Public work receipt · checkable record

Ask Zambo anything · saved and checkable

✓ This result hasn’t changed since it was saved.

Sent using Zambo

Saved:
What ran: zambo_universal
Job summary: need: start; goal: start

Zambo is the verifiable work layer for AI.

Observed result

{"primary_job":"capability_search","executed":true,"result":{"query":"start","tools":[{"rank":1,"name":"new_session","description":"Start a genuinely fresh Zambo working session and return a new session_id. No arguments are required. Pass the returned session_id as _session_id on subsequent Zambo calls to keep continuity within this new conversation. Changing or omitting the session_id starts clean context; it does not load or copy any previous session.","input_hints":{"type":"object","properties":{"_caller_label":{"type":"string","maxLength":80,"description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","default":"zambo-starter"},"_caller_handle":{"type":"string","maxLength":64,"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization."},"_ref":{"type":"string","format":"uuid","description":"Optional handover referral ID from your install link."}},"required":[]}},{"rank":2,"name":"credithunt","description":"Zambo Stack - Live, verified index of every AI and cloud startup credit program available right now. 29+ active programs including AWS Activate, Google Cloud, Azure, OpenAI, Anthropic, Vercel, Supabase, Modal, Groq, Replicate, and more. Verified daily - dead links auto-removed. Optionally filter by stack, stage, and minimum value. Returns count, updated_at, opportunities, and api. Free, no auth.","input_hints":{"type":"object","properties":{"stack":{"type":["array","string"],"items":{"type":"string"},"description":"Optional stack filter. Example: [\"openai\",\"vercel\",\"aws\"]. Leave empty to include all programs."},"stage":{"type":"string","enum":["solo","early","growth","seed","pre-seed","series A","series B","series C"],"description":"Your stage: solo (1 person), early (2 to 10), growth (10+). Default: solo."},"min_value":{"type":"number","description":"Minimum credit value in USD to filter by (optional). Example: 5000"},"_caller_label":{"type":"string","maxLength":80,"description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","default":"zambo-starter"},"_caller_handle":{"type":"string","maxLength":64,"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization."},"_ref":{"type":"string","format":"uuid","description":"Optional handover referral ID from your install link."}}}},{"rank":3,"name":"ghost_audit_status","description":"Check the status of a running Ghost Audit. Pass the audit_id returned by ghost_audit_site. Returns status: 'complete' when the full markdown report is ready to download, or 'running' with elapsed time. Poll every 15-30 seconds after starting an audit. Typical completion time: 60-120 seconds.","input_hints":{"type":"object","properties":{"audit_id":{"type":"string","description":"The audit_id returned by ghost_audit_site"},"_caller_label":{"type":"string","maxLength":80,"description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","default":"zambo-starter"},"_caller_handle":{"type":"string","maxLength":64,"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization."},"_ref":{"type":"string","format":"uuid","description":"Optional handover referral ID from your install link."}},"required":["audit_id"]}},{"rank":4,"name":"ghost_audit_site","description":"Run website ghost audit on any website. Returns SEO gaps, AI discoverability issues, conversion leaks, brand presence gaps, and competitor intelligence. 10 stages: RECON → INFRASTRUCTURE → SEO → PAGE COVERAGE → AI LAYER → CONVERSION → BRAND PRESENCE → COMPETITION → CREATIVE GAPS → SYNTHESIS. Score: 0-100 with CRITICAL/HIGH/MEDIUM/LOW findings per stage. Returns audit_id + stream_url (SSE for live stage-by-stage output) + download_url (full markdown report). Stream starts immediately; full report ready in about 90 seconds. Free policy: one audit start per caller per UTC day. The first successful start returns an audit ID; repeats that day return daily_limit. A transient engine failure releases the reservation so you can retry. The shared MCP quota is 20 metered calls per UTC day across all tools, plus one free wrap-up handover per day; reaching the call limit returns the standard HTTP 402 payment challenge. Zambo Pass or Day Pass provides unlimited audits.","input_hints":{"type":"object","properties":{"url":{"type":"string","description":"Full website URL to audit (e.g., https://yoursite.com). Include https://."},"email":{"type":"string","description":"Optional email tied to an active Zambo Pass or Day Pass for unlimited audits."},"_caller_label":{"type":"string","maxLength":80,"description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","default":"zambo-starter"},"_caller_handle":{"type":"string","maxLength":64,"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization."},"_ref":{"type":"string","format":"uuid","description":"Optional handover referral ID from your install link."}},"required":["url"]}},{"rank":5,"name":"zambo_home","description":"Your private Zambo starting point: six ready-to-say goals, today's receipts and actual usage. Ask what Zambo can do for your business, site, code or money. Free.","input_hints":{"type":"object","properties":{"_caller_label":{"type":"string","maxLength":80,"description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","default":"zambo-starter"},"_caller_handle":{"type":"string","maxLength":64,"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization."},"_ref":{"type":"string","format":"uuid","description":"Optional handover referral ID from y

