15 tools live

Small jobs should take one call.

One MCP endpoint for Bitcoin, data, text, and developer utilities. Pay in sats, only for execution.

L402 manifest Agent manifest

15Tools

5–25Sats / call

L402Lightning

0Subscriptions

Tool catalog

See the job. Call the tool.

Discovery is free. Every result is structured JSON.

BTC

btc_price10 sats

SEND

btc_send_decision15 sats

lightning_address_resolve10 sats

tx_decode_explain25 sats

FEE

optimal_send_window25 sats

{ }

json_validate5 sats

PATH

json_extract5 sats

CSV

csv_to_json10 sats

TXT

text_analyze5 sats

hash_generate5 sats

base64_convert5 sats

UTC

timestamp_convert5 sats

uuid_generate5 sats

URL

url_parse5 sats

JWT

jwt_decode5 sats

Paid in Bitcoin

Sats in. Result out.

The payment credential travels with the request.

Prepaid sats balance

Already hold a key?

Existing Loop Gateway prepaid keys still work. Send the key on each call and the sats price is debited from its balance.

Authorization: Bearer loop_<credit_key>Tool prices

Lightning L402

Challenge. Pay. Retry.

Pay the returned BOLT11 invoice and retry with the token and preimage.

Authorization: L402 <token>:<preimage>L402 manifest

Free preview

See a real result.

Call the live Bitcoin price tool without a wallet or account.

Ready.

Agent setup

Discover first. Pay second.

Inspect names, schemas, exact prices, rails, and maximum possible charge.

Payment manifest

Names, schemas, prices, rails.

GET /.well-known/agent-payments.json

MCP discovery

Free tool listing and annotations.

GET /mcp

L402 manifest

REST-shaped paid endpoints for L402 buyers.

GET /.well-known/l402-manifest.json