# Raptr

> AI agents anyone can use. Three free, read-only MCP servers: build a single-file AI agent from an idea and run it on the user's data, find one of about 1,700 ready-made agents, or get verified world numbers with a public SHA-256 fingerprint. No account, no API key, nothing stored.

## MCP servers (streamable HTTP, no auth)

- [Agent Builder](https://api.airaptr.com/mcp): get_agent_template, check_agent, use_agent_here, find_agents, get_agent_code, share_agent, how_to_run_agent, rejection_rescue_preview
- [Agent Finder](https://api.airaptr.com/finder/mcp): find_agents, get_agent_code, use_agent_here, how_to_run_agent
- [World Check](https://api.airaptr.com/world/mcp): world_now, fingerprint_text
- [Domain Check](https://api.airaptr.com/domains/mcp): check_domain, register_domain
- [App Store Review](https://api.airaptr.com/appstore/mcp): will_it_pass_preview, rejection_rescue_preview

## Pay per call (x402 v2, USDC)

- GET https://api.airaptr.com/x402/world: fresh verified world snapshot, $0.001
- POST https://api.airaptr.com/x402/domains/register?domain=NAME: register an available domain; the 402 response quotes the price; charged only if registration succeeds (raise your x402 client's default $1 per-payment cap first)

## Store

- [Catalog](https://api.airaptr.com/store.json): every product with its free part, paid part, price, network, exact calls, a sample input and output, and terms. Charged only when the paid output is delivered.
- Rejection Rescue, free preview: POST https://api.airaptr.com/rescue/preview with {"text": "<Apple's rejection message>"}, or the MCP tool rejection_rescue_preview on https://api.airaptr.com/mcp. Returns the guideline sections it recognizes and what Apple means by each.
- Rejection Rescue, full (paid): POST https://api.airaptr.com/x402/rescue with {"text": "...", "changes": "optional", "recording_url": "optional"}: likely causes, a fix list and a reply draft to App Review. Price and network are in the 402 response and in store.json. Input up to 20 KB; empty, invalid or unrecognized input is refused before payment.
- "Will it pass?" listing check, free: POST https://api.airaptr.com/listing/preview with {"listing": {"name", "subtitle", "keywords", "description", "copyright", "privacy_policy_url", "support_url"}, "screenshots": [...], "review_notes": "..."} (a store/listing.json works as-is), or the MCP tool will_it_pass_preview on https://api.airaptr.com/appstore/mcp. PASS, FAIL, WARN or NOT_CHECKED per check, before you submit.
- "Will it pass?", full (paid): POST https://api.airaptr.com/x402/listing with the same body: what was found and the fix for each failure, plus trimmed fields and cleaned keywords. Refused before payment when there is nothing to fix.
- Every Rejection Rescue and "Will it pass?" response carries sha256, a receipt of its own body (canonical JSON).
- Coming soon: rapple-sim (free iOS Simulator MCP server).

## A2A

- [Agent card](https://api.airaptr.com/.well-known/agent-card.json): JSON-RPC message/send at https://api.airaptr.com/a2a. Skills: find_agents, world_now, agent_template, rejection_rescue_preview.

## Docs

- [Website](https://airaptr.github.io/): what it does, in plain words
- [Source](https://github.com/airaptr/airaptr.github.io): server code, listing packages, tests
- [Agent registry](https://kody-w.github.io/RAR/): the open agent registry
- [Privacy](https://airaptr.github.io/privacy.html) and [Terms](https://airaptr.github.io/terms.html)