A2A Retailmedia — the agentic retail-media hub for grocery
REMOTE · MCP.A2A-RETAILMEDIA.AI
Connecting grocery retail to 350k makers for media buys.
Available components
Last scanned (20 hours ago)
Scores higher than 74% of remote servers
Reachable. Last reached 23 Oct 2026.
Category Marketing and SEO
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability63
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 1535 tokens (~80/item across 19 items; 19 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management60
- Stability observed for 18 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage71
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 19 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 20 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 22 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.
- 20 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Tool “get_banner_card” rewrote its description, which is the text the model reads security
- Schema quality: good → fair functional
- Server version: 4.0.3 → 1.0.11 functional
- 19 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Tool “resolve_gtin” rewrote its description, which is the text the model reads security
- 15 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.
- 13 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Oct 26 +3
- Stability: unverified → 0.17 ▲ functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 23 Oct 2026 · Probed https://mcp.a2a-retailmedia.ai/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=a2a-retailmedia.ai | CN=YE1,O=Let's Encrypt,C=US | 4 Oct 2026 | 2 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 5f86168afb7084ae12fdd3de09c79aa3b00 |
| SANs: *.a2a-retailmedia.ai, a2a-retailmedia.ai | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.a2a-retailmedia.ai. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| ai. | present | 3799 | 8 | Verified |
| a2a-retailmedia.ai. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.a2a-retailmedia.ai/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.a2a-retailmedia.ai/mcp | HTTPS enforced | 301 | https://mcp.a2a-retailmedia.ai/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
a2a_handoff A2A Handoff ~45
Hand to a person: the state of a handoff and its Navigator desk ticket, where the media program has no agent.
| Name | Type | Req | Description |
|---|---|---|---|
| handoff_id | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
check_eligibility Check Eligibility ~72
Confirm it is on the shelf: does the grocery record list this GTIN at this banner in this market? No listing, no media pitch. Read live from the A2A Grocery door.
| Name | Type | Req | Description |
|---|---|---|---|
| banner | string | yes | – |
| country_iso | string | yes | – |
| gtin | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
enrol_maker Enrol Maker ~96
Makers: be seen. Enrol a maker for media exposure in grocery: its name, its markets (one or more of the 20), the tick, and a contact a person can answer. Enrolment only — a handoff waits for a budget a person has approved.
| Name | Type | Req | Description |
|---|---|---|---|
| contact | string | yes | – |
| maker | string | yes | – |
| markets | array | yes | – |
| media_exposure | boolean | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
find_buyer Find Buyer ~52
Qualify the buyer: find a maker on the grocery record by name, with its own website where the record has one.
| Name | Type | Req | Description |
|---|---|---|---|
| decision_id | – | – | – |
| maker | string | yes | – |
| market | – | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
find_makers Find Makers ~86
Find the brand: makers on the grocery record of one market (node = one of the 20 markets). segment is taken as a lane where it names one (organic, free-from, plant-based, artisan, origin, premium). Read live from the A2A Grocery door.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | – | – | – |
| node | – | – | – |
| region | – | – | – |
| segment | – | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
gate_transaction Gate Transaction ~56
The gate before a handshake: allow or deny for one market and one actor class. Returns a decision_id the handshake tools ask for. A deny is not charged.
| Name | Type | Req | Description |
|---|---|---|---|
| actor_class | string | yes | – |
| market | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
get_banner_card Get Banner Card ~50
The signed card of one banner and its status (listed · claimed · verified). banner = the banner's slug, id or name.
| Name | Type | Req | Description |
|---|---|---|---|
| banner | string | yes | – |
| market | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
list_banner_cards List Banner Cards ~64
The cards of one market, optionally by status (unclaimed, claimed, registered): banner, media program, status and the card's address.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| market | string | yes | – |
| offset | integer | – | – |
| status | – | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
list_banners List Banners ~79
Pick the banners: the grocery banners of one market with each one's media program (or "none listed") and card status. with_program=true returns only banners with a program listed.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| market | string | yes | – |
| offset | integer | – | – |
| search | – | – | – |
| with_program | boolean | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
list_packages List Packages ~84
Match a package: what one banner's media program says it sells, in the program's own words, each tagged onsite, offsite or in-store. Offsite is tagged so it is never taken for a shelf slot. Empty where no program is listed — the agent stops.
| Name | Type | Req | Description |
|---|---|---|---|
| banner | string | yes | – |
| decision_id | – | – | – |
| market | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
log_audit Log Audit ~36
Write one audit line for a step of the chain; returns its id.
