# tollbooth-sample MCP server

Educational Weather Stats MCP Service — Tollbooth DPYC monetization sample

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-lonniev-tollbooth-sample
- Repository: https://github.com/lonniev/tollbooth-sample

## Install
- Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- Auth: Not captured

## Setup notes
- Remote endpoint: https://tollbooth-sample.fastmcp.app/mcp

## Tools
- weather_check_balance - Check a patron's credit balance at this operator.

This is the patron's spending balance — credits purchased via
Lightning for tool calls at this operator. For the operator's
own balance at the Authority (needed to certify patron purchases),
use authority_check_balance instead.

Free — no credits required. Proof of npub ownership is required
to prevent anyone-with-the-registry from enumerating balances. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_purchase_credits - Buy credits via Bitcoin Lightning.

Creates a Lightning invoice. Pay it with any Lightning wallet,
then call check_payment to confirm. Proof of npub ownership is
required so credits land in the correct ledger.

Free — no credits required to call. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_check_payment - Check the payment status of a Lightning invoice.

Call after paying the invoice from purchase_credits.
Free — no credits required. Proof of npub ownership is required
to prevent credit-grant front-running by an observer of the
invoice ID. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_restore_credits - Credit a patron's ledger from a BTCPay-settled invoice.

**RESTRICTED to the operator** — the operator owns the books and is
the only party who can issue a manual credit grant. Patrons who
believe they paid but never got credits must escalate to the
operator's support, who then invokes this tool on their behalf.

Use cases: cold-start vault races during check_payment, ncred
delivery hiccups, patrons closing Top-Off sheets before settle,
any infrastructure incident that left an invoice settled at BTCPay
but uncredited on the operator's ledger.

Idempotent — if the invoice is already credited (in the patron's
``credited_invoices``), returns success with credits_granted=0. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_account_statement - Generate a patron's account statement at this operator.

Returns the patron's purchase history, active credit tranches,
per-tool usage breakdown, and recent daily usage logs. This is
the patron's spending account — not the operator's Authority
tax balance.

Free — no credits consumed. Proof of npub ownership is required
to prevent statement-scraping of arbitrary patrons. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_account_statement_infographic - Generate a visual SVG infographic of your account statement.

Returns the same data as account_statement, rendered as a dark-themed
SVG graphic with balance hero, metrics cards, health gauge, tranche
table, and tool usage breakdown. Costs 1 api_sat per call. Proof is
verified by ``debit_or_deny`` before any cost is incurred. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_report_issue - File a field report about this service as a GitHub issue on the operator's repo.

Found a tool's metadata or response wrong or confusing? Report it where the tool
lives. The **author of record is your npub** — no npub / no proof, no issue — and it
is stamped into the issue so the report is attributed to you, not the operator. Costs
a small fee (a free write to an issue tracker would be abused). The report is PUBLIC
and goes to the maintainers' normal triage; nothing is verified here.

Returns the filed issue's repo, number, and url. If this operator has not enabled
field reports, returns an "issue reporting not configured" situation and you are not
charged. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_service_status - Check the health and configuration of this service. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_get_operator_onboarding_status - Report this operator's configuration readiness.

Shows which operator settings are configured, which are missing,
and how to deliver each missing value. For patron-level credential
status, use get_patron_onboarding_status instead. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_get_patron_onboarding_status - Report a patron's credential readiness for this operator.

For set-once services (eXcalibur, TheBrain), shows which patron
secrets are configured and which are missing. For dynamic/OAuth2
services (Schwab), reports that no patron credentials are needed.
Free. Proof of npub ownership is required because credential
presence is sensitive information about the patron's setup. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_session_status - Check operator readiness. Returns the operator lifecycle
state and clear guidance on what to do next. Free.

Lifecycle states:
- ready: Operator is warm and fully operational — vault AND pricing
  model verified. Proceed with tool calls.
- warming_up: Operator is initializing (cold start). Try a tool call — it will warm up on demand.
- misconfigured: Persistence rejected a query with a permanent SQL
  error (permission denied, missing relation). Paid tools will fail
  until the operator repairs the database — retrying does not help.
- quota_exceeded: The persistence provider (Neon) answered HTTP 402 —
  the operator's database has exhausted its compute/storage quota, so
  the books are locked for billing. Paid tools fail; retrying does NOT
  help. The operator's Authority must restore capacity (upgrade the
  plan or wait for the quota reset). Free tools remain available.
- not_registered: Operator has no Authority relationship yet. Call register_operator first.
- no_identity: Operator nsec is not configured. Deployment issue. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_request_credential_channel - Open a Secure Courier channel for credential delivery.

