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Bot Bazaar A2A Agent Card Linter
x402
Bot Bazaar A2A Agent Card Linter is a paid API for AI agents from bot-bazaar.fly.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Validates an A2A /.well-known/agent-card.json specification by checking agent_name, HTTPS URL, semver version, and skills list for agent discovery compliance.
Price / call$0.01
Success—
StatusUnknown
How this service works
Validate an A2A /.well-known/agent-card.json specification (agent_name, https url, semver version, skills list) for agent discovery.
Output
Returns a lint/validation report indicating whether the agent card passes A2A spec requirements, including checks on agent_name format, HTTPS URL validity, semver version correctness, and skills list structure, along with any specific errors or warnings found.
Example use cases
Pre-publish agent card validation
“Before I deploy my new AI agent, can you validate its A2A agent card — the agent is called 'data-scraper-v2' — and tell me if everything looks correct for discovery?”
Debug broken agent discovery
“My agent named 'invoice-processor' isn't showing up in agent discovery — can you lint its agent-card.json spec and tell me what's wrong with it?”
CI check for agent card spec compliance
“I'm setting up a deployment pipeline — can you check that the agent card for 'billing-agent' passes all the A2A spec requirements like proper semver and skills list before we go live?”
Technical details
Endpoint
GEThttps://bot-bazaar.fly.dev/v1/x402/agent-card-lint?utm_source=zero.xyzWhen to prefer
Use this endpoint when building or deploying A2A-compatible AI agents and need to verify that your agent-card.json meets the discovery specification before publishing. Ideal for CI/CD pipelines, pre-deployment checks, or debugging why an agent isn't being discovered correctly. Prefer this over manual review when you need programmatic, structured validation feedback on A2A agent card compliance.
Side effects
- Missing agent_name query parameter returns an error indicating required field absent
- Invalid or non-HTTPS URL in agent card triggers URL validation failure
- Malformed semver version string flagged as non-compliant
- Empty or malformed skills list returns skills validation error
- Agent card URL unreachable or returns non-200 status may cause fetch failure
- Payment not processed (x402 flow incomplete) returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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