Pay-per-call APIs for AI agents

Every shelf below is one HTTP GET away: no API key, no signup, no subscription. Your agent pays per call in USDC on Base via the x402 protocol (HTTP 402 → signed payment header → data), settled by Coinbase. Repeat callers can buy a Shelf Pass — 110 credits for $0.99, spent without a per-call payment round-trip. No crypto wallet? The same credits are buyable by card (or Link) in larger packs — $4.99 for 554 credits, or $9.99 for 1,110 — same table, same pricing per credit, same header to spend them.

Data shelves — instant delivery

Official FX rate — one African pair	$0.01
Official FX rates — all eight pairs	$0.02
Street (parallel-market) rate — USD-NGN or USD-GHS	$0.05
Parallel-rate history — last 24 hours, hourly	$0.25
Parallel-rate history — last 7 days, hourly	$0.99
Africa FX daily brief	$0.50
US carrier authority & safety check (FMCSA)	$0.10
US carrier safety BASICs (FMCSA SMS)	$0.10
US freight broker authority check (FMCSA)	$0.10
Load vet pack — authority + BASICs + broker + OFAC name	$0.25
Sanctions name screen — OFAC SDN + Consolidated (US)	$0.02
Sanctions wallet screen — OFAC Digital Currency Address	$0.01
Shelf Pass — 110 prepaid credits	$0.99
Texas insurance license CE & renewal check (TDI)	$0.25
Texas real-estate license CE & renewal check (TREC)	$0.25
English ↔ Swahili localization — instant machine pass, up to 120 words	$0.25

Service shelves — real work, ticket + one feedback round

English ↔ Swahili localization, up to 500 words	$0.99 / $25
Print/social flyer design	$0.99 / $49
Social content pack — 10 posts	$0.99 / $99
30-minute consult with the founder	$0.99 / $75
Landing page build	$0.99 / $499
Cloud Spend Intelligence report	$0.99 / $49

Integration surfaces

/catalog	machine-readable shelf list (free JSON)
`POST /mcp` · /mcp.json	MCP server — official registry id `biz.nibiashara/shelves`; tools: `list_shelves`, `buy_shelf`, `get_order`, `get_pass_balance`, `check_carrier_authority`, `check_carrier_basics`, `check_broker_authority`, `vet_load`, `screen_sanctions_name`, `screen_sanctions_wallet`, `get_fx_official`, `get_fx_parallel`, `get_fx_africa_brief`, `localize_text`, `check_tx_insurance_ce`, `check_tx_realestate_ce`, `buy_shelf_pass`
/.well-known/x402	IETF x402 DNS-discovery manifest (priced data resources)
/openapi.json	OpenAPI 3 with x-payment-info per route
agent-card.json	Google A2A card (a2a-x402 payments extension); JSON-RPC at `POST /a2a`
/llms.txt	plain-text map for LLM crawlers
/muse/openapi.json	Meta Muse custom connector — paste this URL into Muse's "Add connector" box and every shelf above is listed for a Muse conversation. `POST /muse/connect` gets a free bearer token (no card, no email); the three FX spot shelves are free up to 200 calls/day, and every other data shelf works the moment you link a Shelf Pass — prepaid credits by card/Link (/card-pass, $4.99/$9.99) or USDC (`/shelf/shelf-pass-100`, $0.99), then `POST /muse/link-pass` once — credits spend at the same list price as everywhere else on this page. Service shelves (flyer design, content packs, landing pages, consults, localization, cloud-spend reports) stay on the usual Coinbase checkout, same as the x402 rail — not credits.
/card-pass	Buy Shelf Pass credits by card (or Link) instead of USDC — $4.99 for 554 credits or $9.99 for 1110 credits. Same call_pass table, same per-credit price as the $0.99 USDC starter (`/shelf/shelf-pass-100`) — just a different rail in.

Built for a few jobs, not just a catalog

Three of these shelves get reached for by name:

Realtors — check your own Texas real-estate CE hours ($0.25), then run a party screen ($0.02) on a new buyer or seller before you get near closing.
Insurance agents — the same rules-engine check for Texas TDI CE and renewal rules, by license line and years licensed. $0.25.
Owner-operator truckers — run load-vet-pack before you take a load: FMCSA authority, safety record, and broker status in one TENDER/HOLD/REJECT call. $0.25. Same federal data sits behind our Faida app ($9.99/mo) if you'd rather have it running in the cab than in an agent.