This is the CREDENTIAL-DELIVERY flow — use it to hand over a service
secret (API keys, tokens). To merely prove you control an npub (the
usual answer to a ``proof_required`` error), use ``request_npub_proof``
instead. Note: dynamic/OAuth2 services (e.g. Schwab) need NO couriered
secret — check ``service_status`` first.

Sends a welcome DM with a credential template. The recipient
must read the DM in their Nostr client, fill in the fields,
and reply manually. **This is a human-in-the-loop flow.**

After calling this tool, STOP and tell the user what to do.
Wait for the user to confirm they have replied before calling
``receive_credentials``. Do NOT poll or retry — each
``receive_credentials`` call destructively drains the relay
mailbox. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_receive_credentials - Pick up credentials from the Secure Courier.

Completes the CREDENTIAL-DELIVERY flow (the ownership-proof
counterpart is ``receive_npub_proof``).

**Call this only after the user confirms they have replied.**
Deterministic, one-shot retrieval: name the response you want with
``(sender_npub, service, dpop_token)`` and the tool drains ONLY the
rendezvous relay that channel was pinned to. Every popped DM with the
wrong session phrase is deleted and its sender is NACK'd; the first DM
with the matching phrase is accepted (ACK'd) and the scan stops. If
none match, the queue is drained and a ``courier_not_found`` result is
returned. Do NOT poll, loop, or retry.

If a credential_card (ncred1...) is provided, it is redeemed directly
without any relay access (dpop_token not required for that path). On
success, the payment processor client is reinitialized from the new
credentials — no server restart needed. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_forget_credentials - Delete vaulted credentials for a specific service and npub.

For operator credentials, pass the operator's own npub. For patron
credentials, pass the patron's npub. Always requires proof of
npub ownership — a deletion is as destructive as a write. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_update_patron_credential - Add or update a single patron credential field.

Merges into existing stored credentials without affecting
other fields. Useful for setting an account identifier
after OAuth, changing a default brain, etc. Free. Proof of
npub ownership is required — this is a write to the patron's
sensitive credential vault. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_delete_patron_credential - Remove a single patron credential field.

Deletes one field from stored credentials without affecting
other fields. Free. Proof of npub ownership is required —
this is a write to the patron's sensitive credential vault. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_get_patron_credential_fields - List stored patron credential field names (not values).

Returns the names of fields stored for a patron, plus each
field's ``delivered_at`` ISO-8601 timestamp when known (null
for secrets vaulted before timestamps were recorded). Values
are never exposed — use this to verify which fields are
configured and how old each one is. Free. Proof of npub
ownership is required: the list of configured fields is itself
sensitive (reveals which integrations a patron has set up). Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_request_npub_proof - Request npub ownership proof from a patron via Nostr DM.

This is the npub-OWNERSHIP-PROOF flow — use it when a call returns
``proof_required``. It proves the caller controls an npub; it does
NOT deliver any service secret. To hand an operator its API keys or
OAuth secrets, use ``request_credential_channel`` instead.

Sends a challenge DM that the patron must sign and reply to
using their Nostr client. **This is a human-in-the-loop flow.**

After calling this tool, STOP and tell the user to check their
Nostr client and reply to the challenge. Wait for the user to
confirm they have replied before calling ``receive_npub_proof``.
Do NOT poll or retry — each ``receive_npub_proof`` call
destructively drains the relay mailbox.

**Returns** a ``dpop_token`` — the demonstrated-proof-of-possession
token that the calling application MUST remember and pass as the
``dpop_token`` parameter on every subsequent paid tool call. The MCP
does not retain this value across restarts.

**Lifecycle:** The cached proof expires after the patron's
chosen duration. When it expires, call ``request_npub_proof``
again for a fresh challenge, then wait for the user, then
call ``receive_npub_proof``.

Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_receive_npub_proof - Receive npub ownership confirmation from a patron.