This is the saved result preview, not proof that the answer was correct.

Check this receipt Run your own
Show technical provenance details

Provenance for every timeline entry

  • EXECUTED BY ZAMBOZambo ran the tool call itself.
  • OBSERVED VIA GATEWAYA Zambo gateway observed request and response bytes from the named external executor. Zambo did not run that external action.
  • LOGGED BY AGENTAn agent or local hook reported the action. Zambo attests that the record is unchanged since logging, not that the action happened as described.

Private agent reasoning, built-in client actions, and direct calls to unrelated MCP servers are not included unless an agent or gateway reports them.

What is an execution receipt?

An execution receipt is a public record of a reported AI agent tool call. Its byte commitment and provenance claim can be checked independently; neither alone authenticates the issuer. Read the canonical definition of an AI agent execution receipt.

What the receipt can and cannot prove

What is this?

Zambo's receipt store reports a tool call and records its result. The SHA-256 commitment covers the exact canonical bytes. The provenance label is bound to v0.4 receipt bytes when that check passes, but no pinned signature or trusted issuer key is checked. An anchor can timestamp a fingerprint; it does not authenticate the issuer.

Keep the work moving

This receipt records a completed tool call. When the free allowance is not enough, choose the access path that fits the job.

UNLOCK 24H DAY PASS ($0.99) →

See all plans on the pricing page →

RUN YOUR OWN FREE CALL →

Or re-run this exact call, using the same tool and arguments.

Share this receipt

Share on X · Share on LinkedIn ·

Show technical verification checks

Verification checks

  • SHA-256 commitment: Checked independently against the exact decoded bytes
  • Provenance binding: PASS; The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.
  • Metadata binding: PASS; metadata_hash matches the canonical metadata block.
  • Issuer authentication: NOT CHECKED; no pinned signing key or trusted issuer was supplied
  • Signature: NOT CHECKED; no Ed25519 signature or pinned key is supplied
  • Chain: NOT CHECKED; no append-only chain proof is validated
  • Stored timestamp: 2026-11-09T05:17:35.728Z; external immutability is not checked

Get proof like this from your own AI

Add to my AI ·

Get receipts for your own AI work: add zambo.dev/mcp

One URL, no key. Copy the line for your AI and add it yourself in its settings.

  • ClaudeSettings, Connectors, Add custom connector, paste the URL.
    https://zambo.dev/mcp
  • ChatGPTSettings, Apps and Connectors, developer mode, create a connector with this URL.
    https://zambo.dev/mcp
  • GrokAdd a remote MCP server in your Grok client and paste the URL.
    https://zambo.dev/mcp
  • CursorPaste into ~/.cursor/mcp.json.
    {"mcpServers":{"zambo":{"url":"https://zambo.dev/mcp"}}}

Nothing is installed automatically. Full setup guides

Want a verifiable receipt for every job your bots do?