| Name | Type | Req | Description |
|---|---|---|---|
| detail | – | – | – |
| event | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
pull_measurement Pull Measurement ~48
Read the till: results of a campaign, returned by the retailer's program. Available only after the program returns a campaign id for a handoff.
| Name | Type | Req | Description |
|---|---|---|---|
| handoff_id | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
quote_package Quote Package ~61
Price it: returns where the banner's own media program publishes its rates or takes an enquiry. GSC never prices; a quote comes from the retailer's program.
| Name | Type | Req | Description |
|---|---|---|---|
| banner | string | yes | – |
| decision_id | – | – | – |
| market | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
receive_demand Receive Demand ~71
Retailer side: a registered program agent takes a qualified packet. Only a card in the registered state can receive; any other card is refused and nothing is charged.
| Name | Type | Req | Description |
|---|---|---|---|
| banner | string | yes | – |
| decision_id | – | – | – |
| handoff_id | string | yes | – |
| market | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
renew_package Renew Package ~70
Renew: a prior quote id from the retailer's program and a new approved budget. Without a quote id from the program there is nothing to renew.
| Name | Type | Req | Description |
|---|---|---|---|
| budget | number | yes | – |
| budget_approved_by | string | yes | – |
| decision_id | – | – | – |
| prior_quote_id | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
resolve_actor Resolve Actor ~48
Who is asking? maker, brand_owner, agency, distributor or retailer_media_team (trade); auditor (read only). The consumer is never the counterparty.
| Name | Type | Req | Description |
|---|---|---|---|
| actor_class | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
resolve_gtin Resolve Gtin ~84
Product record from gtinfetch.ai (signed); hub layer: seat, market, claim, price, availability. Confirm the product is real: is this Global Trade Item Number (GTIN) well-formed, and is it on the grocery record, with its brand and maker. Read live from the A2A Grocery door.
| Name | Type | Req | Description |
|---|---|---|---|
| gtin | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
resolve_jurisdiction Resolve Jurisdiction ~58
Where is the media bought? Resolve a market (e.g. FR, UK, US, Japan) to one of the 20 markets on the record. UK is the label; GB is accepted.
| Name | Type | Req | Description |
|---|---|---|---|
| market | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
submit_demand Submit Demand ~147
Hand off: the packet — the maker, a budget a person has approved, one or more GTINs, a market and a list of banners — or a gap naming what is missing. Routes each banner by its card status: unclaimed is a referral, claimed goes to the retailer's media team, registered goes agent to agent. Settles at the door.
| Name | Type | Req | Description |
|---|---|---|---|
| banners | array | yes | – |
| budget | number | yes | – |
| budget_approved_by | string | yes | – |
| contact | string | yes | – |
| decision_id | – | – | – |
| gtins | array | yes | – |
| maker | string | yes | – |
| market | string | yes | – |
| note | – | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
How do I install the A2A Retailmedia — the agentic retail-media hub for grocery MCP server?
A2A Retailmedia — the agentic retail-media hub for grocery is a hosted endpoint at https://mcp.a2a-retailmedia.ai/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.a2a-retailmedia.ai
claude mcp add --transport http greencore-solutions-a2a-retailmedia 'https://mcp.a2a-retailmedia.ai/mcp'
What is the A2A Retailmedia — the agentic retail-media hub for grocery MCP server?
A2A Retailmedia — the agentic retail-media hub for grocery is an MCP server listed in the public MCP registry as io.github.greencore-solutions/a2a-retailmedia. Connecting grocery retail to 350k makers for media buys. This page covers its hosted endpoint (https://mcp.a2a-retailmedia.ai/mcp).
Is the A2A Retailmedia — the agentic retail-media hub for grocery MCP server safe to use?
A2A Retailmedia — the agentic retail-media hub for grocery scores 77 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the A2A Retailmedia — the agentic retail-media hub for grocery MCP server expose?
A2A Retailmedia — the agentic retail-media hub for grocery exposes 19 tools: resolve_jurisdiction, resolve_actor, gate_transaction, find_makers, resolve_gtin, and 14 more. Their descriptions and schemas cost roughly 1,307 tokens of context every time the server is loaded.
Does the A2A Retailmedia — the agentic retail-media hub for grocery MCP server require authentication?
No. We connected to A2A Retailmedia — the agentic retail-media hub for grocery without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the A2A Retailmedia — the agentic retail-media hub for grocery MCP server still maintained?
A2A Retailmedia — the agentic retail-media hub for grocery is still listed as active in the MCP registry. We last reached this channel on 23 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.