Completes the npub-OWNERSHIP-PROOF flow (the credential-delivery
counterpart is ``receive_credentials``).

**Call this only after the user confirms they have replied.**
Deterministic, one-shot retrieval: name the response with
``(patron_npub, dpop_token)`` — the ``dpop_token`` being the value
returned by ``request_npub_proof``. The tool drains ONLY the pinned
rendezvous relay that challenge was published on, stopping at the DM
whose phrase matches. Mismatched DMs are deleted and NACK'd (without
revealing the expected phrase). If called before the user replies,
their message will never be found. Do NOT poll, loop, or retry.

The signed DM itself proves npub ownership (the patron's nsec
signed it). On success, returns the ``dpop_token`` — the same
token. The calling application MUST remember it and pass it as the
``dpop_token`` parameter on every subsequent paid tool call. The
proof (a hash of the token) is stored in the vault keyed by that
hash — the MCP never stores the raw token itself. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_check_proof_status - Check whether a previously-cached dpop_token is still valid.

Mirrors ``check_oauth_status`` for the npub-proof flow: a calling
agent can ask "will my next paid call accept this dpop_token?"
before burning credits on a guaranteed failure.

Free, no side effects — does not evict the cache or touch relays. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_oracle_how_to_join - Get DPYC onboarding instructions from the Oracle. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_oracle_get_tax_rate - Get the current DPYC certification tax rate. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_oracle_lookup_member - Look up a DPYC community member by npub. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_oracle_about - Describe the DPYC ecosystem via the Oracle. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_oracle_network_advisory - Get active network advisories from the Oracle. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_check_authority_balance - Check this operator's tax balance at the Authority.

Returns the sats available for certifying patron credit purchases.
When this balance reaches zero, patron top-ups cannot be certified
and the operator must call purchase_credits on the Authority.

This is the operator's own funding — not a patron balance. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_get_pricing_model - Get the active pricing model for this operator. Free.

If no model exists, self-initializes a scaffold with all
registered tools at 0 sats.  No economic data from code. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_set_pricing_model - Set the active pricing model. RESTRICTED to operator.

Requires a valid proof (Schnorr-signed kind-27235 event)
proving the caller holds the operator's nsec. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_reset_pricing_model - Erase all pricing models and restore a viable default.

Deletes every stored model, then self-initializes a fresh one
from the tool registry — all tools at 0 sats with proper UUIDs.
Returns the new model.

RESTRICTED to operator — requires proof (nsec-signed). Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_request_adoption - Ask a chosen Authority to adopt this operator (deferred courtship).

RESTRICTED to the operator — requires proof the caller controls this
operator's npub. Resolves the Authority's MCP endpoint from the
community registry, mints an inline ownership proof with this
operator's nsec, and delivers the request MCP-to-MCP. The Authority
records it as pending; its owner approves on their own time. Poll
``adoption_status`` for progress; the operator flips to ``ready``
once the Authority provisions it. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_adoption_status - Check this operator's adoption-request status at a chosen Authority.

Free. Polls the Authority MCP-to-MCP for the status of this operator's
request (pending / approved / rejected / provisioned). Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_restore_neon_schema - Re-run ``ensure_schema()`` on every NeonVault this operator uses.

Diagnostic / recovery tool for the case where the Neon HTTP SQL API
is returning persistent 4xx errors and the operator suspects the
schema isn't there or grants are wrong. Idempotent — uses
``CREATE TABLE IF NOT EXISTS`` so a successful re-run is harmless.

Returns the per-step result. If any step raises, surfaces the Neon
error message inline (0.31.0 reads the SQL error body that earlier
wheels swallowed behind ``raise_for_status``).

RESTRICTED to operator — requires proof (nsec-signed). Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_list_canonical_identities - Return canonical (tool_id, mcp_name, …) for every tool the wheel exposes.

The authoritative source for any client (Studio, agents, FE)
that needs to know how this MCP identifies its tools.
Reconcile uses this output to UUID-join against the stored
pricing model — no name-based UUID derivation, no guessing.

Includes both ToolIdentity-seeded tools and any UUID recorded by
``@paid_tool`` that is missing from the registry. The latter appear
with ``registered: false`` (and in the top-level ``unregistered``
array) so Reconcile can flag deploy drift instead of silently
reporting clean when a live tool was never seeded (#174).

