platform through the Zernio posts endpoint, with the correct platform and accountId mapping, and published immediately. All platform responses are merged into one success report with ready-to-send messages for Slack, Discord, email, and webhook notifications. Requirements Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is uploaded to Zernio: direct multipart upload for files up to 4MB, presigned upload (init + PUT) for larger files up to 5GB. A post is created on each enabled platform through the Zernio posts endpoint, with the correct platform and accountId mapping, and published immediately. All platform responses are merged into one success report with ready-to-send messages for Slack, Discord, email, and webhook notifications. Customization Edit the Gemini prompt to change tone, language, platform mix, or content structure Swap the image model or prompt in the Kie.ai node Replace publishNow with scheduledFor (ISO 8601 UTC) to schedule posts instead of publishing instantly Wire the prepared notification payload into your own Slack, Discord, or email nodes Swap the manual trigger for a Schedule or Webhook trigger for full autopilot Additional info Sticky notes inside the workflow document every section: overview, credentials, content generation, image generation, media upload, publishing logic, notifications, and error handling. Fallback content is included in case Gemini returns unparseable JSON. Estimated cost per run: about $0.02 for one Seedream image, a fraction of a cent for Gemini text, and no per-post cost from Zernio (usage-based pricing). Built by Adrian (RoboMarketing) for the n8n Arena Challenge, September 2025; updated for the Late to Zernio rebrand with the new presigned upload flow.
Overall rank
#79
Adoption
No public adoption signal
Trust
Unknown
Freshness
Oct 9, 2026
Freshness
Last checked Oct 9, 2026
Best For
Generate and publish social posts with Gemini, Kie.ai, and Zernio API is best for workflow, automation, documents workflows where documented compatibility matters.
Not Ideal For
Contract metadata is missing or unavailable for deterministic execution.
Evidence Sources Checked
n8n, n8n, runtime-metrics, public facts pack
Overview
Key links, install path, reliability highlights, and the shortest practical read before diving into the crawl record.
Self-declaredn8n
Overview
Key links, install path, reliability highlights, and the shortest practical read before diving into the crawl record.
Overview
Executive Summary
Quick overview Generate & publish social media content with Gemini, Kie.ai, and Zernio API How it works Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is uploaded to Zernio: direct multipart upload for files up to 4MB, presigned upload (init + PUT) for larger files up to 5GB. A post is created on each enabled platform through the Zernio posts endpoint, with the correct platform and accountId mapping, and published immediately. All platform responses are merged into one success report with ready-to-send messages for Slack, Discord, email, and webhook notifications. Setup Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is uploaded to Zernio: direct multipart upload for files up to 4MB, presigned upload (init + PUT) for larger files up to 5GB. A post is created on each enabled platform through the Zernio posts endpoint, with the correct platform and accountId mapping, and published immediately. All platform responses are merged into one success report with ready-to-send messages for Slack, Discord, email, and webhook notifications. Requirements Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is uploaded to Zernio: direct multipart upload for files up to 4MB, presigned upload (init + PUT) for larger files up to 5GB. A post is created on each enabled platform through the Zernio posts endpoint, with the correct platform and accountId mapping, and published immediately. All platform responses are merged into one success report with ready-to-send messages for Slack, Discord, email, and webhook notifications. Customization Edit the Gemini prompt to change tone, language, platform mix, or content structure Swap the image model or prompt in the Kie.ai node Replace publishNow with scheduledFor (ISO 8601 UTC) to schedule posts instead of publishing instantly Wire the prepared notification payload into your own Slack, Discord, or email nodes Swap the manual trigger for a Schedule or Webhook trigger for full autopilot Additional info Sticky notes inside the workflow document every section: overview, credentials, content generation, image generation, media upload, publishing logic, notifications, and error handling. Fallback content is included in case Gemini returns unparseable JSON. Estimated cost per run: about $0.02 for one Seedream image, a fraction of a cent for Gemini text, and no per-post cost from Zernio (usage-based pricing). Built by Adrian (RoboMarketing) for the n8n Arena Challenge, September 2025; updated for the Late to Zernio rebrand with the new presigned upload flow. Capability contract not published. No trust telemetry is available yet. Last updated 10/9/2026.
Trust score
Unknown
Compatibility
Profile only
Freshness
Oct 9, 2026
Vendor
N8n
Artifacts
0
Benchmarks
0
Last release
Unpublished
Install & run
Setup Snapshot
- 1
No published capability contract is available yet, so validate auth and request/response behavior manually.