Add Zambo Receipt Bot to your team · File this in Receipt Bot

Show receipt data and verification evidence

Committed provenance claim

EXECUTED BY ZAMBO

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID
7f665cba-b251-4db6-b2ff-fae7db3137d6
SHA-256 output hash
sha256:f2e2ee12a52b9efaa65d78059458eccccb29e574211aaeabccca211c07fb8b2a
Canonical bytes
{"caller":{"id":"sha256:6630ff848708023c024d91a05180496188042cd6b83b6985370a0cee55ae60bb","type":"session"},"issuer_claims":{"provenance_class":"EXECUTED BY ZAMBO"},"output":{"executed":true,"primary_job":"capability_search","result":{"message":"These tools are available on the default connection.","query":"start","tools":[{"description":"Start a genuinely fresh Zambo working session and return a new session_id. No arguments are required. Pass the returned session_id as _session_id on subsequent Zambo calls to keep continuity within this new conversation. Changing or omitting the session_id starts clean context; it does not load or copy any previous session.","input_hints":{"properties":{"_caller_handle":{"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization.","maxLength":64,"type":"string"},"_caller_label":{"default":"zambo-starter","description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","maxLength":80,"type":"string"},"_ref":{"description":"Optional handover referral ID from your install link.","format":"uuid","type":"string"}},"required":[],"type":"object"},"name":"new_session","rank":1},{"description":"Zambo Stack - Live, verified index of every AI and cloud startup credit program available right now. 29+ active programs including AWS Activate, Google Cloud, Azure, OpenAI, Anthropic, Vercel, Supabase, Modal, Groq, Replicate, and more. Verified daily - dead links auto-removed. Optionally filter by stack, stage, and minimum value. Returns count, updated_at, opportunities, and api. Free, no auth.","input_hints":{"properties":{"_caller_handle":{"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization.","maxLength":64,"type":"string"},"_caller_label":{"default":"zambo-starter","description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","maxLength":80,"type":"string"},"_ref":{"description":"Optional handover referral ID from your install link.","format":"uuid","type":"string"},"min_value":{"description":"Minimum credit value in USD to filter by (optional). Example: 5000","type":"number"},"stack":{"description":"Optional stack filter. Example: [\"openai\",\"vercel\",\"aws\"]. Leave empty to include all programs.","items":{"type":"string"},"type":["array","string"]},"stage":{"description":"Your stage: solo (1 person), early (2 to 10), growth (10+). Default: solo.","enum":["solo","early","growth","seed","pre-seed","series A","series B","series C"],"type":"string"}},"type":"object"},"name":"credithunt","rank":2},{"description":"Check the status of a running Ghost Audit. Pass the audit_id returned by ghost_audit_site. Returns status: 'complete' when the full markdown report is ready to download, or 'running' with elapsed time. Poll every 15-30 seconds after starting an audit. Typical completion time: 60-120 seconds.","input_hints":{"properties":{"_caller_handle":{"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization.","maxLength":64,"type":"string"},"_caller_label":{"default":"zambo-starter","description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","maxLength":80,"type":"string"},"_ref":{"description":"Optional handover referral ID from your install link.","format":"uuid","type":"string"},"audit_id":{"description":"The audit_id returned by ghost_audit_site","type":"string"}},"required":["audit_id"],"type":"object"},"name":"ghost_audit_status","rank":3},{"description":"Run website ghost audit on any website. Returns SEO gaps, AI discoverability issues, conversion leaks, brand presence gaps, and competitor intelligence. 10 stages: RECON → INFRASTRUCTURE → SEO → PAGE COVERAGE → AI LAYER → CONVERSION → BRAND PRESENCE → COMPETITION → CREATIVE GAPS → SYNTHESIS. Score: 0-100 with CRITICAL/HIGH/MEDIUM/LOW findings per stage. Returns audit_id + stream_url (SSE for live stage-by-stage output) + download_url (full markdown report). Stream starts immediately; full report ready in about 90 seconds. Free policy: one audit start per caller per UTC day. The first successful start returns an audit ID; repeats that day return daily_limit. A transient engine failure releases the reservation so you can retry. The shared MCP quota is 20 metered calls per UTC day across all tools, plus one free wrap-up handover per day; reaching the call limit returns the standard HTTP 402 payment challenge. Zambo Pass or Day Pass provides unlimited audits.","input_hints":{"properties":{"_caller_handle":{"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization.","maxLength":64,"type":"string"},"_caller_label":{"default":"zambo-starter","description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","maxLength":80,"type":"string"},"_ref":{"description":"Optional handover referral ID from your install link.","format":"uuid","type":"string"},"email":{"description":"Optional email tied to an active Zambo Pass or Day Pass for unlimited audits.","type":"string"},"url":{"description":"Full website URL to audit (e.g., https://yoursite.com). Include https://.","type":"string"}},"required":["url"],"type":"object"},"name":"ghost_audit_site","rank":4},{"description":"Your private Zambo starting point: six ready-to-say goals, today's receipts and actual usage. Ask what Zambo can do for your business, site, code or money. Free.","input_hints":{"properties":{"_caller_handle":{"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization.","maxLength":64,"type":"string"},"_caller_label":{"default":"zambo-starter","description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","maxLength":80,"type":"string"},"_ref":{"description":"Optional handover referral ID from your install link.","format":"uuid","type":"string"}},"type":"object"},"name":"zambo_home","rank":5},{"description":"Create or reopen a named private thread under an existing Zambo job. Uses the shared daily work-call allowance. Keep the owning _session_id and use the returned thread_id alongside it when reading that thread.","input_hints":{"properties":{"_caller_handle":{"description":"Opaque anonymous continuity handle returned during initialize. Reuse it across MCP sessions; it is not payment authorization.","maxLength":64,"type":"string"},"_caller_label":{"default":"zambo-starter","description":"Optional self-reported caller label. It is recorded as a claim, not independently verified.","maxLength":80,"type":"string"},"_ref":{"description":"Optional handover referral ID from your install link.","format":"uuid","type":"string"},"name":{"description":"Short name that another AI can use to identify this work thread.","maxLength":80,"minLength":1,"type":"string"}},"required":["name"],"type":"object"},"name":"continuity_start_thread","rank":6}]}},"receipt_schema_version":"0.4","side_effects":{"declaration_hash":"sha256:dfb4412aa429d3ac637a05668c435bcc90a251363fcdd49f7b85ae4ab55b5bc9","declared":["state_write"],"schema_version":"zambo-side-effects/1"},"tool":{"name":"zambo_universal","scope":"public","version":"4.0.0"}}
Timestamp