If the operator renames a function or rebrands a slug, the
mcp_name in this output changes but tool_id stays. That's the
whole point of the canonical-UUID design.

Also diffs the live FastMCP wire surface against the registry.
Tools exposed on the wire but absent from the registry appear in
``unregistered`` so Reconcile can flag deploy drift instead of
silently under-reporting (issue #175).

Free, no side effects. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_get_nostr_profile - Read an npub's public Nostr profile (NIP-01 kind-0 metadata).

Free, no proof — the data is already public on relays. Returns the
latest metadata fields (name, display_name, about, picture, banner,
nip05, website, lud16) or an empty profile if none is published. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_publish_nostr_profile - Publish a CLIENT-SIGNED kind-0 profile to relays for an npub.

The wheel never holds a patron nsec. The frontend signs the kind-0
metadata event with the patron's session key or a NIP-07 extension and
passes the signed event (JSON) here; the wheel verifies the signature
matches the npub, then relays it to public relays. The signature is the
authorization — no proof token, no key custody. Free. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_check_price - Preview the effective cost of a tool call.

Shows the base cost and any constraint effects (discounts, free
trials, surge pricing). Free — no credits required. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_list_constraint_types - List all available constraint types and their parameter schemas.

Returns the type, category, description, and parameter specs for
every constraint that can be used in a pricing pipeline.
Free — no credits required. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_mint_coupon - Create a new operator-owned discount coupon. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_list_coupons - List every coupon this operator has minted (newest first).

Each row carries the current ``times_redeemed`` counter — the
Studio renders a progress bar from this against ``total_uses``.
RESTRICTED to operator — requires proof. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_update_coupon - Patch a coupon's editable fields.

Pass only the fields you want to change.  To set a cap to
unlimited (NULL in the schema), pass ``clear_uses_per_patron=true``
or ``clear_total_uses=true``.  Renaming the code is allowed —
existing patron redemption rows survive (they key on coupon id).

RESTRICTED to operator — requires proof. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_delete_coupon - Delete a coupon.  Cascades to all patron redemptions.

Any chain step referencing the deleted coupon_id becomes a
no-op (the constraint returns neutral on unknown ids) — the
Studio surfaces orphan references as warnings.

RESTRICTED to operator — requires proof. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_redeem_coupon - Claim a coupon by its name (the code the operator shared).

Looks up the operator's coupon by ``code``, validates the window
and total cap, and records a per-patron redemption row.
Subsequent paid tool calls on this MCP auto-apply the discount
until ``uses_per_patron`` is exhausted.

Free — no credits required.  Requires proof of ``npub``.
Idempotent: redeeming the same code twice returns the existing
redemption. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_list_my_coupons - List the coupons this patron has redeemed on this operator.

Returns both active and exhausted redemptions with a per-row
``status`` (``active`` / ``window_closed`` / ``patron_limit`` /
``total_limit``).  Free — requires proof of ``npub``. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_forget_coupon - Remove a coupon from this patron's redemption list.

Cosmetic only — the coupon itself still exists at the operator,
and the patron can re-redeem the same code later while the
window allows.  Free — requires proof of ``npub``. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_notarize_ledger - Build a Merkle tree of all patron balances and submit the root
to Bitcoin via OpenTimestamps.

Operator-only background task. Bitcoin confirmation takes 1-6 hours.
Free — no credits required. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_get_notarization_proof - Generate a Merkle inclusion proof that a patron's balance was
included in a Bitcoin-notarized snapshot. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_list_notarizations - List recent Bitcoin notarization records. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_current - Get current weather conditions for a location.

Returns temperature, wind speed, and weather code from Open-Meteo. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_forecast - Get a multi-day weather forecast for a location.

Returns daily high/low temperatures and precipitation for 1-16 days. Endpoint: https://tollbooth-sample.fastmcp.app/mcp
- weather_historical - Get historical weather data for a location and date range.

Returns daily temperature and precipitation from the Open-Meteo archive. Endpoint: https://tollbooth-sample.fastmcp.app/mcp

## Resources
Not captured

## Prompts
Not captured

## Metadata
- Owner: io.github.lonniev
- Version: 0.4.2
- Runtime: Streamable Http
- Transports: HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Jul 16, 2026
- Source: https://registry.modelcontextprotocol.io