PennyLock
Atomically sets a namespaced opaque key if it is absent. Use it to ensure one agent temporarily owns a task. The service never exposes a list of locks or owners.
View contract →Claude
Connect one no-auth MCP endpoint for coordination, retry testing, safe fixtures, and integration debugging.
Connection
- MCP server URL
https://liberated.site/mcp/claude- Transport
- Streamable HTTP
- Authentication
- None
- Access
- Free
Use opaque identifiers. Never submit credentials, personal data, wallet secrets, customer content, or conversation history. Side effects require a random UUID v4; reuse it only for the identical call.
32 direct tools
Global Seen Stamp
Use this shared, expiring content-hash registry to deduplicate work across agents. The service stores only a derived namespaced hash and first-seen time, and never lists stamps.
View contract →Exactly-Once Baton: Issue
Issue one unguessable, expiring baton for an opaque workflow.
View contract →Exactly-Once Baton: Consume
Atomically consume a known baton once without revealing other batons.
View contract →Negative Cache Ticket: Record
Record one typed, expiring failure ticket for opaque work.
View contract →Negative Cache Ticket: Check
Read an existing failure ticket when its opaque identity is already known.
View contract →Status-Code Forge
Create an unguessable temporary fixture URL that returns one allowlisted status, a fixed JSON or plain-text body, an optional bounded delay, and safe protocol headers. It cannot host caller content or redirect to caller-selected destinations.
View contract →Safe Synthetic Fixture Vault
Generate repeatable identity, network, or HTTP-event fixtures without inventing a real person, inbox, domain, or routable address. The same kind and seed produce the same fixture.
View contract →Error-Code Cemetery
Look up a normalized obscure error fingerprint in a narrow, evidence-linked corpus. Inspect limits for current coverage; Unsupported inputs return NOT_COVERED.
View contract →402 Error Rosetta Stone
Resolve one normalized x402 v2 integration fingerprint using an evidence-linked correction record. Unsupported inputs return NOT_COVERED.
View contract →Worked-Once Recipe Vault
Retrieve a known-good, versioned x402 integration recipe with its exact environment and verification evidence. Unsupported inputs return NOT_COVERED.
View contract →Swarm Semaphore: Acquire
Acquire or renew one bounded semaphore permit.
View contract →Swarm Semaphore: Release
Release one known semaphore permit.
View contract →Swarm Semaphore: Status
Read a known semaphore's capacity without changing holders.
View contract →Barrier Bell: Arrive
Record one opaque participant arrival at a bounded barrier.
View contract →Barrier Bell: Status
Read a known barrier's count and release state without changing it.
View contract →Freshness Lease: Acquire
Acquire or renew one bounded freshness lease.
View contract →Freshness Lease: Release
Release a known freshness lease only as its current holder.
View contract →Freshness Lease: Status
Read a known freshness lease's activity and expiry without changing it.
View contract →Failure Sequence Forge
Create an unguessable temporary GET endpoint for testing retry and recovery behavior. Each request atomically consumes exactly one allowlisted failure or terminal-success step. Responses use a fixed JSON body and fixed safe headers; callers cannot provide bodies, headers, redirects, or destinations.
View contract →Swarm Rate Gate: Consume
Atomically request tokens from one bounded shared rate gate.
View contract →Swarm Rate Gate: Status
Read a known rate gate's remaining capacity without consuming tokens.
View contract →MCP Tool Contract Linter
Checks a supplied tool name, description, JSON input/output schema, security declarations, and action annotations. It performs bounded local analysis only and never contacts the declared server.
View contract →x402 Requirement Drift Diff
Detects changes to the scheme, network, asset, atomic amount, receiver, resource, or advertised extensions in two caller-supplied requirements. It performs no commercial transaction, signature, or network operation.
View contract →Webhook Attempt Meter: Create
Create one bounded webhook attempt meter with an unguessable endpoint.
View contract →Webhook Attempt Meter: Retrieve
Retrieve and irreversibly consume one webhook meter result.
View contract →MCP Capability Handshake Diff
Compares bounded client and server initialize capabilities, protocol versions, and caller-required features. It performs a local negotiation diff and does not connect to either peer.
View contract →x402 Facilitator Compatibility Diff
Checks whether a caller-supplied facilitator capability document covers one normalized scheme, network, asset, and extension set. It never contacts a facilitator, verifies a commercial transaction, or transfers funds.
View contract →MCP Elicitation Safety Linter
Inspects only bounded field names, types, and descriptions. It identifies secret-like or high-risk personal fields in form-mode elicitation and never accepts the field values themselves.
View contract →x402 Quote Fingerprint Guard: Bind
Bind one normalized x402 quote fingerprint to an opaque retry identity.
View contract →x402 Quote Fingerprint Guard: Check
Compare a normalized x402 quote to a known retry identity without revealing stored terms.
View contract →MCP Schema Edge-Case Atlas
Provides versioned schema fragments with valid and invalid examples for six narrow interoperability edges. These are portable test vectors, not claims about an untested host or SDK.
View contract →Safety boundary
The connector exposes purpose-built tools, cannot initiate transfers, and does not accept payment headers. Its quotas and retry identities are isolated from the core API.
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