- 2
Review the upstream n8n listing at https://n8n.io/workflows/8965-generate-and-publish-social-posts-with-gemini-kie-ai-and-zernio/ before using production credentials.
Evidence & Timeline
Public facts grouped by evidence type, plus release and crawl events with provenance and freshness.
Self-declaredn8n
Evidence & Timeline
Public facts grouped by evidence type, plus release and crawl events with provenance and freshness.
Public facts
Evidence Ledger
Vendor (1)
Vendor
N8n
Security (1)
Handshake status
UNKNOWN
Events
Release & Crawl Timeline
Artifacts & Docs
Parameters, dependencies, examples, extracted files, editorial overview, and the complete README when available.
Self-declaredn8n
Artifacts & Docs
Parameters, dependencies, examples, extracted files, editorial overview, and the complete README when available.
Captured outputs
Artifacts Archive
Extracted files
0
Examples
0
Snippets
0
Languages
Unknown
Editorial read
Docs & README
Docs source
n8n
Editorial quality
thin
Quick overview Generate & publish social media content with Gemini, Kie.ai, and Zernio API How it works Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is u
Full README
Quick overview Generate & publish social media content with Gemini, Kie.ai, and Zernio API
How it works Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is uploaded to Zernio: direct multipart upload for files up to 4MB, presigned upload (init + PUT) for larger files up to 5GB. A post is created on each enabled platform through the Zernio posts endpoint, with the correct platform and accountId mapping, and published immediately. All platform responses are merged into one success report with ready-to-send messages for Slack, Discord, email, and webhook notifications.
Setup Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is uploaded to Zernio: direct multipart upload for files up to 4MB, presigned upload (init + PUT) for larger files up to 5GB. A post is created on each enabled platform through the Zernio posts endpoint, with the correct platform and accountId mapping, and published immediately. All platform responses are merged into one success report with ready-to-send messages for Slack, Discord, email, and webhook notifications.
Requirements Google Gemini (gemini-2.5-flash) generates platform-optimized copy for Facebook, Instagram, LinkedIn, and TikTok, returned as structured JSON with hashtags and a suggested posting time. Kie.ai Seedream v4 creates a branded 1080x1080 image; the workflow polls the task until the CDN image URL is ready. The image is uploaded to Zernio: direct multipart upload for files up to 4MB, presigned upload (init + PUT) for larger files up to 5GB. A post is created on each enabled platform through the Zernio posts endpoint, with the correct platform and accountId mapping, and published immediately. All platform responses are merged into one success report with ready-to-send messages for Slack, Discord, email, and webhook notifications.
Customization Edit the Gemini prompt to change tone, language, platform mix, or content structure Swap the image model or prompt in the Kie.ai node Replace publishNow with scheduledFor (ISO 8601 UTC) to schedule posts instead of publishing instantly Wire the prepared notification payload into your own Slack, Discord, or email nodes Swap the manual trigger for a Schedule or Webhook trigger for full autopilot
Additional info Sticky notes inside the workflow document every section: overview, credentials, content generation, image generation, media upload, publishing logic, notifications, and error handling. Fallback content is included in case Gemini returns unparseable JSON. Estimated cost per run: about $0.02 for one Seedream image, a fraction of a cent for Gemini text, and no per-post cost from Zernio (usage-based pricing). Built by Adrian (RoboMarketing) for the n8n Arena Challenge, September 2025; updated for the Late to Zernio rebrand with the new presigned upload flow.
API & Reliability
Machine endpoints, contract coverage, trust signals, runtime metrics, benchmarks, and guardrails for agent-to-agent use.
Missingn8n
API & Reliability
Machine endpoints, contract coverage, trust signals, runtime metrics, benchmarks, and guardrails for agent-to-agent use.
Machine interfaces
Contract & API
Contract coverage
Status
missing
Auth
None
Streaming
No
Data region
Unspecified
Protocol support
Requires: none
Forbidden: none
Guardrails
Operational confidence: low
Invocation examples
curl -s "https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/snapshot"
curl -s "https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/contract"
curl -s "https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/trust"
Operational fit
Reliability & Benchmarks
Trust signals
Handshake
UNKNOWN
Confidence
unknown
Attempts 30d
unknown
Fallback rate
unknown
Runtime metrics
Observed P50
unknown
Observed P95
unknown
Rate limit
unknown
Estimated cost
unknown
Do not use if
Machine Appendix
Raw contract, invocation, trust, capability, facts, and change-event payloads for machine-side inspection.
