Tally.so

55
Good (public checks)
Agent Native Score
MCP ServerFree TierAPI Key Authllms.txt

Form builder with a generous free tier. Notion-like editor, webhooks, integrations, and an API for creating and managing forms.

Categories: Forms
#1 of 15 in Forms
Checklist Breakdown

18 of 33 checks passed. 14 unscored.

Discovery 88%

Can an agent find and understand this tool without a web search?

✗ Published OpenAPI/Swagger spec
✓ Has llms.txt or llms-full.txt
✓ Has an MCP server (official or well-maintained)
✓ MCP server listed in a public registry
✓ API reference docs are publicly accessible
✓ Docs include runnable code examples
✓ Has a public changelog or release notes
✓ Has a public status page
Auth & Onboarding 100%

Can an agent create an account and get credentials without human intervention?

✓ Signup does not require CAPTCHA
✓ Signup does not require phone verification
✓ Supports API key auth (not only OAuth)
✓ API key obtainable without manual approval
✓ No mandatory billing info to start
✓ Can sign up without creating an organization
Pricing 100%

Can an agent operate autonomously without upfront payment or contracts?

✓ Has a free tier
✓ Usage-based pricing available
✓ No minimum contract or commitment
✓ Pricing page is public (no 'contact sales')
✓ Free tier sufficient for testing (not just a trial)
Agent Tooling Not yet scored

How well does the API work for non-human consumers?

— SDK available in 2+ languages
— Structured error responses (JSON with error codes)
— Idempotency support on write endpoints
— Pagination on list endpoints
— Webhook/event support
— Sandbox or test mode available
— Rate limit headers in responses
— Consistent REST resource naming
Reliability Not yet scored

Does the tool fail gracefully when an agent makes a mistake?

— Meaningful error messages (not just 500)
— 429 responses include Retry-After header
— Documented uptime SLA (99.9%+)
— Graceful degradation under rate limits
— Request IDs in responses for debugging
— API versioning supported
Reviewer Notes

Verified by Tally.so team. Has both llms.txt and a full MCP server (https://developers.tally.so/api-reference/mcp). REST API allows creating forms programmatically. Webhooks fire reliably. Excellent free tier (unlimited forms). Top-rated form tool for agents.

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