Bound call context

Receipt schema
0.4
Tool name
zambo_universal
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:6630ff848708023c024d91a05180496188042cd6b83b6985370a0cee55ae60bb
Declared side effects
state_write
Side-effects schema
zambo-side-effects/1
Declaration hash
sha256:dfb4412aa429d3ac637a05668c435bcc90a251363fcdd49f7b85ae4ab55b5bc9

This records what the server-side tool contract declared at call time. It does not independently verify that a downstream side effect happened.

Bound upstream evidence

Status
empty
Evidence SHA-256
unavailable
Byte length
unavailable

Upstream provenance

This receipt is independently auditable against the named upstream source. This is not a mathematical correctness claim.

  • Source: · queried at: · raw response hash:

Neutral Nostr anchor

Event ID
b3de55bd33e77712c27afc2b54cbee48190dcf506b67323001802159e9d8fc36
Anchor status
published
Public key
e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-11-09T05:17:35.728Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:f2e2ee12a52b9efaa65d78059458eccccb29e574211aaeabccca211c07fb8b2a","receipt_uuid":"7f665cba-b251-4db6-b2ff-fae7db3137d6","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

Relay publication is separate from receipt integrity. When the original signed event is available, Zambo retries pending, partial, or failed anchors about once a minute. Relay acknowledgements are external, so there is no guaranteed completion time; the receipt remains checkable from its saved bytes and verification link.

Check this hash yourself

Receipt commitment: commitment matched; issuer, signature and chain not checked. This checks the saved bytes, not whether the answer was correct. Recompute the SHA-256 commitment in your browser. Open the API v2 JSON response to inspect the machine-readable checks. See the Nostr anchor event on a public viewer. The fingerprint is timestamped outside Zambo too.

Embed this receipt

Markdown

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/7f665cba-b251-4db6-b2ff-fae7db3137d6/badge.svg)](https://zambo.dev/run/7f665cba-b251-4db6-b2ff-fae7db3137d6?ref=badge)

HTML

<a href="https://zambo.dev/run/7f665cba-b251-4db6-b2ff-fae7db3137d6?ref=badge"><img src="https://zambo.dev/api/receipt/7f665cba-b251-4db6-b2ff-fae7db3137d6/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

Recent receipts

122,499 verifiable receipts minted

RUN YOUR OWN FREE CALL →

Get your own: connect https://zambo.dev/mcp. Free daily calls, no API key.

Open the interactive receipt view

Your AI's work could look like this

Run a first job free in Zambo Chat. No account needed.

Start a free job Day Pass · $0.99 for 24 hours