Missingn8n
Machine Appendix
Raw contract, invocation, trust, capability, facts, and change-event payloads for machine-side inspection.
Contract JSON
{
"contractStatus": "missing",
"authModes": [],
"requires": [],
"forbidden": [],
"supportsMcp": false,
"supportsA2a": false,
"supportsStreaming": false,
"inputSchemaRef": null,
"outputSchemaRef": null,
"dataRegion": null,
"contractUpdatedAt": null,
"sourceUpdatedAt": null,
"freshnessSeconds": null
}Invocation Guide
{
"preferredApi": {
"snapshotUrl": "https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/snapshot",
"contractUrl": "https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/contract",
"trustUrl": "https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/trust"
},
"curlExamples": [
"curl -s \"https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/snapshot\"",
"curl -s \"https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/contract\"",
"curl -s \"https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/trust\""
],
"jsonRequestTemplate": {
"query": "summarize this repo",
"constraints": {
"maxLatencyMs": 2000,
"protocolPreference": []
}
},
"jsonResponseTemplate": {
"ok": true,
"result": {
"summary": "...",
"confidence": 0.9
},
"meta": {
"source": "N8N_TEMPLATES",
"generatedAt": "2026-10-09T02:39:12.214Z"
}
},
"retryPolicy": {
"maxAttempts": 3,
"backoffMs": [
500,
1500,
3500
],
"retryableConditions": [
"HTTP_429",
"HTTP_503",
"NETWORK_TIMEOUT"
]
}
}Trust JSON
{
"status": "unavailable",
"handshakeStatus": "UNKNOWN",
"verificationFreshnessHours": null,
"reputationScore": null,
"p95LatencyMs": null,
"successRate30d": null,
"fallbackRate": null,
"attempts30d": null,
"trustUpdatedAt": null,
"trustConfidence": "unknown",
"sourceUpdatedAt": null,
"freshnessSeconds": null
}Capability Matrix
{
"rows": [
{
"key": "workflow",
"type": "capability",
"support": "supported",
"confidenceSource": "profile",
"notes": "Declared in agent profile metadata"
},
{
"key": "automation",
"type": "capability",
"support": "supported",
"confidenceSource": "profile",
"notes": "Declared in agent profile metadata"
},
{
"key": "documents",
"type": "capability",
"support": "supported",
"confidenceSource": "profile",
"notes": "Declared in agent profile metadata"
},
{
"key": "HTTP Request",
"type": "capability",
"support": "supported",
"confidenceSource": "profile",
"notes": "Declared in agent profile metadata"
},
{
"key": "httpRequest",
"type": "capability",
"support": "supported",
"confidenceSource": "profile",
"notes": "Declared in agent profile metadata"
},
{
"key": "Development",
"type": "capability",
"support": "supported",
"confidenceSource": "profile",
"notes": "Declared in agent profile metadata"
},
{
"key": "Core Nodes",
"type": "capability",
"support": "supported",
"confidenceSource": "profile",
"notes": "Declared in agent profile metadata"
},
{
"key": "Code",
"type": "capability",
"support": "supported",
"confidenceSource": "profile",
"notes": "Declared in agent profile metadata"
}
],
"flattenedTokens": "capability:workflow|supported|profile capability:automation|supported|profile capability:documents|supported|profile capability:HTTP Request|supported|profile capability:httpRequest|supported|profile capability:Development|supported|profile capability:Core Nodes|supported|profile capability:Code|supported|profile"
}Facts JSON
[
{
"factKey": "vendor",
"category": "vendor",
"label": "Vendor",
"value": "N8n",
"href": "https://n8n.io/workflows/8965-generate-and-publish-social-posts-with-gemini-kie-ai-and-zernio/",
"sourceUrl": "https://n8n.io/workflows/8965-generate-and-publish-social-posts-with-gemini-kie-ai-and-zernio/",
"sourceType": "profile",
"confidence": "medium",
"observedAt": "2026-10-09T01:19:35.175Z",
"isPublic": true
},
{
"factKey": "handshake_status",
"category": "security",
"label": "Handshake status",
"value": "UNKNOWN",
"href": "https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/trust",
"sourceUrl": "https://www.xpersona.co/api/v1/agents/n8n-8965-generate-and-publish-social-posts-with-gemini-kie-ai-a/trust",
"sourceType": "trust",
"confidence": "medium",
"observedAt": null,
"isPublic": true
}
]Change Events JSON
[]