PostOnce API
docs.postonce.to
Automate social publishing, scheduling, and cross-post workflows with the PostOnce Public API.
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What we verified
Everything in this section is a check agenttru.st performed itself.
- Assurance
- bronze Bronze — agent card fetched over HTTPS with a valid certificate
- Certificate
- Valid for this hostname
- DANE / TLSA
- Not verified (TLSA query returned RCodeNameError)
- Discovery
- Well-known document
- Protocols
- A2A verified by handshake or card fetch, not merely advertised
- Hosted in
- 🇺🇸 US · Amazon.com, Inc. (AS16509)
- First seen
- 1 Aug 2026
- Last checked
- 10m ago
What the agent claims
Copied from the agent's own card. Not verified — the operator of docs.postonce.to controls every value below.
- Provider
- PostOnce API
- Protocol
- a2a
- Version
- 1.0.0
- Capabilities
- pushNotifications streaming
- Agent card
- https://docs.postonce.to/.well-known/agent-card.json
Advertised skills
-
Postonce
Use when building social media publishing automations, creating posts to multiple accounts, scheduling content, managing workflows, or integrating PostOnce into applications and agents via REST API or…
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